I hope to get a G8 GT and supercharge it. I would hope to get at least 500lb-ft at the wheels. With a 10% powertrain loss, this means that the torque would go up to about 140%. I've always thought/heard that supercharged engines pump about 150% of the power of their naturally aspirated counterparts, with some superchargers even doubling the power. Do you have any idea/ball-park-guesses as to how much power a moderate supercharger would add?

BTW, what is the typical percentage of power lost in drivetrains?

How do superchargers effect the lifespan of an engine? A Toyota mech always said "Drive it like ya stole it, but keep it maintained". If a stock G8 GT lasted, say, 15 years before encountering repairs that cost more than it was worth, how long would that be for a supercharged G8?

What do you think the possibility is of Pontiac (or some division of GM) offering a supercharger upgrade to the G8 that will keep it under warranty?

Harrop has this supercharger for about $10k. http://www.harrop.com.au/root_folder/superchargers/stealth_hh122-ve.html
Is this a relatively good deal for a supercharger (kit) or could you find a decent one for around $5k?

The 6L80 is rated up to 430lb-ft (some say "up to 520"). If you put, say, near 600lb-ft of torque on it, would it rip it to pieces? or is that just the max that GM would allow for a vehicle with it so that they can be sure it lasts through the warranty?

If you knew that supercharging your engine could potentially destroy your transmission, would you replace the transmission as soon as you supercharged it or would you wait until it was dying and THEN replace it (or perhaps rebuilt stronger)?

Basically, I thought about the 6.0L V8 and assumed that it has a lot of room to increase its power, so I want to know how realistic a 500hp/500lb-ft at the rear wheels G8 would be and if it could be done for not too much more money (total cost under $40k or $45k max). I know aftermarket products won't be available for a while but I wanted to ask your thoughts on the matter.

20% loss on an automatic is normal. 18% on a manual seems good.

The question is can the 6.0L handle the super charging without effecting the active fuel mgment?

The question is can the 6.0L handle the super charging without effecting the active fuel mgment?

Who cares?

We already know that the 6.2 can be pumped to 550 eng hp with pretty much the same transmission in the CTS-V and pass standards for GM's 100,000 mile powertrain warranty. Certainly the 6.0 should be as capable when pushed.

The question is can the 6.0L handle the super charging without effecting the active fuel mgment?
I'm more concerned about the engine blowing up at 15,000 miles than a "up to 8%" increase in fuel economy. That being said, I hope it's something the supercharger manufacturers consider. It'd be pretty awesome if they could boost it, retain AFM, and perhaps even increase highway mpg.

We already know that the 6.2 can be pumped to 550 eng hp with pretty much the same transmission in the CTS-V and pass standards for GM's 100,000 mile powertrain warranty. Certainly the 6.0 should be as capable when pushed.
It's that "pretty much" that worries me. It could mean that it has a few stronger components that an S/C G8 would bend in a short time.

I am sure the supercharged 6.2 will be built with forged pistons and rods. GM will use hypereutectic pistons in any non-boosted application. Therefore you take your chances when you put a supercharger on such a motor. The LT1's were pretty bad. 7 psi of boost and you were asking for it. The LS1's and LS2's have been better. If the L76 is the same, you should be okay with a modest boost supercharger. You must avoid detonation at all costs, and not get greedy with the boost. I think 500/500 might be attainable fairly safely. And by that I mean you might expect 50K miles or more out of the motor and trans..... It also depends on your driving style, how much you thrash it.

I can see myself buying one of these and getting a supercharger kit. I'll probably wait for the 09 with the stick though. I am curious if Magnuson/Eaton will come out with a roots type blower for it. The motor looks pretty close to the windshield cowl....

Sorry I have no tech details on this, just found the pics and thought I'd share. It a Holden VE SSV (despite the Chev badge).
So is that a twin-screw supercharger? Do you know whether or not they took the front end/grille off of a Lumina SS for that bowtie?

From what I understand, my brother's '02 Grand Prix GTP has a clutch on the supercharger so that it's inactive unless the throttle is open enough that it decides to turn on. Does the aftermarket world offer such part-time superchargers? Do I misunderstand it?

That looks like the Harrop HH112 or HH122 (http://www.harrop.com.au/products/superchargers.html); technically a modified roots, not a twin screw.

That looks like the Harrop HH112 or HH122 (http://www.harrop.com.au/products/superchargers.html); technically a modified roots, not a twin screw.
Thanks

Is it correct that Roots superchargers have better low-end torque, are less efficient at high rpms, have lower peak PSI, and would probably be easier on the engine than a twin-screw? at least generally speaking?

The bowtie and chrome backing is from a Middle East Lumina. You can buy them from www.jhp.com.au and they slot straight into the Commodore grille. However for you guys, the whole front clip would need to be replaced.

So is that a twin-screw supercharger? Do you know whether or not they took the front end/grille off of a Lumina SS for that bowtie?

From what I understand, my brother's '02 Grand Prix GTP has a clutch on the supercharger so that it's inactive unless the throttle is open enough that it decides to turn on. Does the aftermarket world offer such part-time superchargers? Do I misunderstand it?

That is not exactly correct. His GTP has a bypass valve. At part throttle, the bypass valve is open so that the supercharger causes very little parasitic drag. Somewhat of the same effect of a clutch (reduces supercharger drag when not needed), but a very different mechanism.

Chip

That is not exactly correct. His GTP has a bypass valve. At part throttle, the bypass valve is open so that the supercharger causes very little parasitic drag. Somewhat of the same effect of a clutch (reduces supercharger drag when not needed), but a very different mechanism.

Chip

Ah, thanks. We weren't sure if the ECU controlled it or it was pressure sensitive.

Do most superchargers have said clutch? Are they pressure/tension sensitive in some fashion?

Why don't you guys wait until MY 2 to see if a GXP comes out and get the extra HP with the warranty intact? :)

Why don't you guys wait until MY 2 to see if a GXP comes out and get the extra HP with the warranty intact? :)

Reason #1 - that option is certain to cost at least 150% of what it would cost to install the supercharger yourself.

Why don't you guys wait until MY 2 to see if a GXP comes out and get the extra HP with the warranty intact? :)
I doubt I'll get a MY08, at least before MY09 is out. I won't have the means until then. However, I might get a MY08 if I can get a better deal on it, the GXP isn't anything special, and MY09 doesn't have any significantly flashier features.

Reason #1 - that option is certain to cost at least 150% of what it would cost to install the supercharger yourself.
I would probably have a speed shop install/config my supercharger, so it might actually cost more for me, but something in me doubts that the GXP will be ~500hp. It might be worth the $$ to get a significantly stronger n/a engine with a few more hp that will do better with superchargers (i. e. not blow up as easy), but if the GXP is just an L76 supercharged to like 450hp.. it would be a hard decision between a GXP + warranty and a GT + supercharger - warranty.

If the GXP is around 500hp at crank for $37k loaded, I'd do that. Otherwise I'd try to get a loaded GT, supercharger, and 500hp+ for under $40k.

I doubt I'll get a MY08, at least before MY09 is out. I won't have the means until then. However, I might get a MY08 if I can get a better deal on it, the GXP isn't anything special, and MY09 doesn't have any significantly flashier features.


I would probably have a speed shop install/config my supercharger, so it might actually cost more for me, but something in me doubts that the GXP will be ~500hp. It might be worth the $$ to get a significantly stronger n/a engine with a few more hp that will do better with superchargers (i. e. not blow up as easy), but if the GXP is just an L76 supercharged to like 450hp.. it would be a hard decision between a GXP + warranty and a GT + supercharger - warranty.

If the GXP is around 500hp at crank for $37k loaded, I'd do that. Otherwise I'd try to get a loaded GT, supercharger, and 500hp+ for under $40k.

My money is on the LS3 for the GXP. Its a nice bump over the L76 and offers a slight advantage over the Charger SRT-8.

The latest issue of Motor Magazine in Australia says that Walkinshaw performance are producing a supercharged version of the HSV Maloo Ute with output of 560hp! Price is a massive $98,000 AUhttp://www.walkinshawperformance.com.au

My money is on the LS3 for the GXP. Its a nice bump over the L76 and offers a slight advantage over the Charger SRT-8.

I don't know. Cadillac just killed their new V-8 because of CAFE. I certainly hope the same doesn't hold true for other V-8 engines in development. Namely the G8 GXP.

I don't know. Cadillac just killed their new V-8 because of CAFE. I certainly hope the same doesn't hold true for other V-8 engines in development. Namely the G8 GXP.

If the GXP gets the LS3, that is not in development. It is already in production. Everything points to that combo right now.

Chip

I am thinking 5 psi on a LS76 from a maggie will suit me fine. I would love the 6 speed manual though. But 40K is a little steep.

I am thinking 5 psi on a LS76 from a maggie will suit me fine. I would love the 6 speed manual though. But 40K is a little steep.
If Whipple puts one out at a decent cost, I think I'd go 7-9PSI on a twin-screw. They have kits for LS1/2/6s, so I'd wager they'll at least support the LS3, probably the L76. I tried to use the S/Cd power predictor on Eaton's website, but I didn't like the results (possibly due to user error and/or lacking certain specs).

Yeah, 40k is kinda steep when you could get more power from $33k + $6-8k. Although, I do wonder how often I would have used the warranty, if I were to void it.

Ah, thanks. We weren't sure if the ECU controlled it or it was pressure sensitive.

Do most superchargers have said clutch? Are they pressure/tension sensitive in some fashion?

Most of the later model OEM superchargers use a bypass valve. The only one that I remember that used a clutch (other than MadMax movie) was the old supercharged Toyota MR2.

The bypass valve is controlled by the ECU and it is based on several factors including throttle position.

Chip

If the GXP gets the LS3, that is not in development. It is already in production. Everything points to that combo right now.

Chip

The L76 presents its own challenges with AFM. The LS3 should prove to be easier to supercharge since it is already installed in the C6. If you want to supercharge getting the GXP will probably be easier.

The VE uses the L92 which doesn't have AFM which makes it easier to supercharge.

The problem is that rumor says the GXP will be high $3*k, low 40s. For that amount of money, you could get a loaded GT and a supercharger, whereas a loaded GXP and a supercharger would be approaching $50k.

I would imagine that the GXP would be better for almost every mod since the engine will probably have better aftermarket support.. but if the rumors are true, it's not going to be worth the extra money for those like me that want the most punch for the least money and don't necessarily care for the other upgrades the GXP will get (and might even dislike the upgrades, such as if the suspension is too stiff and the styling is too aggressive).

Anyone know what the compression is on the L76 and LS3?

being very familiar with blowers and pullies, it all depends.

You'll have to scan and tune the blower untill you're not geting any knock retard (kr). Also, your added power is never a "good" thing for your tranny.

If you can't add a blower w/o KR, you'll probably need supporting mods like headers, an intercooler and/or a cam.

I'd love to put a blower on mine as well. I just hope it's the ls3 gxp version :yumyum:

The problem is that rumor says the GXP will be high $3*k, low 40s. For that amount of money, you could get a loaded GT and a supercharger, whereas a loaded GXP and a supercharger would be approaching $50k.

I would imagine that the GXP would be better for almost every mod since the engine will probably have better aftermarket support.. but if the rumors are true, it's not going to be worth the extra money for those like me that want the most punch for the least money and don't necessarily care for the other upgrades the GXP will get (and might even dislike the upgrades, such as if the suspension is too stiff and the styling is too aggressive).

I hear you on this. But I think the suspension will be fine, plus you're getting bigger brakes. Sure all these can be added to a gt. But, the big difference might be the engine itself, and like you mentioned the added aftermarket support.

Anyone know what the compression is on the L76 and LS3?


L76 is 10.4:1 and the LS3 is 10.7:1.

The LS2 is 10.9:1, and many of them are FI... so the L76 and LS3 should be fine.

The transmission should be good for it. Since its a new design I would think it could handle 500hp.

I was reading up on the VXR8 S/C after I saw a youtube video (http://www.youtube.com/watch?v=7QHPlPDnb_8) of it.

What I find interesting is that wikipedia (http://en.wikipedia.org/wiki/Vauxhall_VXR8) says "The most dramatic warranted upgrade is the £7,000 supercharger kit, which ups power to 530 hp (395 kW).".

Do you think the G8 (either GT or GXP) will have such an option available for a dealer to install and warrant?

^^ I highly doubt it. I've never seen a blower offered as an option. That kind of performance increase warrants a whole new model of g8.

10 bucks says there will be plenty of companies out there selling their g8 upgrade kits with their own name. i.e SLP.

I've never seen a blower offered as an option.
I hadn't heard about it either but it's an option for the Clubsport R8 in Austrailia and the VXR8 in England, so hopefully it'll continue for the G8 (at least GXP) in the US. I know that TRD offers a centrifugal supercharger for the Scion tC and it remains under warranty (although it's pretty mild--160hp to 200--and costs $3500).

No worries Magnacharger has you covered. Typical gains with a Magnacharger are 100-120 HP at the rear wheels depending on the type of dyno used. Typical drivetrain percentage losses are 12-15% for manual transmissions and approximately 18% for automatics. Supercharging an engine should not affect the lifespan of an engine if proper maintenence, reasonable boost levels, and tuning are in place. The 6l80 should hold up to a supercharged application as this is a very stout and underrated transmission. If you are concerned with your transmissions lifespan and capabilities it is always better to upgrade before problems occur rather than after. Magnacharger is fully aware of the G8 GT's(L76) and G8 GXP's(LS3) presence in the marketplace and is already developing a kit for the G8. Rest assured that each Magnacharger kit will be covered by a warranty and once testing and calibration are complete, an additional cost powertrain warranty should be available. Magnacharger is working hard to be able to maintain the AFM capabilities and increase MPG, all while being boosted with stock-like driveability and reliability, the Magncharger way. I will keep you guys updated as new information becomes available. If you have any more questions or concerns feel free to post them or PM me. I am always glad to help out. Hope this helps you out.

No worries Magnacharger has you covered. Typical gains with a Magnacharger are 100-120 HP at the rear wheels depending on the type of dyno used. Typical drivetrain percentage losses are 12-15% for manual transmissions and approximately 18% for automatics. Supercharging an engine should not affect the lifespan of an engine if proper maintenence, reasonable boost levels, and tuning are in place. The 6l80 should hold up to a supercharged application as this is a very stout and underrated transmission. If you are concerned with your transmissions lifespan and capabilities it is always better to upgrade before problems occur rather than after. Magnacharger is fully aware of the G8 GT's(L76) and G8 GXP's(LS3) presence in the marketplace and is already developing a kit for the G8. Rest assured that each Magnacharger kit will be covered by a warranty and once testing and calibration are complete, an additional cost powertrain warranty should be available. Magnacharger is working hard to be able to maintain the AFM capabilities and increase MPG, all while being boosted with stock-like driveability and reliability, the Magncharger way. I will keep you guys updated as new information becomes available. If you have any more questions or concerns feel free to post them or PM me. I am always glad to help out. Hope this helps you out.

Old technology (MP) or new technology (TVS)?

Old technology (MP) or new technology (TVS)?

It is still to be determined depending on how the truck/SUV and Corvette kits work out... I am pushing for the 6th Generation TVS units, but nothing is official. I will keep you guys updated with the latest information. As soon as I know you will know. Hope this helps you out.

No worries Magnacharger has you covered. Typical gains with a Magnacharger are 100-120 HP at the rear wheels depending on the type of dyno used. Typical drivetrain percentage losses are 12-15% for manual transmissions and approximately 18% for automatics. Supercharging an engine should not affect the lifespan of an engine if proper maintenence, reasonable boost levels, and tuning are in place. The 6l80 should hold up to a supercharged application as this is a very stout and underrated transmission. If you are concerned with your transmissions lifespan and capabilities it is always better to upgrade before problems occur rather than after. Magnacharger is fully aware of the G8 GT's(L76) and G8 GXP's(LS3) presence in the marketplace and is already developing a kit for the G8. Rest assured that each Magnacharger kit will be covered by a warranty and once testing and calibration are complete, an additional cost powertrain warranty should be available. Magnacharger is working hard to be able to maintain the AFM capabilities and increase MPG, all while being boosted with stock-like driveability and reliability, the Magncharger way. I will keep you guys updated as new information becomes available. If you have any more questions or concerns feel free to post them or PM me. I am always glad to help out. Hope this helps you out.

Significant, relatively simple, warranted power boosters are what I'll be looking for. Hopefully I'll be satisfied with a ~7.5psi boost enough that I won't even consider any other mod ('cept for electric cutouts, of course).

If my calculation is correct, figuring a 120rwhp increase, the LS3 should be around 575bhp, right? with 100rw on L76, 480?

Some rough calculations:

L76 (G8 GT)
361 HP - 15% drivetrain loss = 307 RWHP
307 RWHP + ~120 RWHP (Maggie) = 427 RWHP

LS3 (G8 GXP)
430 HP - 15% drivetrain loss = 365 RWHP
365 RWHP + ~120 RWHP (Maggie) = 485 RWHP

Some rough calculations:

L76 (G8 GT)
361 HP - 15% drivetrain loss = 307 RWHP
307 RWHP + ~120 RWHP (Maggie) = 427 RWHP

LS3 (G8 GXP)
430 HP - 15% drivetrain loss = 365 RWHP
365 RWHP + ~120 RWHP (Maggie) = 485 RWHP
looks good to me, though I was trying to figure out how 120rwhp would effect bhp, which is the number I'd broadcast to anybody that would listen. sure, 485rwhp sounds good but 575bhp sounds better :shiner:

damn. to think i was setting a 250+ hp goal for my next car.

575 BHP - 15% drivetrain loss = ~488 RWHP :judge:

Yes, but I'll be using an auto. 430bhp - 18% = 352rwhp + 120 = 472rwhp = 576bhp :p

and when you tell someone you have 576hp in your car, that's more than the 505hp Corvette, whereas if you tell them rwhp, they might be like "oh.. so almost as much as my friend's Corvette". If they don't know much about cars and you tell them that the Corvette only really has 430rwhp, they might be confused and think you're trying to deceive them.. but the morale of the story is that bigger numbers are more impressive. :thumbsup:

The L76 presents its own challenges with AFM. The LS3 should prove to be easier to supercharge since it is already installed in the C6. If you want to supercharge getting the GXP will probably be easier.

The VE uses the L92 which doesn't have AFM which makes it easier to supercharge.


If you think about how both AFM and say a roots blower like a maggie operate, then mechanically it shouldnt be a problem.

The AFM kicks in at low rpm part throttle cruising. A supercharger at this point is likely not putting out any boost to give the now V4 any problems.

As soon as you tip into the throttle AFM shuts off and boost kicks in.

Now tune wise, it might be a little more complicated, but again mechanically in theory it should be just fine.

If you think about how both AFM and say a roots blower like a maggie operate, then mechanically it shouldnt be a problem.

The AFM kicks in at low rpm part throttle cruising. A supercharger at this point is likely not putting out any boost to give the now V4 any problems.

As soon as you tip into the throttle AFM shuts off and boost kicks in.

Now tune wise, it might be a little more complicated, but again mechanically in theory it should be just fine.

As of 3-17-08 it has come to my attention that the Active Fuel Management system will not be able to be retained with the addition of a Magnacharger as originally thought. From what I could discern AFM could have and would have been retained but it is now, official that it cannot be retained. When I spoke to my guys at Magnuson several weeks back, AFM retainment seemed possible but was a preconceived notion. Hope this helps you out.

Some rough calculations:

L76 (G8 GT)
361 HP - 15% drivetrain loss = 307 RWHP
307 RWHP + ~120 RWHP (Maggie) = 427 RWHP

LS3 (G8 GXP)
430 HP - 15% drivetrain loss = 365 RWHP
365 RWHP + ~120 RWHP (Maggie) = 485 RWHP

So somehow I'll still need to get 15rwhp to get to my goal :gr_jest:

Well the LS3 in the vette, seems to be rated 20 -25 hp low for insurance reasons. Cause will just a tune 400rwhp can be had. So hopefully the LS3 in the GXP wil be the same as the vette.

According to Fastlanedaily.com an insider at GM stated that the GXP LS3 will be detuned and it should have 30-40 ponies more than the G8 GT. Lets hope the "insider" is just talking out his/her ass.
Here is the clip http://www.dragtimes.com/video-viewer.php?v=jADu4BghNg8

So somehow I'll still need to get 15rwhp to get to my goal :gr_jest:

remember the stated rear wheel horsepower gains apply to an otherwise bone stock car with the only additions being the base Magnacharger and Maggie tune - SO if you throw full exhaust and a custom tune into the equation you will find more than your 15rwhp needed to reach your goal. :thumbsup:

This is interesting , You guys seem to be big fans of super chargers vs turbos is this because the Ls3 or l76 will work more effectively with the charger vs turbo, I am new so don't bash my question if it doesnt belong just looking for a straight answer.
Thanks !!!

One of the reasons is that within a year there will be a number of bolt-on superchargers that will make adding 100-150 RWHP a piece of cake and pretty much risk free. Companies like Magnuson Products in California sell complete kits with everything including tuning, so the install is turn-key. Good luck finding that in a turbo.

This is interesting , You guys seem to be big fans of super chargers vs turbos is this because the Ls3 or l76 will work more effectively with the charger vs turbo, I am new so don't bash my question if it doesnt belong just looking for a straight answer.
Thanks !!!

No bashing needed. It's a good question, and we all learned from asking similar questions.

It's really a matter of prefrence. Turbos will net you bigger gains, but take time to spool. I think V8s go better with blowers, and v4s and v6s benefit more from turbos.

But the main reason as stated above, is the reliablility and ease of use. There's a lot more work, and lot more to go wrong with a turbo setup.

If I can buy a kit with everything I need to put a supercharger on my car, I'll do it.

I don't mean to sidetrack the thread to much...but how would a supercharger improve the MPG. I have seen several manufacturers make this claim. Generally accessories put an additonal load on the engine reducing the MPG. The only way I can think through an improvement is that off boost it is leaning out the AF somehow.

Thanks

This is interesting , You guys seem to be big fans of super chargers vs turbos is this because the Ls3 or l76 will work more effectively with the charger vs turbo, I am new so don't bash my question if it doesnt belong just looking for a straight answer.
Thanks !!!
low-end torque and consistent boost levels

From what I understand, you'll get a higher boost level with turbos but the higher the boost level, the harder it is on the engine, so you should expect things to go wrong more quickly. Superchargers will have a better ability to stay within a reasonable boost level while giving you an instant response at lower engine speeds.

If I was going all-out on a track car, I'd probably want to go with a turbo for more peak power because I'd be staying in the higher RPMs and would expect to fix breaking engine components frequently.
For a daily driver, though, I'm going with a supercharger so I can get off the line quick and have a reasonably high peak power output without ripping my engine apart.

low-end torque and consistent boost levels

From what I understand, you'll get a higher boost level with turbos but the higher the boost level, the harder it is on the engine, so you should expect things to go wrong more quickly. Superchargers will have a better ability to stay within a reasonable boost level while giving you an instant response at lower engine speeds.


This would be true of large and/or old fashioned turbos, more moderately sized, modern turbos would spool up faster if you don't need the abusively high boost. Check out the torque curves on the LNF and the BMW’s turbo I6 in the 335 & 135. They hit peak torque by 2k RPM and hold it forever. I don’t expect as much from an engine with static timing, but do think it would do fine off the line.

I’d say the only really strong arguments for a supercharger over turbos are aesthetics, ease of installation and perhaps price. I do know that there is at least one outfit in Oz selling a DIY turbo kit for the Commie, so the installation needn’t be that much harder than a supercharger.

I am curious to see how efficient a supercharger will be with the high compression of the L76. I know the gains would be greater if one could lower the comp to 9:1 of course ideal comp would be 8:1.

I am curious to see how efficient a supercharger will be with the high compression of the L76. I know the gains would be greater if one could lower the comp to 9:1 of course ideal comp would be 8:1.

The Magnacharger is very efficient between 10.1:1 and 10.9:1. It is a common misconception that boosted applications require a lower compression ratios to be efficient and make power, of course this is directly affected by how exactly how much boost is in question and applied to the setup. If you plan on running more than 12-14lbs. of boost then you will benefit from a lower compression ratio and will most certainly need forged pistons and rods at this level before too long. If you plan on staying below this boost level, then maintaining or staying close to the stock compression ratio is the best setup and will yield the most gains and under the curve power. This has been proven several times on the C5 and C6 Corvettes. Feel free to do a search on corvetteforum.com for more information, dyno charts, and testimonies. Hope this helps you out.

The Magnacharger is very efficient between 10.1:1 and 10.9:1. It is a common misconception that boosted applications require a lower compression ratios to be efficient and make power, of course this is directly affected by how exactly how much boost is in question and applied to the setup. If you plan on running more than 12-14lbs. of boost then you will benefit from a lower compression ratio and will most certainly need forged pistons and rods at this level before too long. If you plan on staying below this boost level, then maintaining or staying close to the stock compression ratio is the best setup and will yield the most gains and under the curve power. This has been proven several times on the C5 and C6 Corvettes. Feel free to do a search on corvetteforum.com for more information, dyno charts, and testimonies. Hope this helps you out.

Enough of the blah blah blah, where are the kits? :driving:

And remember, it's TVS pal, no high-helix 'whatever', we want 6th gen only! :judge:

I have taken a 1000 CC yamaha Genesis engine apart all the way down to the crank cases and put it back together timming and everything fired right up and I have also replaced engines/head gaskets and transmissions in other American made vehicles but mostley FWD cars... Do you think I would be able to install the magna charger with this experience ???

You say risk free thats kind of what I want if I buy a turbo and blow it up I better have powertrain insurrance so your saying magna will offer that warranty seperatley you suspect ???? I want this thing to last a while before a rebuild you know im guessing the magna supercharger will be about 5 -7 k ??? vs costly turbos


Terrance

Let me put it to you this way - all I had ever done before was change my oil, and with an experienced person, installed the blower. I got so much confidence from this that I installed a cam in my LSx motor. So yeah, I think you're okay. :driving:

Regarding the warranty, yep, as long as you don't modify anything on your vehicle other than the cat-back (i.e. no cam, intake, or modified tune), you can get the additional powertrain warranty for $200.

One bad thing about the Magnacharger - you will have to change the oil at 100,000 miles. :D

You also have to have the charger installed by a magnacharger certified installer. So you're 2 questions lead me to believe, you (and I) will have decisions to make...

ps, the hardest part will be the intercooler.

For claims on the powertrain insurance I know they would require certified install.

Enough of the blah blah blah, where are the kits?
And remember, it's TVS pal, no high-helix 'whatever', we want 6th gen only!

I will do my best - I am here for you guys - So when I know you will know. :thumbsup:

I have taken a 1000 CC yamaha Genesis engine apart all the way down to the crank cases and put it back together timming and everything fired right up and I have also replaced engines/head gaskets and transmissions in other American made vehicles but mostley FWD cars... Do you think I would be able to install the magna charger with this experience ???

You say risk free thats kind of what I want if I buy a turbo and blow it up I better have powertrain insurrance so your saying magna will offer that warranty seperatley you suspect ???? I want this thing to last a while before a rebuild you know im guessing the magna supercharger will be about 5 -7 k ??? vs costly turbos

You will have no problem installing the Magnacharger system and if you have any questions there are plenty of us here that would be glad to help you out. Magnacharger will offer an additonal cost extended powertrain warranty on the base Magnacharger kit. In order be eligible for the additional cost powertrain warranty the user will have to have the Maggie installed by a certified installer and the only additional modification allowed is a catback exhaust system; the Magnacharger will also have to run the out of the box boost levels and utilize the provided Magnacharger tune. Also remember that all of the Magnacharger kits that I sell are covered by a 3yr/36k mile warranty on the blower kits themselves.

What do you guys mean I can't install the charger my self and get the warranty provided ?? Who is the warranty from then Magna or Pontiac ?
Certified Installer ???? I want to know the ins and outs of my machine and letting some one else touch her will be a little hard for me to do.

The additional cost powertrain warranty is covered by Magnuson. Each kit will come with a warranty card that has to be filled out and sent back in to Magnuson. You might have a certified installer "supervise" your installation. ;)

So what you don't know is price :) How bout you give us the speculated price ????

Price should be comparable to the current kits pricing... :angel:

I didn't mean to say the intercooler would be hard, just the most difficult. There's tubing, pump, mounting your fmhe (which usually requires removing your bumper), getting a good seal etc.

Putting a blower on is pretty easy (given your experience). You replace your lim, make all the right connections and you're good to go.

But I agree with you man, I like to know the ins and outs of my machine, and having someone else do the work is troublesome. It's not their car, and they're not going to pay as much attention to detail that I would.

I would guess we're going to pay around 6k for the kit. And possibly more if we need a hood.

Anyone in SOCAL want to drop their car off to Magnuson for a supercharger install? If you do e-mail me for the details. brian@magnacharger.com

Anyone in SOCAL want to drop their car off to Magnuson for a supercharger install? If you do e-mail me for the details. brian@magnacharger.com

I'll drive to cali with my gxp when it comes out :)

Will the Magnuson supercharger kit retain AFM?

Will the Magnuson supercharger kit retain AFM?

As of 3-17-08 it has come to my attention that the Active Fuel Management system will not be able to be retained with the addition of a Magnacharger as originally thought. From what I could discern AFM could have and would have been retained but it is now, official that it cannot be retained. When I spoke to my guys at Magnuson several weeks back, AFM retainment seemed possible but was a preconceived notion. Hope this helps you out.

Yes...the addition of a Magnacharger will not affect the Active Fuel Management system. The Maggie has an internal bypass valve and the valve is open when vacuum is present and a vacuum is present when the engine is only running on four cylinders. When AFM is active the Maggie's bypass valve will open and most of the air will bypass the rotor group but still allow airflow into the lower manifold as if no blower were present. However, when you "step on it", the fuel and spark will fire on all cylinders, the bypass valve on the Maggie will close, and you would have instant boost on all cylinders. Leaving you pressed back in the seat with a smile on your face knowing that you have loads of horsepower and torque but still maintain your gas mileage, if not improve it. Hope this helps you out.

SICK!!!!! Power while still keeping good MPG NICE JOB! :patriot:

SICK!!!!! Power while still keeping good MPG NICE JOB! :patriot:

That is only if you can resist listening to the whine at every stop sign.

It is official Magnuson has obtained a G8 and will be adapting and producing the TVS 1900 kit for the G8 GT L76...

http://www.g8board.com/forums/showthread.php?t=1337&highlight=maggie

Unfortunately, testing on the trucks has revealed that the AFM will not be able to be retained as previously thought... :(

Before i did the cam & exhaust my supercharged gts was great on fuel . Then i wanted more power & now i use a **** load. But its fun:aus_flag::aus_flag::gears:

hmm, no afm huh? May change things. Might not :)

Hi Guys,
Here at Yella Terra we will be developing a range of G8 twin screw intercooled/non intercooled system kits based on the latest Whipple 2.3/2.9/3.3 screws.

Launch is targeted later this year

Hi Guys,
Here at Yella Terra we will be developing a range of G8 twin screw intercooled/non intercooled system kits based on the latest Whipple 2.3/2.9/3.3 screws.

Launch is targeted later this year

Would you mind providing links to your present systems showing your capabilities?

Thanks. :driving:

Hi Guys,
Here at Yella Terra we will be developing a range of G8 twin screw intercooled/non intercooled system kits based on the latest Whipple 2.3/2.9/3.3 screws.

Launch is targeted later this year

Cool, I didn't know you did blowers. I recognize your company for the rockers you made for the grandprix.

The Harrop TVS-rotor'ed HTV2300 for G8 is available, and several installs have been completed this year.
Ideal for "big" engines, and our HH112 & HH122 are available for the more stock vehicles.
:)

What gains have you seen from your kit ?? And how does it hold up against the Magnacharger ? What justifies the price difference between the two blowers ?

What gains have you seen from your kit ?? And how does it hold up against the Magnacharger ? What justifies the price difference between the two blowers ?

The HSV VE (Aussie version of the G8-GTP) typically runs 550-650 rwhp on a DynoDynamics. I am told that the DynoDynamics typically read quite a bit lower than the US Mustang(?) dyno.
I have never seen a TVS-based Magnacharger so I cannot offer a comparative comment. Do Magnacharger have a TVS2300 for the G8?
Price difference ...? Without knowing what comes in the Magnacharger kit, and the results, and the quality ... I would only be guessing. I can tell you that our HTV2300 comes with everything including CAI and 8PK pulley kit.

I can tell you that our HTV2300 comes with everything including CAI and 8PK pulley kit.

EO# for the smog cops? Hand Held Tuner for the Computer? 3/36 Mile warranty on parts?

I hope to get a G8 GT and supercharge it. I would hope to get at least 500lb-ft at the wheels. With a 10% powertrain loss, this means that the torque would go up to about 140%. I've always thought/heard that supercharged engines pump about 150% of the power of their naturally aspirated counterparts, with some superchargers even doubling the power. Do you have any idea/ball-park-guesses as to how much power a moderate supercharger would add?

BTW, what is the typical percentage of power lost in drivetrains?

How do superchargers effect the lifespan of an engine? A Toyota mech always said "Drive it like ya stole it, but keep it maintained". If a stock G8 GT lasted, say, 15 years before encountering repairs that cost more than it was worth, how long would that be for a supercharged G8?

What do you think the possibility is of Pontiac (or some division of GM) offering a supercharger upgrade to the G8 that will keep it under warranty?

Harrop has this supercharger for about $10k. http://www.harrop.com.au/root_folder/superchargers/stealth_hh122-ve.html
Is this a relatively good deal for a supercharger (kit) or could you find a decent one for around $5k?

The 6L80 is rated up to 430lb-ft (some say "up to 520"). If you put, say, near 600lb-ft of torque on it, would it rip it to pieces? or is that just the max that GM would allow for a vehicle with it so that they can be sure it lasts through the warranty?

If you knew that supercharging your engine could potentially destroy your transmission, would you replace the transmission as soon as you supercharged it or would you wait until it was dying and THEN replace it (or perhaps rebuilt stronger)?

There is a supercharged version of this car called the VXR8 Bathurst it isn't available in north america yet but it has 560hp. It is an amazing car and if you want to check it out look it up on youtube.

Supercharging a stock bottom end isnt smart. but if you must, I think that the 6.0 liter can pump out 480-500 HP, NOT WHP and not die on you.

500 whp is forged motor territory. Sure, you CAN do it with your motor... and it'll die a month later.

Now may I ask WHAT it is that you want to race that 425 whp wont get? an F-15 jet fighter maybe... RS6.... not many cars.

A bad tune will kill your car no matter what you have in the motor.

A word to the wise... building a proper NA monster is expensive. My charger is an RT, and so turning her onto a 550 hp car was hell.

If I could go back in time, Id have bought an SRT8, added heads/cam, and a SCer. So If you have the chance, it would be cheaper to get a GXP, add heads,cam, boltons, and a supercharger, than it would be to basically buy and tune a new motor.

Your main questions I guess should be HOW MUCH do you have to burn and WHICH avenue is more fun for you.

I hope to get a G8 GT and supercharge it. I would hope to get at least 500lb-ft at the wheels. With a 10% powertrain loss, this means that the torque would go up to about 140%. I've always thought/heard that supercharged engines pump about 150% of the power of their naturally aspirated counterparts, with some superchargers even doubling the power. Do you have any idea/ball-park-guesses as to how much power a moderate supercharger would add?

BTW, what is the typical percentage of power lost in drivetrains?

How do superchargers effect the lifespan of an engine? A Toyota mech always said "Drive it like ya stole it, but keep it maintained". If a stock G8 GT lasted, say, 15 years before encountering repairs that cost more than it was worth, how long would that be for a supercharged G8?

What do you think the possibility is of Pontiac (or some division of GM) offering a supercharger upgrade to the G8 that will keep it under warranty?

Harrop has this supercharger for about $10k. http://www.harrop.com.au/root_folder/superchargers/stealth_hh122-ve.html
Is this a relatively good deal for a supercharger (kit) or could you find a decent one for around $5k?

The 6L80 is rated up to 430lb-ft (some say "up to 520"). If you put, say, near 600lb-ft of torque on it, would it rip it to pieces? or is that just the max that GM would allow for a vehicle with it so that they can be sure it lasts through the warranty?

If you knew that supercharging your engine could potentially destroy your transmission, would you replace the transmission as soon as you supercharged it or would you wait until it was dying and THEN replace it (or perhaps rebuilt stronger)?

I have a Procharger Supercharger on my g8 gt. Only other mods are taylor 10.4mm wires, ngk 1 step colder plugs, and no cats and no mufflers/res's

Its deep, very deep into the 400's on a mustang dyno. A/F is right, royal purple oil changes every 3k miles. And change the supercharger oil every 2-3, depending how hard I am on the car.

For me, I would have rather have gone stealth cam/head swap. Because I highly doubt many techs can look at heads and say oh snap you dont have stock cam/heads.

31k miles, and its still pulling hard, tons of tire spin, wheel hop....ect....

suspension is to come soon, pedders street II and pretty much all BMR items too.

Then 20 inch wheels, and rotors and cap's and new pads.

Supercharging a stock bottom end isnt smart. but if you must, I think that the 6.0 liter can pump out 480-500 HP, NOT WHP and not die on you.

500 whp is forged motor territory. Sure, you CAN do it with your motor... and it'll die a month later.

.

My friend, click this link please.

http://www.youtube.com/watch?v=1trhsQftOMg

I have a stock bottom end and stock cam. I have put on about 8000 miles on my setup and NO issues. so to say a stock bottom end cant handle 500 whp wont last is wrong. I have about 7 or 8 dyno pulls and 9 passes down the 1/4.

8000 miles ISNT lasting. your car will NOT last 3 years.

Talk to me when you've put 60K on your stock Sced motor doing 500+ whp... IF it happens.

My buddys ported, twin scroll twin t-67 turbod saturn sky convertable with LS2 swap made 809whp on stock bottom end, only change to motor was a mild cam. It lasted the whole summer too, and then he sold it for a built motor and made 1150 whp;)

8000 miles ISNT lasting. your car will NOT last 3 years.

Talk to me when you've put 60K on your stock Sced motor doing 500+ whp... IF it happens.

my g8 has 31k miles. Got the procharger around 21k. About 3 track runs every Sunday for about 2 months. Street racing from dig's and rolls. Not a single issue, cept for the silly TSB's and recall's.

Change the oil every 3k miles, procharger oil around there.....and I am golden for quite sometime, maybe have to do an engine rebuild around 100k. The guy who installed my procharger, has a procharged chevy pick up trunk, 245k miles, had the procharger on it since mile 10.


Come tax season I will eaither get 10lb and meth, or foraged piston/connecting rods. Unsure yet.

But, I can assure you......these engines are not dying anytime soon.

my g8 has 31k miles. Got the procharger around 21k. About 3 track runs every Sunday for about 2 months. Street racing from dig's and rolls. Not a single issue, cept for the silly TSB's and recall's.

Change the oil every 3k miles, procharger oil around there.....and I am golden for quite sometime, maybe have to do an engine rebuild around 100k. The guy who installed my procharger, has a procharged chevy pick up trunk, 245k miles, had the procharger on it since mile 10.


Come tax season I will eaither get 10lb and meth, or foraged piston/connecting rods. Unsure yet.

But, I can assure you......these engines are not dying anytime soon.


:iagree: