I have the v8 but would still be interested in seeing more on this.

 

Cost?$$$$$$$$$$$$$$$$$$$$$$$$

 

For something similiar to what I have, drive-in/out, you'll need around $15K... I'll describe my build below a bit further in response to Chief. Keep in mind this includes upgrading the entire driveline also, so it's not simply just upgrading the engine and power output...

I know a lot of good things have been done with this engine down under. Our biggest hold back here in the states has always been the ECU and programing. But now, thanks to MACE and one of our own, it seems that that barrier has fallen by the wayside.

So things are looking up. Any info you can provide the group on the setup I'm sure will be welcome with open arms. Turbo, intake, boost, etc.

Thanks for posting.

What you've described is similiar to the obtacles we faced originally too. Once someone cracks that programming, particularly if they can use the stock ECU, it opens up a lot of doors... I've opted for an aftermarket ECU in mine to make things easier and future plans for the car will require it anyway....

As for my build, I'll give you a quick general rundown on what's in her at the moment...

Engine - stock internals, Pro Flow Fab turbo kit (Garrett GT3582R, external wastegate, intercooler, custom exhaust manifolds, K&N air filter)
ECU - ViPec 388
Transmission - Rebuilt stock auto, Stage 3 shift kit, 5500rpm converter
Differential - LSD with 3.9 diff gears
Fuel system - 3000hp FPR, 2000cc injectors, twin 044 fuel pumps all tuned to suit E85 (be aware this is overkill for the power we're achieving at the moment but is all in due to future plans for the car)

This saw us make 337rwkw with 12 psi boost. I don't have the dynograph on me but this was made at approx 6200rpm producing 1150nm torque or so.

Thank you for posting this up,good to hear you say the word TOUGH about this motor.From what I hear the timing chains stretch on these motors,is this true?If so is there a better chains out there? I have a UDP that im very hesitant to install,any thoughts on the pulley? Thanks,

Dan

I say these things are tough because of what power/boost we've managed to put her through so far without the need to upgrade any of the engines internals. To be honest its lasted longer than I thought it would considering how hard we've been pushing her and for so long now too...

As for the timing chains, all I can say is I personally haven't had any issues and therefore haven't looked into finding/making a better one. I have heard of incidents where timing chains have become loose due to what appears to be excessive wear... I'd say just make sure you keep your engine serviced and I would imagine you'll notice a significant change or increase in noise from the front of the engine before it actually goes altogether and had the potential to do real damage.

 

I know a lot of good things have been done with this engine down under. Our biggest hold back here in the states has always been the ECU and programing. But now, thanks to MACE and one of our own, it seems that that barrier has fallen by the wayside.

So things are looking up. Any info you can provide the group on the setup I'm sure will be welcome with open arms. Turbo, intake, boost, etc.

Thanks for posting.

 

very interested...

 

Sub'd. Interested as well

 

Well, I'm impressed. I'd love to see some of the V6 guys here hitting those numbers.

 

Wow. Thats impressive. That would be a nice addition.

 

Thank you for posting this up,good to hear you say the word TOUGH about this motor.From what I hear the timing chains stretch on these motors,is this true?If so is there a better chains out there? I have a UDP that im very hesitant to install,any thoughts on the pulley? Thanks,

Dan

 

Can you elaborate a little more on what you did to your transmission, and where did you get that converter? Not sure if there is anything out there for our 5 speed trans.,not even a trans tune as far as i know.

 

Sorry , just read your last post about the trans,didnt read before,my bad!
Curious about the shift kit,converter and tune thou.

 

I gave her the shift kit to assist in racing her on the track which will be the plan for the car in the near future... The manualised auto is very responsive i.e. gear shifts are instant, and it makes her a lot of fun to drive. Nothing too fancy or difficult to do here, although I've got the 4 speed which is also far easier to tune, the 5 speeds are a bit more difficult. If you have any specific questions let me know. I'll explain the high converter below in response to zepcom.

5500 converter?

Is that a typo?

Why so high?

When this car was completed and ready for tuning the last thing we were waiting on was for the trans to come back. We were going for a 4000 converter originally as we were confident this was big enough to get it out of the hole off the line, but due to circumstances at the time we were going to have to wait a bit, the 5500 converter was ready to go and we wanted to start tuning...

Due to future plans with this car (upgrade engine internals and a bigger turbo) the 5500 will probably be just what we're looking for... Either way, at the moment the 5500 converter is working and feels fine to drive.

 

subscribed

 

looks very interesting!

 

Schwartz, Awesome e-moto con

 

I have a v8 also but this is really cool stuff post away please!

 

The only reason timing chains were stretching is because the oil life monitors on the car were too prolonged, and owners who didnt subscribe to the "oil change every 3000m/5000km" philosophy would run they're oil down to the 5% and further territory. This in turn would not provide proper engine oil performance and hence would alllow the chains to become excessively hot and improperly lubricated, causing them to stretch and or break. I believe GM offered a reflash to fix the oil life indicator issue.

 

Not sure I buy into what you are saying.
1. I've never heard of any reflash from GM for the LY7.
2. My chains went out at around 35k miles.
3. I ran royal purple oil starting at 700 miles.
4. GM said that the royal purple was better than any oil they put in the engine and to keep running it. They even made the dealer replace it when they rebuilt the engine.

Not everyone has the chain problem. Some last for a long time, others don't, including other GM cars with the same LY7 engine.

 

5500 converter?

Is that a typo?

Why so high?

 

This thread is what I've been waiting for...

-Dennis-

 

i've been watching your vids for a while, i believe you ran a 14.2 N/A?

 

That run wouldn't of been me and those vids wouldn't be mine, I've kept this thing in the dark for the most part and taken very few videos of her. I think I've posted a couple of early pics around the place though from a while back. There are some N/A alloytecs running low 14's though.

Quickest N/A LY7 over here ran a 10.6 or so but the LY7 was sitting in a very small/light car fitted out for the strip so I don't really count it... that had a custom intake manifold and cams and may have even been stroked from memory... That was going back a couple of years now. I can't remember the details but I think someone made a mistake somewhere and blew the whole engine up to the point where absolutely nothing could be salvaged. They never put another one together and havent heard of any other LY7's running those numbers whether N/A or FI.

 

Awesome info. Thanks so much for posting.

Are there any resources in Australia for the 5-speed that we have?

 

Awesome info. Thanks so much for posting.

Are there any resources in Australia for the 5-speed that we have?

Our 5 speeds will be the death of us lol

Simply put, the 5 speeds are still a drama for us... I elected to buy the 4-speed for a reason lol.

There's some geeks looking into it over here but it's not high on anyones priority list. For simple performance packages (a CAI, full exhaust and tune where we can see up to 40rwhp gains due to some of the tuning now) the 5 speeds aren't an issue though. I assume the same is for you, but when serious modifications need to be made then yes, the 5 speeds are an obstacle leading to more $$$!

Sucks I know.

 

Our 5 speeds will be the death of us lol

 

Out 5 speeds are only rated at 285hp so until someone figures out how to stop them from exploding i'll just have to drool over your turbo, cool?

 

hmm, i wonder if MACE can tune my car if i do get a turbo kit..

Out 5 speeds are only rated at 285hp so until someone figures out how to stop them from exploding i'll just have to drool over your turbo, cool?

who said this?!

 

Look, I'm not going to debate the timing chains issue, I'm only stating what GM had informed me. My chains stretched and dropped an engine at 60,000miles, and when warranty replaced the engine after teardown and a diagnosis was made, this is exactly what I was told. My ECM was reflashed at that time, a number of sensors were replaced, and I drove away.
As a technician, and have had dealt with a ton of costumers vehicles having become victim to catastrophic failures of an engine (not just the LY7) due to the fact that yes, they would rather use the provided oil life indicator rather then the "piece of mind every 3000 mile" rule, this particular information provided by GM themselves and they'r tech's made every bit of sense to me.
Regardless of what brand of oil you use or what particular additive boosters you may use, the LY7, and most modern engines are prone to the issue at hand here. I am not aware of your oil change schedule. But if you stick to the classic rule of "every 3k miles", and your timing chains still went at 35k, please do tell, because I might think at that point, of giving my G8 a heart transplant, because that just seems to reveal a product with terrible quality control and a substantial loss of consumer faith.

 

Look, I'm not going to debate the timing chains issue, I'm only stating what GM had informed me. My chains stretched and dropped an engine at 60,000miles, and when warranty replaced the engine after teardown and a diagnosis was made, this is exactly what I was told. My ECM was reflashed at that time, a number of sensors were replaced, and I drove away.
As a technician, and have had dealt with a ton of costumers vehicles having become victim to catastrophic failures of an engine (not just the LY7) due to the fact that yes, they would rather use the provided oil life indicator rather then the "piece of mind every 3000 mile" rule, this particular information provided by GM themselves and they'r tech's made every bit of sense to me.
Regardless of what brand of oil you use or what particular additive boosters you may use, the LY7, and most modern engines are prone to the issue at hand here. I am not aware of your oil change schedule. But if you stick to the classic rule of "every 3k miles", and your timing chains still went at 35k, please do tell, because I might think at that point, of giving my G8 a heart transplant, because that just seems to reveal a product with terrible quality control and a substantial loss of consumer faith.

When i brought my ve it had 70,000km my first timing chain replacement was a month ago at 345,000km. Always ran 98unleaded and changed oil every 15,000km. Used penrite oil for every service. Not a bad result

 

CazG8,

I don't want to sit and argue with you either. But I am still suspect of what GM told you. How does a timming chain strech just because you didn't change the oil early? Sorry but that dosen't pass the smell test for me. Also I've heard a lot of lies and half truths out of GM lately that have left a bad taste in my mouth.

If the OLM was an issue, wouldn't there be a recall to flash it? Quick and simple process.

There is more than a ton of research on oil out there. With the modern day oils and addatives along with the synthetics, 3k oil changes are a thing of the past and your just dumping money down the drain.

Hell, even Harley says to change the oil every 5K and a air cooled motor is a lot harder on oil than a water cooled motor will ever be.

And yes, I followed the OLM when changing the oil in my G8, about 10K between oil changes. I also followed it in my '04 Chevy truck which now has 80K miles and no issues.

The timming chain is just a bad design with inferior metals, plain and simple. But it would cost GM a ton of money to recall and replace them. So instead, they take the gamble that most of them will last thru the warrenty. It's cheapier for them to replace a few than replace them all.

 

Hey guys,
I'm the one responsible for all the work on SVZT's vehicle........ I though id join up and help out with any further questions you might all have regarding this machine!

So firstly let me start by saying hello to all......

As mentioned any questions regarding our turbo kit, feel free to ask. Also we have done a turbo kit to suit the VE model, if you jump and Like our Facebook page you can see all of the progress from it. There's also a You Tube vid of that car as well if you check out our channel!

Cheers

 

Thanks for chiming in ProFlowFab. What can you say about our Bosch ECM and tuning options?

-Dennis-