Just got my 20's w/285's on the rear [Archive] - Pontiac G8 Forum: G8 Forums - G8Board.com

: Just got my 20's w/285's on the rear


g8er
04-06-2008, 12:03 AM
I just got my 20's put on which was a difficult task trying to find them to fit in black. Turned out to be a perfect fitment with the tire filling the wheel well. Now I am off to figure out if there is a lowering kit out there. I really want to get this thing level as the rake bothers me.

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9327.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9330.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9328.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9331.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9326.jpg

LS2GTO
04-06-2008, 12:11 AM
Very nice!

What's the brand and specs on the rims?

tripower
04-06-2008, 12:31 AM
Nice!

Polefighter
04-06-2008, 12:47 AM
Nice indeed, good 1" drop will be awesome. Again we ask what are wheel specs...

g8er
04-06-2008, 01:16 AM
Wheels are Zenetti Legend. 20 X 10 rears and 20 X 8.5 front. Off set +40 front and +38 on rear.
Be very careful with wheel selection as not all will work due to the caliper clearance. Looks like only wheels that flare out are best bet.

mijo1479
04-06-2008, 07:48 AM
tirerack.com measured a G8 and has one spring system for sale on the website

Cashed
04-06-2008, 08:36 AM
looks good!

johnh
04-06-2008, 10:58 AM
Looks good....rake's not that bad...

asylum
04-06-2008, 11:07 AM
the size and offset looks perfect! those rears really dont look like 285's though! must be the big flares making it look odd.


what i'd really like to see is a front-on shot, down the side of the car showing the front and rear rims... would get a better idea of the offset/dish difference

bobbo
04-06-2008, 11:11 AM
looks good. the black rims make all the chrome around the handles and window not look so trashy. nice choice on the rims.

g8er
04-06-2008, 11:35 AM
the size and offset looks perfect! those rears really dont look like 285's though! must be the big flares making it look odd.


what i'd really like to see is a front-on shot, down the side of the car showing the front and rear rims... would get a better idea of the offset/dish difference

Good idea. I'll get a few shots of the front so that you can get a better idea of the offset / stagger. The tire / wheel fills the rear wheel very well...any larger would be too much in my opinion. Plus when I lower it I want the wheel to fit right into the wheel well. Thanks for the comments guys.

chill
04-06-2008, 12:07 PM
Looks like only wheels that flare out are best bet.

thats upsetting, i like the deep dish look in the rear for sure!

nice choice on wheels the car looks great! now lower that thing!!!

chrish

locrzng888
04-06-2008, 12:16 PM
Give us he tire sizes, are they 285-35-20's, on the rear and whats up front. That 285's got to be taller the the original.
locrzn

g8er
04-06-2008, 12:50 PM
thats upsetting, i like the deep dish look in the rear for sure!

nice choice on wheels the car looks great! now lower that thing!!!

chrish

Thanks for the compliment. Actually if you pick the right wheel you can still get the deep dish look...it's just that the options are narrowed. Take a look at this photo of the rear wheel. As you can see I was still able to get that deep dish look although the wheel is flared.

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9332.jpg

g8er
04-06-2008, 12:53 PM
Give us he tire sizes, are they 285-35-20's, on the rear and whats up front. That 285's got to be taller the the original.
locrzn

Tire sizes are 245/35/20 and 285/30/20. Sizes compared to stock are very close. My wheel guy was actually very impressed with the fitment as he thought this was as close as you can get with this setup. Front setup was identical in height to stock. Rear was just a hair taller.

locrzng888
04-06-2008, 12:57 PM
Its gonna be bad ass when you get it lowered. Makes the tires look shorter because you have so much gap between the tire and wheel well opening. cool stuff. congrats.
locrzn

g8er
04-06-2008, 02:00 PM
the size and offset looks perfect! those rears really dont look like 285's though! must be the big flares making it look odd.


what i'd really like to see is a front-on shot, down the side of the car showing the front and rear rims... would get a better idea of the offset/dish difference

Here are a few more pics from the front. It's tough to really see the back, but hopefully it gives you an idea.

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9335.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9334.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9329.jpg

Rippin'6's
04-06-2008, 02:42 PM
how did my car get to Nashville.. jk man I love the deep dish you did and the squared off is a small touch that really "means up" the car from behind. Its good to see that the black on black look on the g8 is proving to be a good one..

asylum
04-06-2008, 09:14 PM
that looks tough! even more dish on the front than i thought it would have, that would look awesome when rolling

GT-610
04-06-2008, 09:28 PM
rims are hot,melt those tips down for scrap though!:D

dodson914
04-06-2008, 09:31 PM
rims are hot,melt those tips down for scrap though!:D

Ouch! I am not posting any pics of the mods I have coming in the next two weeks. You guys are brutal. LOL

locrzng888
04-06-2008, 09:42 PM
I think I'm still going to find a 9.5 to tuck the tire just a little more. Maybe it won't look like its sticking out as far when you get it lowered. What did you end up paying for the full set mounted and balanced? What car were those wheels actually built for, like a bmw. My 300 wheels were 22's and built basically by AR for the 300, magnum and charger. Just curious.
Very cool look
locrzn

2010G8GXP
04-07-2008, 09:00 AM
Wheels are Zenetti Legend. 20 X 10 rears and 20 X 8.5 front. Off set +40 front and +38 on rear.
Be very careful with wheel selection as not all will work due to the caliper clearance. Looks like only wheels that flare out are best bet.


damn that looks to be the exact specs of the Iforged wheels i have on my lexus. is the G8 a 5 bolt lug?

LS2GTO
04-07-2008, 12:36 PM
Thanks for posting pics, 20"s look perfect for the G8.

I wonder if those wheel will clear the brembo brakes on the GXP?

Rue_G8GT
04-07-2008, 12:58 PM
Ride looks sweet man! Excellent job!

locrzng888
04-07-2008, 04:09 PM
g8er, have you encountered any quirks in your computer since the tires are about 1/4" taller. I wouldn't think that amount would make a difference. I just called my dealer to see if they can recalibrate my computer for the 1 inch taller tire that I want to run. If so, I may go to a 20 myself. Most manufactures have some differences in there specs, never a 1/4 inch. Just checking to see if its all working out.
locrzn

g8er
04-07-2008, 09:53 PM
g8er, have you encountered any quirks in your computer since the tires are about 1/4" taller. I wouldn't think that amount would make a difference. I just called my dealer to see if they can recalibrate my computer for the 1 inch taller tire that I want to run. If so, I may go to a 20 myself. Most manufactures have some differences in there specs, never a 1/4 inch. Just checking to see if its all working out.
locrzn

So far so good. I have not had any issues with the computer. I am interested in what the dealer tells you though. Let me know if they suggest updating the computer for the modification.

g8er
04-07-2008, 09:56 PM
Thanks for posting pics, 20"s look perfect for the G8.

I wonder if those wheel will clear the brembo brakes on the GXP?

I'm not sure, that will definitely be a consideration with those calipers. I was somewhat limited on my choices as the front calipers are quite large. May want to take a measurement when they come out and compare to the GT model.

g8er
04-07-2008, 09:57 PM
damn that looks to be the exact specs of the Iforged wheels i have on my lexus. is the G8 a 5 bolt lug?

Yes it is 5 bol.

g8er
04-07-2008, 10:02 PM
I think I'm still going to find a 9.5 to tuck the tire just a little more. Maybe it won't look like its sticking out as far when you get it lowered. What did you end up paying for the full set mounted and balanced? What car were those wheels actually built for, like a bmw. My 300 wheels were 22's and built basically by AR for the 300, magnum and charger. Just curious.
Very cool look
locrzn

I think I will be ok with a drop as the rear sits just at the fender. I'm not sure what vehicle the wheels were designed for. I was told that the bolt pattern is similar to that of the BMW's though. I think the wheel is somewhat new...but I could be mistaken. 9.5 would be safe bet.

Russo
04-07-2008, 10:09 PM
whats the size of the gap between the brakes and the spokes? i'd like to see some 18s with that offset on there to shorten the height gap between the brakes and rim..

BlackGOAT07
04-08-2008, 12:18 AM
Looks good! Gotta love Black on Black!

locrzng888
04-08-2008, 02:03 PM
The bmw's are the same bolt pattern and same center bore for the hub. I'm looking at the rough racing which is a chrome 19x9.5 and the front is an 18x8.5.
I did speak with the dealer and they can't change the program to an inch taller tire, if they could have I would have went with the 20's. I just like a little more sidewall so I think the 275-40-19 will work out good on the 9.5. I'm just waiting for them to come in next week. Have you found any springs yet? I'm planning on waiting til the eibach come out. In my opinion they are the best spring for the street. I used them on my 300c and really liked the way the dropped the car all the way around. Handled awsome. Hopefully they will be out soon. I'll post when I get my wheels.
locrzn

xp3nd4bl3
04-08-2008, 04:53 PM
How's the ride quality and noise with 20's?

Stingpac
04-12-2008, 10:49 PM
http://www.axiswheels.com/wheels.php?id=shine

These are the wheels I plan on gettin' for mine. (I have the 19" wheel option already)

I'll go with a 19 x 8.5 front/ 19 x 9.5 rear. I like the idea of a 20" wheel ... and I think it'd look nicer too ... but I don't wanna cut into the performance of the car.

And with a 1" drop ... I think these would look real nice.

CoppeR
04-13-2008, 04:51 PM
20's are def sharp on these cars. Looking good!

SPARKYBOY5X8
04-15-2008, 11:26 PM
One thing, anything over 19" you're hurting performance, as your car will take longer distances to stop, accelerate more slowly and handle less around corners. They do look nice though. Look to skinny to be 10" in back. A 18x 10 or even 19x10 would wider as the taller you go you are really taking away the extra width in terms of looks from the rear.

g8er
04-16-2008, 11:05 AM
One thing, anything over 19" you're hurting performance, as your car will take longer distances to stop, accelerate more slowly and handle less around corners. They do look nice though. Look to skinny to be 10" in back. A 18x 10 or even 19x10 would wider as the taller you go you are really taking away the extra width in terms of looks from the rear.

Actually my wheel guy measered the height and tire / wheel diameter compared to stock 19" setup and it was almost exact. (just a hair taller). As far as the rear width, perhaps the pictures do not represent the width accurately as you would not want the tire coming out any further at the risk of looking rediculous. I actually may have issues with lowering the rear since the tire may hit the wheel well. (I say this as a warning to anyone who is looking to fit a 285 in the rear and is planning on lowering it). Once there is a reputable kit available I will post my results so we all don't make the same mistakes.
I agree with the above with regards to performance...I just chose to go with appearance over the slight lose of performance as I feel it makes a big difference in the overall look of the car. I plan on putting plenty of aftermarket gadgets once they come available to make up for the performance lose. ie. Supercharger, CAI, Headers, etc. I have already had custom work done to the exhaust in which I am very pleased with (check out the modifications section for my post where I have sound clips for anyone interested).

boostedG8
04-17-2008, 10:16 PM
Those pics make it hard to tell how the wheels sit in relation to the fender. If you get a chance could you possibly post closeup pics of both the front and rear fender's from above. I want to get a better idea as to what I can stuff in there...

Something like this maybe:http://kahn.bol.ucla.edu/rearfender01.jpg

Mr. Sandog
04-17-2008, 10:19 PM
How much room between the inside wall of the tire and the suspension components (in other words, how much further could you have moved the wheel/tire in)?

locrzng888
04-18-2008, 06:56 AM
Thats one reason why I went with the 19x9.5. The tire comes out too far to lower the cars with a 20x10, I like just a little more tire on my cars. The 19x9.5 that I'm buying has more offset which should bring the the wheel in further from the edge of the fender. When the wheels do arrive the tire doesn't set in far enough I'll just send those tires back and do the 255-35 instead of the 285. The 285 is over 11" wide and the 255 is about 10.5. I'll just see how it all works out. I'm definetly going to lower my ride and the tire has to set in enough to allow the car to change angles without hitting the rear tire. I hope the 9.5 will allow that with the 285, its definetly a big wide tire. I'll let you know today hopefully when we get the tires mounted.
locrzn

locrzng888
04-18-2008, 05:39 PM
Well I got my wheels tonight, but, they just didn't look right. The offset or something wasn't right and tire actually stuck out further then g8er's and its only a 9.5. The front looked pretty good. I'm just not sure what to think. We pulled them back off to rething the deminsions. I may just go with an 8.5 all the way around and put a 255-40-19 on the rear to get a better offset look even though its not. I don't know what to think. I've put dozens of wheels and tires on cars and never had this much of a problem. Then they didn't send the hub centric ring to fit the wheel and hub. That pissed me off. Well, I'll get it worked out.

Mr. Sandog
04-18-2008, 07:26 PM
Well I got my wheels tonight, but, they just didn't look right. The offset or something wasn't right and tire actually stuck out further then g8er's and its only a 9.5. The front looked pretty good. I'm just not sure what to think. We pulled them back off to rething the deminsions. I may just go with an 8.5 all the way around and put a 255-40-19 on the rear to get a better offset look even though its not. I don't know what to think. I've put dozens of wheels and tires on cars and never had this much of a problem. Then they didn't send the hub centric ring to fit the wheel and hub. That pissed me off. Well, I'll get it worked out.

What's the offset of your wheels? Should be stamped on the inside of the wheel and is likely preceded by the letters ET, like 'ET30' or 'ET 35'.

boostedG8
04-18-2008, 08:28 PM
locrzng: Did you take any pictures? I'm curious as to how far the wheels actually stuck out.

Some people like the wheel flush with the fender ;)

ignition
04-18-2008, 10:29 PM
I just got my 20's put on which was a difficult task trying to find them to fit in black. Turned out to be a perfect fitment with the tire filling the wheel well. Now I am off to figure out if there is a lowering kit out there. I really want to get this thing level as the rake bothers me.



http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9330.jpg



http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9331.jpg

http://i180.photobucket.com/albums/x261/michael69sarah/IMG_9326.jpg

nice wheels but it looks like a 4x4 at that hight...fit some tein coilover shocks and you can the get the hight just right for your rim offset....nice

locrzng888
04-19-2008, 04:58 AM
The fronts were +35 and they were supposed to machine 5mm off the mounting surface to tuck the wheel a little more. The rears were plus 45. I think the tire was the issue. I'm going back today to have them mount the 245-40 on the rear wheel to just see what that looks like on the car. The 285 was just out too far and screwed the look of the car up. I'm going to call tirerack to today and order a 255-40-19. If the test mount of the 245-40 looks ok I'll just mount the 255-40 on the 9.5. I should have had them take 5mm off the rear also. But, since the didn't on the front like they were supposed to, telling them to take 5mm off the rear would have just been wasting my time. The 285 is 1.2 inches wider (11.4 wide)then the 255 and the 255 (10.2 wide) is about a 1/2 wider the the 245(9.7 wide), these are section widths. It should work out ok. I'll take some pictures when I go back today to have the remount the 245 on the 9.5. I'll get back to you guys this afternoon.

Mr. Sandog
04-19-2008, 09:17 AM
I would check the stamp on the inside of the wheel to be sure. +45 sounds right so just double check to make sure that is what you got. One inch meansy only one half inch per side, that is not very much at all.