Offset Reference Ranges - "Will it Fit?" - Page 63 - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1241 of 1254 (permalink) Old 12-17-2018, 09:18 AM
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Originally Posted by tdrake2406 View Post
Will these fit on the back of the car? I am trying to get an 11" tire in the back since I'm supercharged now and tired of just spinning.

https://www.ebay.com/itm/MRR-M228-20...-/392182416663
Fronts will contact suspension I believe. a 9.5" +40et will come close to contacting but will clear. Not positive on the rears, but I don't think anyone has fit an 11" wheel without pulling the fenders.

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post #1242 of 1254 (permalink) Old 12-17-2018, 02:54 PM
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Quote:
Originally Posted by Slizzo View Post
Fronts will contact suspension I believe. a 9.5" +40et will come close to contacting but will clear. Not positive on the rears, but I don't think anyone has fit an 11" wheel without pulling the fenders.
I have 9.5" +40 TSWs on my front, but with BC coilovers. Clears by maybe half an inch.


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post #1243 of 1254 (permalink) Old 12-18-2018, 08:20 AM
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Originally Posted by yutzybrian View Post
I have 9.5" +40 TSWs on my front, but with BC coilovers. Clears by maybe half an inch.
Yeah, I know. I had 20x9.5" +40et on my stock suspension G8 for a while, cleared fine with a 275/30/20.

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post #1244 of 1254 (permalink) Old 12-19-2018, 10:26 AM
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Originally Posted by Slizzo View Post
Fronts will contact suspension I believe. a 9.5" +40et will come close to contacting but will clear. Not positive on the rears, but I don't think anyone has fit an 11" wheel without pulling the fenders.
Is there a 10.5" rim/tire that could fit in the back? Would an 11" work but possibly just stick out of the fender well?
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post #1245 of 1254 (permalink) Old 12-21-2018, 08:31 AM
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If you're willing to have wheel and tire stick out from behind the vehicle than anything can fit.

The wheel wells on the G8 are rather small, and over 285mm with proper offset to sit in the fender and not contact anything starts getting hard. Rolling fenders usually gives a few more MM to play with, but you'll need to seriously pull fenders to fit something over that.

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post #1246 of 1254 (permalink) Old 03-11-2019, 10:06 PM
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Originally Posted by SpeedRacerX View Post
fronts

275/35-19 on 19x9.5 w/+40 offset or +35 w/5mm spacer
If we add a 5mm spacer to a 35mm offset wheel, the new offset would be 30mm not 40mm? Am i right?

If so adding a 5mm spacer to a 45 makes it a 40.

Please correct me if im wrong so i dont get it wrong

TiA

Also
I will be doing 19x10 with a 42mm and a 19x9.5 with a 39mm
Looking into a 285 35 19 and a 275 35 19 potenza re71r tires or 275 35 19 and 305 30 19 hankook ventus rs4


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post #1247 of 1254 (permalink) Old 03-12-2019, 09:02 AM
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Originally Posted by RaptorGXP View Post
If we add a 5mm spacer to a 35mm offset wheel, the new offset would be 30mm not 40mm? Am i right?

If so adding a 5mm spacer to a 45 makes it a 40.

Please correct me if im wrong so i dont get it wrong

TiA

Also
I will be doing 19x10 with a 42mm and a 19x9.5 with a 39mm
Looking into a 285 35 19 and a 275 35 19 potenza re71r tires or 275 35 19 and 305 30 19 hankook ventus rs4
You are correct.

EDIT: You are correct when talking about positive offset wheels. Reverse is true for negative offsets (but you don't need to worry about those here).

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post #1248 of 1254 (permalink) Old 03-12-2019, 10:56 AM
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Looking at buying the 4 pot brembos for the front. I am running the 19x8.5 Regal GS wheels with 45mm offset. Will they clear, or do I need a spacer and longer studs?


2009 MSM G8 GT
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post #1249 of 1254 (permalink) Old 04-10-2019, 03:25 PM
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Sorry in advance. I've been reading through this and sent a member or 2 a message with similar wheels but I thought I'd ask here.

2016 SS wheels. 8.5 fronts with a 255/x/20 and /9.5 with a 285/30/20 (i believe)

Am i going to run into any clearance issues with a 25 offset front and a 39 offset rear(rear im pretty sure is fine). I'm mostly concerned with the front wheels being too close to the suspension or looking weird in the wheel well. I feel like I'm going to be ok but my wheel guy is MIA for a few days so I'm trying to do some homework.

Thx!

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post #1250 of 1254 (permalink) Old 04-11-2019, 08:26 AM
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Quote:
Originally Posted by BigGuyBiggerTruckTN View Post
Sorry in advance. I've been reading through this and sent a member or 2 a message with similar wheels but I thought I'd ask here.

2016 SS wheels. 8.5 fronts with a 255/x/20 and /9.5 with a 285/30/20 (i believe)

Am i going to run into any clearance issues with a 25 offset front and a 39 offset rear(rear im pretty sure is fine). I'm mostly concerned with the front wheels being too close to the suspension or looking weird in the wheel well. I feel like I'm going to be ok but my wheel guy is MIA for a few days so I'm trying to do some homework.

Thx!
OEM SS Wheels are 8.5" and 9", Also 19" in diameter. If you're talking about the Holden optional wheels, I don't know the specs of those.

But OEM SS Wheels will fit without issue.

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post #1251 of 1254 (permalink) Old 04-11-2019, 12:21 PM
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Quote:
Originally Posted by Slizzo View Post
Quote:
Originally Posted by BigGuyBiggerTruckTN View Post
Sorry in advance. I've been reading through this and sent a member or 2 a message with similar wheels but I thought I'd ask here.

2016 SS wheels. 8.5 fronts with a 255/x/20 and /9.5 with a 285/30/20 (i believe)



Am i going to run into any clearance issues with a 25 offset front and a 39 offset rear(rear im pretty sure is fine). I'm mostly concerned with the front wheels being too close to the suspension or looking weird in the wheel well. I feel like I'm going to be ok but my wheel guy is MIA for a few days so I'm trying to do some homework.

Thx!
OEM SS Wheels are 8.5" and 9", Also 19" in diameter. If you're talking about the Holden optional wheels, I don't know the specs of those.

But OEM SS Wheels will fit without issue.

Sorry, I should have clarified. 2016 Camaro ss wheels. 20s

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post #1252 of 1254 (permalink) Old 04-12-2019, 08:26 AM
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Originally Posted by BigGuyBiggerTruckTN View Post
Sorry, I should have clarified. 2016 Camaro ss wheels. 20s
That's definitely different then. Not quite sure on that answer unfortunately.

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post #1253 of 1254 (permalink) Old 04-12-2019, 03:02 PM
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Quote:
Originally Posted by BigGuyBiggerTruckTN View Post
Sorry, I should have clarified. 2016 Camaro ss wheels. 20s
I've seen G8s with the 6th gen wheels, they appear to fit the same as 5th gen, not sure if they had fenders rolled or not.


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-Kooks 1-7/8 LT, 3" Solo, RotoFab CAI, Full Zeta II suspension with BCs, Monster LT1-S & Tick Master Cylinder, 3.91 w/ TrueTrac
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post #1254 of 1254 (permalink) Old 04-12-2019, 07:01 PM
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Originally Posted by yutzybrian View Post
I've seen G8s with the 6th gen wheels, they appear to fit the same as 5th gen, not sure if they had fenders rolled or not.

thx. I feel like theyre not that much diff than the 2010s dimensions-wise. the offset is a lil different but nothing too drastic.

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