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GrandAmGTTT
02-11-2010, 01:41 PM
What is the widest/fattest wheel we can fit on the 99 GA?

hahano404
02-11-2010, 02:10 PM
hmm with out modification. id say 9"

psy7
02-11-2010, 02:23 PM
depends on how far u want to go and are willing to spend the time on it,but i would go 9

DrFabulous
02-11-2010, 03:38 PM
Anything over 8" wide and you're going to have to be running the perfect offset/tire size combo to make it fit. I know people have gotten 8.5's to work with the right offset, but I don't know of anybody of the top of my head running 9" wheels.

Why do you want to run such a wide wheel anyways?

hahano404
02-11-2010, 03:56 PM
exactly. ive got 235 on my car which are plenty. 18x8s off a chrysler 300m

WidbyJ
02-11-2010, 05:39 PM
18x8 here also. Less than a finger-width to the spring perch. There are people who fit 22s by bashing the springs out of the way - not a good idea.... 245s will work on 17s - Good Luck!

[ChaosweaveR]
02-11-2010, 06:45 PM
My ROH's are 17x8's with a 235 width. It's perfect.

GrandAmGTTT
02-11-2010, 10:23 PM
Anything over 8" wide and you're going to have to be running the perfect offset/tire size combo to make it fit. I know people have gotten 8.5's to work with the right offset, but I don't know of anybody of the top of my head running 9" wheels.

Why do you want to run such a wide wheel anyways?

drag strip is why, i would only be using these for the strip....straight line

so what would be the full number/dimensions of the wheel? so i can find some that fit our pattern

DrFabulous
02-12-2010, 12:11 AM
drag strip is why, i would only be using these for the strip....straight line

so what would be the full number/dimensions of the wheel? so i can find some that fit our pattern

You're planning on running 18s for the strip? I would think you'd be better off with 2 light weight 16's with some sticky 235s. I *think* the mid 90's Grand Prix/Bonneville crosslace wheels were fairly light, if you wanted to go the cheap route.


I do know, however, that 245/40/17 will fit without issues, even when dropped about 1.75".

hahano404
02-12-2010, 08:16 AM
if drag only than wider makes less of a difference than just lowering the tire pressure itself. a wider contact patch by 10mm isnt gonna be much of a difference. ive seen people run as low as 4lbs of pressure. me personally wouldnt go below 9lbs. on m/ts.
but on street tires go with nitto 555r and run 12lbs.

tires make the difference.

and to add if you go higher than 8 and start to modify offset by adding spacers or by just getting a wheel with a lower offset than youll definately eat away at the bearings. we all know those arent cheap.

DrFabulous
02-12-2010, 08:27 AM
if drag only than wider makes less of a difference than just lowering the tire pressure itself. a wider contact patch by 10mm isnt gonna be much of a difference. ive seen people run as low as 4lbs of pressure. me personally wouldnt go below 9lbs. on m/ts.
but on street tires go with nitto 555r and run 12lbs.

tires make the difference.

and to add if you go higher than 8 and start to modify offset by adding spacers or by just getting a wheel with a lower offset than youll definately eat away at the bearings. we all know those arent cheap.

That, plus the fact that a 18x9 wheel is most likely going to be pretty heavy. If it's drag use only, I'd go for a light wheel and a sticky tire.

GrandAmGTTT
02-12-2010, 08:30 AM
well ya i don't want 17's lol i was thinking like 14-16" wheels and tire wise i want to get slicks, not really street tires and i already knew not to get heavy wheels, and i def. didn't want larger wheels, what i ment was just wider (drag wheels) sorry i didn't make that very clear.

so basically i need to find a wheel thats 14-16" and up to 8.5 inches wide with our lug nut pattern which is 5-115 i believe.

DrFabulous
02-12-2010, 08:33 AM
Yeah, we're 5x115.

DrFabulous
02-12-2010, 08:36 AM
I doubt you'll be able to find a 16" wheel in our bolt pattern/offset thats over 7.5" wide, though. Maybe 8".

hahano404
02-12-2010, 09:06 AM
o' im sure there are wheels in that size. 16x8 is where id go. 14s are too small and will hit the caliper. 16s are bare minimum for any brake upgrades that might happen later down the road.
check out a latest summit mag or do some online researching. 5x114.3 is actually very common. 5x114.3 they will fit fine if you need more assurance than get rings for the wheels.
im sure more than half the people on here with aftermarkets are running 114.3's

H.O. Driver
02-12-2010, 09:13 AM
bonniville cross lace rims are wide enough and the GP guys run a 255 on them with no issues. They are a 8" wide rim too. I run a 245/40/18 with no issues what so ever with my +38 offset 077's, even with my eibach springs.

If they track is sprayed right, some bonnie crosslace rims, and 245/50/16 BFG DR's will be plenty sticky. With my current setup on a good track I was doing 2000 rpm wot launches with no spinning on my 225/55/15 BFG DR's once warmed up properly :) BTW my trans hates me still lol

WidbyJ
02-12-2010, 12:10 PM
FYI - wheels from FWD caddys work perfectly, some are wider... just sayin'

GrandAmGTTT
02-12-2010, 02:19 PM
o' im sure there are wheels in that size. 16x8 is where id go. 14s are too small and will hit the caliper. 16s are bare minimum for any brake upgrades that might happen later down the road.
check out a latest summit mag or do some online researching. 5x114.3 is actually very common. 5x114.3 they will fit fine if you need more assurance than get rings for the wheels.
im sure more than half the people on here with aftermarkets are running 114.3's


ya i just thought about that after i got off my computer lol 16x8 or 8.5 are prolly my best bet without mods

stonemason90
02-12-2010, 02:27 PM
18x8 here also. Less than a finger-width to the spring perch. There are people who fit 22s by bashing the springs out of the way - not a good idea.... 245s will work on 17s - Good Luck!

i know for a fact my car had 22s in it at one point on stock suspension. what they did was they used a spacer between the hub and the wheel. also they had a certian offset idr what it was though. to top it off the fenders were rolled out. so no bashing of the springs needed if done right. lol

stonemason90
02-12-2010, 02:34 PM
You're planning on running 18s for the strip? I would think you'd be better off with 2 light weight 16's with some sticky 235s. I *think* the mid 90's Grand Prix/Bonneville crosslace wheels were fairly light, if you wanted to go the cheap route.


I do know, however, that 245/40/17 will fit without issues, even when dropped about 1.75".

buick rims arent a bad idea to go for either theyre pretty light for the most part. ya theyre buick but your only using them for the track right? lol i actually have lucerne rims on my car atm and they dont actually look half bad. theyre light and they got a decent tread size. the pirellies on it make them pretty nice as well.