Austin92

I'm in the process of building my 1st camaro,it's a 92 rs.I'm looking at putting a set of 18x8 front and 18x9.5 rear on it..my question is what's the bs I need.the cars stock height and brakes.I do not want them out from under the wheel wells..just not my thing

bigdavesiroc

i have 18x8 front with 4.5 bs and 18x9 with 5 bs. fit perfectly..follow link in sig for pics.

Tibo

iTrader: (15)

Be smart and buy 4 wheels in 18 by 9.5. You can rotate them that way which will allow you to save money on tires. You can do 17 by 9.5 (I did, o well) but the clearance between the fronts and the outer tie rod end is very close and requires attention.

paul_huryk

Agreed.

Not only rotate, but there is an important advantage of having a 275 width tire up front (compared to a 245), the extra width will give you better braking and handling - in 99% of the cases.

Austin92

Trying to decide between 18 or 20 in iroc..think they are 8 in wide...nothing set in stone yet..still window shopping wheels,brakes ect

Skinny Neb

iTrader: (2)

There is a downside to having a 275 up front. Any bump, dip, or uneven section of the road pulls the wheel much harder driving around town if the roads are subpar. It can make the car a handful to drive somewhere as simple as your daily commute to work. That's part of the reason why I took the 275s off the front and put 225s on (the other reason was to save a some money and combined weight from wheel and tire.)

Tibo

iTrader: (15)

If that's your own personal experience I won't argue it, but my personal experience has not been that way. My car is lowered an inch or so and I only have rubbing of the wheel to the well when the steering wheel is fully turned. You should be able to set toe in 3/32" and that alone usually helps a grey deal with wandering and darting. A few members have 18x10.5 up front. I'm sure Paul can tell us what the weight difference of the wheels are from 8" wide to 9.5" wide.

//<86TA>\\

iTrader: (14)

I would argue as well. I ran 295's up front for quite a while and had no problems with the cars tracking or pulling/wandering on the road. 275 will be fine and i will also agree with the others here, use 4 identicle wheels and tires so you can rotate them.

Skinny Neb

iTrader: (2)

I've never had my car on the alignment rack because I can't get it onto the one at work, it may be clear the hell out of line for all I know. When I put wider tires on the front of my foxbody it did the same thing, even after I aligned it.

If the general experience from the majority of others is different from mine, disregard what I said.

Tibo

iTrader: (15)

Park on a flat slab and you can easily set toe with a ruler or micrometer, a thin string or fishing line and some patience and careful measurements. Mine drives straight. Camber gauges are pretty inexpensive too.

paul_huryk

Typical wheel is about 1.5 to 1.75lb difference moving from an 8" wheel to a 9.5" one. Tires could be another 1 to 3lbs - depending on brand and style.

Having a 225/275 stagger is going to be a handful in turns - major mechanical understeer. I would never suggest trading that for less "wandering" to anyone.

plum92_camaro

18's are about at big as you want to go on a thirdgen. 20 will look a little "donk".

I strongly urge you to consider any advice from Paul. But I will suggest this, if the car will be used for drag and you can be responsible in corners so you don't go sliding into a guard rail or ditch, then the 225/275 staggered will work. The narrow front will reduce roll resistance and the of course the 275 rears will give you more traction, but the staggered 225/275 set up will hurt your cornering.

Lonnie P

I don't have a problem with 275's in the front.
Before the extensive restoration began, I drove it rain or shine on terrible PA roads.
Only problem with the 275's is they aren't big enough.... planning to stuff larger tires on all 4 corners.