I am looking to purchase a set of autox wheels for my 04 Z I would like to purchase R-comp tires and im wondering what the best wheel set up is interms of price, width and weight. do you have any suggestions? thanks, Jim

 

Which class are you going to run in? If you're staying in BS, then you have to keep the stock wheel size and ±5mm offset.

If not, typically people will go with 17" wheels, usually around 9" or 9½" wide and lightweight. There's a wider selection of tires at a lower price for 17's vs 18's.

There is no one setup that is best, if you search this forum your find lots of different wheel & tire combinations in both the stock, prepared and modified classes.

 

Currently I am in Bsp, or B stock prepared.

 

just buy a set of z track wheels, they are stock and get a dot r-compound

 

i'm in the same situation, but am looking into 18's. what are the ideal widths and offsets? also, are track tires suppose to be staggered?
i've done some searching, but am getting mixed reviews.

 

18" x 10.5" with a 6" backspace. Wheel spacers are used to adjust track with the goal of getting a wider track up front. The best Autox tires out there are either the Kumho V710 or the Hoosier A6 in 285/30-18 and a 10.5" wide wheel is ideal for those tires.

 

I would figure out which tires you want to run and work backwards from there. (Different tires will work with different wheel widths)

All else being equal, more rubber on the road is better than less, so 275's up front might be what you are looking for as well as 275's or larger in the back. I have seen a lot of 275X4 at the track so I know it can fit under the front fenders with the right offset. (The rear is easy with just about any sane offset and 9.5"+ wheel)

I am running SSR Comp-H 17" (8.5F and 9.5R) But I got them on clearance for $180 ea. And probably would look into something like the Enkei RPF1's for $250-ish rather than spend the $400+ on the SSR C RS 17's that Tire rack sells now.

The Enkei's seem to only come in 8.5" for the front so you would want to make sure the tires you want will work on that width. Avon-tech used to have a 275 tire that would work on an 8.5" wheel but tire rack doesn't have those on the web site now. The Kumho and Hoosier 275's say they need a 9"-11" wheel so you would end up with the staggered 245 F and 275R setup. (Unless you could find a 9" wheel with the right offset for the front)

Before you choose tire sizes, (staggered or not) you should have an idea of where your car's setup/handling is with your driving style. If you are running a staggered setup now and the car is neutral or even loose, you might not want to go with a "square" setup as this could get way loose for you. If your car is plowing badly on a staggered setup, you may want to increase the grip up front go "square".

Good luck with your research/purchase.

 

Thanks for the tips, I am looking to get Hoosier r comp tires and I think I would like to get a 17" or 18" square wheel set up so that I can rotate them. I would like to not have to do any mods like spacers or anything just to get larger wheels under there. so whats the widest set I can run all around with out. rolling fenders or anything like that. also which wheel works with that tire size? thanks for the help.

 

You can run 18 x 9.5 and be able to run 275's all around safely.

I beeling at superdude's Torque wheels.
Don't know how much lighter other wheels are but if people have some input on some other wheels that are 18x9.5 and weight that would be great.

 

17's are usually cheaper...so depending on how many sets you plan to go through, this could be important.

You can fit a 285 up front and the rear can accomodate a 305/315 w/ some fender rollling (w/ the correct wheel width/offset).

like mentioned above, figure out what tires you want run, then get the rims to match it...if you rim is too narrow for the tire, the edges will buldge and overall traction won't be optimal. (If you were running BS, then you'd be stuck w/ the OE rims and fitting 285's would work and probably be the best traction...but since you're running BSP, you're not limited on rim selection)

I'm looking into a 17X10.5" ish rim around 25 offset w/ rear fenders rolled...I'm waiting on some possible sponsorships for next yr before I can know what tire sizes are available to me.

check out Hoosier's article on this stuff...good reading:
http://importnut.net/tiretech.htm
https://www.hoosiertire.com/rrtire.htm

 

Actually, it's called "B Street Prepared"

Hippie has a great setup for that class.... Kodiak's IIRC

 

https://my350z.com/forum/autocross-road/309698-racing-wheels.html

 

I've been looking at Tire Rack lately and came across the Kosei K1 TS rims. According to the sales rep, the 17x9 are only 16lbs. The weird thing is the silver rims have a 35mm offset while the light gray rims has 45mm offset. The sales rep stated the 45mm is a typo and it should be the same offset as the silver rims, which is 35mm.

Has anyone used these rims for autocross? Any comments/feedback/opinion will be greatly appreciated.

 

35mm you MIGHT need a 3-5mm spacer, all depends on tire-width. I ended up with ET27 vs the NISMO's ET30 for my 2nd set of wheels since I knew the tires I will be running are wider than my RE050s which already have near-zero clearance between the suspension components (inside - there's a BIT of room outside) at 275 up front, -2.2 camber.

btw my Enkei's showed up today:



soooooo light.

 

275/35/18 and 275/40/18 for me. Seems to be working fine.
18*9.5 +35 front +25 rear and no need to roll, and no rubbing anywhere.

 

ugh, evidently my fronts WONT clear the calipers?!??! so much for measuring, it would seem the spokes are the issue.