If I had 4 rays track rims all the 8.5" wide (rears) and I put them on all 4 corners of the car and then put the same size tire on as well (255 40 18) How would that work?

what are the forum members ideas on this.

If you did this couldn't you then rotate the tires for better tire life?

wouldn't it also help in the understeer department because there is no stager?

and finally, would it throw off the VDC?

thanks

 

Well, you don't want to afford them. They list at $1,400 each.

 

$1,400 each?? There was somebody selling 4 of them for that much in the Classified forum recently.

You would have problems with VDC because all tires would be the same diameter. If you didn't care about rotating them, maybe you could put some lower profile in the front.

 

Can't speak to "Rays", but I have 18 X 9.0" SSR GT3 on all four corners. Michelin "Pilot Sport" PS2 245/40 front and 265/40 rear. Awesome tire. No VDC problem here.

 

but you cannot rotate those though!

and by the way. I already have track rims. if I bought another used set I could keep the two 8.5" from the other set and with my current two I would then have a full set of 8.5" that way. then I could sell the other 4 track 8" wide tires separately for a lower price!

so, really not much more $$$ to make the change!

 

Running the 8.5" wheels f/r with the same size tire will be fine. That is what we are running on our Touring 2 racecars and works just fine, you are able to rotate tires/wheels and no VDC problems.

 

I ran 17" x 9" wheels with 255/45 tires all around all last season with no problems, and, yes, it did help reduce understeer! No TCS issues. I don't have VDC, but it won't be an issue.

I would check that the rear track rim's offset is OK on the front though. You may need spacers.

 

Tell me about a sports car that can rotate tires

I dont think their is one

 

If I remember correctly that track rims are +30 all around so putting the 8.5" up front should not matter.

and what does it matter if no other sports car does not rotate? if this car can and it helps, why not?

 

all my time of being a Z enthusiast/ owner, I never even began to think about the 8.5 inch rear track wheels on all four corners.

They have equal offsets and if you run the same size tire on all of them, that should dramatically cut down on understeer!

 

You can get away with going 245/40/18 all around with your current setup. (This is what i'm getting done this week)

It's one less than 255, but you'd save a lot of trouble and money.

 

is there a reason you cannot do 255's all around? I currently have 255's on the back.

 

Fitment -- I wouldn't really push past 245 on 8"

IMO Unless your heart is set on 255, go with 245 and compensate with better tires.

 

I say go for it. Even if you need a smaller spacer up front, it wouldn't have to be much. Having equal sized tires all the way around should really help with the car's balance. (Just like SCC magazine did with their Z.)

As far as spacers, you might consider them regardless, if for nothing other than aesthetics. A while back an Australian member of this site posted pics of his Track model with 25mm spacers on all 4 corners. It pushed the rims out almost to the edge of the fender, just like the wider aftermarket rims. Filled up the wheel well and looked fantastic. (I'm a big fan of the Track rim design in the first place.) 25mm seems like a really big spacer, but I guess it's fine if you use high quality parts. And if you put the 8.5" rim in the front, then a smaller spacer might be needed. Maybe only 10-15mm?

 

Is this true? I guess that would explain most of the reason why a Track costs so much more than a Performance model.

What about the weight? How much to Track rims weight front/rear???

 

They are both roughly 18.6 lbs/rim.

Also, the Track Model also includes the upgraded Brembo braking system and underbody spoilers (read - NOT body kit parts).

 

Yeah, I was trying to figure the costs on the Track over the Performance...I figured wheels/brakes were the biggest difference. But the underbody diffusers ($75), front chin ($65) and rear spoiler ($370) don't add up to that much.

I think the difference between the stock 18" wheels/tires vs. Track (Ray) 18" wheels/tires is the rest of it. I guess what I'm saying is that I'd probably never buy a Track brand new because I still don't see the justification of the cost.

Thanks for the weight on the rims...wow...18.6 lbs...insane. Anyone know what the stock 18x8" wheels weight (just for comparison). Sorry, I'm still learning a lot here...I haven't even had the car one week.

 

26lbs i think

I switched from rays track wheels to 2piece racing hart c4s (25lbs) and noticed a negative change in the way the car rode and handled ... but it looked too good to switch back

 

I don't even have one.

 

neither would I.

thats why I want the rears, which are 8.5" on all four corners so you can run 255 40 all the way around!