f355 rear tires

I like it. My car had new tires on it when I got it at the end of last year so it will be awhile, but when I need to buy tires for it I will go with the 295s on the rear for sure.

 

I've read that the 295's make the car feel not as light and nimble through the turns, even though grip is greatly increased. Any noticeable difference in turn-in feel or change-over?
I thought about 295's but went stock size as I didn't want to affect the feel of the car.

It looks really great and very very mean!!

 

Looks good!

 

Let us know how they work out. There are a lot of good tires out there these days, to be honest I think it's tough to go wrong with any of the choices available for our cars if you do a minimum of research.

 

Nice look, I am also considering increasing the size of the tires, with the 225/295 I am concerned with the change in ratio and for potential for change in steering response. Also a larger contact patch in the rear will potentially increase the stresses on the transaxles, especially if you like straght-line accelerations. I have 360 challenge wheels and am considering 235/285 like the Stradale.

 

The pilot sport are the best tire for the 355. 295 on the back is great but I went to 235 40 on the front. The 225 is too skinny. For anyone that buys the ps2, you will find even better grip when they are worn 25 % or more. If you went with the 355 speedline challenge wheels, then you get even better response. Add in the tikor titanium wheel bolts and you have the optimum. The 360 challenge wheels are nice but wont clear the hats on the back wheels. Spacers are crap for these cars.

 

No issues with fender clearance I take it Jim?

 

295/35s here with nothing but improvements to report. With the OEM size it would break and get squirly in 1st to 2nd and with the 295s it stays tracking right and launching in 1st is better.

 

275/35 on the rear for me, it is even more nimble than stock with the shorter sidewall. 295 is just a tad too wide for a 10" wheel, 10.5" is the narrowest I'd run with a 295. It allows the tire to sway when the sidewalks stand up perfectly straight.

Look at any proper racecar setup (formula cars especially) and the sidewall will lean slightly inward from bead to shoulder. The sidewalls are not parallel so they can't act as "hinges" so to speak.

For strictly street use I you'll be fine and it does look killer.


Rob

 

Didn't the challenge cars run 295's on 10" rims? Seemed to work ok for them.

That said, you'd need to be a pro to feel the difference between 275's and 295's of the same model tire, and you'd probably have to drive them back to back. They might be worth half a second on a road course. Might, if the car was set up properly to use them and you knew how to drive the car at it's maximum. If one looks better to you than the other, I honestly wouldn't sweat it unless you're planning to run time trials - and in that case the penalty for running 295's probably wouldn't be worth the fractional seconds you'd pick up.

 

Any chance the 295/35 tire is longer in diameter vs stock... or does the drop in aspect ratio make it about the same or smaller diameter? At 25 mph, my speedo overstates the speed and reads around 28 or 29 mph... I would be open to a little longer diameter tire that might get the true speed closer to the speedo reading

 

wow - very helpful! thanks! It looks like if 275/40/18 would be best for me if I deviated from stock.

 

I wouldn't sacrifice acceleration for an accurate speedometer. That small change will barely put a dent in your speedo inaccuracy. Checkout www.speedohealer.com.

 

Yes, Pete. Pirelli Slicks...

F: 235/645-18 Pirelli D3 8820
R: 295/680-18 Pirelli D3 8821

This year I switched to the DH compound. I don't think D3 is offered anymore.

 

These sizes are also the recommended oversize tires.

 

I run the same size as you Rob. I ran the stock size and also the 275/40 size before settling on the 275/35 size. I chose that size based on the better handling on the track. For the street any of the sizes mentioned would be fine.

 

The tire fitment looks great on your car Jimmy