First track day done but I think I need better tires

cv129 · 06-21-2016, 06:26 PM

Quote:

Originally Posted by Jhill

Still considering re-11 just wish they had the right rear size.

I assume you are looking at TireRack. You can always step into 285/35/19, it's a good fit to your 10 in rear rims, arguably better than 275.

Jhill · 06-21-2016, 07:06 PM

Quote:

Originally Posted by cv129

I assume you are looking at TireRack. You can always step into 285/35/19, it's a good fit to your 10 in rear rims, arguably better than 275.

Yea I'm sure they fit and I know the z can still spin a 285 my concern is how close the tire is for speedo reading, miles and also the stability control programming. I know when I worked for GM I could select tire/wheel sizes for the EBCM but I'm not sure how critical it is for Nissan. Wish I still knew a Nissan tech to see if the sport and Nismo run the same or different programming for the stability.

abm89 · 06-22-2016, 10:07 AM

Quote:

Originally Posted by Jhill

Yea I'm sure they fit and I know the z can still spin a 285 my concern is how close the tire is for speedo reading, miles and also the stability control programming. I know when I worked for GM I could select tire/wheel sizes for the EBCM but I'm not sure how critical it is for Nissan. Wish I still knew a Nissan tech to see if the sport and Nismo run the same or different programming for the stability.

1010tires.com has a calculator that can give you the percentage change in wheel speed. the nismo uses 285/35/19 stock in the USA so I dont think it will be an issue.

For reference, i run a 275/35/18 on my rear axle and the speedo reads anywhere from 3-5mph faster than actual. Stability control is still functional with my setup (though it's never used on the track)

JARblue · 06-22-2016, 10:16 AM

Quote:

Originally Posted by Jhill

my concern is how close the tire is for speedo reading, miles and also the stability control programming.

Going from a 275/35/19 tire to a 285/35/19 tire means that your speedometer is off by 0.67 mph at 65 mph. So essentially negligible

Jhill · 06-22-2016, 02:35 PM

Quote:

Originally Posted by JARblue

Going from a 275/35/19 tire to a 285/35/19 tire means that your speedometer is off by 0.67 mph at 65 mph. So essentially negligible

Yea I did the calc last night and looks like just over a half in in dia, so only .25 radius. Looks like re-11 may become an option after all.

ssmoked · 06-24-2016, 09:14 PM

The only issue with pss is everyone is out of stock with no expected availability date. If you need new tires soon, it's easier to find other brands in stock

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06-24-2016, 09:14 PM	#51 (permalink)
ssmoked Enthusiast Member Join Date: Jun 2011 Location: California Posts: 487 Drives: Charger Hellcat Rep Power: 13	The only issue with pss is everyone is out of stock with no expected availability date. If you need new tires soon, it's easier to find other brands in stock