Taller tires screw up asr???

[XfireZ51]

My rear tires stand 26.7". That seems to be within the 4.5% stagger Phil states is within the operating range. Maybe go w a bit taller front tire.

[Bolling]

Originally Posted by 98indypacer

Almost 6% revs/mile difference may be a problem for ASR.

Diameter
Front = 25.6
Rear = 27.1
Difference = +5.9

Width
Front = 10.83
Rear = 13.58
Difference = +25.4%

Sidewall
Front = 3.79
Rear = 4.07
Difference = +7.4%

Circumference
Front = 80.3
Rear = 85.2
Difference = +6.1%

Revs/Mile
Front = 788.9
Rear = 743.2
Difference = -5.8%

How would it calculate if I put 325/30/19 on back and 285/35/18 on the front?

[edram454]

18mm.. that is a lot of spacer. hope you are running hubscentric billet spacers on that thing.

ed ramos #3028

[98indypacer]

Originally Posted by Bolling

How would it calculate if I put 325/30/19 on back and 285/35/18 on the front?

Better, about 3% difference. Try this website to play around with different sizes.
http://tire-size-conversion.com/tire-size-calculator/

[Bolling]

Will it hurt anything if I just run it with the codes each time.
Will the ASR and ABS still work properly?

[RICKYRJ1]

im running the same sizes as Dom, and asr never showed up on mine

[XfireZ51]

Originally Posted by edram454

18mm.. that is a lot of spacer. hope you are running hubscentric billet spacers on that thing.

ed ramos #3028

18mm is < 3/4". And yes running hub AND wheel centric spacer w GM Racing studs.

[edram454]

Originally Posted by XfireZ51

18mm is < 3/4". And yes running hub AND wheel centric spacer w GM Racing studs.

those are the spacers I have on mine. mine are 14mm and are billet aluminum. it cost me a fortune but I wanted the best spacers just in case. I did not put racing studs since the spacers were not that aggressively big. You will have NO problems.

ed ramos #3028

[XfireZ51]

Mine are also billet, cost about $150 for the pair. Well made. They fit very snug onto the studs and center.

[edram454]

Originally Posted by XfireZ51

Mine are also billet, cost about $150 for the pair. Well made. They fit very snug onto the studs and center.

great price. I paid a lot more than that. I found this race shop that custom makes them and they charged me a custom made price. I think I paid $250.00. that is alot for spacers I thought. Oh well.. as long as they are well made is all that matters.

ed ramos #3028