There are a few different tire choices. I was wondering at what RPM are you going through the traps in the 1/4? Please post RPM, which tire and size, and gear ratio (or year).

 

I d/k for sure but it's in the 'red'. 3.73 with 16" M/Ts-o/d 'off'.

Dan

 

2000, 3.55, 28" Hoosiers, 4300 rpm. I need about another 750-1000 rpms.

 

4:10's, 28" Hoosiers, and 5600 RPM's off the nitrous and about 6200 with nitrous (90 shot wet)

 

2001 -- 3:73 --28" Hoosiers--4250rpm at 12.48 @109.5
I want more!!!!

marc

 

I'm surprised so low since with F1's I am going through at 5500-5600. F1's are 28.1" tall. I am wondering what RPM would the 26" tall ET Streets will put me through the traps with 3:73's.

 

what he said.....

 

3.55s, 30" Hoosier Radial Slicks, (3.30 final drive ratio), through the traps at 6000 rpms in 3rd.

 

Thanks all! The reason I am asking is because the cheapest and easiest way to get more gearing (final drive ratio) is to put a shorter tire on. I don't want 4:10's because of my long highway commute (>70 miles RT) and I don't need to be spinning this thing higher for no reason for a few hours daily. Not to mention, not being able to get the power to the ground on the street. I remember there being a formula where you can plug in numbers but I can't find it.

If I go with the 26" tall ET Streets, I want to make sure that
1) I am still making power at XXX RPM
2) I don't want to shift in to OD