Gears for the heaviest Whippled s550 with tall tires?

[Boduke0220]

I just don't see the need for more gear, if it was a dog slow 2v like we had 10 years ago id say 4.30 that bish but your making 3x the horsepower. I think youre good!

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[Sean@LethalPerformance]

I wouldn't go any shorter than 3:55 on an mt-82 on boost. Stick with the 3.31's or see how you like the 3:55's.

 

[Tommy V]

What about trap speed? Better or worse with the 3.73s?

Worse because u have to shift into 5th about the 1000ft mark and that kills your et and mph.

 

[ahl395]

I would do the 3.55s if I were you. I think the 3.73s will be too much IMO even with the effective calculation.

Also don't feel too bad, my car weighed 4300lbs without me in it :lol:

 

[5.oh]

I have 3.73 and it blows....making a little more power but on a walmart blower

 

[Oscifer]

I'll go ahead and take the other side here and say I love it. I have the exact setup you're describing. MT82 and Whipple at 740hp with 305/35/20. I feel like a lot of people don't take into account the tire size and how it affects the gear ratio. Especially when the majority seem to end up with a wheel and tire size that equates to a higher effective ratio then what they started with. On the other hand, while I do some road course track days, I do absolutely zero drag racing.

 

[SVT-DADDY]

I'll go ahead and take the other side here and say I love it. I have the exact setup you're describing. MT82 and Whipple at 740hp with 305/35/20. I feel like a lot of people don't take into account the tire size and how it affects the gear ratio. Especially when the majority seem to end up with a wheel and tire size that equates to a higher effective ratio then what they started with. On the other hand, while I do some road course track days, I do absolutely zero drag racing.

You running 3.73's then?

 

[Oscifer]

Yes

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