What gears do i need ? for 1/4

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Jan 5, 2007 | 11:56 PM

Schurters LT1

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From: kitchener/Ontario

What gears do i need ? for 1/4

Hey Guys,

not to sure on what gear i should put in the car ??

Car is an M6
28" tire
3800lbs with me in it
close to 700rwhp
7000rpm
i am thinking 3:73

i think the car should go close to 140mpr in the 1/4

Jan 6, 2007 | 08:02 AM

rskrause

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Joined: Dec 1969

Posts: 10,745

From: Buffalo, New York

It makes peak power at 7,000rpm? If so, 3.73 would be good.

Rich

Jan 6, 2007 | 09:13 AM

Schurters LT1

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Registered User

Joined: Sep 2002

Posts: 1,942

From: kitchener/Ontario

Quote:

Originally Posted by rskrause

It makes peak power at 7,000rpm? If so, 3.73 would be good.

Rich

I am not sure where peak power is, on the dyno i stopped at 6500rpm and it was still going north

I was going to try and take it to 7000rpm if it is still making power

Jan 6, 2007 | 05:23 PM

CALL911

Registered User

Joined: Oct 2002

Posts: 3,225

From: IN

If you have good drag suspension and you hook well, I say go with the 3.73's.

If you spin all the way through 3rd, go with some 3.42's.

Jan 6, 2007 | 06:13 PM

rskrause

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Joined: Dec 1969

Posts: 10,745

From: Buffalo, New York

You need to estimate your trap speed and pick a gear to cross the line a couple of hundred rpm over the peak power. This typically produces the quickest/fastest times.

Rich