4th gear vs 5th on a dyno.

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09-18-2005, 08:20 PM

Chopper

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4th gear vs 5th on a dyno.

I got a free run on a dynojet dyno the other day and my numbers were 255.3 Hp and 293.4 tq.The operator ran the car in 5th gear.I have stock rear end gears.Which way would that throw the numbers?I didn't think about it untill I was back home.

09-18-2005, 08:23 PM

racer02GTstang

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RE: 4th gear vs 5th on a dyno.

5th gear is not a 1:1 ratio, its overdrive.... 4th gear is 1:1... i think that is correct?

09-18-2005, 08:27 PM

ZW99GT

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RE: 4th gear vs 5th on a dyno.

VERY nice numbers!

09-18-2005, 08:37 PM

Chopper

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RE: 4th gear vs 5th on a dyno.

Quote:

ORIGINAL: racer02GTstang

5th gear is not a 1:1 ratio, its overdrive.... 4th gear is 1:1... i think that is correct?

Yes 4th is 1:1,5th is .62:1(I think)

09-18-2005, 10:36 PM

JD1969

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RE: 4th gear vs 5th on a dyno.

Quote:

ORIGINAL: Chopper

I got a free run on a dynojet dyno the other day and my numbers were 255.3 Hp and 293.4 tq.The operator ran the car in 5th gear.I have stock rear end gears.Which way would that throw the numbers?I didn't think about it untill I was back home.

You had an operator that did not know what they were doing, the numbers are not correct. It will show a higher hp than what you really have.