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Old 10-25-2011, 10:18 PM
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Default Turbo gears
What are the best all out drag racing gear ratio for a turbo, with a 4l60e,28in drag radials,4000stall.
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Old 10-25-2011, 10:42 PM
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4.88 and your done!
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Old 10-25-2011, 11:00 PM
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depends on your projected trap speed, but i'd say something in the 3.50 range is good.
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Old 10-25-2011, 11:36 PM
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Originally Posted by WheelsUp84z
depends on your projected trap speed, but i'd say something in the 3.50 range is good.
What do you think about 3.73...
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Old 10-25-2011, 11:46 PM
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Originally Posted by madmax4499
4.88 and your done!
at the 1/8th lol.
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Old 10-25-2011, 11:51 PM
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Originally Posted by 831jd
What do you think about 3.73...
You want to be about 500 RPM past peak power going thru the traps. That usually means around 6900 RPM on a cookie cutter LSx build. 3.73's with a 28" and standard converter loss will put you around 142 MPH trap speed.
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Old 10-26-2011, 12:15 AM
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Originally Posted by 98Z28CobraKiller
You want to be about 500 RPM past peak power going thru the traps. That usually means around 6900 RPM on a cookie cutter LSx build. 3.73's with a 28" and standard converter loss will put you around 142 MPH trap speed.
lol 142mph at least not yet..... Im talking about hitting like 115mph and 6000rpm..
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Old 10-26-2011, 12:36 PM
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Originally Posted by 98Z28CobraKiller
at the 1/8th lol.
I thought someone would get a kick out of that.

SEE! so you think you will have approx. 450 hp?

you need to give more details on your build, its all math! Vs. your combo.
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Old 11-15-2011, 08:18 PM
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I'm bumping and Hijacking!! Looking for a gear swap too. 346, 4l60e w 3600 stall, T76 at 8-10psi, currently on 26" tires. Hoping for 550ish range RWHP. ?????
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Old 11-15-2011, 10:07 PM
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Originally Posted by 831jd
lol 142mph at least not yet..... Im talking about hitting like 115mph and 6000rpm..
3.73-3.90 with your 28 inch tires based on these #s.
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Old 11-15-2011, 10:09 PM
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Originally Posted by YURVIEW
I'm bumping and Hijacking!! Looking for a gear swap too. 346, 4l60e w 3600 stall, T76 at 8-10psi, currently on 26" tires. Hoping for 550ish range RWHP. ?????
3.23 for you.
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