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Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
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#1
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REAR GEAR CHANGE
Hey guys looking for advice. Wanting to change my rear gear from a 3:08 to either a 3:42 or 3:73 , I am running a 29” tall tire now and with my turbo set up i want to kept my rpms at the end of the 1/4 mile around 6,000 also. I have a 4l80e so not worried about freeway rpm …
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#2
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What et and MPH will it run? What are you seeing for convertor slippage?
3.42:1, 6000 RPM, 29" tire, no / zero convertor slippage - 3rd gear 151.4 MPH - 4th gear 201.8 MPH 3.73:1, 6000 RPM, 29" tire, no / zero convertor slippage - 3rd gear 138.8 MPH - 4th gear 185 MPH Stan
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#3
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Gears
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#4
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What rear do you have? I have an 8.2 BOP 3.55 gearset with open carrier.
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#5
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8.5 with a 3.08 gear now
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#6
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got it. I just listed the 3.55's for an 8.2. Good luck with your search!
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