What 5th gear ratio do i have?
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Joined: Mar 2011
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From: Starkville
Car: 88 Trans Am
Engine: 350
Transmission: T5
Axle/Gears: Posi
What 5th gear ratio do i have?
i got a new T5 and the 5th gear has a completely different ratio from my last t5.
at 80 MPH freeway speeds in 5th gear i am at 2000 RPM exactly
(I know the speed is correct using GPS)
this is with 3.42 gearing in the rear end.
My old t5 was probably 2600 with the same conditions.
Im just curious on the ratio beacuse now i still get the usual 12 MPG city but now get about 25+ mpg highway. With a cammed and carbed 350
now 100mph is more like 2500 so my top speed should be through the roof
at 80 MPH freeway speeds in 5th gear i am at 2000 RPM exactly
(I know the speed is correct using GPS)
this is with 3.42 gearing in the rear end.
My old t5 was probably 2600 with the same conditions.
Im just curious on the ratio beacuse now i still get the usual 12 MPG city but now get about 25+ mpg highway. With a cammed and carbed 350
now 100mph is more like 2500 so my top speed should be through the roof
Last edited by LostX; Oct 21, 2011 at 01:50 PM.
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