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Old 09-30-2006   #1
Thor06
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Re: TRE - Taller 5th Gear

Going from 3000 to 2760 would never yeild 7 mpg increase. I cannot imagine that it would really affect your milage more than 1 mpg, thats only a 250 rpm difference at 3000 rpms. Completely not worth it IMO.
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Old 09-30-2006   #2
Andrew7dg
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Re: TRE - Taller 5th Gear

Quote:
Originally Posted by Thor06
Going from 3000 to 2760 would never yeild 7 mpg increase. I cannot imagine that it would really affect your milage more than 1 mpg, thats only a 250 rpm difference at 3000 rpms. Completely not worth it IMO.
I think it depends on how the car is setup. If it is made for high revs and dogs in the lower RPM then no, but if it is a 2.3L stroker then a taller gear would be ideal.
It also wouldn't be worth it if the car is making stock HP i would think. I would think the engineers would have put the 5th gear in the most efficient range. In this club though most cars are making good HP so that would throw off the calculations.

I would love to see a data log of a before and after the gear installation to see how the car is running. To measure by tank there are a lot of variables. I have had my car running in the 27 all the way down to 21 on highway depending how I am driving
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