Gears and RPM's

[H What 4.6]

As one of my modifications this winter im looking to do gears. I beleive Im going to do 3.73's but i just wanna know what highway RPM'S would be compared to 4.10's if say you were doing 70mph. Ive got a 97 GT 5-Speed.

 

[ponysarepretty]

you know a simple way to figure it out... all you need is a calculator

your RPM will be:
(current RPM)*(new gear ratio)/(old gear ratio)

so it would be
(RPM) * 4.10/3.27 diff from 3.27 to 4.1
(RPM) * 4.10/3.73 diff from 3.73 to 4.1
(RPM) * 3.73/3.27 diff from 3.27 to 4.1

 

[MrStevie]

i've got 4.30's with a 3650 tranny, it's been awhile since i've really paid attention to the rpm's but i'mj pretty sure i'm right at 3,000 in 5th gear doing 70

 

[HoustonGT]

i've got 4.30's with a 3650 tranny, it's been awhile since i've really paid attention to the rpm's but i'mj pretty sure i'm right at 3,000 in 5th gear doing 70

Pffftt...don't fear the gear... GO 4.56's!!!

 

['03GTinFLA]

I cruise between 80-90mph on the highway and my rpms are around 2600-3000. Something like that.
Basically if you see a supercharger in your future = 3:73's
If you drive lots of highway = 3:73's
If you want a big kick in the SOTP meter = 4:10's
just my .02

 

[White Stang]

373's

 

[03ghoststang]

[QUOTE='03GTinFLA]I cruise between 80-90mph on the highway and my rpms are around 2600-3000. Something like that.
Basically if you see a supercharger in your future = 3:73's
If you drive lots of highway = 3:73's
If you want a big kick in the SOTP meter = 4:10's
just my .02[/QUOTE]


:Word: pretty much what he said