beastzilla02

if u read my gear post i was asking if i dont know if i have gears in my 02 gt bcuz i just bought it..but today i found out when i cruise at 85mph im a 2500 rpm..does that sound like it has different gears ?

lizzyfan

Try this:
http://tchracing.com/tech/gearcalc.p...selectedgear=2

beastzilla02

i dont get that thing..it keeps saying at 85 mph im at 4000 rpm..but i was at 2500 rpm..

sprostang

You have stock gears. I`m at about3000 rpm`s at 80 with 4.10`s

beastzilla02

ya but my rear axle thing has a different cover..and at 80 or 90 i can feel my car jump and then it slows down after 90..it still pulls butnot as hard as it does from 0-80

SpecterGT260

the rpm's dont lie. if u have a different cover then maybe someone replaced the stock gears at some point with the same ratio. if the car wasnt owned by a performance enthusiast that isnt so hard to believe

beastzilla02

ya but im figuring that it had to be cuz there was cai and a air filter in there when i bought it..normal person doesnt buy that lol

sprostang

To know what gears you have for sure.... Jack up the car, make a mark on the driveshaft, spin tire one revolution. Count how many times the driveshaft turns.
3 1/4 turns= 3.27`s
3 1/2 turns= 3.55`s
3 3/4 turns= 3.73`s
4 turns= 4.10`s

Colorado_Mustang

85 mph, 2500 rpm, 5th gear (manual)...you have 3.27's, or stock gears. 4.10's would be a little over 3100 rpm at 85.

eventer289

You have stock gears. At 70 with my stock gears I turned 1800 RPM.2500 at 85sounds about right with stock gears. A simple test is to see where you max out in 1st or second gear.

With stock gears I redlined at 67-69 mph in 2nd gear. In 1st I topped out at around 40.