1997 SVT Cobra gear ratio?

Question

I bought a '97 SVT back in April I knew the car had some aftermarket work done to it (exhaust and intake). Otherwise the guy i bought it from was kinda clueless about the car. I was comparing mine to a friends stock '98 SVT and noticed that highway cruising I was running about 800 RPM higher (in 5th gear 75 MPH i am running 2850RPM). We are thinking it's 4.11's or 4.30's.

I was wondering if anyone had a good gear ratio calculator I could use to figure it out?

Probably going to buy an SCT chip to do some tune up on it and I think I need ratio info to put in the SCT tuner.

Answer 1

when you use the calculator, you have to figure in the od ratio or use 4th gear to get your miles and rpm, then use 1:1 on the calculator...

Answer 2

That sounds like my mustang, but I have an 07.  at that speed tho you are most likely running 4.10's.  That is what I have in my car and that is about the RPM's that the engine is at when I travel at that speed

Answer 3

sounds like 4.11's maybe 3:73's but thats a lil high rpm's for 3:73's in OD

Answer 4

http://www.corral.net/tech/gearcalc.html

Answer 5

Your best bet is to crack open the cover and check the numbers. There's a good chance the previous owner beat it on more than one occasion. (I would have!) That will be important infor mation when you start reprogramming it,and a gear oil change is always a good idea.

Oil and gasket=cheap

Axles,bearings,and gears=not cheap.

Post the numbers and one of us should be able to help. Good luck!