C4 and gears

[SlowJoe]

I am getting ready to put a c4 in my car. It has 4.10s. Are they to low? I do run 28 tall tires

[Craig K.]

really depends on were your red line is if your talking about drag racing.
Ideally you cross the line in top gear at red line - or this is what I always went after.

If your talking about daily driving the car with some freeway use, even with a mod motor it will be running some good rpm.

I think we have an rpm calculator in the Faq's section you can take a look there or I am sure there are some you can find on line.
C4 final gear should be 1:1

[QWKSNKE]

Put your car in 4th gear and drive down the road. That is what it will be like with a C4

[rtusnake]

Why are you doing a c4? I would do the 4r70 and have overdrive. Believe you will be ok on your gear setup with a c4 though

[03slobra]

my car turns 7300 rpm with the c4 in the 1/4 with 4.10s

[SlowJoe]

Tryed in 4th and its like 3300 rpm at 55 mph. It would love the gas! Dont know

[JUICED SVT]

Why are you doing a c4? I would do the 4r70 and have overdrive.


x2 on the 4r70w and add a good stall

[coupe]

I recommend 3.55 max for a 3speed auto that's also street/highway driven.