4.11's rpm?
#3
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Keep in mind that the factory tach usually reads 100-150rpm lower than actual.
4.11's in 6th gear @ 70mph should come in at 1800-1900rpm, your cluster might read 1700-1800.
3.73's in 6th @ 70 should come in around 1700 rpm, of course the cluster might read as 1600.
This is given with the average size of tire in the rear which is 25.6" in diameter.
4.11's in 6th gear @ 70mph should come in at 1800-1900rpm, your cluster might read 1700-1800.
3.73's in 6th @ 70 should come in around 1700 rpm, of course the cluster might read as 1600.
This is given with the average size of tire in the rear which is 25.6" in diameter.
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I used this calc here, it's usually right on. It can also be found in the gear section in a sticky.
http://www.f-body.org/gears/
Just enter tire size, then axel ratio, any top rpm you want, then the gear ratios.
M6 in an F-body as it came is this:
1st: 2.66
2nd: 1.78
3rd: 1.30
4th: 1.0
5th: 0.74
6th: 0.50
Stock 4L60-E:
1st: 3.059
2nd: 1.625
3rd: 1.0
4th: 0.696
http://www.f-body.org/gears/
Just enter tire size, then axel ratio, any top rpm you want, then the gear ratios.
M6 in an F-body as it came is this:
1st: 2.66
2nd: 1.78
3rd: 1.30
4th: 1.0
5th: 0.74
6th: 0.50
Stock 4L60-E:
1st: 3.059
2nd: 1.625
3rd: 1.0
4th: 0.696
#7
Internet Mechanic
iTrader: (17)
I used this calc here, it's usually right on. It can also be found in the gear section in a sticky.
http://www.f-body.org/gears/
Just enter tire size, then axel ratio, any top rpm you want, then the gear ratios.
M6 in an F-body as it came is this:
1st: 2.66
2nd: 1.78
3rd: 1.30
4th: 1.0
5th: 0.74
6th: 0.50
Stock 4L60-E:
1st: 3.059
2nd: 1.625
3rd: 1.0
4th: 0.696
http://www.f-body.org/gears/
Just enter tire size, then axel ratio, any top rpm you want, then the gear ratios.
M6 in an F-body as it came is this:
1st: 2.66
2nd: 1.78
3rd: 1.30
4th: 1.0
5th: 0.74
6th: 0.50
Stock 4L60-E:
1st: 3.059
2nd: 1.625
3rd: 1.0
4th: 0.696
I see about 1800-2000 but again stock tachs are off. If you have a programmer reading the PCM, thats the most accurate, or a aftermarket tach.