BriancWS6

iTrader: (18)

Hey I have a 4l60e and the 3.23s. At 85mph I'm right at 2500rpm. I have been entertaining the thought of a M6 swap, and would install either 3.73s or 4.10s. What would my rpm be at 85mph in 6th with the 3.73s and the 4.10s? Thanks alot.

Keenov

iTrader: (5)

You are breaking the speed limit

70mph is around 2k for me with 4.10's

I don't think 85 is around 2500rpms. Maybe 2200rmps.

black00TA

iTrader: (3)

73mph at 2k with 4.10's

BriancWS6

iTrader: (18)

Thanks fellas, so I would still get as good or better mileage than I do now, sounds good to me.

black00TA

iTrader: (3)

gas mileage is more figured by your driving style. but of course 4.10's wont be as good as 3.42 on the highway.

BriancWS6

iTrader: (18)

Last weekend I took a 350 mile round trip on the parkway and averaged about 85mph. I got between 22-23 mpg. So I was seeing if a 6spd with the steep gears would be at a higher cruising rpm or not. When it comes to just playing around town, I could care less about the gas mileage, just have a little fun Thanks for the responses.

distortion_69

iTrader: (20)

I use 4.30's.. I do 70 at 2000 with 4.30's. So I think you guys should be a little higher than that.. however, this is with 275/40/17 tires.

Peace,
Josh

mike c.

iTrader: (1)

with my 3.73's at 80mph i was on 2,000rpm's. with my 4.11's at 70mph i'm on 1,800rpm's. i like the 4.11's way better then the 3.73's in every area and with my 6,850rev i still top at 160mph in 5th gear.