Rhin

I am in the middle of an M6 LS1 conversion on a '95 Trans Am. I have Moser 12 bolt to use (3.73), but cannot justify using it during the next year. My fiance' lives about 200 miles away and i need to squeeze the most mileage from it to be able to visit her bi-monthly; of course, once we are living together, the 2.73 will get dropped for the Moser.

My daily driver '98 with an A4 has offset t-tops and the offset is growing worse which is both killing my mileage and my tires. The '95 will become my daily driver once the 98 is stripped....

My main question is, will a 2.73 even work with an M6 or will the torque output be too low to be functional?

Thanks in advance

Ryans99ls1

iTrader: (16)

it will work fine. did the swap my self also. gears will just seem annoyingly long

Ericbigmac83

iTrader: (19)

Don't plan on using 6th gear

Ericbigmac83

iTrader: (19)

Just played with a gear calculator, you'll be better off and get better gas mileage with 3.73's cause you'll be able to use 6th gear. with 2.73's you'd be at 1700 at 65mph in 5th, 3.73 would be 1600 at 65mph in 6th

Ericbigmac83

iTrader: (19)

With 2.73s 3.73's

RPM 5th 6th 5th 6th
1300 50 74 36 54
1400 54 79 39 58
1500 57 85 42 62
1600 61 91 45 66
1700 65 96 48 71
1800 69 102 50 75
1900 73 108 53 79
2000 77 113 56 83

CavPat

^ I agree. 3.73's and 6th gear FTW.

Ericbigmac83

iTrader: (19)

Gear Calc

http://www.pszweb.com/car/gears.htm

Irocem99

The 6 spd is not geared for 2:73's..You will get worse gas mileage. Just trying to pull in 1st is going to get you worse mileage alone..

Daez

I dunno about worse mileage. really depends how fast you are traveling.. I have 3.23's in my 6spd atm and I can't use 6th gear unless I'm speeding. but I get 32ish mpg going 75-80 which I think is pretty damn impressive. 2.73 is just too low though man.

Damian

iTrader: (89)

2:73's is too low, and it'll wear the hell out of the clutch on take offs too. I'd do at least a 3:42, bare minimum. Even a 3:42 really isn't enough gear to get a 3500+ lb F-body moving around.

tici

iTrader: (1)

After my tranny swap I drove for a while with the old 2.73... not too bad. Just difficult to move on a ramp

01ssreda4

iTrader: (96)

i agree here. reinventing the wheel doesn't make it better.

Dirty 30

iTrader: (96)

So wouldnt u be in 6th gear at 65mph around 1,000 rpm??? i dont see how 3.73's give better gas mileage than 2.73's

Revelation Z28

iTrader: (10)

lugging the engine like that for long distances is worse than loosing a mpg or 2.

Dirty 30

iTrader: (96)

oh i understand now
I had 3.23's and M6 so i was trying to see what the differences in gas mileage are.