cw383

iTrader: (6)

Granted fuel economy isnt typically whats on most peoples mind when doing the swap, as its mostly on the higher power builds, I'm just curious if anything changed and if the Saab or Regal trans was used. I understand there would be more parasitic loss, but the potential for higher gearing vs an existing 4.05 or 4.45 might more then make up for it. In my case, 4.45 gears with 3" exhaust at highway speeds is slowly making me deaf lol. And extra gear to drop into would be a godsend. I did the math, a Saab or Regal trans would drop my RPM 600 or 800 rpm respectively

Snail_SS

iTrader: (3)

Once I have everything set up I'll let you know mine will be a regal trans

armcclure

iTrader: (2)

regal trans in my car, i was getting 25+ highway on e85 as long as i stayed under 75mph.

cw383

iTrader: (6)

How was it before the swap?

Snail_SS

iTrader: (3)

I was getting about 280-300 miles per tank (e47) before let see how much it changes

zeeky420

Yes you will get better mileage on f40 but I dont keep track it's to hard to do with the Saab transmission because your odometer will same read right even with speedo being correct

cw383

iTrader: (6)

Well thats weird, how does that work?

zeeky420

It kinda sucks but every real 1 mile is like almost a half mile