Mpg

[mikestang63]

My 87 GT Speed Density Auto, all stock gets around 20mpg daily...highway...65-80 mph.

must have 273 rear...at 75 mph i'm at about 2700 rpm's...

sounds more like 3.73's

 

[stykthyn]

At 2.73 I think you would turn a lot lower than that

 

[mikestang63]

At 2.73 I think you would turn a lot lower than that

http://www.angelfire.com/fl/procrastination/rear.html

3.55 gear
2700 rpm
.79 final drive
26" tall tire

75 MPH

I'm thinking he has 3.55's. He's be at like 2100 rpm with 2.73's

 

[mikestang63]

well I'll be damned

http://www.angelfire.com/fl/procrastination/rear.html

2.73 gear
2700 rpm
1.0 final drive
26" tall tire

76MPH

Good thing my AOD has a .67 OD ratio.... i'm at 2400 rpm with 3.73's at 75 mph

 

[Grabbin' Asphalt]

so mix of mostly city and some hwy I got 16-17 miles per gallon. Did some romping etc so i had a little fun. so i imagine for strictly hwy would be low 20's

 

[stykthyn]

Our combos are pretty similar. I would expect all things being equal we will get the same mileage.

 

[Chuckman]

back and forth to work (about 20 miles mostly highway) i average 18-19, both car and truck.....but since the truck takes 87 and the car needs 93.....

 

[Grabbin' Asphalt]

I just dropped from 93 to 89 in this cooler weather, car seems to have responded fine so far.

 

[Grabbin' Asphalt]

Our combos are pretty similar. I would expect all things being equal we will get the same mileage.

Yeah pretty similar for sure, with more romping and such it would definitely be around 14-15mpg like you stated earlier.

 

[Grabbin' Asphalt]

I know this is kind of like asking how much you bench but out of curiosity what king of mileage are you knocking down? I'm getting 14-15 in town and my only real hwy trip was 22-3 mpg.

Was able to retest this week for hwy miles with easy shifting and very minimal horse play, I got 22mpg. That was keeping my tach at 2100rpms mostly.

 

[5LiterWes]

18.5 MPG avg... mostly HWY. I got around 20.5 on a recent road trip. It did a lot better before I put the Vortech on.