A newbie's question about performance.

[yucatec]

Dear Gurus,
My 5.0 was rebuilt by a NASCAR mechanic to specs and my enormous wagon gets 21 mpg at 5 mph over the speed limit on Interstates. Acceleration is okay but could be better. I hate stopping for gas. Are there any performance mods that don't lower mileage?
Donald McCaig

[Grand Marquis GT]

Dual exhaust and headers usually help....

Or supercharge it

[85crownHPP]

more power comes from more fuel burned.

[Lincolnmania]

donald what do you have? fuel injection? carb?
3.55 or 3.73 gears help alot
timing adjustments help
headers and larger exhaust help
i get 22 mpg in my lincoln on the interstates at 80 mph.....read my sig for mods
scott

[Pirate]

Power through efficiency comes to mind...make sure there is a roller camshaft in there, along with full roller rockers....synthetic oil....drop the thermostat to a 180 degree unit...and toss the stock lockup convertor.

[Mercracer]

...and toss the stock lockup convertor.

He said without lowering mileage

[Pirate]

...and toss the stock lockup convertor.

He said without lowering mileage

Believe it or not, I get better mileage with the stall convertor....and have done so with 3 of my last CV wagons....2-3 mpg better around town.

[Mercracer]

Sounds like a heavy foot around town

[Pirate]

Sounds like a heavy foot around town

And there is a problem with that?

[Mercracer]

And there is a problem with that?

No problem for someone not concerned with fuel economy

[Pirate]

And fuel economy is a concern of some naming themselves "mercracer"?

Do you even have the slightest clue of WHY the stall convertor might increase mileage, even with my foot out of it?
I must be really stupid....hmmm...I put in a better convertor, I get to get better mileage, AND I get to heavy foot it too? I think the term is" cake and eat it, too!".....

You must really be threatened by me... :coocoo: