uedlose

we use to get 20 all the time when the car was near stock. as long as we didnt run the crap out of it.

yurizx6r

Well that's good to know. I just wanted to make sure because the only foxbody guys that I know of around me have turbos in it, and I'm not there yet. Besides that, my best friend has a 91 Eagle Talon tsi (AWD turbo), so to say he knows much about foxbodys is a stretch. He helped me build this car, but certain things like this of course he would not know.

88 orangepeel notch

When I first got my notch, with the mods in my sig, and still had the AOD, I got a best of 28 hwy. That was corrected mpg because my speedo was off a little of from the gears, according to the GPS. Now with the T5, I can only manage 24-25 hwy. My car is in tune, and my wideband shows it's about the same ratios your pulling. I'm a touch leaner than you at WOT with 13.0.

Driving technique is "moderate" with some "old fart" mixed in there.

yurizx6r

That is really good to know. I feel a lot better. I didn't think I was running lean or anything like that. I realize it's a 21 year old V8, but I didn't think with the condition of the motor and the weight of the car it was that crazy to get 20MPG's. When I first got the car I was getting 13-15 because the computer was bad and the motor needed a good clean and tune up. What did surprise me a little was even after the Trick Flow manifold it didn't really go down at all. I'm curious to see how much it goes down if and when I put Trick Flow or AFR heads in though........ any thoughts or experience?

88 orangepeel notch

I've never dealt with aftermarket heads, but anytime you make an engine more efficient, mpg can only go up. Keep us informed on how it turns out.

reldla1996

When I put TF TW heads (and cobra intake) on my 89, my gas mileage went up by about 1 mpg. 1.7 rockers had earlier cost me about 1 mpg, so in the end I came out even.

JPJP

I am getting around 19 MPG w/ the same 3.08:1 rear as you have w/ every day driving. It is supercharged . Yes, I get on it once in a while too. I have hit over 20 with my daily commute but haven't yet this year.