M.P.G Way off from what I thought

379 Views 4 Replies 4 Participants Last post by STANNN, May 18, 2005

Daytona5spd

Discussion Starter · May 17, 2005

Guys, I just got my car running real good I for the longest time I have estimated my MPG to be around 13. After getting the timing set where the car likes it, I filled up my tank and did a check. After 190 miles I filled up again. I figured it up and I am getting 21 MPG!!!!

I was floored! NO way I could be getting that kind of gas mileage. I thought for a second, Maybe someone is stealing gas. No, they would have to be stealing gas and putting it in my tank. And I have been Flogging the living hell out of it. (Well not alot, but enough to notice a drop in gas mileage) I really am getting 21 MPG! I was surprised how good that is with what I have done to my car. An

-2.5 + G-head
-20% injectors (Nothing to control them... Stock Fuel system and computer)
-T3/TO4b Turbo I think it is S-Trim
-2.5in exahust (I know that helps)
-NPR Large intercooler
-Ballence shafts removed (helps)
-TBI CAM
-Ported/polished head
-ported SV and Exahust mani
-Accel 8mm Spiral core.

Maybe alittle more, but that is still alot better than I thought I would get. I thought that the 20% injectors would make me run rich all the time. Do you think that the TO4B Compressor side is helping that out alittle? Bigger turbo flowing more at less PSI?

Steve.

Save

1 - 5 of 5 Posts

Timmay2

· #2 · May 17, 2005

Stock but droppiong in 20% injectors... and gettin on the gas a little? Im surprised youre getting 21mpg....

Im 'tuned' for the +40's and with some mild getting on it occassionaly it musters around 20mpg.. only get 30mpg if its all highway and stays out or in low boost.

Save

Daytona5spd

Discussion Starter · #3 · May 17, 2005

I am too, I am wondering what it will be like when I get the New CAL soon.

Save

minimopar

· #4 · May 17, 2005

I get about 21-22 average with my 3-bar cal, about 75% city vs highway driving. I flog it pretty hard most of the time. I can get 30 or more on long highway trips with the A520 I have in there now. When I had the A568, the mileage was pretty much always 21-22.

Save

STANNN

· #5 · May 18, 2005

I've got 34mpg 8lbs boost and 89 octane. That's driving back and forth to work, 40 mile round trip. 7 miles rural road and 13 interstate. After getting my boost situation straighted out...boosting to 18lbs and running 93 octane- 32 mpg. Sure, if I flog it a lot I don't get that but mileage is pretty darn good. Lebaron convert 2.5 555, mildly ported swirl head, back-cut valves, ported exhaust,T2 Garrett w/2.5 swingvalve, 3" w/high-flow cat, no muffler, Supra FMIC, 3 bar w/+40's, and TU cal.

Save

1 - 5 of 5 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month