fuel milage

[justwhisen]

so Ive been tracking fuel milage here and there with different plugs, gaps, filters etc.
I noticed that with a paper filter and the stock intake I get anywhere from 29-33 mpg on the highway, and with streets FWI and a specture filter it droped to a really constitant 27 mpg.
this is just something I noticed and thought I would share. and so far has been the most dramatic change in mpg for me.

 

[Bio248]

colder air = less mileage.

HAI = best mileage intake.

 

[TDCRacing]

colder air = less mileage.

HAI = best mileage intake.

I will second what Nick said.


Although some will argue that with cold air is more dense and you can make more power wich means less fuel is used. And I will agree to that too. But under normal driving circumstances I think you will still see less MPG's with a cold air intake. And that's has been proven.

 

[justwhisen]

I knew that there would be a drop, but the constistacy really surprised the crap outta me.

 

[Iron Indian]

Try an open cone, see what happens.

I can still get 30 MPG on my setup, even with the 3.29s and the 3000 stall...

 

[blueguy]

^^ Really? You must not drive much do you

 

[rocafella2032]

im getting 16.4 city with my stock 2003 gt.. im not sure what to replace.

 

[Iron Indian]

^^ Really? You must not drive much do you

LOL, Thats what I got to and from Branson. Although that stretch on the way back I ran 150 mph, gas mileage did suffer a little bit. But yeah, I was around 29-30 MPG even speeding a bit.

Compared to my run up the ther previous time with my stock tranny, I only noticed about 1-2 MPG difference.

Both years I left my house with a full tank of gas and when I got into Branson I filled up and the fuel light wasn't even on yet although the DIC was showing LOW. Not bad at all I don't think considering i've done 0 tuning for gas mileage specifically...

 

[justwhisen]

alright I need to get a tune!!!!!
any sugestions?
I am not spending a grand on a HP pro just to play with my ecm peramiters.

 

[JoshMcMadMac]

alright I need to get a tune!!!!!
any sugestions?
I am not spending a grand on a HP pro just to play with my ecm peramiters.

HPTuner is $500, not $1000. And if you think it is just "playing" with ECM parameters, then you should not be tuning anyway. Go with Overkill.

 

[justwhisen]

yes it is just playing. that is what hot rodding is all about.
and when I went to HPs site the price was 800 and some change for the pro version.
unless I can do all I need to with the other verison.