Logically yes, but there are other factors involved, including needing less throttle to acheive the same acceleration (actually uses less gas).

I used to keep a pretty detailed log of my mileage. Every tank was charted. It was a definite solid 2 mpg I gained when I did the Fastman, and it was like that on every tank I charted after the install until I started doing other mods. Only other mod I had at the time was an Airaid CAI, which had been on for some time with no real noticable performance or mpg change.

FYI, the best mileage I ever saw through the process of building my truck was 16 mpg. Nowadays, I get about 10-12 city, and 13-14 highway with the mods I have.

 

Im thinking about doin the 52 fastman TB and either that round air filter or a FIPK I just wanna see how the round performs during summer.

Perhaps headers or catback if I got the money but I doubt it seeing how I have to buy a laptop for college.

 

What engine do you have?

 

If you have the 5.2 you need a 50mm Fastman. If you have the 5.9 you need the 52mm.

You are right about the cowl induction on the NASCAR cars. I was referring to a UMP Dirt Super Late Model.......
Aluminum engine making over 800hp in a 2400lb car on dirt....
They use a round open aircleaner setup. Only difference between that and the ones we have been putting on our trucks is that due to the dirt and mud we put a filter like panty hose over the outside to "prefilter" the large narly stuff out.......

 

That's pretty sweet. Open element won't matter as much on a carb. At 800hp what the hell. Put anything on there. Even if a different filter would make 20hp (a stretch), so you run 820 instead of 800... on dirt.

Is that what you do for a living? If so, wanna trade jobs

 

Its not summer yet lets wait and see what happens with these... until i see some 1 get 16 mpg city like i do i keep the stock on...with A/C running 15 city.....

 

No, unfortunately. I do have a real job. I help this guy (pic below) out any time we are both at the same track. The older I get the more other things I have to do, so I can't make a full time commitment to a team. I can show up and play around on this car about any time I want.

I got 13.3 mpg on my last tank of gas. Best I've ever averaged around home here......



[IMG]local://upfiles/19461/621EACE781F24EA7A02C0587D6079FBE.jpg[/IMG]

 

anyone have the partnumber for the K&N round air filter replacementfor the paper filter in the mopar performance round air cleaner? my paper filter that came with the round ait cleaner is getting dirty and time to reaplce it.. thanks!

 

There is not an exact K&N replacement size. The filter that comes with the kit is 12.75"x2.75". K&N makes a 13", which is too big, I know I tried it. And they make a 12.50", which does work, theres some guys running them over on another forum.

12.50" x 2.75" = K&N part # 1530
12.50" x 2.89" = K&N part # 1535

 

You suck. Wtf do you get on the highway. You are now official poster boy for Why Horespower Doesn't Matter. Your timing is good too. My bud up at the local gas and repair saysregular willhit 3/gallon within two weeks.