MPG increase with Stage 2?

[the mike]

Some of you know I am a stage 2(COBB) car. I have noticed a marked INCREASE in my fuel economy. I am talking like 50 miles per tank, almost 25%.

Has anyone else seen an increase. I don't drive any different, in fact I might be harder on the car now that it's faster. Either way, it's all good with me.

[WRXD]

mine, if anything, got a tad worse. the way I drive I get like 18-19mpg.

[the mike]

I do a bunch more driving, mostly highway now which happened around the same time. Could be it...?

I was averaging about 200-210 to a tank(full to less than a quarter). Now I am around 250-260, sometimes more.

[ScoobyNubieToo!]

When I was stock I got 22MPG....I now get 17-18 MPG

[TROLL]

switching to summer gas might have helped? i dunno but i'm seeing about 2-3 mpg better the last 4 tanks or so... i used to be 19-21 every tank, now its been like 23-24 mpg which i have no complaints about.

[the mike]

I guess I'll chalk it up to driving habits then, it seems the consensus is that MPG goes down....

Anyone else?

[ej20wrx123]

after my custom tune my mpg went up big time.....but when i was on a OTS map my mpg were slighly worse then stock.

[Orbit]

i noticed that my mpg went up after I got the AP as well.
maybe a result of running leaner?

[S4toSTI]

Mine got a tad better but i drive like a moron all the time and on 13 gallons i never get more then 240miles, the average is about 220.

[JoeScooby]

I have been getting upwards of 230 miles on a tank, granted I have stopped driving like an ass and trying not to boost as much. Yesterday I was at 1/2 tank and my milage was sitting a little above 200. After that my needle shot to empty with an additional 40 miles added.

[dubrx]

AP adds a bit but it's probably just the HW driving. I went from Princeton to Pittsburgh a week ago and got 360 miles, pulled into my buddy's driveway, and the gas light still wasn't on...but I didn't go under 70 mph for 5 hours (and a lot faster for most of it... which I don't condone :wink: ). I usually average about 220-250 when doing the local driving.

[igo4bmx]

what the the product do? does it lean you out? Just curious

I know my tuner gets over 50 mpg on his stock honda civic hatchback cuz he leaned out his car enough, and makes more power too ;)

but nox output is pretty high, but he doesn't have to deal with emissions.

[Jeramie]

what the the product do? does it lean you out? Just curious

I know my tuner gets over 50 mpg on his stock honda civic hatchback cuz he leaned out his car enough, and makes more power too ;)

but nox output is pretty high, but he doesn't have to deal with emissions.


Sounds like lean burn, when in ol fueling under very light loads you can actually run and A/F mixture higher at 14.7:1 (more like 17:1 if I rember correctly).

while you can do this to get the gas mileage up it isn't exactly what you would call performance oriented.

The Access port with it's OTS maps will change timming, move boost targets up and lean the car out slightly (They still leave it quite rich since it is an OTS map and not a custom tune, they don't want to blowing peoples cars up). Once you have the access port, you can have a protuner create a map that is designed for your car (hence it can be leaner).

All in all, you should really be worried about performance . . .or gas mileage, the two generaly don't go together.

[Jeramie]

"Built and Boosted '00 Civic" - Nice header!

[UnderPoweredRS]

i never let my tank go under 1/4 and i get around 260-270mile per tank. but last week I did no extra driving and no extra highway time and I got 315 out of it :-o but it's back down to 255 now :-( Whats with that?