What is everyone getting here on a gallon of gas, If i drive normal during the week i can hardly pull 15 out of a gallon with my mods! check the sig! What do you think
Aj

LAST CHANCE TO READ THE FORUM RULES ON POSTING PICS. THIS IS GETTING OLD Kevin G Moderator TPI

 

I get around 14mpg with my 383 stroker and a heavy foot on 93oct which my enginge requires. I was also wondering what everyone gets.

 

In town I get 15-18,I clocked it going to kansas city at 23 It's a 350 tpi

 

when I went on the hot rod powet tour I was gettingclose to 25mpg. pretty good, in town I usally get 15ish

 

I usually get 22-23 mpg from mostly freeway and a little city driving. Afew months ago on a trip from LA to Vegas I got 26.6 going and 27.7 on the return, pretty good I think.

 

On the '92 I average 19-20, and 24-25 on the highway.
The '88 would average 16-17 and hit 20-21 on the highway with all its mods.

 

What gas should i be running, i usually switch between 89 and 93, should i run 87?
Aj

 

89 IROC 350 TPI, 16-18 town and 24-26 Highway all on 87 octane.

Ryan

 

'88 Iroc: 5.7L/A4/2.77= @ 25 HWY
'91 RS: 5.0L/A4/2.73=27 HWY

Last I checked...

Ed

 

I get about 22 mph city, sounds crazy, but I do haven't gone on the HWY with it yet.

 

Well i am getting 14.7 and 15 if i am lucking around the city without romping on it, just driving normal with my mods, what could it be, I am going to try a new O2 sensor..what could it be?
Aj

help what should i check on

 

With my Trick Flow 23* and Mini-Ram set-up I get 15 MPG in town and 23 MPG on the highway. I love getting better gas mileage than a Bran new Ford Explorer with a 4.0!!

 

I get about 14mpg around town from the 5.0 TPI in my 3600 lb. Monte SS. I built this car to drive hard, and I do. I did hit almost 22 mpg on the highway last summer going to the Monte Carlo Nationals in OH. That was cruising at 65mph with a full trunk, 2 friends in the car, and the AC set on "freeze your *** off". Unloaded, I could probably hit close to 23mpg if I babied it on the highway.

 

I get around 24 on highway and 15-18 in town depending on how I drive it. Its on a 355 TPI. Slightly modded. Thats also with 2.73 gears out back.

 

im gettin around 18-20 mpg rompin it hard! thats city-hwy., dosen't really matter.

1987 Pontiac Firebird Formula WS6
TPI 305, T5 manual, 245/ZR50-16 Pirellis all around, gutted MAF, performed fan mod (works really, really well!), re-routed coolant hose OUT of TB, installed 180 degree thermo (broke bolt off in intake-anyone got a used aftermarket one for a decent price?!)
"A Mustang a day keeps the junkyard away!"

 

guys...what should i be checking for to improve my gas milages, filled up yesterday, about 14.5 mpg all city no romping on it
Aj

 

Mess around with your fuel pressure a little. And it wouldn't hurt to take a look at the o2 sensor. Tires and tire pressure make a little difference. Also see if your getting any drag from the brakes. If you have drums make sure they are not adjusted to tight. Basically just make sure your tires are free wheeling. Also wouldn't hurt to pull a spark plug or two to see how they are burning. Few other things to check too, just can't think of them off hand.

 

roughly 20mpg per tank. mostly highway driving but that is city driving mixed in too.

This is in 87 L98 IROC with headers and full exhaust

 

If I drive like my mom I get good milage.

If I drive like me I get NO milage.

On weekends when she comes out of storage I will put
$30 to $50 worth of gas through her in two days.

I hate the way my mom drives.

 

The camaro gets about 19mpg on the highway, and that's with a cam, heads, full exhaust, stock upper TPI, 700R4, and 3.73 gears. I'm hoping to do a little better when I get the T56 installed.

 

little over 20 on highway and around 17 when i beat on it

 

I remember the one time i went on a trip up to San Franisco, my GTA got 255 miles on 11 gallons of gas. Works out to almost 24 mpg. Never that kind of gas mileage since. Gets like 12-14 mpg now in mixed driving (mostly city) and i still can't figure out why. My corvette got about 18-21 mpg on average when it had the stock L98 (putting a new motor in thats slightly un-stock ). It don't matter no more because i have a honda CRX as my daily beater (35 mpg).