lol gas milage improvment with new engine...

[Foxfan88]

got my gas guage fixed so it made it alot easier to track the gas. I filled her up and went about halfway. filled her back up and figured the milage with the new engine. It read 16.2, i was like damn. This is mostly highway driving at 55 to and from work. My speedo gear is a bit off so it reads a little faster than i am actually going. so i would say a good 15 Mpg from this beast. beats the old 10 mpg i was getting with the stock engine...

what kind of milage u guys getting?

 

[795.0pacecar]

I got 20mpg before the heads, intake, and RRs, and now I get 23-24 with a combo of highway and city driving.

 

[ryan218]

bought 17 city 21 or so highway

 

[carbed87]

when i had my 93 (gt-40 int, e-cam, lots of other little bolt ons) i got as good as 25mpg on the highway, and with the t/a i get 21mpg with the supercharger.

 

[mob]

damn man, you can do better then that. I get 17mpg, I was getting 14 before, I did k&n filter, fuel filter (when I took out my old fuel filter the fuel coming out of it going to the engine was black) Fuel injector cleaner you put in your gas tank, seafoam, and clean iac and tb and i went to 17mpg, 3mpg all in a days work, the bcam isnt helping us, but you can get some more out of it if you havent done that stuff, I go through about 20 bucks every 6 days.

 

[sunil6784]

Plugs and wires will help a lot too if they haven't been changed in a while.

I get 17 city, 23 or so highway.

If I do 80 on the highway, my mileage drops to about 21, 60-65, I get about 24. I usually go around 70.

 

[1SLO306]

bought 17 city 21 or so highway

which cities and highways did u buy

 

[CDSMA9]

I'm getting 21-24 combined with city and highway.

 

[vristang]

Please say that you didn't "calculate" miles per gallon based on a reading from the stock gauge.

We need to figure the amount of fuel used based on the fuel added at the next fill-up.

The stock gauges are complete crap.
When my GT hits the red, I have 2 gallons in the tank.
When my LX hits the red, I have 5 gallons in the tank.

The fuel gauges are not "calibrated" so they cannot be used for calculations.

Also, to reduce the amount of error in your "mpg test" increase your driving cycle. The larger your data sample (both fuel and miles traveled) the more accurate your MPG numbers will be.

jason

 

[mob]

Please say that you didn't "calculate" miles per gallon based on a reading from the stock gauge.

We need to figure the amount of fuel used based on the fuel added at the next fill-up.

The stock gauges are complete crap.
When my GT hits the red, I have 2 gallons in the tank.
When my LX hits the red, I have 5 gallons in the tank.

The fuel gauges are not "calibrated" so they cannot be used for calculations.

Also, to reduce the amount of error in your "mpg test" increase your driving cycle. The larger your data sample (both fuel and miles traveled) the more accurate your MPG numbers will be.

jason

Yea I fill up, reset trip gauge, then I go till its at the botom then i fill up again, and see exactly how many miles I used, I dont calculate my mileage very often because its VERY rare that I have enough money to fill up my tank, less two times in a row.

 

[mac16]

haha you sound just like me mob. i never have money to fill my damn tank up either, sucks being young.

 

[grey5.0beast]

yup, maybe 5- 10 bucks here and there... good thing i have a job now...

But mostly I make friend spay for my gas, or give me food for givin them rides

 

[88 Fox GT]

I usually run mine to where the gauge says empty (with fuel light on) and fill it up. Only takes 11-12 gallons at the most and I can get about 250 miles on those 11-12 gallons until it goes back to empty again. If I went though a WHOLE tank without going WOT at all, I could probably get 280 miles out of those 11-12 gallons, but that's never been done. lol

 

[stykthyn]

whoa, wait a minute,,we have a fuel light??
I think mine must be broken

 

[Foxfan88]

Please say that you didn't "calculate" miles per gallon based on a reading from the stock gauge.

We need to figure the amount of fuel used based on the fuel added at the next fill-up.

The stock gauges are complete crap.
When my GT hits the red, I have 2 gallons in the tank.
When my LX hits the red, I have 5 gallons in the tank.

The fuel gauges are not "calibrated" so they cannot be used for calculations.

Also, to reduce the amount of error in your "mpg test" increase your driving cycle. The larger your data sample (both fuel and miles traveled) the more accurate your MPG numbers will be.

jason

I didnt use the guage for calculations, i just used it to give me a ballpark of how much gas i have. when i calculated i filled up and tripped the odometer ran the tank a little more than half way down (didnt want to spend a big sum refilling, i figured a half tank would give me a good ballpark of milage). Filled up the tank, took the miles i had racked up on the odometer, and divided it by the gallons i had just purchased to fill the car up.

i went about 114 miles, and when i filled up it took 7 gallons.

114 divided by 7 is 16.2

and now that i think about it i was wrong about my speedo...

I was mistaken, i have a 4.10 speedo gear and my speedo reads slower than i am actually going so i actually went farther than 114 miles when i calculated.

so i may be getting around 17 or a little more i think. which isnt too bad for a cammed, heads and intake, and bolt ons and gears...

 

[1SLO306]

doesnt lower gears make the speedo read faster. mine does and so does my buddy Iroc-z

 

[Foxfan88]

i have 3.90s and am using the 4.10 speedo gear, it reads slower.

when at the real 65 mph according to rpms. the speedo reads like 57-59 mph and the faster you go the more it gets off.

 

[1SLO306]

oh i get it

 

[Darkwriter77]

I average 16 MPG at worst in city with a leadfoot, and usually right at 20.5 on the highway with a little stop-and-go in the mornings. Best to date was 24 MPG on the way from Sedona to Mesa ... but that's a totally downhill drive, so I kinda had an unfair bit of help in that...