Cammed guys what u'r gas milage?

VT stage 2's here..

My last tank with 4.10's was horrible. I had just gotten the 4.10's in and I couldn't stay out of the throttle and managed a whole 13.7mpg

But on this tank, i've stayed out of it for the most part and i'm almost to a half tank with 120miles

With the 3.73's and the same cammed/bolt-on/LT's setup I could get 18-19mpg in the city and 20-22mpg on the highway (cruising at 80mph)

best milage that i had with my VT stage 1's was 29mpg

21-25 it seems...gone a best of 27MPG.

FOXCOUPE said:

My 99GT with bolt-ons and Comp 262ah's get 300k's per tank with mixed driving (street stop n'go and highway, full throttle sprints and normal acceleration). I havent tried to granny drive it through the whole tank yet.

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Whats normal acceleration again

scupking said:

Whats normal acceleration again

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ima half to look that one up too, i think it means the average throttle postion between flooring it and sitting at a red light

I do mostly highway driveing to go work and with full tank I get about 200-210 miles

yea i think i get about 200 to the tank, but i drive it shifting at 3000 rmps in 1st 2nd and 3rd. how is it possible that you guys manage 27 mpg when they come made to get 18mpg city and 26 city? all highway driving?

VT II's here....this tank I averaged a whopping 16mpg.....ugh.

Comp 262AH, headers, catted X pipe, 3.73's, P-51, highway milage is 29 miles per imperial gallon. Stock was 30.

-Matthew

ADRENLN said:

yea i think i get about 200 to the tank, but i drive it shifting at 3000 rmps in 1st 2nd and 3rd. how is it possible that you guys manage 27 mpg when they come made to get 18mpg city and 26 city? all highway driving?

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I got 27 on the way to GA 100% highway @ 74ish (night...no A/C) . That was before the tune and the car was running very lean.

At night on the way back after the tune, I got 25MPG with mostly highway @ 74ish....but had to go through a few towns with readlights and stuff, so that screwed my #s.
And durring the day coming back I had to use the A/C and also got like 25MPG, but with 100% highway driving.

Reciently got 25MPG with no A/C (spring time I think) going to and from work shifting @ 2K. I have quite a few redlights too, and had to pass through our small town a total of around 4 times on that tank...but taking the VERY long (highway) way home when I first filled up, helped I think.

I dont understand how people are managing nearly 30mpg either. What method are you all using to measure the mpg?

I get 17-18 in my car even on the highway (no major mods other than 4.10s)

Write down the milage when I fill up (say 50,000)

Drive until a 1/4 tank and go to the same gas station and filling up as with the first time to the nearest 25 cents usually.

Take my reciept in the car and bust out the cell phone.
So no I have say 50,250 miles...minus that from what I had when I started and that gives me 250 miles traveled.
Then I take that and divide it by the gallons it took to fill up...say 9.875

Now 250/9.875= 25.31 MPG.

triggz said:

I dont understand how people are managing nearly 30mpg either. What method are you all using to measure the mpg?

I get 17-18 in my car even on the highway (no major mods other than 4.10s)

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Yeah, i can barely get 20 with 3:73's

foncarelli said:

Yeah, i can barely get 20 with 3:73's

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Same here. I have full intake and exhaust mods, 3.73's, plus a Xcal2 mail order tune and I manage around 20 if I'm lucky. Last tank I think I got 150 miles on a little more than 3/4 of a tank. It's awful. Thank God gas is going down now. $2.75 for 93 last time I checked.

i think some people must have poor math.
27-30mpg on a modded GT.
I get 220-240 a tank at best.

I get 23-25 mpg in my car with mods in sig. This is a touch less then 3/4 highway and a very spirited +1/4. I havnt gotten less then 23 since ive owned the car in May even when I have like 1/2 highway and 1/2 spirited city.

I've gotten 13.7 and 13.8mpg the last 2 tanks since I got my 4.10's put in... OUCH!

But that's with shifting between 3000 and 4000 constantly

Mine getting worse after cams. I used to get altest 200-210 out of full tank, but now I have comp cam xe270ah-13 and a tune from my out of box SCT . I am getting less then 190 out of full tank. I do all highway driving and this time I will know for sure how much I will get. I will post my new # in few days.