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Here is my M6 Trans Am gas mileage with cam/headers

This is a discussion on Here is my M6 Trans Am gas mileage with cam/headers within the Manual Transmission forums, part of the Drivetrain category; First the details....I drove from my house in NE Philly to the Joisy shore and back. I had the T-Tops ...

  1. #1
    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
    00 Black Ram Air Trans Am

    Here is my M6 Trans Am gas mileage with cam/headers

    First the details....I drove from my house in NE Philly to the Joisy shore and back. I had the T-Tops off and windows down for both rides, which from what I understand would worsen gas mileage with the extra drag on the car. I drove in stop and go for around 20 minutes total, the rest was pretty much 6th gear using 5th to pass. I launched like a bat outta hell at ALL ligts and toll booths. Here are the stats:

    211.6 miles total
    8.11 gallons of gas used=
    26.1 miles per gallon rounded off (26.091 to be exact)

    Not bad huh? I figured for around 20 or so with all my mods(in sig below), 26+ is a major surprise/bonus for me. To have a hog in the driveway with 425+ hp/tq and still get 26 mpg I am happy
    '00 Black Ram Air TA TR224/224 PRC 5.3 59cc Heads
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    Sounds normal for a easy drive in an Fcar M6. How is it came to the "425+hp/tq " rating? Which is it , hp or tq?

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    Member Fade2Black's Avatar
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    Silver
    2000 TransAM M6

    it seems like i dont get much..
    and im stock..

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    Member Fade2Black's Avatar
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    how can u tell exactly?

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    Senior Member Zboner's Avatar
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    man, i remember when that car was a stocker, lol. its nice to see it grow up like mine has

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    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
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    Quote Originally Posted by 30thbird View Post
    Sounds normal for a easy drive in an Fcar M6. How is it came to the "425+hp/tq " rating? Which is it , hp or tq?
    Dynoe #'s in sig, did you miss that? Put down 399 hp & 397 tq which equates on a low estimate to 425 at the flywheel

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    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
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    Quote Originally Posted by Fade2Black View Post
    how can u tell exactly?
    I filled my tank all the way to the top. Drove the 200+ miles to and from using the odometer to track my miles. Then when I got home I refilled the tank and checked how many gallons it took. You divide the gallons into the miles to get your total

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    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
    00 Black Ram Air Trans Am

    After I get home tom from work I am going to test again to see how my stop and go city driving affects the mpg, I do alot of heavy stop and go in the morning, I'll post the numbers tom or friday.....hoping for 18-20 in stop and go crap.

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    Senior Member Hurley711's Avatar
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    OK it got worse....significantly worse. MPG with tons of stop and go driving, I mean TONS, I got 17.5 MPG. Guess it's still not too bad for city driving with my mods.

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    Slow'er'Ass Mr. Luos's Avatar
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    I was getting 27.5 MPG on the highway when I was cammed with bolt-ons.
    They do pretty good.
    It was a 226/234 554/575 112.
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    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

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    Senior Member Zboner's Avatar
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    Quote Originally Posted by Hurley711 View Post
    OK it got worse....significantly worse. MPG with tons of stop and go driving, I mean TONS, I got 17.5 MPG. Guess it's still not too bad for city driving with my mods.

    I GET THAT HIGHWAY

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    Slow'er'Ass Mr. Luos's Avatar
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    Hell, getting 16 MPG with the 'baby' cammed 402 around town if I drive it light.
    Soon to change though...4.11's.

    Around town with the 226/234 I could get 22.5 MPG.

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    Quote Originally Posted by Hurley711 View Post
    First the details....I drove from my house in NE Philly to the Joisy shore and back. I had the T-Tops off and windows down for both rides, which from what I understand would worsen gas mileage with the extra drag on the car. I drove in stop and go for around 20 minutes total, the rest was pretty much 6th gear using 5th to pass. I launched like a bat outta hell at ALL ligts and toll booths. Here are the stats:

    211.6 miles total
    8.11 gallons of gas used=
    26.1 miles per gallon rounded off (26.091 to be exact)

    Not bad huh? I figured for around 20 or so with all my mods(in sig below), 26+ is a major surprise/bonus for me. To have a hog in the driveway with 425+ hp/tq and still get 26 mpg I am happy

    damn that is impressive. My trans am definatly got more miles per gallon then my cobra. I don't even get 200 miles per tank.. given it is a small tank

  14. #14
    Evr sena bdgr killa snak? Roastem's Avatar
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    Quote Originally Posted by Hurley711 View Post
    Dynoe #'s in sig, did you miss that? Put down 399 hp & 397 tq which equates on a low estimate to 425 at the flywheel
    Low estimate is right. I put you at 458HP/456TQ, and that is with a 13% drivetrain loss. If you had an electric water pump (<--that b*tch is expensive BTW) and minimal accessories, you would be pushing around 500 at the motor. Pretty stout for an N/A small block, ANY N/A small block.

    I am sure it pulls hard now, but you know the STOCK LS7 makes more power than that, just imagine if you had one of those babies in there with a monster cam and long tubes...that thing would make you your pants when you drop the hammer.
    Last edited by Roastem; 08-09-2006 at 06:26 AM.

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    Senior Member ss~zoso~ss's Avatar
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    i get 13 at best around town and i dont beat it much at all, i'm getting my plugs changed tomorrow and i'm hoping that is the problem

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    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
    00 Black Ram Air Trans Am

    Just an update here fellas. On the recommendation of Sarge I went out and bought FP60 and starting using it. Well I did my routine stop and go work driving, this time with the FP60 in the tank. Numbers were:

    136.1 miles driven
    6.832 gallons used=




    19.9 MPG........UP from 17.5 FP60 is the shit, I came home with an extra 1/4 of a tank of gas last week...not a misprint, an extra 1/4 of a tank than I usually have left

  17. #17
    Senior Member ss~zoso~ss's Avatar
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    SS: NBM, tan top
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    no figure out how much money you saved and then how much you spent on the treatment

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    Senior Member ss~zoso~ss's Avatar
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    looks like good stuff i'm gonna get some use it when the car sits over the winter

  19. #19
    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
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    Quote Originally Posted by ss~zoso~ss View Post
    no figure out how much money you saved and then how much you spent on the treatment
    Treatment cost $44 for a gallon shipped, next time I am buying a bigger quantity. IT is worth the $$$ spent. 17 gallon tank rounded off x 2.5 MPG gain gives me 42.5 miles more to a full tank. Thta is $$$ well spent for only using 3 ounces per fill-up.

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    Senior Member Zboner's Avatar
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    dude im getting me some

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