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new tune, bad milage

This is a discussion on new tune, bad milage within the General Help forums, part of the LSx Technical Help Section category; I just had a tune done and now I realize I only get about 215 miles to a full tank ...

  1. #1
    crazy ass white boy dennis ss's Avatar
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    navy blue metallic
    2002 camaro ss

    new tune, bad milage

    I just had a tune done and now I realize I only get about 215 miles to a full tank of 93 octane gas. I know you pay to play and the car is much faster but damn, that's about 80 miles gone from a full tank. I know he adjusted the air/fuel ratios and made the timing more aggressive but does this sound right?
    2002 Camaro SS/M6. Volant CAI, 80mm TB w/spacer, cat delete w/ ory, borla XR-1 w/ cme, custom tune, 3.73's, 8,000k HID headlights and foglights, 19" staggered ruff 278 wheels.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
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    M6 eh? What RPMs do you shift at?

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    Moderator Cutlass's Avatar
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    Quote Originally Posted by dennis ss View Post
    2002 Camaro SS/M6. Volant CAI, 80mm TB w/spacer, cat delete w/ ory, flowmaster w/ cme, custom tune, 3.73's, 8,000k HID headlights and fog.
    If these^^^ are your only mods, then yes your gas mileage should be better.

  4. #4
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
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    Yah. That's what I am thinking too. I know when I first bought my car, before tune, I was going through a tank every 3-4 days. After the tune, the most I got was 279 miles out of one tank. And that was a weeks worth of daily driving out in the Poconos. City driving here in NJ, I get around 220-230 out of a tank. I shift at 2-3k in the city and 4-5k on the highway.

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    Senior Member bills98ta's Avatar
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    As soon as you felt the new power added, your foot might have gotten heavier for a while too !!! LOL !!!
    I'd think it would get better mileage on a normal cruise. ( if no rice burners pull up beside you )

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    Veteran 0rion's Avatar
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    Quote Originally Posted by bills98ta View Post
    As soon as you felt the new power added, your foot might have gotten heavier for a while too !!! LOL !!!
    I'd think it would get better mileage on a normal cruise. ( if no rice burners pull up beside you )
    this was what I was thinking. It becomes almost a subconscious thing....you just get into it a little more and over the course of a tank it'll add up. Figure when you're into it your mileage is in the single digits.

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    Retired NOT tired SteveC's Avatar
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    These vehicles are set from the factory with a lean A/F ratio (14:1 +), in order to help meet the federal regulations for MPG and avoid a guzzler tax.

    Your tuner probably set the A/F ratio to what it should have been in the first place (13.2 to 13.5:1)

    You are giving up MPG, however you are extending the life of your engine (IMHO).

    SteveC

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    crazy ass white boy dennis ss's Avatar
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    navy blue metallic
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    Thanks for the input guys. I'm gonna try to baby the shit out of it and see what I can get for mpg. I drive about 50 to 80 miles a day and I notice I shift around 3,500rpm's after I had my exhaust because thats the sweet spot, maybe that has something to do with it. It's hard to have one of these cars and not hit the loud pedal. Thanks again guys

  9. #9
    Senior Member bills98ta's Avatar
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    You might need one of Frost's dual tune ECM's !

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    crazy ass white boy dennis ss's Avatar
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    navy blue metallic
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    Quote Originally Posted by bills98ta View Post
    You might need one of Frost's dual tune ECM's !
    never heard of that, what is it? I had a friend that owns speed gangsters tune my car with a laptop, I'm not sure whats better

  11. #11
    Senior Member bills98ta's Avatar
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    Here's a link for it. The ecm has two processors in it, so you flip a switch to change tunes !!! I'd like to try it too !!!

    http://www.tunedbyfrost.com/products.htm

  12. #12
    Smiles for 9.5 Years cammed goat's Avatar
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    Oh wow. I like that dual stage setup. Now I am remembering the C4 ZR-1 with the A and B keys. One mild...one NASTY. I'd like to see some vids of that setup in some C6s. Nothin like a modern Vette with the brain of a C4 ZR-1.

  13. #13
    Senior Member bills98ta's Avatar
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    Id like an all motor and all NO2 !!!

  14. #14
    crazy ass white boy dennis ss's Avatar
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    navy blue metallic
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    Are the tunes from frost really that good? I always read other peoples threads about his tuning, I just thought you could do more with software on a laptop. I don't know anything about the tuning aspect of the car, that's why I'm asking

  15. #15
    Senior Member bills98ta's Avatar
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    I have HP Tuners on my lap top, but, there's so much... I have a radical build and just can't seem to get it 100% ... I plan on having frost dyno tune mine, then I can just tweak the rest of the tune. I don't think a mail tune would be right for me, but a bolt on car would be fine.

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