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hows ur mpg? for all you boosted guys out there

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  • #16
    Originally posted by 93grandprixse View Post
    wow, id never run a car at anything lower than 12:1... thats rich as hell redzmonte...

    i think its like 12.5:1 at which peak torque can be found usualy with a/f ratio...
    HAHA i know.. i need some fine tuning. But it still makes great power and for over 2yrs hasnt blown up....

    S
    Shane "RedZMonte"
    2004 Corvette Z06 Commemorative Edition -VIRGIN
    1995 Monte Carlo Z34 14.38@101mph, 331hp/355tq
    -Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
    2004 Subaru WRX STI -Lightly Modded (SOLD)
    1994 Lumina Z34 -VIRGIN (SOLD)
    1992 Lumina Z34-VIRGIN (RIP)
    1992 L67 Lumina Z34 (SOLD)
    1990 Turbo Grand Prix (SOLD)

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    • #17
      so could i supercharge a v6 or get a 3.8sc & get great mileage (with my foot out of it) with a very tall rear end gear ratio-rather than modifying the trans itself?

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      • #18
        I had our TGP to 22MPG with 75% freeway/15% spirited city/10% tuning. I was getting it better and better until it had issues this past December. I shouldn't hope upon it but I really do hope the cam is going flat so we can put in a better cam, with more torque, cruise is right above where it starts making any power so going up any hill it downshifts at least one gear. Heavy TGP with a GT3076R and a horrible bottom end torque cam doesn't go very well at 4400ft and hills
        Brian Edwards
        '73 Trans-Am
        '79 Suburban
        '90 Beretta INDY
        '90 Turbo Grand Prix
        '04 TSX
        '04 TL

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        • #19
          you can get better mileage with a lot of bottom end, tall gearing, and low rpm operation. just swap in a turbo diesel with a 2.56 FDR.
          Andy

          sigpic

          fastest 1/8: 10.19@ 67.17
          fastest 1/4: 16.16@ 82.70

          62mm TB, 1.6 roller tip rockers, Ostrich 2.0, UD pulley, TB heater bypass, K&N, 180* stat, No cat, 99Grand AM dual cooling fans. 4T65E swap FDR 3.69, EP LSD, F.A.S.T. transmission controller, TransGo shift kit.

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          • #20
            not going diesel-im just not paying 50% more for the fuel just to get 30% more economy

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