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cams and mileage?

This is a discussion on cams and mileage? within the Internal Engine forums, part of the LSx Technical Help Section category; just curious what kind of gas mileage all of you out there are getting with aftermarket cam, springs, heads, ect. ...

  1. #1
    suckme sideways andrew69_04's Avatar
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    black w/ ghost stripes
    02 ws6

    cams and mileage?

    just curious what kind of gas mileage all of you out there are getting with aftermarket cam, springs, heads, ect. I just put my 224/231 in lastnight and was curious how much mileage i will lose by havin a big cam over my stock one.

  2. #2
    SUPREME member-oderator oneBADDz's Avatar
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    driving sane on the highway you won't lose much at all, I lost 3 mpg on the highway, lost 5-7 in town (I installed a 3600 stall too so that hurts too), and when I get on it it's shit. I use probably 3/4 gallon per 1/4 mile pass

  3. #3
    member since may 2000 nhraformula's Avatar
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    2000 nhra edition formula

    doing 80 mpg i was getting about 300 to a tank
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  4. #4
    Junior Member Five-0's Avatar
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    12 city/20 hiway. But I still have some tuning issues to work out. With a good tune you shouldnt lose much....some have even seen increased mileage.

  5. #5
    Senior Member INMY01TA's Avatar
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    2001 Trans Am (sold)

    I average about 15mpg with a TR224. Thats mostly city driving tho.

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