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  1. #1
    BLKHWK Durango's Avatar
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    Black
    BLK TA modded 12.2@113mph

    99 Trans am stock dynoed at 303.89

    If anyone thinks a tune is no good I tell you a real dyno tune is amazing the 1st pass the car dynoed at 267hp after tuning the car dynoed at 303.89mph

    The only mod is a lid and a Flowmaster muffler that it Pretty amazing!!!!

  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    Quote Originally Posted by Durango View Post
    If anyone thinks a tune is no good I tell you a real dyno tune is amazing the 1st pass the car dynoed at 267hp after tuning the car dynoed at 303.89mph

    The only mod is a lid and a Flowmaster muffler that it Pretty amazing!!!!
    Wow, our cars are fast.......

    I think you meant 303.89 HP.


    Was this on a Dynojet or a Mustang Dyno? If 1st that's sorta low, if the 2nd, about right


    A4 or M6?

  3. #3
    expensive tires az gt eater's Avatar
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    white
    04 2500 4x4 crew cab

    Quote Originally Posted by SMWS6TA View Post
    A4 or M6?
    What's the difference? Parasitic loss? How much diff?

    To OP, that seems really low before the tune. Maybe the prev owner had it tuned, and swapped parts back before selling? That just seems really low.

  4. #4
    11 years of bangin gears cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    Quote Originally Posted by az gt eater View Post
    What's the difference? Parasitic loss? How much diff?

    To OP, that seems really low before the tune. Maybe the prev owner had it tuned, and swapped parts back before selling? That just seems really low.
    Could be. I know when I had my old cammed LS1 dynoed, it made 278whp. After three more sessions, it made 343whp. Some folks will remove some parts and make the car "semi-stock". Hell...there are people who would swap out a fully built motor for a used, unabused motor before selling the car. Ya never know.

  5. #5
    Exalted Cyclops 67CamaroRSSS's Avatar
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    2002 Z28 A4 NBM
    Sadly now demodded :(

    My 02 stock down to the airfilter put down 306rwhp/323rwt... Before the tune.
    67 Camaro: K-K + 797-z (look it up), 454/Th400/4.10 12-bolt = 6mpg, PS/PDB/PW tilt, tach, gauges...

    2005 Corvette LS2/M6 Magnetic Red Metallic (What else would it be?) w/ Cashmere interior

    2002 Z28: NBM/Tan, MTI smooth lid, smooth bellows, !AIR, !cats, 1-3/4" QTP SS LT's, 2-1/2" TD's with X-pipe, MagnaFlows dumped at axle, custom welded SFC's, MidWest Chassis body mount adjustable T/A, 3400 stall, 3.23 gears (was 2.73). Tuned: 343rwhp/357rwt (before TD's). Best: 12.559 @ 108+, 1.73 60' @ 3500' DA w/MT ET Street DR's.

    Carbon footprint? CLOWN SHOE!

  6. #6
    Member jsmith564`'s Avatar
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    yellow
    2004 gto

    Quote Originally Posted by 67CamaroRSSS View Post
    My 02 stock down to the airfilter put down 306rwhp/323rwt... Before the tune.
    what about stock and after a tune?

  7. #7
    Waiting on the Tree transamtom's Avatar
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    NBM
    1999 TA A4

    I only made 312HP and 325TQ w/LT's a Lid,Free Mods and Frosts Mail order tune.

    I wonder how much HP loss there is turning 17" tires vs 16"tires?

    I have seen other 99's with the same mods doing about the same #'s
    2010 Camaro SIM 2SS/RS A6
    1999 TA A4 NBM
    12.265 at 110.52mph

  8. #8
    Exalted Cyclops 67CamaroRSSS's Avatar
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    2002 Z28 A4 NBM
    Sadly now demodded :(

    Quote Originally Posted by jsmith564` View Post
    what about stock and after a tune?
    The numbers in my sig are after a tune with no cats or AIR and with headers into a Y-pipe. I was told that it would be a waste of $$$ to do it as a stocker.

    All the other mods came after.

  9. #9
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    there wouldn't be to much loss between 17" vs 16" if they are made of the same material like if say both are made from aluminum. However it would matter greatly if it was 16" aluminum vs 17" steel. Steel would have more mass/weight density so that would require more torque to turn. Now however the more rotating mass you put on the wheels the greater the drag on the drive train = loss of HP.

    Most HP drag comes from the transmission through the drive shaft and then the rear. The rear having the most drag due to the gearing in the hub and turning of the wheels.

    Tires also play a part in how much friction they give/have against road surface.



    This is why you still see drag racers using 15" wheels.

  10. #10
    Veteran 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

    As a side note, every DYNO reads differently. It also depends on whether it was a Mustang DYNO or DynoJet.

    1/4 mile times are all that matter

  11. #11
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    Quote Originally Posted by 35th-ANV-SS View Post
    As a side note, every DYNO reads differently. It also depends on whether it was a Mustang DYNO or DynoJet.

    1/4 mile times are all that matter


    I asked in my first post waiting on OP to answer the same question.

  12. #12
    Veteran 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

    Yeah I seen that. I figured I'd mention it again since there was no response.

  13. #13
    Waiting on the Tree transamtom's Avatar
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    NBM
    1999 TA A4

    My friends bone stock(right to the tires) 99 Z28 M6 put down 303HP and 308TQ with 1/2 the mileage my car has.

    Mine 123,000 miles

    His 70,000 mile

  14. #14
    11 years of bangin gears cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    And you still have the DynaPak dynos that bolt directly to the axles. I have heard it is more accurate than Mustang or DynoJet. Mine was dynoed on a DynoJet.

  15. #15
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Tune done on the day of the before and after by chance?
    Never seen a near stock car gain almost 40RWHP.....

    Not discounting a tune in any way, but that is simply too much of a gain for a tune alone.....
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

  16. #16
    BLKHWK Durango's Avatar
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    Black
    BLK TA modded 12.2@113mph

    Auto

    The car is an automatic and it was spark knocking a bit before and now it runs amazingly well 1/4 mile timwe 13.33 at 105.88mph with 3:23 gears

    Don't know what kind of dyno it was but I will be asking him

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