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stock 99 trans am dyno test

This is a discussion on stock 99 trans am dyno test within the General Help forums, part of the LSx Technical Help Section category; what is the rwhp for a stock 99 trans am?...

  1. #1
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    white
    1999 Trans Am

    stock 99 trans am dyno test

    what is the rwhp for a stock 99 trans am?

  2. #2
    Senior Member NeeD4SpeeD's Avatar
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    Collectors Edition Yellow
    2002 Pontiac Trans AM WS6

    Somewhere between 275-285RWHP from what i've heard

  3. #3
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
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    My 1999 WS.6 dyno'd at 320/333 to the wheels with the loudmouth and SLP lid.
    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.

  4. #4
    Member Capster78's Avatar
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    1998 WS6 M6

    you both are on crack. A 99 will usually dyno between 295-305 at the rear wheels with some factory freaks around 310.

  5. #5
    SUPREME member-oderator oneBADDz's Avatar
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    99 B4C

    Quote Originally Posted by Capster78
    you both are on crack. A 99 will usually dyno between 295-305 at the rear wheels with some factory freaks around 310.
    Actually that would put lous's numbers right on track. And 285 isn't a rediculous number either if it's an auto

  6. #6
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Capster78
    you both are on crack. A 99 will usually dyno between 295-305 at the rear wheels with some factory freaks around 310.
    Would you like the chart??
    It wasn't 100% stock...but it only had a lid and catback.

  7. #7
    Detailing + Design third_shift|studios's Avatar
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    My life is a
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    mine's fairly stock cept air filter and borla, mustang dynoed at 315.

  8. #8
    Member Capster78's Avatar
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    1998 WS6 M6

    Quote Originally Posted by Mr. Luos
    Would you like the chart??
    It wasn't 100% stock...but it only had a lid and catback.

    I was refering more to the guy saying 275-285hp.. Your numbers are a little more belivable even though they are kinda high for what you have. I have seen dynos that are +- 10-15hp difference from each other.

  9. #9
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    well, here's my completely stock 99 trans am dyno. back when i had one. and i mean completely stock with 92k on the clock.

    hood closed vs hood open


    hood open vs new plugs, wires, fuel filter vs 150 motor rated n2o

  10. #10
    Member Capster78's Avatar
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    wow dude, you car must be fucked up to only have put down 268hp.. Either that or the dyno sucked. Or it was 100 degrees an you were 1,000 feet in the air.

    I mean camon.. you opend the hood on your car and put DR's on and gained like 10hp and 30lbs of torque on the dyno.. If thats the case Im gana take my hood off and drive around.. its the new free mod.
    Last edited by Capster78; 01-31-2006 at 04:05 PM.

  11. #11
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    you can see all the temp and altitude on the graph. look closely at what i wrote. after changing the plugs, wires and fuel filter, i picked up 10 rwhp which brought it to 278 rwhp. i love the 18 rwhp i gained just by opening the hood. 250 to 268 rwhp.

    btw, i only had that car for three weeks. car lot couldn't get any financial place to take the loan. so, they got it back after me installing the nitrous and running it down the track to a 12.09 @ 115 http://stealthram.com/99tatimeslip.htm

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