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Thread: 1991 supercoupe Vs 1996 firebird formula lt1?

  1. #1
    Join Date
    Jan 2016

    1991 supercoupe Vs 1996 firebird formula lt1?

    Ok guys I bought a ragged supercoupe about a 3 weeks ago. Did tons of upkeep on her [my post supercoupe bucks at boost] new ,hg,fuel pump, fuel filter, cam sensor, I gutted cats and I cut open the muffler in the middle of the car open gutted out the tubes and re welded the muffler. Also found a screamin demon coil at a junkyard on a supercoupe with some live wires all for 25$ hehe. I removed the air intake silencer, other than that it's automatic completely stock and has dry rotted tires lol. My buddies 1996 formula is also auto it has a lt1 350 and we cut off his rotten muffler to, he also has ls1 style cold air with a nice functional ram air hood.

  2. #2
    Join Date
    Mar 2010
    kansas city
    You are better off removing the resonator all together. Worst part of the stock exhaust.port the stock manifold collector's. Get a double ic with a fan. It should be a close race. Make sure your belts and tensioners are in good shaoe. Ie no belt slip

  3. #3
    Join Date
    Apr 2002
    Madison, Ohio
    From what you've said here you're gonna get hosed. He has a lighter car with 285hp, you have maybe 240hp.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  4. #4
    Join Date
    Apr 2005
    LT1 running right will fry a ealy SC.
    1994 Mk VIII in RCOH
    1990 Cougar XR7 - ALIVE! 325RWHP at current tune
    1981 Rabbit 1.6D + K03 50-60mpg

  5. #5
    Join Date
    Nov 2012
    will be a pretty even race to about 60ish and then that v8 gonna pull off on you...
    my 94 got whooped by my brothers hyundai veloster turbo, al he had was an 60 was about 2 cars infront of me and 100ish was gone...
    sad day for me when i lost to a hyundai and my little brother, maby now that my cars gonna be built if no one buys it im gonna run him in a grudge match that im betting ille win do to my whole topend being aftermarket performance, i beter win or i swear im done with these 6'rs....

  6. #6
    Join Date
    Sep 2015

    91 sc vs. 06 gxp

    Guy at work just picked up an 06 pontiac gxp. Pretty sure I should not be putting the sc up against it in stock form but would it even be close in a stop light to stop light race?

    Ooops, I meant to start a new thread not reply to this one. Anyway any guesses
    Last edited by chickencoupe; 05-08-2016 at 05:31 PM. Reason: replied to thread instead of starting new.

  7. #7
    Join Date
    Nov 2012
    my 3000gt will tackle ur sc and maby keep up with the gxp...the few mods sofar are opening it up and the 5speed is such a help when you know how to drive i cant belive my 180hp 3000gt is faster than my 94 sc auto was...for shame..
    with the 3k ille atleast keep up untill 70ish from the line..

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