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Dyno'd yesterday

This is a discussion on Dyno'd yesterday within the Firebird / WS6 forums, part of the Vehicle Specific category; Here's the numbers...I was runnin lean too!!...

  1. #1
    386HP 373TQ jwindbigler's Avatar
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    Thumbs up Dyno'd yesterday

    Here's the numbers...I was runnin lean too!!


  2. #2
    member since may 2000 nhraformula's Avatar
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    black
    2000 nhra edition formula

    you cant say you were running lean, every car runs alittle different.
    my car goes from hi 12 to mid 13 af ratio. theres no perfect af when modded.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

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    386HP 373TQ jwindbigler's Avatar
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    That is true. When the A/F ratio went down a little bit, (on the second pull) the HP rose. The shop guys told me that I was runnin just a hair lean as well. When I compared it to my last dyno, where I was runnin about a high 12 to mid 13 like you. Thats what I was basing that on. Plus the guy that did my tune said that he tuned it a little conservative since the engine is still breaking in. So, just a hair lean...

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    Slow'er'Ass Mr. Luos's Avatar
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    Does it get to 14 up top?? It is so compressed I can't tell.
    I shoot for 13:1 N/A.

    If it is 14:1...that is a little lean.

    What pistons?

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    Junior Member CHiCKeN08's Avatar
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    red
    2000 ws6

    what mods you have done?

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    386HP 373TQ jwindbigler's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    Does it get to 14 up top?? It is so compressed I can't tell.
    I shoot for 13:1 N/A.

    If it is 14:1...that is a little lean.

    What pistons?
    At about 3300 it starts to run a little lean (13.67) Once I hit 4500 RPM its above 14, and peaked out at 14.37 at 5700 RPM

    Stock lower end

  7. #7
    386HP 373TQ jwindbigler's Avatar
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    Quote Originally Posted by CHiCKeN08 View Post
    what mods you have done?
    This is going to take a while...

    SLP Intake, Smooth Bellows, BBK 85mm intake manifold, ported and descreened MAF, comp cams 222/224 cam, chromoly pushrods 7.4" (stock legenth), comp cams high rpm roller lifters, hooker LT headers, Custom Y-Pipe (made by Rob at Overkill motorsports...thanks again Rob!!), Magnaflow muffler, SPEC stage 3 clutch, Underdrive pulley, Removed the cats, EGR, air pump thing, and the A/C, 160 degree thermostat, short throw shifter, power steering pump pulley, 3.73 gears, MSD 8.5mm plug wires, NGK Iridium plugs. I might be forgetting something, but I think thats about it. I got the computer tuned as well.

    Here's a couple of pics of the engine compartment




  8. #8
    Slow'er'Ass Mr. Luos's Avatar
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    Stock bottom end...get that lean fixed for sure.

    Might back your numbers down a little, but that is nothing like blowing up a motor.
    Plus...you already have the numbers.

  9. #9
    386HP 373TQ jwindbigler's Avatar
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    Yeah, the guy who programmed it said that it was a pretty conservative tune. He will retune it (free of course) once the engine and new parts are more broke in. I'm hoping for about 400HP.

  10. #10
    386HP 373TQ jwindbigler's Avatar
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    Here's a pretty dumb question/idea. I can smell some of the fuel coming out of the exhaust. I was pondering the thought of putting in a spark plug in the exhaust to get a little flame to come out. I'm not talking about getting a flamethrower kit or something like that which forces your car to run rich. Just the extra crap coming out of the exhaust to burn...you know just to impress the friends. Any downsides to doing this??

  11. #11
    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    When your A/F ratio is corrected (no more lean) you will actually lose a little hp, not so much that you will actually notice it I wouldnt think. Would highly recommend getting it corrected ASAP. Dont want to see ya break anything. Pick up some heads and you should get over 400rwhp that you are shooting for.

  12. #12
    386HP 373TQ jwindbigler's Avatar
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    Well, I have LS6 style heads, so I will just portmatch, and port out the heads when I want to do headwork

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    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    I need some ported heads for my babey.

  14. #14
    386HP 373TQ jwindbigler's Avatar
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    I know whatcha mean

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