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Thread: problem with calc.vet

  1. #121
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Usually for spark I recommend a Dyno. You can tune for street by doing it 'old school'. No KR -2 degrees, but for track and especially spray..a dyno is worth the bucks.

    N/A timing depends on heads, cam, CR. My heads are 11:0.1 CR, and I run about 22-25 degrees max. A lot of the LS1 heads can take 26-28 degrees.

    As far as Spray..I am not a lot of help. There was one other forum member who had some pretty bad luck spraying from the line. I am sure you can find his thread if that helps.

    My final recommendation is to to tune spark on the dyno if possible.

    Good luck.
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  2. #122
    Joe (Moderator) joecar's Avatar
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    It depends on various things, you will not need much timing because a nitrous burn proceeds quicker than a gasoline burn; make sure AFR is sufficiently rich and make sure the RPM's are up (to avoid spraying while bogging/lugging), but I'm not an expert... you might ask on LS1tech.

  3. #123
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Quote Originally Posted by loganlewis View Post
    The worst thing is, now at wide open the afr is staying between 12.2-12.5 after doing it about 5 times I gave up. In the wide open cells the counts were over 50. commanded PE eq ratio is 14.67 (1.16 eq ratio) across the board.

    Does anybody have any ideas on why I can't hit 12.8-13.0 like I was?
    LL, I just noticed you still have B0701 Catalytic Converter Protection Enabled. You need to change that to Disabled. That is causing your AFR to be way too rich (EQ=1.25)!
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


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