LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What's wrong?

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Old Jun 1, 2004 | 02:33 AM
  #1  
97'-lt1's Avatar
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Default What's wrong?

Hey everyone, I'm new to LS1tech so I thought I would introduce myself. My name is Kevin I have a 97' Trans Am with a few mods. Can you guys help me out by telling me what you think might be wrong with my dyno graph. It seems to be fine til about 4700RPMs and up...

www.fbodypages.com/kevin/After Tuning.jpg

Thanks

Kevin

Last edited by enisguy; Jun 1, 2004 at 03:13 AM. Reason: fixed hyperlink tags
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Old Jun 1, 2004 | 03:12 AM
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looks like a misfire. A miss up that high... I'd guess opti. What mods have you done?
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Old Jun 1, 2004 | 09:33 AM
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detonation or bad fuel curve. check your fuel trims and AF/ratio. I wouldnt guess an opti because its only happening in high rpms....ignition problems, 99 percent of the time, show throughout the entire dyno or atleast when the motor is under a load, not just in the higher RPM's.
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Old Jun 1, 2004 | 12:13 PM
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Sorry I forgot to put my mods in my sig. Could possibly bad o2's cause this, or would bad o2's also be apparent in the whole RPM range?
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Old Jun 1, 2004 | 02:53 PM
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I think I just read that O2's are ignored during WOT. Hell, I don't know, I should have bought a carb!
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