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

so how much does regapping plugs effect tune?

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Old Jul 16, 2009 | 11:26 AM
  #21  
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Well that sounds good, So Im assuming its just way rich?
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Old Jul 16, 2009 | 11:28 AM
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that would be my best educated guess. Which rocker was loose? That'll give you some more answers as to what is/was actually wrong with it.
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Old Jul 16, 2009 | 11:44 AM
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3rd cylinder on DS exhaust valve
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Old Jul 16, 2009 | 12:00 PM
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So in other words, you basically tried flooding that cyl. Since with the loose rocker, it wasn't opening the valve to it's fullest, so you're leaving all that exhuast in the cyl, and it can't burn all the new stuff, then it just piles up into the manifold from there.....in basic terms..... So with the rocker properly adjusted and new plugs I'd assume it'll smoke a little here and there until out burns all the carbon off in the combustion chamber. Worst thing is you don't know how long that rocker was like that. If it's been like that for a very long time, you may have washed the cyl with all the unused fuel....but I'm assuming that it hasn't been too long so you'll probably be ok. Have the boys at speed do the tune, and see what happens from there, I don't see too much bad coming from this. BTW check the plugs again after the dyno time and see what she looks like.
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Old Jul 16, 2009 | 12:05 PM
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btw your vid on ltxtech shows a fuel smoke....I just saw it, it's a rich smoke, nothing else....speed should take care of you.
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Old Jul 16, 2009 | 12:14 PM
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Thats what Im thinking also. If 3 growm men sit behind the car and it looks like were all crying and cant smell oil its prob rich.
Not sure how long it was like that, my guess is it started at the shootout and I have barley drivin the car since maybe 3 miles.
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Old Jul 16, 2009 | 12:17 PM
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yeah you should be fine, especially since it wasn't there at the shootout. The tune should help out a lot, and get you back on track, just make sure they vent the room, otherwise everyone will be crying
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Old Jul 16, 2009 | 12:31 PM
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LOL! The dyno basically backs up to the offices. I figure worst case I just put in the 355
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Old Jul 16, 2009 | 12:35 PM
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heres a vid of its very last run at the shootout, no smoke.
http://www.youtube.com/watch?v=q61U79lYDZU
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Old Jul 16, 2009 | 01:29 PM
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Originally Posted by AChotrod
LOL! The dyno basically backs up to the offices. I figure worst case I just put in the 355
I'm sure Larry and Tom could use a good whif of unburnt fuel, especially in the showroom .......and you didn't smoke but the black car was all over.....Oh well, if nothing else it'll wake those guys up over there...what time are you on the dyno??
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Old Jul 16, 2009 | 01:37 PM
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9am I dont think Larry will be there. That was the LTXshootout x na final and the black car beat me. He pulled around me on the big end
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Old Jul 16, 2009 | 01:40 PM
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Maybe If I roll my happy a$$ out of bed, I'll meander the 4 blocks over to the shop and meet you in person.....Then again I've got my girls, so that could be a disaster......
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Old Jul 16, 2009 | 01:53 PM
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AChotrod, I am only repeating what Ion said the last time I talked with him about the TB screen. I asked if I should put it back in, and he said no, not until we put it back on the dyno with the wideband. So with that said, I would find a new one and put it back in.
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Old Jul 16, 2009 | 02:01 PM
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Originally Posted by duh
Maybe If I roll my happy a$$ out of bed, I'll meander the 4 blocks over to the shop and meet you in person.....Then again I've got my girls, so that could be a disaster......
Come on over that would be cool! The kids cant be that bad? Like you said its only 4 blocks away if it gets to be to much.

Does anyone know If I can buy just the screen for a MAF????? Mine got damaged thats why I took it out in the first place
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Old Jul 16, 2009 | 02:03 PM
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yeah maybe we'll make an outing of it....after all it is close....as for a screen....I've got a 93 so I'm blessed without needing it...
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Old Jul 16, 2009 | 02:07 PM
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I'd ditch the MAF all together.
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Old Jul 16, 2009 | 02:11 PM
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Damn you SD guys!!!
What do you think, should I open the plugs back up tonight or leave them at what Lloyd speced and just have the tune adjusted?
Keep in mind this car will be going N20 by the end of the season, just not now and the plugs wont need to be regapped again then.
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Old Jul 16, 2009 | 02:14 PM
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you might as well leave them if you're going to spray it....but are they colder plugs or comparable to stock heat range??? If they're colder leave them alone if they're not you're gonna need to replace 'em anyway to a colder range to keep the motor happy.....

And my 9 and 3 yr olds can't wait to see the car on the rollers
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Old Jul 16, 2009 | 02:23 PM
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Originally Posted by AChotrod
Damn you SD guys!!!
What do you think, should I open the plugs back up tonight or leave them at what Lloyd speced and just have the tune adjusted?
Keep in mind this car will be going N20 by the end of the season, just not now and the plugs wont need to be regapped again then.
I would say gap them at .35 if your going to spray, especially if your getting tuned tomorrow!
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Old Jul 16, 2009 | 02:24 PM
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I cant wait to see it come off the rollers in good shape and hopefully making more power then b4! See ya there!
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