LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

3 & 5 crossed

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Old 01-13-2007, 04:46 PM
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3 & 5 crossed

after dropping my motor out i noticed that the 3 & 5 wires were crossed...
how much does this affect my performance?

i put about 10k on my engine this way...

will my et drop at all?

and could this be why i had a misfire code?
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Old 01-13-2007, 07:29 PM
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i cant believe you were actually able to run it that long without noticeing something was seriously wrong. im pretty sure that would have been your problem
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Old 01-13-2007, 07:44 PM
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Err...I hope you dont have anyone doing performance work for you, cause if they are, they dont know crap.

-Dustin-
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Old 01-13-2007, 08:03 PM
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http://videos.camaroz28.com/recentvi...5132da08a9.htm

i made this video when wires were crossed... the car runs real freakin rich and has a bit of backfire... i thought it was just the borla...

can you tell something is wrong? i really couldn't...

yeah, i pretty much do my own work now... unless it is the differential or the tranny....

Last edited by ZL1modified; 01-13-2007 at 08:04 PM. Reason: adding info
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Old 01-13-2007, 08:04 PM
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I had 2 reversed and i could not get the car out of the garage. The vibration was like someone plugged the exhaust pipes with bananas. I was thinking it was running on 1/2 the cylinders but maybe the ones that are wrong makes all the difference. Mine must have been the 2 worst to be reversed.
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Old 01-13-2007, 08:06 PM
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Originally Posted by Bersaglieri
Err...I hope you dont have anyone doing performance work for you, cause if they are, they dont know crap.

-Dustin-
i had someone change my plugs and wires when i just got the car and didn't feel like sqeazing in there...
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Old 01-13-2007, 08:41 PM
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when I first bought my 89 RS it had 3 and 5 crossed. It ran rich and popped a lot. Also smelled and got horrible gas milage. After I changed the plugs and wires during normal service I noticed the problem, after switching them back and making sure all the other wires where in the right place I took it for a drive and HOLY CRAP what a difference! I just thought it was cause it was a 305 and had over 200K miles that it was so sluggish but I was wrong.
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Old 01-14-2007, 09:03 AM
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i'm curios to know why it wasn't running crappy...

is this something that will take ~.1, .2, .3 seconds off the 1/4?
i know that it is hard to give me a perfect answer, really looking for someone to chime in that had same problem...
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Old 01-14-2007, 09:33 AM
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No offense but......
Originally Posted by ZL1modified
i'm curios to know why it wasn't running crappy...
Here's your sign

Originally Posted by ZL1modified
the car runs real freakin rich and has a bit of backfire... i thought it was just the borla...

No muffler will make it run rich.

Didn't you notice the performance decrease, running rich and backfiring after the wire change that wasn't there before the wire change???????

A line lock would make a skateboard look good. But when you let off the brake and took off, it sounded down on power.

I would be concerned about the health of the 2 cylinders in question. Souping is bad for the cylinder walls. Time for a borescope!!!!!!!
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Old 01-14-2007, 05:14 PM
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[QUOTE=speedygonzales;4341964]No offense but......
A line lock would make a skateboard look good. But when you let off the brake and took off, it sounded down on power.QUOTE]

i have no line lock...
getting one though...
the cameraman was rushing me... i tried to let off the gas so i could launch...

i'm not a pro...
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Old 01-15-2007, 03:13 PM
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[QUOTE=speedygonzales;4341964]No offense but......


Here's your sign QUOTE]

can you tell me why it wasn't running like ****?
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Old 01-15-2007, 03:16 PM
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[QUOTE=speedygonzales;4341964]
Didn't you notice the performance decrease, running rich and backfiring after the wire change that wasn't there before the wire change??????? QUOTE]

i got the wires changed as soon as i got the car, along with the 3:73's i previously had and borla... so no i didn't notice...
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Old 01-15-2007, 03:20 PM
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I would be too embarrassed to even post that on any site....

You have more ***** than me, my friend.
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Old 01-15-2007, 03:24 PM
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Old 01-15-2007, 03:33 PM
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Curious as to which wires were crossed Car running with 1 cylinder not firing was noticable within seconds as soon as i hit the road..
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