boosted lt1 missing problem

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Jul 16, 2011 | 11:38 AM

detroit_903

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boosted lt1 missing problem

been having a really bad miss latley. replaced almost everything... noticed that 2 out of the 8 plugs are fouled out really bad really wet. the rest of the 6 are dry... did a compression check and everything is perfect in all cylinders. What could the problem... Maybee injectors bad?? or ----

Jul 16, 2011 | 11:43 AM

pro94lt

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From: Arkansas

valve seals?

Jul 16, 2011 | 12:30 PM

detroit_903

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Originally Posted by pro94lt

valve seals?

those are good

Jul 16, 2011 | 12:55 PM

NoMoreLS1

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From: Naperville, IL

What was the gap like on the plugs? What type of plugs? Perhaps the gap has closed up and decreased the spark causing a wet plugs.

Jul 16, 2011 | 06:41 PM

boostedlt1

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which two plugs were fouled?

Jul 16, 2011 | 07:32 PM

boosted LT1

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From: Montgomery AL

Stock LT1 ignition often have trouble ~7 psi.

I have run an MSD box on 4 boosted LT1s and have had no problems to ~20 psi. I use autolite I think 106 (whatever they call for stock) and run .030 - 035" gap

Good luck

Jul 17, 2011 | 12:48 PM

05HD

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From: CT/NJ

A little bit of info would be helpful here...

What 2 plugs?
Did you change them and it did it again?
Did you change the wires for those plugs?
Swap injectors to different cylinders and see if the fouling follows?

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