Lower compression numbers after lean Dyno ugly plugs

[Trublu]

BL eureka you've discovered penicillin

[Suck fumes]

Running your car above 14:1 for any given time especially above 4k rpm can heat up and warp your valves if you keep running it like that. That's pretty crispy. If you try something else to fix it don't run it all the way through the rpm band if it starts getting lean again.

[Pranav]

RE: the oil getting sucked into the intake, are you running that updated fixed orifice PCV valve that's supposed to fix the issue?

It also fits LT1s, stopped the "reversing of vent flow into the side of the TB" issue, but not sure how that translates to the LS1...

[BryanL]

I have only run it on the dyno and not much as we were trying a few things due to the a/f. But it only started it at first above 5,000. Pumped out the old gas and put in fresh. Same thing. Put in more gas to make sure it wasn't starving and same thing. Took the lid off and cleaned out the grass on the maf but same thing. Pulled the plate out and quit when it still did it.
Now I'm swapping all my old stuff over as far as sensors intake injectors and a new fuel filter. Borrowing an a/f gauge to monitor.
The PVC system was all stock. I'm swapping my vented catch can and closing off the vaccum ports on the intake to keep oil out of the intake. Then see if I can get the tune checked along with monitoring all th sensors. Then a stealth trip around the neighborhood a block from a police station. Or see if I can find a dyno to check it
Obviously want to know it's fixed before tws.
I will also be flushing the radiator for Patterson.

[Hood]

Not sure if you caught what Mike was saying... it looks like you have a coolant leak into the combustion chamber, at least on that cylinder.

[BryanL]

Not sure if you caught what Mike was saying... it looks like you have a coolant leak into the combustion chamber, at least on that cylinder.

Yeah just don't want to acknowledge that it might be a head gasket-if it is then I'm likely out for this weekend. Found a hole in the bellows that may have sucked in some unmetered air after the MAF-just wierd because the A/F wouldn't climb above 13 until upper rpms. A/F gauge is on it now and should be ready for a test drive tonight/tomorrow. I'll just run it around the neighborhood and do a short blast to see if the a/f stays in line. If it does then do it a few more times and pull the plugs.

[Pranav]

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