badmonza

Had car put on dyno and smoked at top rpm and when let off. Heard pcv systems suck on these cars, so I checked it out. No pcv valve in line before entering intake at all. My question is if I just install a catch can will it stop this without the pcv valve? Thanks

burbalanche

iTrader: (3)

yes it should help at the least.put a catch can and run a line from each valve cover to it.that is not a good crankcase evac but will help at the least.i had mine setup like that and had no problems.

dr_whigham

iTrader: (49)

Mine did it too at the tip-top of the pull, and when he let off. I have an 04+ LS6 valley as well as a Norris catch can. Mine wasn't very bad though.

JRENIGAR

iTrader: (37)

Mine threw a good lil puff at the end of each pull on the dyno. That was 10k miles ago when the blower went on. It turned 140k the other day on the stock longblock. Dont worry, just dont over rev it...

neverstop

when I dynoed my 1999 ls1 it smoked more than that in the same way and the guys there said not to worry about it at all.