i have a 2000 ls1 trans am ws6 and it blows blue smoke every now and then if i open it wide open. it doesnt do it all the time the car has no cats and an x pipe and 1 chamber turn downs and it seems to do it the worst when it is cold. There seems to be no power loss and it just burns some oil just wanted some feed back!!!! PLEASE help im concerned

 

1 more thing the car has no egr valve

 

Sounds like oil is getting past the rings when cold (rings seal better when hot) and at WOT.

 

you might try a catch can or an ls6 valley cover. also check your intake manifold to see if it's covered with oil. the catch can and/or valley cover will help alleviate that problem.

 

Just thought of something else... oil could be getting down past your valve seats. When it sits for a while and the engine cools, there is more clearance for the oil to get down in there (you say it does it more so when it's cold).

 

yeah like if i get on it when its cold it doesnt smoke right when i crank it up but if i rev it when its cold so yall think its just the normal ls1 ring flutter? or the pcv system?

 

Is it a major problem?

 

First off, dont rev a cold motor. Youre asking for trouble if you do this.

But I agree that the pistons and rings will have sloppy tolerances until the motor gets up to operating temp.

 

Not reving a cold motor will probbly stop this if not rings might have been hurt from doing so.

 

i normally dont rev it but i was just noticing if i blip it i ahve heard other guys have this problem too

 

wouldnt it smoke at every wot run all the time if it were the rings im thinking it may be the pcv no smoke out of teh oil cap and it seems to fire fine with normal ls1 oil consumption 1 qt ever 1000-1500 miles