I have a ls1 head and cam stock bottom end 98 Vette. THe car has always used a little oil, but with time it seems to be huffing more and more. It some times huffs when when idles and huffs when I get on it at higher rpm. The car put down good power (440 rwhp). I do not have cats on the car. What could this be?

 

tttttt

 

maybe try a catch can and a truck styke pcv valve, ls6 valley cover. could be just oil being threw blew into the intake

 

Are you talking about smoke coming out of a breather cap? How much oil are we talking here? I see your tryin to squeeze 1 extra hp out of 439

 

No breather, huffing out the tail pipe, it doesnt do it right away at idle but after a drive or been running for a while and at load in hight rpm. I have not done the zo6 pcv mod yet but have triied a breather and it seemed to not change, and I do have a catch can on the system but that doesnt seem to do what its supposed to do.

Oh sorry about the 1 hp white lie, just easier to type ( being lazy)

 

i have 2000 t/a and it does same thing i found that my car eats oil threw the pcv system put a catch can on it should help i took my intake off and there was oil all over inside of it from the pcv system sucking the oil threw

 

If its coming out of the tail pipe then its getting in the combustion chamber some how. My guess would be valve seals or rings. If it gets enough oil in there to blow a puff of smoke all the way through the exhaust there has to be enough oil in there to make that large amount of smoke. I really do not think it is your pcv system messing with you. Do a compression test and see where that leads you.

 

i just dont see how he could have bad rings and still put down 439 rwhp

 

didnt say rings. he said seals lol. thats my guess also. valve guide seals wearin out, that would cause it to puff a little smoke now and again.

 

actually he said valve seals or rings

 

put a breather on it and 90% of the issue went away, guess Ill switch to ls6 pcv setup