Im running a completey stock ls engine on 10 pounds. and The only thing I have done it terms of engine ventilation is put a breather filter on the valve cover where the old line that used to run to the intake went.
Am I hurting the motor by running it like this at low boost levels, with no catch can?
Thread jack.lolz
not hurting anything...stock engine is only going to start producing a lot of blow by once it gets worn in from the turbo. Just get a greddy catch can or similar......does your filter on the valve cover get moist or is it oily? if it is then switch to a catch can.