I have an H22A Turbo Sleeved with forged internals and A precision 6765S turbo on 17psi maybe 500 miles on it after the dyno... Im running 2 x 10an fittings off the valve cover to a catch can that is vented by a 1" 1/4 K&M breather filter. Any time I hit boost My dip stick comes out of the tube and it spit oil all over the driverside of the engine bay?? it cant be blow by I did a compression test cold and got 180 across the board and I did a hot test with 225 accross the board I know its not the rings... is this normal for a boosted car??



In this photo the dip stick is out the same distance that its is when I it boost...

 

check if your catch can is put on correctly...seems like crank case ventilation in not being released.

 

^^Exactly what i was thinking

 

well the catch can is working because I pulled the line off the catch can and I can feel the crank case gases coming out and I had about 2-3 table spoons of oil sluge crap sitting inb the bottom of the can.. im at a loss... but I did look at my dip stick and half the rubber seal is missing from it so I dont think itas sealing enough but you would think that 2 x 10an breathers would be enough?

 

Need bigger lines or more of them. At least -12 for that kind of turbo

 

damn you think so?? is a boosted motor gonna have that much blow by/ Crank case pressure?

 

I vent off the block but on H series you cant do it the way it is done on the B series. See if there are any oil galley plugs, need to be drain galleys and add vent lines from there. You are not getting enough vent for the pressure and you may be getting some blow by. Using forged pistons? If so boosting before the motor warms up will cause excessive blow by until the pistons warm up and get larger to reduce the p-w clearance.

 

yeah I dont have any of those plugs... damn you H-Series!!! hmm I'll just put 2 more vents off the back of the valve cover then.. Yeah JG sleeves CP pistons and Crower rods... I never boost til I hit full tempature then I have fun though!