Engine build
- Thread starter moparkxracer
- Start date
I had the moroso deal plumbed into the exhaust. It was ok until this built motor. It has more blow by than the other motors. It was ok until started to see bigger boost. It would blow the dipstick out every time I went WOT.
Did you put a pressure gauge in the crank case? Would be interesting to see how much pressure it takes to lift the dip stick, as well as how much it takes to blow a front or rear main seal.
you're not the only one blowing the dipstick out. A good friend have an almost identical setup on his lmm with the exception of an AF cam and fingers pistons. it started blowing the dipstick out and showering the engine bay with oil every time the pedal went to the floor. we didnt check crankcase pressures. motor has been pulled to get an AF cam and get the forged pistons out.
the one im talking about was built by socal in 2012. im confident is was assembled properly. i think in this case its just several hard miles on forged pistons with multiple people behind the wheel having their fun.
I ran a GT5541R over a GT4094R on my old Cummins and it would push some oil past the o-ring on the oil cap. It was a fresh motor but it did it even after break in. I figured it was just life with triple digit boost numbers...
How well does this work and where did you get the fitting? Is it better to us a one way check valve in this situation? I am looking at doing it to a buddys 13 cummins since i rerouted his CCV and he is complaning about the smell. If it works good, i may do it to mine.
Here is what I am using instead of a pump. This Evac fittings weld into the exhaust. Vaccum is created to suck out crankcase pressures. It pulls up to 3 lbs of vacuum.
The fittings came from Summit Racing. They are all stainless and made by Vibrant. They will work well. You shouldn't have anymore smells getting into the can. I don't believe a check valve will help any. It would probably restrict flow.
Does it matter where the fitting is plumbed in? Like how far from the turbo or after a bend? My engine was built a little on the loose side this go around. I think I had .008 ptw and .028 ring gap. I figure that is what is causing the higher blow by. Not a clue on the wall finish. Motor still only has about 3,500 miles on it. Maybe it will get better lol
Twins on mne mine and I had it just past the 90° bend where the exhaust goes straight to the back.
So that you don't have a restriction from enough possible volume. Built motors do have a tendency to breathe more than stock motors. This is one of those items that you couldn't over do it in my opinion. Of course, not many address this anyways.