Originally Posted by
SGTSR20 I added a breather and capped my intake and oil started to come out of my worn oil dipstick, on high boost. So I used heat shrink on top of the part of the dipstick thats supposed to seal, and its now tigth and snug and it wont come out under boost.
Hey, for those who wonder about boosted.
I know this is a posting in a ooooold thread kinda deal.
I came here through google, Read all of the posts, lots of useful stuff
My experience:
SR20DET Blacktop vvt S14 , 250 000 km on the odo, 350 Whp.
trackdays (engine runtime of about 6 hours on the track in a day) daily driving to work and there was really no issues with oil breathing out excessively.
I Finally NOW! understood what the passages was doing, I hooked up crank to the stock place (right above) with a T then to a catchtank, then the front breather to the catch, PVC valve straight to the intake.
Amount of oil in the turbo compressor inlet, a bit yucky kind of oil, catchtank, almost nothing, what was there was veery sticky.
Was a custom Large catchtank, side entrances for breathing, two AN10 hoses, inside with a condensation plate.
My experience is primarily this, but the engine before doing things I did not know I had it as stock and didn't have any issues (same engine)
So, there's not a lot of stuff coming out of it at all,
But I was questioning the need for the clunky catchtank with the VE valve cover, because I am now building a new engine with a P12 VE head on the sr20 rwd block, anyways.
The oil breathing will be more excessive than you'd need it to be if you run a T split where I ran it you actually defeat the purpose of the internal valve cover design, at least on the VE valve cover for the P12, going to assume for now the DET is the same.
you should only have two exits on the valve covers for the optimum setup.
I've attached a photo of it, sorry it looks a bit iffy,
you run your normal valve to the intake manifold on N/A and Turbo, the one that is at the rear on VE valve covers to intake prior to throttlebody on N/A or just prior to the turbo on turbocars, on VVT DET covers it's the exhaust side output that is the foremost of the two.
the exhaust side port on the VE cover to crankcase, on VVT DET it's the exhaust side that aligns with cylinder 4.
VE valve cover picture:
I took a remote camera and looked inside the passages, and it got a lot of condensation plates, so to me, if you get blowby, it must be something wrong with your engine on a DET VVT and a VE P12, because they really well made.
I'll see if I can verify the DET VVT head today, also should have a cover for a old highport DE somewhere.