what's in your catch can
Full Member
Joined: May 2001
Posts: 219
Likes: 0
From: FL
It gets sucked out of the oil filler neck into the catch can and then from catch can to after air filter in front of turbo inlet pipe. Just like stock setup without the stock turbos and with a catch can.
Joined: May 2005
Posts: 3,243
Likes: 42
From: Kennewick, Washington
the oil in your catch can isnt from oil blowing by the seals, thats what happens when your motor smokes.
whats happenning is under boost, the air/fuel mixture is pressurizing the crank case due to poor sealing. most often from poorly clearanced sideseals. what youre seeing in your catch can is air/fuel/oil mixed.
when this pressure builds too high, it pushes the oil past the oil seals also, creating smoke from your exhaust since its being burnt.
I'm not a fan of using a turbo inlet for suction for positive crankcase vents, i find venting to atmosphere the best solution.
having restrictors in your crank case vents is something i never heard of and dont know why someone would do that.
Also, if you have so much blowby its generally an engine related issue.
All these fancy catch cans are exsessive. a simple hose from your crank case (i run mine from top of the oil filler neck) to a soda bottle or something will suffice.. i just let mine hang under the car. then again, my sideseal clearancing is tight and i generally dont have that much blowby
whats happenning is under boost, the air/fuel mixture is pressurizing the crank case due to poor sealing. most often from poorly clearanced sideseals. what youre seeing in your catch can is air/fuel/oil mixed.
when this pressure builds too high, it pushes the oil past the oil seals also, creating smoke from your exhaust since its being burnt.
I'm not a fan of using a turbo inlet for suction for positive crankcase vents, i find venting to atmosphere the best solution.
having restrictors in your crank case vents is something i never heard of and dont know why someone would do that.
Also, if you have so much blowby its generally an engine related issue.
All these fancy catch cans are exsessive. a simple hose from your crank case (i run mine from top of the oil filler neck) to a soda bottle or something will suffice.. i just let mine hang under the car. then again, my sideseal clearancing is tight and i generally dont have that much blowby
I was under the impression that a setup such as yours is not allowed on tracks.
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