So what do you guys think about this idea?

usdmLS-T

New Member
So ive had alot of problems blowing oil pan gaskets (boosted ls/vtec) and just recently ran two -12 an lines out of the valve cover to a vented catch can and that didnt help, i boosted once and the gasket blew. So my question is do you think it would be a good idea to run two an lines from the back of the block to the valve cover, that way i wouldnt loose oil and the pressure would just go out my two other lines to my catch can?
 

dc2GS-R

Super Moderator
Personally, I'm still thinking blow-by isn't your problem. Excessive crank pressure is vented through the PCV. Most of the time, if the pressure is more than the PCV can handle, then it will just pop your dipstick up.
 

usdmLS-T

New Member
dc2GS-R said:
Personally, I'm still thinking blow-by isn't your problem. Excessive crank pressure is vented through the PCV. Most of the time, if the pressure is more than the PCV can handle, then it will just pop your dipstick up.
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yea but i dont have any form of pcv, other than two -12's running out of the valve cover, and the easiet way for the pressure to get out of the crankcase is though the weakest point which in my case is obviously the pan gasket
 

dc2GS-R

Super Moderator
Why are you not running a PCV? That's essentially what you're trying to re-create. Except the PCV acts like a check valve.


Oh and the simplest way out for crankcase pressure is the dipstick. I couldn't see excess pressure blowing out the oil pan gasket that easily unless, maybe, if the pan is warped
 


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usdmLS-T

New Member
dc2GS-R said:
Why are you not running a PCV? That's essentially what you're trying to re-create. Except the PCV acts like a check valve.
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The motor is an ls/vtec, vtec motors pcv is a box on the back of the block and ls motors pcv comes from a pcv valve on top of the valve cover, which makes my motor not have a pcv system anymore. So i think im going to pull the pistons out and check all the end gaps and go from there. Because right now idk if its to much blow by or the valves not seating good for the reason i have kind of shitty compression.
 
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