A new idea for PCV
#1
New Member
Thread Starter
A new idea for PCV
hi all,
Quite new on here but to keep it brief, what do you guys think of this idea for getting rid of the crankcase pressure
I am currently running a 2.2 ecotec with following mods
B207 with 2.2 crank, forged pistons and rods stage 2 LSJ cams,lightened flywheel and balancer delete, home build with vocky input on Dutch ECU software m62 3.1 pulley ported head, now also putting dbilas springs in, 630cc injectors
This month I will soon be adding a Harrop and LS4 Tb and 3" exhaust but would like to get your thoughts on the Pcv system idea before I do the upgrades as I'm currently getting a lot of oily deposits in my intake system and supercharger and probably the intake laminovas are covered
Cheers and look forward to hearing thoughts
Quite new on here but to keep it brief, what do you guys think of this idea for getting rid of the crankcase pressure
I am currently running a 2.2 ecotec with following mods
B207 with 2.2 crank, forged pistons and rods stage 2 LSJ cams,lightened flywheel and balancer delete, home build with vocky input on Dutch ECU software m62 3.1 pulley ported head, now also putting dbilas springs in, 630cc injectors
This month I will soon be adding a Harrop and LS4 Tb and 3" exhaust but would like to get your thoughts on the Pcv system idea before I do the upgrades as I'm currently getting a lot of oily deposits in my intake system and supercharger and probably the intake laminovas are covered
Cheers and look forward to hearing thoughts
#7
Former Vendor
iTrader: (3)
exhaust evacuation of blow by gasses. as Axletherod05 says, has been done. Not that successfully in my experience. The problem with any VTA system that you are creating, is that you have to tune around what is basically a massive air leak. You are not drawing any vacuum because you are venting the rocker cover to the air. You would have to make a few holes some place to follow your idea in the drawing, but why dont you try it and see how it works for you? Let us know how it works out.
PS you want vacuum not pressure in the crankcase. Makes more power that way.
PS you want vacuum not pressure in the crankcase. Makes more power that way.
Last edited by Powell Race Parts; 01-04-2015 at 07:56 PM. Reason: Automerged Doublepost
#8
New Member
Thread Starter
Thanks for all your replies
My thinking was that because of the vacuum from the exhaust it would automatically pull air in from the cam cover to replace what is being pulled out
In effect you are creating a motion of fresh air which is dragging all the crank gasses out almost straight away
So giving the engine fresh air when ever air is pulled out creating a open system rather than sealed oem one.
Tuning around this is not a issue
My thinking was that because of the vacuum from the exhaust it would automatically pull air in from the cam cover to replace what is being pulled out
In effect you are creating a motion of fresh air which is dragging all the crank gasses out almost straight away
So giving the engine fresh air when ever air is pulled out creating a open system rather than sealed oem one.
Tuning around this is not a issue
Last edited by Ukchilll; 01-05-2015 at 01:14 AM.
#9
New Member
Thread Starter
But as the crankcase gasses in theory are not building up in the system I'm not expecting much oil to get to the catch tank
#11
i tried something similar on mine; gutted the valve cover, tapped a new hole and plugged the other one, and ran the tube right to the exhaust post cat at a 30ish degree angle. we were hoping to increase horsepower this way. it didn't work well; i had a funky idle but that could have been related to something else. but yea it didn't really pull anything through.
#18
Former Vendor
iTrader: (4)
hi all,
Quite new on here but to keep it brief, what do you guys think of this idea for getting rid of the crankcase pressure
I am currently running a 2.2 ecotec with following mods
B207 with 2.2 crank, forged pistons and rods stage 2 LSJ cams,lightened flywheel and balancer delete, home build with vocky input on Dutch ECU software m62 3.1 pulley ported head, now also putting dbilas springs in, 630cc injectors
This month I will soon be adding a Harrop and LS4 Tb and 3" exhaust but would like to get your thoughts on the Pcv system idea before I do the upgrades as I'm currently getting a lot of oily deposits in my intake system and supercharger and probably the intake laminovas are covered
Cheers and look forward to hearing thoughts
Quite new on here but to keep it brief, what do you guys think of this idea for getting rid of the crankcase pressure
I am currently running a 2.2 ecotec with following mods
B207 with 2.2 crank, forged pistons and rods stage 2 LSJ cams,lightened flywheel and balancer delete, home build with vocky input on Dutch ECU software m62 3.1 pulley ported head, now also putting dbilas springs in, 630cc injectors
This month I will soon be adding a Harrop and LS4 Tb and 3" exhaust but would like to get your thoughts on the Pcv system idea before I do the upgrades as I'm currently getting a lot of oily deposits in my intake system and supercharger and probably the intake laminovas are covered
Cheers and look forward to hearing thoughts
exhaust evacuation of blow by gasses. as Axletherod05 says, has been done. Not that successfully in my experience. The problem with any VTA system that you are creating, is that you have to tune around what is basically a massive air leak. You are not drawing any vacuum because you are venting the rocker cover to the air. You would have to make a few holes some place to follow your idea in the drawing, but why dont you try it and see how it works for you? Let us know how it works out.
PS you want vacuum not pressure in the crankcase. Makes more power that way.
PS you want vacuum not pressure in the crankcase. Makes more power that way.
This also works good. Keeps the oil out of the intake.
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