Whats your proper PCV-Catchcan system? (turbo yamaha)

[Phoenix]

I want to know how yours is plugged , I want to know what is plugged where.

-The valve cover vent
-The channel valley vent
-The Throttle body vent (the big one under)
-The middle sized vent on the intake (next to the top of the throttle body)
-The small one on the front of the intake (the one that goes to EVAP) Is capped. (shogun - dont need that sht)

PS: I got a catch can that needs to go in this.

 

[Ocnaj]

I want to know how yours is plugged , I want to know what is plugged where.

-The valve cover vent
-The channel valley vent
-The Throttle body vent (the big one under)
-The middle sized vent on the intake (next to the top of the throttle body)
-The small one on the front of the intake (the one that goes to EVAP) Is capped. (shogun - dont need that sht)

PS: I got a catch can that needs to go in this.

I have my valve cover and valley vents y'ed into one bigger line going into a vented catch can.

Everything else is plugged/capped. I was also thinking of making a vent on the rear valve cover too in the future when the car is on higher boost.

 

[Phoenix]

I have my valve cover and valley vents y'ed into one bigger line going into a vented catch can.

Everything else is plugged/capped. I was also thinking of making a vent on the rear valve cover too in the future when the car is on higher boost.

Thanks , but does the catch can smells sometimes since its vented? I really hate that smell and I would hate to have to live with it.

 

[Off Road SHO]

Same here on The Other Woman but no catch can, just a hose with an air filter on it.

Tom

 

[Irish Pride]

What I was planning to do on my 89 was run a hose from the top of the block to a catch can and then back to the lower connection on the bottom of the throttle body. Basically keep it routed like it is now but have the can in line. Then I was going to put a filter on the valve cover and cap the spot on the intake. My evap line still runs to the solenoid but just hangs loose after that.

 

[Ocnaj]

Thanks , but does the catch can smells sometimes since its vented? I really hate that smell and I would hate to have to live with it.

Yeah sometimes but not that bad. Although you can't really help that since plugging the catch can would be a big no no.

 

[Phoenix]

What I was planning to do on my 89 was run a hose from the top of the block to a catch can and then back to the lower connection on the bottom of the throttle body. Basically keep it routed like it is now but have the can in line. Then I was going to put a filter on the valve cover and cap the spot on the intake. My evap line still runs to the solenoid but just hangs loose after that.

Thats what I thought too , until I was thinking of the boost , since the TB gets boost , wouldnt the boost creep up in the catch can lines , going IN the channel valley vent (which is an exit normally) and pushing in the crank case?

 

[Phoenix]

Bump ?

Also , would boost be bad for the brake booster?

 

[shomethe$$$]

Do it like Ocnaj already said, everything on the TB and intake must be capped off. The engine block valley PCV hose must be vented or routed to the catch can. Same for the valve cover. You can't put the catch can inline with the TB inlet's, even with a check valve, it will blow the oil right back out when it pressurizes.

I never had the factory fuel pressure regulator on long enough but it should be on the intake with clamps, but I wouldn't hope for much fuel pressure regulation once your into boost, I highly doubt its a 1:1 system. You have to go with shonut's aftermarket with its vacuum line routed directly from the intake.

The butterfly actuator vacuum should be routed to the intake but you may need a check valve so the canister doesn't pressurize. A turbo guy may be able to answer this better. Same for the evap purge line, must be in vacuum or blocked.

The brake booster should already have a check valve right before it but I highly doubt it will hold boost pressure for long, some boost will creep past it and your brake pedal will go rock hard. But at first put it where it is now w/ the check valve, take a few road tests, if it doesn't stay under vacuum then someone maybe able to answer this better. Not an issue for us S/C guys w/ the TB before the inlet of the S/C.

Venting it stinks and it always seems to come inside the car, I just deal with it. A catch can should help but it still stinks. But its better than it going in the engine, it lower's your octane and puts a nice oil layer inside your intake.