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Author
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Topic: pcv valve with boost
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4RS FED
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Member # 2067
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posted
 
 
what do all you supercharger guys do with it....
i have been boosting all around town, and got oil everywhere on the firewall ![[Mad]](mad.gif)
right now the pcv valve is open, and has nothing there......
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i have a twin turbo mustang and you don't!
Posts: 3686 | From: 650 | Registered: Nov 2002
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Jeff S
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Member # 371
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posted
Are you runing any open element breathers on the valve covers? Did you disconnect the line running from the oil fill to the TB?
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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93PONY
Mr. Valve Events
Member # 60
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posted
You must make SURE you have NO boost entering the crankcase. Either through the PCV, or through the TB to VC hose like Jeff stated.
You'll want to run at least 2 one-way check-valves. One in line to the PCV & one to the vacuum tree. This along with not running a line from the TB to Valve cover should take care of boosting things that should not be boosted.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000
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sac 5.0
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Member # 2980
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posted
rob
i have heard of people using one way check valves dont know if that would help you out put it would lett the air in the crank case but not out i think
joe
Posts: 1021 | From: sac | Registered: Jun 2003
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4RS FED
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Member # 2067
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posted
i have everything sealed.....
the thing that goes from the throttle body to the oil fill both have a cap over them with a hose clamp....
the pcv area is open, i cant find my grommet that i had
i havent run any check valves???? where do i get these from??
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i have a twin turbo mustang and you don't!
Posts: 3686 | From: 650 | Registered: Nov 2002
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98slowhoe 'FIFTYLX'
Uncle Frank
Member # 895
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posted
from what Shaun has told me before they are not the easiest things to get a hold of. I think you can go to the junk yard and grab them off of brake boosters, or just wait for shaun to post again and he will tell you.
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AKA Franky Freaking 5 liter
Advanced Engine Development
SCT dealer
Dynotuning
Engine building
916*275*8212
88 4runner on 42's
Posts: 4206 | From: Folsom | Registered: Feb 2002
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MR GO FAST
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Member # 2088
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posted
quote:
Originally posted by 4RS FED:
where do i get these from??
call me tomorrow and ill tell you were your boy frank gets them.
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1986 Gt that is faster than FOSTANGS pinto
Posts: 3729 | From: ATWATER/SANJO/RWC | Registered: Nov 2002
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98slowhoe 'FIFTYLX'
Uncle Frank
Member # 895
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posted
well personally I am gona run a hose right off the PCV valve opening into an overflow tank that is filtered. If I remember right JeffS just ran a hose off the back out to the open. I am sure there are a hundred million different ways. 93pony has a little set-up that puts a vacum pressure in the crank case using one-way valves.
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AKA Franky Freaking 5 liter
Advanced Engine Development
SCT dealer
Dynotuning
Engine building
916*275*8212
88 4runner on 42's
Posts: 4206 | From: Folsom | Registered: Feb 2002
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Blu50Stang
CAFords OG
Member # 489
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posted
I removed the hose that goes from the throttle body to the valve cover. Then put a cap on the throttle body and valve cover and have a breather. With 10lbs from my Novi 2000, I haven't had any problems. Before I removed that line, I could shoot the PCV valve out of the lower with maybe 5lbs of boost.
Try those one way check valves.
[ January 18, 2004, 05:58 PM: Message edited by: Blu50Stang ]
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Ross
'88 GT - 5.0&SF 4/04 | MM&FF 8/09 | MM&FF 79-93 Mustang Performance Cover 12/12
'17 GT350R
Posts: 1916 | From: Not CA | Registered: Oct 2001
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2stangs69-91
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Member # 1951
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posted
Stock mustang pcv valves don't seal out the boost. You need to get a Turbo coupe PCV Valve Part# E5ZZ-6A666-A. Run the motorsports EFI breather and plug the vent line at the TB and oil fill. Thats what I did, I was having the same problem as you when I first installed my Vortech a month ago.
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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93PONY
Mr. Valve Events
Member # 60
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posted
quote:
Originally posted by STOKED:
2stangs69-91 - just curious, wouldn't you be bringing in unmetered air with your setup at vacuum with the breathers on the valve covers and still having a pcv valve that functions?
That is correct. He IS bringing in un-metered air with that setup.
Either go breathers & plug the PCV, or run the stock PCV setups & NO breathers. Otherwise, you'll suck in un-metered air through the breather....& most likely some oil with it.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000
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1SLOWLX
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Member # 558
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posted
put a breather on there and vent the crankcase
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Built Tuff with your stuff ;)
Posts: 5231 | From: bay area | Registered: Nov 2001
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2stangs69-91
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Member # 1951
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posted
I guess there might be a slight bit of un metered air at idle and cruise but not enough to cause a problem or even worry about. My car idles and cruises great. E-cam no surges at idle or cruise. No unmetered air at Boost(which I really care about) This is how alot of supercharged car's are set up. The best part about this set up is no oil blowing out the dipstick tube any more. You need to be able to vent under boost and the stock system isn't big enough. You won't suck in any extra oil either because you are pulling in fresh air from the breather when you are not under boost and venting any extra crankcase pressure out the filter when you are boosting(which is when your oil is being pushed out at) As for the unmetered air all you are pulling in is what the pcv valve is pulling in which isn't very much BTW the stock PCV valve doesn't seal under boost so what ever boost you have you are pumping into the crankcase. The turbo coupe PCV valve does seal off underboost so it acts as a one way(check)valve. I re-read your post again did say you had nothing were your PCV valve is supposed to be? I wouldn't drive it anymore until you get that found and fixed
[ January 21, 2004, 10:27 AM: Message edited by: 2stangs69-91 ]
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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