Ultimate PCV/crankcase evacuation thread

19MUSTANG95 · 04-04-2007

After a couple of times at the dyno I realized I was getting a lot of crankcase pressure after my turbo installation. So I did some research and there is a lot of options of what you can do. I thought it would be great if everyone could give there opinion on the best way to get rid of this problem and the set ups you have. Pictures would be great.

J&SPolishing · 04-04-2007

Some people claim that under boost the pcv system will pressureize that crank case. You can put a one-way on the pcv hose and see if that works. I have also seen the pcv hole plugged and a pair of breathers run on the valve covers, I have done that and it worked pretty good. The last set up we did, we are running two -10 hoses from the front of the vavle covers running to an electric vacuum pump mounted in the fender well, and running to a breathered catch can. We havn't driven it on the street yet, but works well on the dyno and the track.

hotwheels · 04-04-2007

This is what erich was going to do, but i can't remember if he posted back on how it worked or not: http://www.insanemustangs.com/forums...ght=evacuation (Crankcase evacuation: the old and the new)

Beernut · 04-04-2007

Quote:

Originally Posted by 19MUSTANG95

After a couple of times at the dyno I realized I was getting a lot of crankcase pressure after my turbo installation. So I did some research and there is a lot of options of what you can do. I thought it would be great if everyone could give there opinion on the best way to get rid of this problem and the set ups you have. Pictures would be great.

How is yours set up now??

I have been looking into and asking about this aswell. The BEST setup by far is a vacume pump!! expensive but it is the "best". Im not going the expensive route lol so Im unsure as of now what Im gonna do..

I think erich DID do his like that, I rember seeing pics of it.

I would say, test your PCV.. IF your not pushing boost into the crankcase you can make a few dyno flogs with out buliding up too much crankcase pressure. MOST of the time PCV valves are JUNK.. I have like 20 new valves laying around the shop.. all from different MFGs and for different year/makes/models and 75% leak out the box..

19MUSTANG95 · 04-05-2007

I just have both valve covers going into a catch can with a breather.

J&SPolishing · 04-05-2007

Have you done a leak down? You should. If you are blowing alot of vapor or oil out of the breather with no pcv, chances are you are blowing past the rings.

hotwheels · 04-05-2007

That's a great point jim..........

Beernut · 04-05-2007

Quote:

Originally Posted by 19MUSTANG95

I just have both valve covers going into a catch can with a breather.

what size lines running to the catch can??

I agree with jim... 2 breathers and no pcv and your still having issues I would do a leakdown test. Unless your lines to the catch can are TINY!! lol lol

19MUSTANG95 · 04-05-2007

Im not quite done with the set up. I just changed to it. I just had the pcv and didn't like it so I switched.

04-04-2007	#1 (permalink)
19MUSTANG95 Gold Member Join Date: Aug 2006 Posts: 175 iTrader: (0) Friends: (2) Last Online: 04-30-2009 07:56 AM Time Spent Online: 25 Minutes 10 Seconds My Album's: 19MUSTANG95's album Thanks: 0 Thanked 0 Times in 0 Posts	Ultimate PCV/crankcase evacuation thread After a couple of times at the dyno I realized I was getting a lot of crankcase pressure after my turbo installation. So I did some research and there is a lot of options of what you can do. I thought it would be great if everyone could give there opinion on the best way to get rid of this problem and the set ups you have. Pictures would be great.

04-04-2007	#2 (permalink)
J&SPolishing Junior Member Real Name: Jim Join Date: Oct 2006 Posts: 400 iTrader: (0) Friends: (3) Last Online: 8 Hours Ago 10:50 PM Time Spent Online: 3 Days 7 Hours 1 Minute 56 Seconds My Album's: J&SPolishing's album Thanks: 0 Thanked 3 Times in 3 Posts	Some people claim that under boost the pcv system will pressureize that crank case. You can put a one-way on the pcv hose and see if that works. I have also seen the pcv hole plugged and a pair of breathers run on the valve covers, I have done that and it worked pretty good. The last set up we did, we are running two -10 hoses from the front of the vavle covers running to an electric vacuum pump mounted in the fender well, and running to a breathered catch can. We havn't driven it on the street yet, but works well on the dyno and the track. Attached Thumbnails

04-04-2007	#3 (permalink)
hotwheels Car Enthusiast Real Name: Doug Join Date: Aug 2006 Location: Cheyenne, Wyoming Posts: 21,165 MySpace ID: insanemustangs_com Facebook ID: Insanemustang Mustangs Twitter ID: insanemustangs iTrader: (0) Friends: (416) Last Online: 1 Day Ago 07:58 AM Time Spent Online: 3 Weeks 6 Days 6 Hours 31 Minutes 32 Seconds My Album's: hotwheels's album My Garage: hotwheels's Garage Thanks: 3 Thanked 40 Times in 39 Posts	This is what erich was going to do, but i can't remember if he posted back on how it worked or not: http://www.insanemustangs.com/forums...ght=evacuation (Crankcase evacuation: the old and the new) __________________ Webmaster in training and owner of a mini Jay Leno Poorman's car collection

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04-05-2007	#5 (permalink)
19MUSTANG95 Gold Member Join Date: Aug 2006 Posts: 175 iTrader: (0) Friends: (2) Last Online: 04-30-2009 07:56 AM Time Spent Online: 25 Minutes 10 Seconds My Album's: 19MUSTANG95's album Thanks: 0 Thanked 0 Times in 0 Posts	I just have both valve covers going into a catch can with a breather.

04-05-2007	#6 (permalink)
J&SPolishing Junior Member Real Name: Jim Join Date: Oct 2006 Posts: 400 iTrader: (0) Friends: (3) Last Online: 8 Hours Ago 10:50 PM Time Spent Online: 3 Days 7 Hours 1 Minute 56 Seconds My Album's: J&SPolishing's album Thanks: 0 Thanked 3 Times in 3 Posts	Have you done a leak down? You should. If you are blowing alot of vapor or oil out of the breather with no pcv, chances are you are blowing past the rings.

04-05-2007	#7 (permalink)
hotwheels Car Enthusiast Real Name: Doug Join Date: Aug 2006 Location: Cheyenne, Wyoming Posts: 21,165 MySpace ID: insanemustangs_com Facebook ID: Insanemustang Mustangs Twitter ID: insanemustangs iTrader: (0) Friends: (416) Last Online: 1 Day Ago 07:58 AM Time Spent Online: 3 Weeks 6 Days 6 Hours 31 Minutes 32 Seconds My Album's: hotwheels's album My Garage: hotwheels's Garage Thanks: 3 Thanked 40 Times in 39 Posts	That's a great point jim..........

04-05-2007	#9 (permalink)
19MUSTANG95 Gold Member Join Date: Aug 2006 Posts: 175 iTrader: (0) Friends: (2) Last Online: 04-30-2009 07:56 AM Time Spent Online: 25 Minutes 10 Seconds My Album's: 19MUSTANG95's album Thanks: 0 Thanked 0 Times in 0 Posts	Im not quite done with the set up. I just changed to it. I just had the pcv and didn't like it so I switched.

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