Pcvcvalve termination idea??

jerrys84 · 05-08-2002, 09:46 PM

was talking with a friend of mine the other night.

when you terminate the pcv vlave into the air cleaner or manifold, oil accumulates and makes a heck of a mess..

would'nt it work if you welded an angled connection to the exhaust and run a steel line from the pcv valve to the exhaust??

no more mess..

Mach 1 · 05-08-2002, 10:29 PM

The idea is to use vacuum to pull the fumes from your crankcase. Running the line to your exhaust makes no sense at all

Agent_4573 · 05-08-2002, 10:34 PM

Well technically you could get a little suction using your exhaust. If you managed to get a pipe bent so that you could maintain some type of flow capaticy, your exhaust gasses would haveenought speed to create a pressure difference and form sometpe of suction. Compared to what your manifold creates, its probably ridiculously small...

82stang · 05-08-2002, 10:46 PM

Good idea although.... Read on from Mr. Gasket

Mr. Gasket Crankcase Evacuation System

Built primarily for drag race applications, this system is designed to reduce pressure build-up in the engine crank-case. The results are better piston ring seal, less intake charge contamination, and reduced oil leaks, while increasing engine performance. Includes two chrome plated push-on valve cover breathers, breather grommets, check valves and 3-1/2'' long threaded tubes. Tubes must be welded into collectors.

This must be used with a oil baffle. I had installed this and found that without the baffle plates installed into the valve covers you will pull oil right into the collectors.

Check them out at Jeg's or Summit - $35 or so...

Mach 1 · 05-08-2002, 10:56 PM

I would think you would need Hi temperature check valves to withstand exhaust fumes. Were they metal, or like the plastic PCV valves?

PKRWUD · 05-09-2002, 09:55 AM

The check valves are just like the ones in the smog line going to the cat.

Take care,
-Chris

82stang · 05-09-2002, 10:13 PM

The kit I purchased has steel tube's that I welded into place on the H-Pipe. This is the best idea that I have seen for releasing crack pressure. Everyone I know running a street/strip Mustang has it.

PKRWUD · 05-10-2002, 04:22 AM

They've been around for 50+ years. They don't see as much use anymore because most people these days don't like the oil in the exhaust.

Take care,
-Chris

05-08-2002, 09:46 PM	#1
jerrys84 Registered Member Join Date: Feb 2002 Location: minnesota Posts: 129	Pcvcvalve termination idea?? was talking with a friend of mine the other night. when you terminate the pcv vlave into the air cleaner or manifold, oil accumulates and makes a heck of a mess.. would'nt it work if you welded an angled connection to the exhaust and run a steel line from the pcv valve to the exhaust?? no more mess.. __________________ 91 LX 'work in progress' previous stangs; lightly modded 84GT 81 2.3 converted to 302 auto

05-08-2002, 10:29 PM	#2
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	The idea is to use vacuum to pull the fumes from your crankcase. Running the line to your exhaust makes no sense at all __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

05-08-2002, 10:34 PM	#3
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	Well technically you could get a little suction using your exhaust. If you managed to get a pipe bent so that you could maintain some type of flow capaticy, your exhaust gasses would haveenought speed to create a pressure difference and form sometpe of suction. Compared to what your manifold creates, its probably ridiculously small... __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

05-08-2002, 10:56 PM	#5
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	I would think you would need Hi temperature check valves to withstand exhaust fumes. Were they metal, or like the plastic PCV valves? __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

05-09-2002, 09:55 AM	#6
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	The check valves are just like the ones in the smog line going to the cat. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-08-2002, 10:46 PM	#4
82stang Registered Member Join Date: Mar 2002 Location: Columbus Posts: 5	Good idea although.... Read on from Mr. Gasket Mr. Gasket Crankcase Evacuation System Built primarily for drag race applications, this system is designed to reduce pressure build-up in the engine crank-case. The results are better piston ring seal, less intake charge contamination, and reduced oil leaks, while increasing engine performance. Includes two chrome plated push-on valve cover breathers, breather grommets, check valves and 3-1/2'' long threaded tubes. Tubes must be welded into collectors. This must be used with a oil baffle. I had installed this and found that without the baffle plates installed into the valve covers you will pull oil right into the collectors. Check them out at Jeg's or Summit - $35 or so...

05-09-2002, 10:13 PM	#7
82stang Registered Member Join Date: Mar 2002 Location: Columbus Posts: 5	The kit I purchased has steel tube's that I welded into place on the H-Pipe. This is the best idea that I have seen for releasing crack pressure. Everyone I know running a street/strip Mustang has it.

05-10-2002, 04:22 AM	#8
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	They've been around for 50+ years. They don't see as much use anymore because most people these days don't like the oil in the exhaust. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

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