Positive Crankcase Ventilation

RPM427 · 12-11-2002, 01:51 AM

This isn't exactly concerning mustangs but I know you guys can help me out with it.

The racecar I am biulding at school uses a 600cc honda F4i engine. I know that a PCV system (breather with lines runing into the collectors on the headers) can benifit v-8's. Will this benifit my engine which revs to 14,500 rpm? I know some of you gearheads can help me out.

PKRWUD · 12-11-2002, 12:21 PM

That's a crankcase evacuation system, not a PCV system, and sure, it would help any engine that's trying to turn high rpms.

Take care,
~Chris

Murdock · 12-11-2002, 12:44 PM

PKRWUD is right it will help with any engine. It helps remove negative pressure in the crankcase. I would recommend using a clear hose off the breathers, so if it would ever suck oil it would be easy to spot.

Murdock

RPM427 · 12-11-2002, 01:36 PM

Thank you for correcting my terminology. Should I place it right at the collector after the O2 sensor, and what angle should I weld it in at. Thanks.

PKRWUD · 12-11-2002, 02:08 PM

Weld it at a 45 degree angle right at the collector. If you are using O2 sensors, make sure they (the sensors) are in front of it so that any oil that might get sucked out doesn't contaminate them.

12-11-2002, 01:51 AM	#1
RPM427 Registered Member Join Date: Aug 2001 Location: Huntington NY Posts: 573	Positive Crankcase Ventilation This isn't exactly concerning mustangs but I know you guys can help me out with it. The racecar I am biulding at school uses a 600cc honda F4i engine. I know that a PCV system (breather with lines runing into the collectors on the headers) can benifit v-8's. Will this benifit my engine which revs to 14,500 rpm? I know some of you gearheads can help me out. __________________ -1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out!

12-11-2002, 12:21 PM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	That's a crankcase evacuation system, not a PCV system, and sure, it would help any engine that's trying to turn high rpms. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

12-11-2002, 12:44 PM	#3
Murdock Registered Member Join Date: Dec 2002 Location: Columbus, OH Posts: 100	PKRWUD is right it will help with any engine. It helps remove negative pressure in the crankcase. I would recommend using a clear hose off the breathers, so if it would ever suck oil it would be easy to spot. Murdock __________________ LARZRACECARS larzracecars.com

12-11-2002, 01:36 PM	#4
RPM427 Registered Member Join Date: Aug 2001 Location: Huntington NY Posts: 573	Thank you for correcting my terminology. Should I place it right at the collector after the O2 sensor, and what angle should I weld it in at. Thanks. __________________ -1993 Mustang, 900rwhp 03-04 cobra based 4v swap, full Griggs setup, project underway -1994 Ranger w/ 427cid windsor (daily beater) check it out!

12-11-2002, 02:08 PM	#5
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Weld it at a 45 degree angle right at the collector. If you are using O2 sensors, make sure they (the sensors) are in front of it so that any oil that might get sucked out doesn't contaminate them. __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

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