![SEARCH](http://www.mustangworks.com/images/search.png)
![The Mustang Works](http://www.mustangworks.com/images/mw_footer_logo.gif)
© Copyright 1995 thru 2008 - The Mustang Works™. All Rights Reserved.
MustangWorks.com is designed and hosted by Aero3 Media.
MustangWorks.com is designed and hosted by Aero3 Media.
![]() |
#1 |
Registered Member
Join Date: Jun 2001
Location: Under the hood
Posts: 164
|
![]() Does anyone run a header mounted crankcase evacuation systems on a street-strip car? I've seen the kits in catalogs and seems to me to be better at reducing internal pressure than hooking it up to engine's intake vacuum. Because when you stomp the gas engine vacuum drops really low, when you need it the to be the highest to get a better intake charge. These kits always come to fit on both valve covers, is this necessary or can you just hook it up to one valve cover and run it to one of the headers? The stock PCV only comes out of one cover. Any ideas or comments would be appreciated.
------------------ 65 fastback 347 DFI injected, TFS heads, T5, 4.11 9", tc subframe conns, torq thrust D's A little history lesson using today's tech. |
![]() |
![]() |
![]() |
#2 |
Registered Member
Join Date: Sep 2001
Location: agawam ma usa
Posts: 39
|
![]() I set one of these systems up on an engine to eliminate the PCV. I used a dodge oil cap several feet of heater hose a diverter valve connected to a pipe and an open breather on the other valve cover for crossflo. the pipe is cut at 45deg angle and welded into the headder collector so the open part is facing rear,this creates a vacume to scavenge the crankcase,the diverter valve(the oneway valve from an AIR system)keeps exhaust from going back to engine.This gives higher manifold vacume if you eliminate the PCV completly.worked good
|
![]() |
![]() |
![]() |
#3 |
Registered Member
Join Date: Jul 1999
Location: INDIANAPOLIS
Posts: 404
|
![]() They work good with open exhaust. A friend of mine did it with mufflers on. Didn't work to well. It ended up creating crankcase pressure ! Blew oil out all over the engine. He was running 3" tubes with flowmasters on a 66 mustang, running low tens. Basicly what we had figured out is that there is too much backpressure with mufflers on.
------------------ 302,vortech s trim @18-20lbs showing,edelbrock performer heads-o ringed,gt 40 upper&lower, mac 1 5/8"long tubes, sub frame connectors,50/50 rear, 70/30 front, manual rack,3:55 gears, c4 , best time 10.13@135mph |
![]() |
![]() |
![]() |
#4 |
Registered Member
Join Date: Jun 2001
Location: Under the hood
Posts: 164
|
![]() I was thinking about the backpressure. I don't know what muffler if any that doesn't make too much backpressure that enable to use the kit. I am using 2.5" Delta flow Flowmasters. If I were to use the header mount kit I would put a check valve to keep exhaust from going back up the tube, but if there isn't ever enough vacuum to suck the air out the pipes the whole thing will do nothing as long as the mufflers are making backpressure? What else would clear out crankcase vapors like that without going to a belt-driven vacuum pump? Thanks for the info guys.
|
![]() |
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
351W crankcase evacuation | jse9 | Windsor Power | 19 | 09-03-2004 12:00 AM |
Header and Exhaust Installation | 1991GT | Windsor Power | 4 | 12-03-2002 11:17 PM |
Whats the going price for long tube header installation? | Dark_5.0 | Modular Madness | 3 | 09-19-2002 03:29 PM |
Header Gasket Help Needed | Phillip Long | Windsor Power | 5 | 05-03-2002 01:59 PM |
Stage 8 header bolts? | Rev | Blue Oval Lounge | 8 | 01-13-2002 11:38 PM |