Topic: Crankcase Evac system
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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Yelm, WA - USA
Joined: 7/12/2007
Posts: 356
Vette(s): 1979 L82 4 speed Scat 383 crank 190 cc Procomp Aluminum Heads 202 160 stainless valves GM Powder metal rods Speedpro H860CP Hypereutectic pistons 280 cam hydralic HEI Pro comp 1.6 roller rockers Mighty Demon 750 Sanderson CC1AP Hedders.
I'm thinking this might be kinda cool on my setup, I know some of you salty old school hot rodders know all about this. Any tips and tricks C3 specific would be cool! I'm pretty sure I won't have any backpressure issues on my exhaust, I peeked into one of my mufflers and I could see the other side of the garage
2.5 mandrel bent x pipe exhaust, Sanderson shorty's 3 inch collecotrs 2.5" reducers.
2.5 mandrel bent x pipe exhaust, Sanderson shorty's 3 inch collecotrs 2.5" reducers. SPONSOR AD:: (Our Sponsors help support C3VR)
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Uh...whachutalkinboutwillis? 
If yer talking about using the one-way valves, and a connection to the exhaust headers for crank evac., that really only works @ high rpm. For a streeter, it would also mean a smoking exhaust...
But...if you do go that route, the only really important thing to remember is to have the tubes going into the collector set/cut on an EXACT 45deg angle, for best evac.
If yer talking about using the one-way valves, and a connection to the exhaust headers for crank evac., that really only works @ high rpm. For a streeter, it would also mean a smoking exhaust...
But...if you do go that route, the only really important thing to remember is to have the tubes going into the collector set/cut on an EXACT 45deg angle, for best evac.
Joel Adams
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Former Member
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Yelm, WA - USA
Joined: 7/12/2007
Posts: 356
Vette(s): 1979 L82 4 speed Scat 383 crank 190 cc Procomp Aluminum Heads 202 160 stainless valves GM Powder metal rods Speedpro H860CP Hypereutectic pistons 280 cam hydralic HEI Pro comp 1.6 roller rockers Mighty Demon 750 Sanderson CC1AP Hedders.
[QUOTE=Adams' Apple]Uh...whachutalkinboutwillis?
If yer talking about using the one-way valves, and a connection to the exhaust headers for crank evac., that really only works @ high rpm. For a streeter, it would also mean a smoking exhaust...
But...if you do go that route, the only really important thing to remember is to have the tubes going into the collector set/cut on an EXACT 45deg angle, for best evac.[/QUOTE]
79rebuild 2008-01-04 11:16:00
If yer talking about using the one-way valves, and a connection to the exhaust headers for crank evac., that really only works @ high rpm. For a streeter, it would also mean a smoking exhaust...
But...if you do go that route, the only really important thing to remember is to have the tubes going into the collector set/cut on an EXACT 45deg angle, for best evac.
[/QUOTE]
Yep thats it exactly! Iit only works at high RPM? I was kind of under the assumption that it pulled at lower RPM's also hmmm... that and it kept oil from purging up into the PCV and breather. Thanks Joel, I'm keep doing my homework on this!
Found this video on Youtube, pretty cool. Looks like he's pulling some vaccum at idle I wonder how much though?
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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