Re: PCV, EVAC or PUMP
[Re: 4mopower]
#3224742
04/03/24 01:27 PM
04/03/24 01:27 PM
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Joined: Oct 2005
Posts: 269 Anchorage, Alaska
metallicareload
enthusiast
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enthusiast
Joined: Oct 2005
Posts: 269
Anchorage, Alaska
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I would also like to know, I’m curious if anyone has tried using an OEM vacuum pump a lot of the European cars have? I use a PCV valve on one valve cover and a breather on the other. Definitely use a catch can
440, 4-Speed, 3.54 1968, when Dinosaurs ruled the Earth
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Re: PCV, EVAC or PUMP
[Re: 4mopower]
#3224756
04/03/24 02:20 PM
04/03/24 02:20 PM
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Joined: Oct 2003
Posts: 4,013 South Park, Pa.
68LAR
master
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master
Joined: Oct 2003
Posts: 4,013
South Park, Pa.
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At what point did you step up on a street driven BB. Is Evac usable on the street? would you use a oil catch with the Evac? Breather on one cover and evac on the opposite side? Or two evac's? I run an evac on my race/street stroker. It pulls 5 inches at idle. Two breathers, one on each side in valve covers. Been like this for at least twenty years with no issues. I would guess that a lot would depend on the cam specs. What I have works for my set up very well.
Last edited by 68LAR; 04/03/24 02:22 PM.
4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
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Re: PCV, EVAC or PUMP
[Re: 4mopower]
#3224768
04/03/24 02:38 PM
04/03/24 02:38 PM
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Joined: May 2019
Posts: 712 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 712
Lake Villa Il
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I run a GZ vacuum pump on the street. Works great, I'm happy with it.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: PCV, EVAC or PUMP
[Re: INTMD8]
#3224890
04/03/24 10:01 PM
04/03/24 10:01 PM
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Joined: Jan 2004
Posts: 4,566 Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,566
Motor City
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I run a Moroso advanced 4 vane for street/strip use works great also.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: PCV, EVAC or PUMP
[Re: 4mopower]
#3225667
04/07/24 07:04 PM
04/07/24 07:04 PM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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I was recently thinking about the evac setup bc I am pushing oil out breathers at higher rpm. However, trying to figure out how Not to kill my o2 sensors in the collectors. So, I put it off for now. Just another thought if you run o2 sensors.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: PCV, EVAC or PUMP
[Re: 68LAR]
#3225675
04/07/24 07:43 PM
04/07/24 07:43 PM
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Joined: Mar 2006
Posts: 9,834 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,834
MI, usa
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At what point did you step up on a street driven BB. Is Evac usable on the street? would you use a oil catch with the Evac? Breather on one cover and evac on the opposite side? Or two evac's? I run an evac on my race/street stroker. It pulls 5 inches at idle. Two breathers, one on each side in valve covers. Been like this for at least twenty years with no issues. I would guess that a lot would depend on the cam specs. What I have works for my set up very well. How do you get 5"hg at idle with breathers? Doug
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Re: PCV, EVAC or PUMP
[Re: dvw]
#3225697
04/07/24 10:16 PM
04/07/24 10:16 PM
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Joined: Nov 2004
Posts: 16,477 On the run…
BloFish
I Live Here
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I Live Here
Joined: Nov 2004
Posts: 16,477
On the run…
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My simple set up.
Last edited by BloFish; 04/08/24 12:27 PM.
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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Re: PCV, EVAC or PUMP
[Re: Chargerfan68]
#3225715
04/08/24 06:19 AM
04/08/24 06:19 AM
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Joined: Feb 2015
Posts: 162 Chicago-area Illinois
4mopower
OP
member
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OP
member
Joined: Feb 2015
Posts: 162
Chicago-area Illinois
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Chargerfan68 - I am running O2 sensors but I was thinking of moving the check valve downstream of the collector.
Last edited by 4mopower; 04/08/24 06:24 AM.
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Re: PCV, EVAC or PUMP
[Re: dvw]
#3225721
04/08/24 07:25 AM
04/08/24 07:25 AM
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Joined: Oct 2003
Posts: 4,013 South Park, Pa.
68LAR
master
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master
Joined: Oct 2003
Posts: 4,013
South Park, Pa.
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At what point did you step up on a street driven BB. Is Evac usable on the street? would you use a oil catch with the Evac? Breather on one cover and evac on the opposite side? Or two evac's? I run an evac on my race/street stroker. It pulls 5 inches at idle. Two breathers, one on each side in valve covers. Been like this for at least twenty years with no issues. I would guess that a lot would depend on the cam specs. What I have works for my set up very well. How do you get 5"hg at idle with breathers? Doug I don’t know to be truthful. I installed the evacuation system and checked it with a vacuum gauge and this is what I got. I do know that on the street, you need straight thru mufflers. Chambered mufflers have too much back pressure. Maybe this is why it works for me. I run Magnaflows.
4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
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Re: PCV, EVAC or PUMP
[Re: 68LAR]
#3225733
04/08/24 08:42 AM
04/08/24 08:42 AM
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Joined: Jan 2003
Posts: 13,360 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,360
Marion, South Carolina [><]
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For a mostly street car, I like two big hoses (-10). One on each valve cover to a breather tank. No pcv or pump.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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