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VACUUM PUMP CATCH CAN
#1430169
05/04/13 03:17 PM
05/04/13 03:17 PM
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Joined: Oct 2007
Posts: 236
Richmond , Virginia
chagjr
OP
enthusiast
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OP
enthusiast
Joined: Oct 2007
Posts: 236
Richmond , Virginia
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After about 16 passes, I had about 16 ounces of oil in the catch can. Is an ounce of oil too much per run, or about right?
1/8 mile shifting at 6700 rpm.
F.A.S.T/1969 SUPER BEE/383/AUTO/AVS 11.58 @ 117.98 1.71 60ft mph F.A.S.T Legal
1969 DART SWINGER/340(420CI)/6.52 @ 105.39 1.45 60ft (1/8 mile)10.22 @130.5 (1/4 mile)
Harry
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Re: VACUUM PUMP CATCH CAN
[Re: chagjr]
#1430172
05/04/13 07:54 PM
05/04/13 07:54 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I can go about 60 runs then I drain out about 10 oz but I have a good baffle and the vac is at 12"hg EDIT This is on a dry sump system... when I ran a vac pump on a normal oiling system it was the same 
Last edited by MR_P_BODY; 05/04/13 07:56 PM.
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Re: VACUUM PUMP CATCH CAN
[Re: MR_P_BODY]
#1430173
05/04/13 11:35 PM
05/04/13 11:35 PM
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Joined: Oct 2007
Posts: 236
Richmond , Virginia
chagjr
OP
enthusiast
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OP
enthusiast
Joined: Oct 2007
Posts: 236
Richmond , Virginia
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THANKS  !
F.A.S.T/1969 SUPER BEE/383/AUTO/AVS 11.58 @ 117.98 1.71 60ft mph F.A.S.T Legal
1969 DART SWINGER/340(420CI)/6.52 @ 105.39 1.45 60ft (1/8 mile)10.22 @130.5 (1/4 mile)
Harry
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Re: VACUUM PUMP CATCH CAN
[Re: pattyboy 572]
#1430174
05/05/13 10:48 AM
05/05/13 10:48 AM
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Joined: Mar 2006
Posts: 9,865
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,865
MI, usa
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Quote:
Had a similar problem ...much more collected each run, than 1 oz....installed restrictors to 440-1 head .030.. welded baffle @ suction side fitting.....approx. 1-2 tablespoons per run.. all fixed.. make sure no leaks as mentioned earlier...use evap smoke diagnosis tool works great for leak detection
The 1st time I mounted mine I was puling from the fuel pump block off area. It has a Jessel so I thought it would work, wrong. It didn't even make it out of the garage with out blowing oil out of the can. I relocated to the front of the valve cover. Made 5 full passes, 2 1/8 passes. not even 1oz in the can. No baffles in the cover.
Doug
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Re: VACUUM PUMP CATCH CAN
[Re: dvw]
#1430175
05/05/13 03:20 PM
05/05/13 03:20 PM
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Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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I was plagued with this issue. Had a pickup line in the front of the valve cover. Make a run and oil running out of the 1 pint tank. Dealt with it for a long time.
Started shutting off on top end to pull back to the trailer. Not hardly a drop of oil if I killed the engine quick enough when the chute opened. So it worked out for a while until we burnt a piston then you would have a full tank.
I ran the Moroso on the NA engine as well but did not tow back. As long as I killed the engine before stabbing the brakes all was fine. I later went with a star pump and it pulled a lot more vacuum at idle. Funny I saw less oil in the tank with more vacuum.
Had a lifter bushing issue and Ryan had to replace them. After that we had a lot more oil up top. Then back to dumping the puke tank every run. I wanted to come up with another pick up point in the middle of the valve cover this way taking off or stopping would not rush oil to the baffle. Then I had plans of running a tank in between the motor and the pump. Only thing was I planned to remove the pet cock to drain it and just run a #4 back to the pan so it would self drain the tank between runs. Then any junk would still go to the normal puke tank. Never got around to it.
Run a dry sump now and do not have the vacuum I desire. So maybe getting into this again.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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