Re: Dry Sump Systems
[Re: mopar_mark]
#1041540
07/27/11 07:37 PM
07/27/11 07:37 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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Quote:
Hi All, Looking for advice on Dry sump system for my TT hemi project.
To be honest my knowledge in this area is virtually nil, other than what I have read or vendor articles, can any one offer real world experience advice . . .
3 Stage v 4 Stage,choices/recommendations. when is what necessary ?
Dry sump choices/recommendations, etc, etc, etc . . . .
I run a 4 stage... understand that the pump section is also call one of the stages... anyways I would recommend at least 2 stages in the pan... I have a vertical wall in my pan so its basically 2 halves but not sealed with 1 stage in each half... I also have a dry sump block so the intake valley is sealed so I have to run 1 stage in the valley... you'll need a pump, belt, drive arbor, holding tank, vent tank and I recommend a screen filter in each suction line to help save the pump if you have any breakage
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Re: Dry Sump Systems
[Re: Twin Turbo Mower]
#1041543
07/27/11 11:40 PM
07/27/11 11:40 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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Quote:
pbody do you run a vacuum pump along with it?
No... the pump itself pulls 11"-12" at revs
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Re: Dry Sump Systems
[Re: Twin Turbo Mower]
#1041545
07/28/11 11:03 AM
07/28/11 11:03 AM
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Joined: Mar 2007
Posts: 572 Shelbyville, TN USA
40ford
mopar addict
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mopar addict
Joined: Mar 2007
Posts: 572
Shelbyville, TN USA
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This is hopefully an informative post based on my experiences:
We have used gear belt driven pumps for years---generally known as "Weaver" systems. These use a driven gear and an idler gear inside a machined housing that creates either pressure or vacuum. If only one section is used, then it provides pressurized oil to feed the engine. If you add additional sections, they provide vacuum to suck the oil out of the engine and return it to a remote tank. I've seen two stage pumps used(one pressure/one vacuum) on up to as many as seven sections. And there are different widths of sections. Wider sections provide more than narrow sections.
My experience is with crank driven systems----and gearbelt driven at that. Generally, you drive the pump at half crank speed----you can vary that ratio some but not much.
Now for the little known part----these systems have been used on oval track engine for years---I have one pump that is 40 years old----thousands of miles at race speeds---still in good condition. These things show up used all the time. I've paid as little as $15 at auction but generally are around $150 up. Some later pumps will go for $400-500 but they are almost new from a good source.
About the only thing that needs to be done is periodically replace the aluminum sections---no big deal, fairly cheap, can be done by the individual, pay attention to what you are doing. When reassembled almost good as new.
A dry sump pump is needed on any engine that goes to 9000RPM. The standard pump just won't keep up. Plus, a good pump will provide up to 12-13" of vacuum(on gas). But, go to methanol it won't provide that much vacuum----you will need a vacuum pump also.
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Re: Dry Sump Systems
[Re: mopar_mark]
#1041547
07/28/11 02:23 PM
07/28/11 02:23 PM
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Joined: Jan 2003
Posts: 2,926 A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,926
A shed in England
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Another option is the "Missle Pump" http://www.razorperformance.com/mopar.htmHTH's
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Dry Sump Systems
[Re: Tig]
#1041548
07/28/11 02:56 PM
07/28/11 02:56 PM
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Joined: Nov 2003
Posts: 1,664 North Sweden
RT540
top fuel
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top fuel
Joined: Nov 2003
Posts: 1,664
North Sweden
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Hi Mark, My real world experience is limited to running a 3-stage Weaver spur gear pump, so take my post as my personal opinion. Different pump gears and sizes makes a huge difference in how much oils and vacuum each section sucks. The best pumps have roots style lobes which makes them pump air much better than an spur gear pump, and with a pump sized correctly, you might even get away with an adding an vacuum pump. If it is possible for a twin turbo on methanol, ? donīt know. I would go with a 5 or 6 stage pump, 5 is easier to plumb with four suctions in the pan. There are plenty of good roots style pumps to choose from, like Peterson R4, Barnes and my favorite Autoverdi from Sweden.
I would advice not to use light weight hoses as earlīs pro-lite 350 even with a inner support spring on the suction lines. I am going to use regular steel braided on those.
Tom
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Re: Dry Sump Systems
[Re: RT540]
#1041549
07/28/11 06:16 PM
07/28/11 06:16 PM
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Joined: Feb 2003
Posts: 912 London, England
mopar_mark
OP
super stock
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OP
super stock
Joined: Feb 2003
Posts: 912
London, England
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Guys, thanks for your input so far & will check out the suggestions, plus I will continue to have a read up & see what I can learn . . . Just to clarify; I'm Not looking to turn max RPM, I had concerns in loosing oil under hard acceleration conditions. Tom, I'm Staying with pump gas, until they start selling alcohol at my local local gas station Cheers, Mark . . .
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