FrontEngineDragsters.Org Forum
Technical => Matt Shaff's Engine Shop => Topic started by: hemidakota on October 17, 2018, 08:44:13 PM
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So I would assume there are a few members here running dry sump systems. I would like to see pics of how everyone is doing it. I just pulled the trigger on a dry sump system for a few reasons. Mainly due to my heads having terrible oil return. At this point I have invested a lot of money and want to keep it happy for many years to come. I got a Peterson 5 stage set up, 3 from the pan and one from the top end is my plan. Thanks Greg
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I run a Peterson external wet system. It works great.
A dry sump might be next. Peterson makes great stuff.
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I run a Peterson 4-stage system two in the pan with a third in the pan that also T-s into the valley.
I also run a 3-gallon Peterson tank
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ran a 4 stage dry sump in a inboard so the pump was driven from the flywheel side after a full season the bearings were like new 2 pick-ups in the pan one in the valley and the pressure in at the filter pad
Stef made the pans and tanks
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sorry I flushed the pics I had of the dry sump as i didn't need them and no longer involved with that assoc.
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I'm running a dry sump, Peterson tank, Peterson R4 pump, 50% crank speed, 4 pick ups in the oil pan, N&P oil pan and a Peterson in line filter. There is also a star mountain motor vac pump pulling from the valve cover. Will attach some pictures tomorrow
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So I gotta ask, Paul how much vacuum do you see in the engine? Coupemerc you have a very different set up, how much vacuum do you pull? I worked at weaver brothers as a kid and dry sumps pulled crazy vacuum back in the day but now a days it is not the same. I only want 10 to 12" unless I am missing something. I am not looking for every bit of power as for I am going to have to slow it down to do what I want. I just want to go over 200 mph some day.
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I don’t have a data logger on my car so no clue
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If it's a wet sump you are just fine at 10 to 12 inches !
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My set up is making 13" going down the track. It made more on the dyno which is a bit puzzling? Seems to me the gasoline combinations are capable of making the big vacuum numbers. Tougher to seal the rings on methanol.
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Coupemerc how much oil do you run in your set up? It appears I have the same system, 1.2" pressure and 1.4" scavenge 5 stage and the same tank. Thanks. Figured you were pulling way more vacuum, interesting. The money we spend to go fast...
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I put 10 Quarts of oil in mine if it's completely dry, 9 quarts on a change. You need the tank to be about 1/2 to 2/3 full with the oil hot and motor at about 3000rpm. The only "downside" to mine so far is that it's making insane oil pressure. 100 psi just off idle and who knows where it is at 10.2K? I've been working at bringing that way,way down. Even with the super high oil pressure, the bearing still look good. Bringing the the pressure down to something reasonable will help free up some power and allow the DS and Vac systems to work better. The motor pulled 18" of vacuum on Iaconio's dyno.