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Oil Pressure Drop at Higher RPM

Posted By charliemccraney 8 Years Ago
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Lord Gaga
Posted 8 Years Ago
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Should be OK now. That bell shaped P/U was wrong for that pan. Never seen one like it...what did it come off of?


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charliemccraney
Posted 8 Years Ago
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It came off of a Y-Block, with that oil pan.
I have three other truck pans and pickups which are off of engines and they are the type of pan without a baffle and have the removable screen type of pickup.  One is an HD truck pan.  Maybe the baffled pan came with the bell shaped pickup.
When I used the non baffled pan, the pressure would drop considerably when coming to a stop.  Maybe they revised the pickup position when they added the baffle, to prevent that.


Lawrenceville, GA
DryLakesRacer
Posted 8 Years Ago
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Have you ever thought of making your own pickup? I looked at a lot of them and found a rectangular one where the line was on the side or at a slight angle up from one of the sides and not the top for my GMC 6. I found some 7/8" dia. steel tubing with some bends, cut, and welded until it was where I wanted. I believe it was a Moroso for a pretty large engine like a FE or Pontiac. As I remember the tubing on the pickup was a little smaller than the -12 bulkhead fitting I welded on and the sealed to the pan.. Good Luck.

56 Vic, B'Ville 200 MPH Club Member, So Cal.
Y block Billy
Posted 8 Years Ago
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I think your on the right track with cavitation issue, are you restrickting flow to the top at all? The FE guys swear by running 1 quart over because they say the FE's will suck the pan dry on a hard run.

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?

charliemccraney
Posted 8 Years Ago
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I've pinched the overflow tubes so that they have about a 1/32" opening.


Lawrenceville, GA
tomfiii
Posted 8 Years Ago
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It's from a x-block article about cavitation.
http://www.enginelabs.com/news/moroso-offers-an-expanded-line-of-performance-wet-sump-oil-pumps/
charliemccraney
Posted 8 Years Ago
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The link goes to what is essentially an advertisement for Moroso Oil pumps.  Is that what you meant to link?



Lawrenceville, GA
tomfiii
Posted 8 Years Ago
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Yes it does, I was thinking their description of cavitation and what they did was why I placed it.
glrbird
Posted 8 Years Ago
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Here is a couple of choices, maybe you could make work.
http://www.ebay.com/itm/Moroso-Oil-Pan-21960-U-Weld-It-Oil-Pan-Kit-Oval-Track-Steel-/291639690486
http://donrossfab.com/oil-pan.htm


Gary Ryan San Antonio.TX.

charliemccraney
Posted 8 Years Ago
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I'm actually working with Moroso, to have one made.  They'll have all of the engine specific info to build pans for Y-Blocks.  Chassis clearance and such will be the responsibility of the buyer to provide.



Lawrenceville, GA


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