High Volume Oil Pump Comparisons?
Thread Starter
Team Owner
Joined: Jun 2001
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High Volume Oil Pump Comparisons?
I need high volume oil pump (Too long to go into) that will keep pressure in High heat Track conditions. Right now my shimmed pump isn’t doing it. I dont have an oil pressure problem per say, its fine in normal drying. The problem is 2 fold. The stock shimmed pump doesn’t keep the pressure up in the high heat ROADCOURSING conditions (during long sessions) combined with the bearing clearances of the LPE Forged engine. Its been like this since the FORGED engine – 2 years now, and I no longer feel comfortable with it.
I have 2 high volume oil pumps in mind. But I don’t know how to compare.
The Lingenfelter High Volume Pump, which is suppose to be a modified
GM pump:
http://www.lingenfelter.com/Merchant...Category_Code=
Or the QTP High Volume OIL Pump, a large pump with different spring rates that requires their $495 cover to fit
http://www.quicktimeperformance.com/Cover/
Any suggestions on how to compare?
I have 2 high volume oil pumps in mind. But I don’t know how to compare.
The Lingenfelter High Volume Pump, which is suppose to be a modified
GM pump:
http://www.lingenfelter.com/Merchant...Category_Code=
Or the QTP High Volume OIL Pump, a large pump with different spring rates that requires their $495 cover to fit
http://www.quicktimeperformance.com/Cover/
Any suggestions on how to compare?
Racer
Joined: Apr 2006
Posts: 435
Likes: 0
Oil pump...
I know you said oil pump, but have you tried heavier weight oil? Some of the heavy rated synthetics may do what you want without all the problems that can go with a hi volume-high pressure pump. 15W50 Mobil 1 might be a good choice. Just thinking out loud-chuck.
Thread Starter
Team Owner
Joined: Jun 2001
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Originally Posted by c5chines
I know you said oil pump, but have you tried heavier weight oil? Some of the heavy rated synthetics may do what you want without all the problems that can go with a hi volume-high pressure pump. 15W50 Mobil 1 might be a good choice. Just thinking out loud-chuck.
Thanks. Have used 15/50 since day one. Trust me on this, I need a higher volume pump.
Racer
Joined: Aug 2005
Posts: 361
Likes: 1
From: Montara Ca
Read a post from Jean at Fred Beans the other day that the LS4 oil pump supposedly pumps 30% more volume then the LS1/6???
http://forums.corvetteforum.com/show....php?t=1370713
http://forums.corvetteforum.com/show....php?t=1370713
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Thread Starter
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Originally Posted by vettenuts
Not sure on the Melling, but the QTP uses a thicker gearotor, which generates the additional volume.
I think a QTP pump would work and I would pay the $175 but then I have to fork up $500 for a special cover.
Plus, there are leak rumors of a 2 piece cover. I'm sure they will warranty it but then you will be out all that labor if there are issues. Its amazing how one will warranty a part but if it fails, they wont warranty the lost $$$ from labor when you decided to take a chance on buying their product
Last edited by GR8-LIFE; May 9, 2006 at 04:53 PM.
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Take a look at this link
http://www.melling.com/select/oil_pu...mall_block.asp
And give them a call. You're dead on the money about higher volume rather than just higher pressure. Shimming the small block pump works to a point but what you need is not only higher pressure to increase the force required to squeeze the journal against the bearing, but the higher volume to get increased flow with attendant temperature reduction because you are pulling a LOT more heat out of the bearings with the higher flow. I don't think Melling has after market oil coolers but they know who to call if you don't already have one. I'm guessing you already have a higher capacity oil cooler.
Charlie
And give them a call. You're dead on the money about higher volume rather than just higher pressure. Shimming the small block pump works to a point but what you need is not only higher pressure to increase the force required to squeeze the journal against the bearing, but the higher volume to get increased flow with attendant temperature reduction because you are pulling a LOT more heat out of the bearings with the higher flow. I don't think Melling has after market oil coolers but they know who to call if you don't already have one. I'm guessing you already have a higher capacity oil cooler.
Charlie
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Originally Posted by cruisemon
http://www.melling.com/select/oil_pu...mall_block.asp
And give them a call. You're dead on the money about higher volume rather than just higher pressure. Shimming the small block pump works to a point but what you need is not only higher pressure to increase the force required to squeeze the journal against the bearing, but the higher volume to get increased flow with attendant temperature reduction because you are pulling a LOT more heat out of the bearings with the higher flow. I don't think Melling has after market oil coolers but they know who to call if you don't already have one. I'm guessing you already have a higher capacity oil cooler.
Charlie
And give them a call. You're dead on the money about higher volume rather than just higher pressure. Shimming the small block pump works to a point but what you need is not only higher pressure to increase the force required to squeeze the journal against the bearing, but the higher volume to get increased flow with attendant temperature reduction because you are pulling a LOT more heat out of the bearings with the higher flow. I don't think Melling has after market oil coolers but they know who to call if you don't already have one. I'm guessing you already have a higher capacity oil cooler.
Charlie
I'm getting an oil cooler (probabaly not a radiator combo) in June when I get my higher volume oil pump. Both of them seem to be an absolute necessity for track with my particular application. I've hit the 280's in the oil temp dept before. I know others who have stayed out to 300 but I wont risk that. I'm also ditching the crappy LS1 oil pan for an LS2 Oil pan in hopes to help prevent oil starvation coming out of the turns. Will be consistenly staying a quart above too!!
BTW, I emailed their tech support with my issue. I will call them if I have to. But no more track sessions without these 3 mods
Last edited by GR8-LIFE; May 9, 2006 at 08:00 PM.
Thread Starter
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Just found this great thread on Oil lubrication systems. Very good info becasue further down the article it discusses diffrerences between Higher pressure Pumps and higher volume pumps. It even addresses bearing clearance issues in certain applications. Good stuff!!!
http://www.aa1car.com/library/2005/us020516.htm
http://www.aa1car.com/library/2005/us020516.htm