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Topic: High pressure vs. standard oil pump (Read 1115 times) previous topic - next topic

High pressure vs. standard oil pump

I'm just starting to make preparations to change my oil pump and I figure since I'll have the engine out I may as well go ahead and replace the main bearings and main seals while I'm at it.  I was going to get a high pressure oil pump but I've heard some people would have misgivings about that so I'm asking opinions.  What pump should I get?  I have a 22 year old 302 to work with.
1983 Thunderbird-302 HO, Holley 650 CFM 4150 DP, Weiand Stealth Intake, Dual-Snorkel Air Cleaner,  Holley Fuel Pump, Procomp HEI Distributor, B&M Holeshot 2400 Converter, Custom 2 1/4 duals with no cats and BBK shorties, Taurus Fan Conversion, FMS Grill, much more to come....


"In the future, I plan on taking more of an active role in the decisions I make" - Paris Hilton

Re: High pressure vs. standard oil pump

Reply #1
A high volume pump with a stock capacity oil pan will suck all of the oil out of your pan and place it in the top end of your engine before it can come back down. Obviously not a good situation. Not sure about the side effects of a 'high pressure' pump. But standard will do you just fine i'm sure.

:)
2005 Subaru WRX STi|daily driver

 

Re: High pressure vs. standard oil pump

Reply #2
Go with the standard pressure pump....high pressure/high volume pumps sap more horsepower and are not necessary on most street applications unless you are running a turbo/supercharger.  Also, I highly recommend replacing the oil pump drive shaft, I've seen too many of them snap in the standard 5.0 engines...even in low mileage well maintained vehicles.  Good luck with it.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads