Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: dOrk !]
#1394136
02/27/13 08:08 AM
02/27/13 08:08 AM
|
Joined: Aug 2003
Posts: 12,291 Kent, Wa
340SHORTY
Truck Nut
|
Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
|
standard only pumps for me. Iv learned my lesson with hi volume/hi pressure pumps.. They are not needed....
I am truckless..
|
|
|
Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: rnch]
#1394137
02/27/13 08:47 AM
02/27/13 08:47 AM
|
Joined: May 2003
Posts: 3,265 Pyeongtaek, South Korea
69HemiGTX
master
|
master
Joined: May 2003
Posts: 3,265
Pyeongtaek, South Korea
|
High pressure and/or volume aren't really necessary for 2500 RPM. The factory pump is more than adequate.
OIF V and OEF X veteran and proud of it!
|
|
|
Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: 69HemiGTX]
#1394138
02/27/13 10:35 AM
02/27/13 10:35 AM
|
Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
|
I Live Here
Joined: May 2003
Posts: 15,487
Florida
|
just replace it with a stock over the counter oil pump from napa. I have used a lot of the melling M72 pumps on new engine builds as well as high milage engines. if I use a HV/HP pump on a new build I drill the oil pump/main cap/block to 1/2" add 4 more holes in the oil filter adaptor, drill the feeds to lifter galleys to 9/32,matching/blending all mating surfaces and rounding any turns i can reach. other wize it uses a stock pump with stock engine specs.
|
|
|
Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: dOrk !]
#1394139
02/27/13 12:49 PM
02/27/13 12:49 PM
|
Joined: Jan 2013
Posts: 77 Louisiana
rnch
OP
member
|
OP
member
Joined: Jan 2013
Posts: 77
Louisiana
|
Quote:
What kind of pressure #'s are you looking for ?...and WHY high pressure at lower rpms ?
I recently bought a higher mileage 318 powered ram, looks like oil hasn't been changed in a L O N G time due to a rounded off, stuck oil pan drain filler plug.
The oil pressure gauge still reads slightly below half scale all the time, no engine noise that I would associate with low oil pressure.
I'm going to be swapping oil pans soon, thought it might be a good prevenative measure to change the pump out with the pan off?
Perhaps I will just clean the pick up screen and let it go.
|
|
|
Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: 69HemiGTX]
#1394141
02/27/13 02:12 PM
02/27/13 02:12 PM
|
Joined: Jan 2013
Posts: 77 Louisiana
rnch
OP
member
|
OP
member
Joined: Jan 2013
Posts: 77
Louisiana
|
Quote:
High pressure and/or volume aren't really necessary for 2500 RPM. The factory pump is more than adequate.
Good to know! This truck ('85 ram 150, 318 & torqueflite) will be my back up vehicle; used mainly for trips to home depot or lowes to get stuff that I feel guilty about putting in the carpeted trunk of my new car; will seldom experience more than 65 mph on the occassional interstate run to work....slowly trying to fix what the previous owner deferred doing.
|
|
|
Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: rnch]
#1394142
02/27/13 02:17 PM
02/27/13 02:17 PM
|
Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,376
|
A stock pump is the best for your application. Yes, this advice has changed from years ago. The horsepower that it takes to drive the pump varies DIRECTLY with either flow or pressure. Increase both and it varies by the product of the two. Having 50psi at idle for example, just twists your camshaft and puts more load on the oil pump drive. R.
|
|
|
Re: Heavy Duty or High Volume oil pump: which is "better"?
[Re: rnch]
#1394147
03/19/13 09:40 PM
03/19/13 09:40 PM
|
Joined: Jan 2013
Posts: 77 Louisiana
rnch
OP
member
|
OP
member
Joined: Jan 2013
Posts: 77
Louisiana
|
Quote:
Quote:
High pressure and/or volume aren't really necessary for 2500 RPM. The factory pump is more than adequate.
Good to know! This truck ('85 ram 150, 318 & torqueflite) will be my back up vehicle; used mainly for trips to home depot or lowes to get stuff that I feel guilty about putting in the carpeted trunk of my new car; will seldom experience more than 65 mph on the occassional interstate run to work....slowly trying to fix what the previous owner deferred doing.
I replaced the oil pump (and oil pan and gasket) this weekend with a standard pressure Melling oil pump. The oil pressure gauge reads somewhat higher, a bit more than half scale, but does build up pressure quicker than before.
|
|
|
|
|