|
06-08-2004, 12:13 PM
|
#1 |
|
Registered User
Join Date: Jan 2004
Location: Camarillo, Ca
Posts: 79
|
Oil pump pressure
Could someone please tell me what psi a normal oil pump for a 350 smallblock should be pushing versus a high volume one?
__________________
1972 1/2 ton Chevy C10 V-8 350, crate engine, with Flomaster dual exhaust. She's Old Blue the Truckinator (no relation to Arnold  )
|
|
|
|
06-08-2004, 01:25 PM
|
#2 |
|
Registered User
Join Date: Feb 2004
Location: Massachusetts
Posts: 269
|
Depending on the rpms, stock oil pressure should run between 20-60 PSI. High volume pumps may run up around 80 psi.
__________________
72 Cheyenne Super 4x4 SWB |
|
|
|
|
06-08-2004, 01:31 PM
|
#3 |
|
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
|
That's a really hard question to answer, too many variables. The high volume pump has longer rotors and pushes more oil per revolution. The pressure from the pump is internally regulated by a valve/spring. At idle, the high volume pump may have more pressure than the stocker but once you get high enough for the regulator to start cutting it down, it won't matter at all. A high volume pump may be able to keep the pressure up in an older motor with looser bearings but it would be better to fix that first.
|
|
|
|
|
06-08-2004, 08:03 PM
|
#4 |
|
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
|
I have a 10555 Melling on my 383(hy vol/hy pressure) It runs 80 psi @ idle cold, & settles to 40 psi @ idle hot, runs tween 65-70 psi hot @ 3000 rpms. A stock pump will generally run around 20 psi @ idle (hot), & 50 -55 @ 3000 revs (that is assuming fresh bearings). crazyL
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
