Oil pump

Don W.

Stab it and steer it
Done the searching, read the posts, just checking if there is anything new in the oil pump department that I need to know before I decide?

TIA
 

epix

Typhoon
Re: Oil pump

Go with an Melling M-Select (as much as I hate Melling...) and be done with it. speaking from experience.
 

JSM

Active member
Re: Oil pump

Be careful also, I am 99% sure I blew up my motor due to moving around too much oil. Oil in the heads won't get picked up by the oil pump and can cause bearing damage in a hurry.

I had a milidon HV/HP pump. Probably going to do more on the stock volume/pressure next time.
 

Quickstop [UK]

Combating adversyty.
Re: Oil pump

According to Mike at RPM, hi vol would shift too much oil but the hi pressure doesn't have the same issue apparently.
 

Don W.

Stab it and steer it
Re: Oil pump

According to Mike at RPM, hi vol would shift too much oil but the hi pressure doesn't have the same issue apparently.

Yes, the motor can only "accept" so much oil. Say, for the sake of argument, 5 GPM @ 65 psi. Anything over that is bypassed through the relief valve in the pump back to the pan. As the motor is revved the pump turns faster as well, pumping more oil. Once 65 psi & 5 GPM is reached the remainder is returned to the pan. Watch your oil pressure ga. As you rev the motor the oil pressure rises to the set point and not buyond regardless of how much you rev the motor.
 
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