427 oil pressure

[55312]

Keith

I have a thread on 427 oil pressure. Being one of the gurus here, can you check it out and comment?

Thanks

Tim

[Thorin]

Give him the link to the thread you are talking about - make life easy for him.

[SCOBRAC]

The answer is you need 5-8 psi at idle and maybe 35-40 at speed. More than that and you begin to rob the engine of horsepower and will wear parts faster. That said there was a reason S/C cars came with 160 psi oil pressure gauges. Send me $20 and I'll run mine up to 160 and send you a photo. Melling swears the HP pumps actually induce less wear than the HV units.


http://www.clubcobra.com/forums/show...969#post649969

[55312]

Keith

If you get a chance to read this here's the link to the original question.

Thanks

Tim

427 Oil Pressure

[Ant]

I also would be interested in knowing, and from what I can gather on most high performance road and race engines, 50-60Ibs Hot at max rpms seems to be normal.

We have a guy here in NZ who races a 62 Galaxie with 427 engine, he blew a few engines years ago but now has it reliable with a modified oil system and 100psi oil pressure, but to my mind why would you need so much to keep metal surfaces apart unless the engines arent built correctly.