oil pressure

[Jono]

Can someone set me straight on oil pressure. Am i worrying over nothing or do i have a problem. I have just rebuild the engine with a reground crank and shells. As well as a oil pump refurb kit.

Im seeing around 20-25 psi on hot idle oil temp 80degrees (800ish rpm)

but at 3000rpm im seeing around 40psi. Is this enough I was expecting more. I have a mechanical gauge plumbed into the turbo feed line.

cheers

[Brigsy]

That will be fine. The coupe manual states 45psi at 3k rpm. To be fair every c1j ive owned has just over 40 at 3k, never had any problems.

[Alastair]

Sounds spot on for C1J mate.

[Jono]

Cheers ! Puts my mind at rest!

[Scoff]

That sounds about normal for thinner oil, 10w40 and the like. If your measuring from after the 1 way valve in the feed line then that'll drop a few psi too. I once tried measuring before and after that valve, it made a difference, to the point where I ran without the 1 way valve in the end.

[Scoff]

oops, getting slow in my old age

[Jono]

I cant remember which way round I plumbed the guage in now, before or after the one way valve. I suspect it was after.

Is that a recommendation do do away with the one way valve!!??