Oil Pressure

[SirRacer]

Hi all,

My engine cracked an oil pump last year on the dyno. We stopped the car before it caused any damage and i had the block rebuilt with new bearings and a brand new 33gtr oil pump.

Ive now repainted the car and am driving it really for the first time since (have started and driven it before but not a great deal).

Ive had a oil press gauge installed. This is T'd into the standard oil press fitting. On idle the gauge sometimes reads nothing, then can shoot up as high as 70psi once the car gets warmer.

When im driving it the oil pressure is off the gauge (80psi), and then once the car is warm the oil pressure will sit at about 30psi at idle.

Is this normal and what should i be looking for?

Cheers

Edited January 22, 2011 by SirRacer

[r33_racer]

30 psi is about normal for warm idle. Oil pressure is always high when cold. The gauge shouldn't ever read nothing when tge car is running.

Is the gauge electric or mechanical?

[SirRacer]

Its a mechanical gauge. Just a cheapy but the tuner said it works as well as the more expensive ones.

It seems to read right off the gauge, ie it is between 80psi (i think thats the highest it reads) and 0

[SirRacer]

r33 racer was bang on. i just heard back from the guy who built the engine who basically said that at high rpms they can get up to around 90 psi (my gauge only goes to 80), when cold it can go over 120psi and when the oil is warm it can be as low as 15psi.

Just for anyone who does a search.

Cheers