S50 oil pressure

[e30s50dan]

JUST got done with my S50 swap,and the damn thing cranked right up,runs great...chaseing an oil leak,and have to order software,as I have 21.5 injectors and this red label is from a M50

I have an mechanical oil pressure gauge strapped to the manifold,so I can see it from inside (hood off)....Ive noticed the oil pressure is around 20-25psi at idle,but 70+psi at higher rpm's..IS this normal??? I cant remember what the M50 was!

I am running 10-30w right now as break-in(head rebuilt)bottom end wasnt touched...plan on going with heavier weight oil this week

so, is 70-72 psi normal on an S50??

tia

Dan

[gobuffs]

general rule of thumb is 10psi/1000 rpms. Idle of 20-25 psi is normal.

[e30s50dan]

Yea but at 5k rpms I'm seeing 70psi. Seems high

[matt]

I wouldn't worry too much about it. I see 60 pretty regularly, a little more is no big deal.

It can also depend on the gauge and where you have it tapped.

[e30s50dan]

Thx Matt. Going to order your chip this week

[BMW_TUNER]

Yup the S50 with thin oil will make the factory light flicker at idle sometimes I checked mine and it was 22 at idle. The light comes onat anything uner about 22.

[StereoInstaller1]

What oil you rockin?

[e30s50dan]

right now,just 10-30 Mobil one dino,but changeing to heavier weight....any suggestions!!

run 15-50 Mobil 1 synth in race car,been for years,but its not what it use to be.I have some of the last red top bottles,and not sure what to use

[Fusion]

I think it's the oil. Either the weight or the fact that it's new, that's raising the pressure.
Click http://www.r3vlimited.com/board/show...14#post2092414

[e30s50dan]

Thx for that thread. Good info