Oil pressure
Author
Discussion

ARAF

Original Poster:

20,759 posts

254 months

Sunday 17th January 2010
quotequote all
Here's a first for me - serious question! redface

Out yesterday, the VXR8 was running at 3-4 on the oil pressure gauge at about 2500-3000 revs (about 100 deg on oil temp). Is that right, or is it as I suspect, a little high?

I really think that this is just one of those situations where too much information is dangerous. If the gauge wasn't there, I wouldn't have anything to worry about. laugh

neiljohnson

11,298 posts

238 months

Sunday 17th January 2010
quotequote all
Is that measured in bar?

jagracer

8,248 posts

267 months

Sunday 17th January 2010
quotequote all
neiljohnson said:
Is that measured in bar?
I certainly hope it isn't PSI

neiljohnson

11,298 posts

238 months

Sunday 17th January 2010
quotequote all
jagracer said:
neiljohnson said:
Is that measured in bar?
I certainly hope it isn't PSI
biglaugh be expensive for him if it is

essexhsv

792 posts

229 months

Sunday 17th January 2010
quotequote all
The gauged on the Ro are in bar and mines runs at about 3.2 to 3.3 bar at anything over 1500rpm which is normal.
But i wouldnt want mine to over 4 bar.

neiljohnson

11,298 posts

238 months

Sunday 17th January 2010
quotequote all
wouldnt bother me much better high than low many cars ive messed around with run much higher than that but with the old tech in your engine i would expect it to be fine at that pressure smile

ARAF

Original Poster:

20,759 posts

254 months

Sunday 17th January 2010
quotequote all

The scale, and kPa is hundreths of a bar. The car is therefore running between 3 and 4 bar - roughly 40-60 psi oil pressure. It still seems a bit high to me - I would have thought that 2 bar would have been closer to where it should be.

As to it better being high than low, fine - except for the added pressure it's putting on oil seals.

neiljohnson

11,298 posts

238 months

Sunday 17th January 2010
quotequote all
ARAF said:
The scale, and kPa is hundreths of a bar. The car is therefore running between 3 and 4 bar - roughly 40-60 psi oil pressure. It still seems a bit high to me - I would have thought that 2 bar would have been closer to where it should be.

As to it better being high than low, fine - except for the added pressure it's putting on oil seals.
Have had engines that run up to 6bar without oil seal problems, i would expect that as said above anything up to 4 bar is fine. How many miles has your car done? if its low it will be a little higher than normal as the engine will still be tight.

ARAF

Original Poster:

20,759 posts

254 months

Sunday 17th January 2010
quotequote all
Yes, it's tight. It's only done just over 2000 miles.

As I said, it's probably more a case of having information that I'm not used to. redface

Thanks all. cool

donk r8

2,755 posts

227 months

Sunday 17th January 2010
quotequote all
ARAF said:
Yes, it's tight. It's only done just over 2000 miles.

As I said, it's probably more a case of having information that I'm not used to.

Thanks all. cool


Dont worry, mine runs at that with 27000 on the clock, drops a little when very hot!!ie: track day!!!

snowwolf

11,503 posts

206 months

Sunday 17th January 2010
quotequote all
Is the pressure gauge pipe fed or do they run on transducers? bad electrical connections can give false readings if not pipe fed.