Jump to content
SAU Community

Recommended Posts

Hi just wondering what oil prssure you have.

New motor RB30/25, RB25 oil pump, RB25 oil feed restrictors in the block. 110psi cold with 20W-50 garbage oil for run-in. Haven't got much oil temp in it yet to see if it goes down. Does anyone else get high pressure cold? Has anyone experienced by-pass valves sticking in the pump? The pump was pulled apart and looks to be in VGC before install.

Please help. Thanks.

Link to comment
https://www.sau.com.au/forums/topic/95526-what-oil-pressure-do-you-have/
Share on other sites

On my RB25DET I get between 7.5 Bar (108 Psi) to 8.0 Bar (116 Psi) on a cold start, drops to 2 bar at idle when it's up to working temperature. So 110 Psi (7.6 Bar) is good oil pressure for a cold start :) I'm using 10W40 Motul 300V Synthetic oil.

Edited by PlasticStan

You guys made my day!!! I was just about to pull the sump off and I really wasn't looking forward to it!

The gauge is TEMPORARY for tuning- autometer pro comp liquid filled mechanical gauge (not that it makes much difference) and i bled it properly.

I might try and get some thinner oil to start with now to drop it a bit. Thanks.

2 thou bearing clearances and a 10w30 oil

If you have more oil pressure than above then there is something wrong....unless you have set it up for those pressures.

Plus if you read the manual it will tell you similar figures.

BTW...nice attempt at sarcasm but those figures are accurate. Even with an N1 oil pump you shouldn't expect any more than 80-90psi cold start.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Yeah good luck out there! Will be good to see a mighty GTST going harder than the GTRs
    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
×
×
  • Create New...