Jump to content
SAU Community

What Are Typical Numbers For Oil Temp, Water Temp Etc?

sl33py

By sl33py,
in Engines & Forced Induction

 Share

Recommended Posts

sl33py Mentor

sl33py

Posted
Posted

What are typical/expected readings or ranges for water temp, oil temp and oil pressure under 'race' conditions for an RB motor? (plus any other measurement I haven't thought of).

And what are abnormal/dangerous numbers?

I know there aren't any hard and fast rules, and some purpose built race engines will be very different, but let's say for the average road going skyline modded up to maybe an after market turbo, ECU and supporting mods.

And if you could only have 1 or 2 extra gauges on a GTST, what would they be? Obviously you need after market boost cos the stock one is inaccurate and has stufall range. I know I'd like a water/coolant temp at the very least. What else is good to have?

Devils_Advocate21 Mentor

Devils_Advocate21

Posted
Posted

Im guessing standard radiator? and determine what race? Drag strip, or track? i can give water temp at 82-85 deg at the strip acording to the pfc reading. unsure on oil temp track guys may help ya there, ive heard upwards of 110, also dependant on if you have an aftermarket oil cooler. Guages that come in handy, would have to aggree on Water temp, and oil pressure maybe oil temp, boost itself is a maybe only as alot of ebc's come with there digital readout of boost pressure anyway.

hope that helps

sl33py Mentor

sl33py

Posted
  • Author
Posted

Oh - circuit use. And with a 40mm radiator/PFC/FMIC. Not much else. I don't know about oil cooler yet, was going to go back to the track with the radiator and see how it goes with info from this thread in mind :D

ferni Grand Master

ferni

Posted
Posted

Well it depends a lot, not sure about gtst, i think they run a bit cooler than GTRs.

But to give you some idea at the track I hit around 120 oil temp, if i get to about 125 i usually back off a bit to let it cool, doesn't take long to drop back to <120. As for water temps You want to keep it under 100deg. I usually sit at low 90s on the track.

When i say track, i mean the real track - not the drag strip :D

I have an oil cooler with ducting and a bigger alloy radiator and around 300kw@wheels.

sl33py Mentor

sl33py

Posted
  • Author
Posted
More on the electric water pump please

x2! Electric... as opposed to mechanical right? Like the electric thermo fans which run directly off the battery instead of running off the engine (I think)?

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      S1 rb25/s14 starting problem

      By Duncan · Posted

      Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Sorry. Front brake calipers
    • MBS206
      S1 rb25/s14 starting problem

      By MBS206 · Posted

      Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
×
×
  • Create New...