Oil Temp Issue

[Josh222]

I picked up my new to me r33 gtr the other day and have put about 200km on it so far. It has a remote oil filter setup with a fairly larger oil cooler hooked in with it. I dont see any sort of oil thermostat valve and its takes a good 25 minutes before the oil temp gauge even shows the needle at the lowest 70*C mark and never goes over about 75*C while driving, cruising at 100km/h it drops below the 70 mark. What would be the recommended thermostat temperate to get. I found one that will fit with my setup that came in 86*C or 102*C options, was thinking the 86*C would be the safe bet?

Edited July 26, 2016 by Josh222

[Aussie_Delivered_R32_GTR]

Just make sure the sensor unit isn't faulty.

Water temp sensors, Oil Temp sensors and Oil Pressure sensors ALL PLAY UP!

I had EXACTLY the same thing happen with one of my R32's.

Swapped out the sensor and it worked perfectly!

Cheers,

Bob.

[KiwiRS4T]

86deg would be the one. Short term measure you can put a cover on the oil cooler radiator.

[niZmO_Man]

He's in Canada, do you even need a cooler up there?

[Josh222]

It was about 33*C today and felt a bit over 40 with the humidity so I know I need a cooler atleast. Car might be okay though.

Edited July 27, 2016 by Josh222

[V28VX37]

You will definitely need a thermostat in a cooler climate unless it's track only car. Out of the two options the 86C sounds like the pick.

Something to keep in mind is that if you go with a thermostatic sandwich plate there is always some flow through the cooler, irrespective of thermostat rating. I spent a long time battling my Mocal one, even swapping the wax pellet, and it's still slow to warm up on cold days -> too much flow through the cooler. From what I understand the Greddy sandwich plate is a better design in this regard.

As a last resort, if your cooler is too eager even with a thermostat, what you can do is fab up a small plate to block the oil cooler during the colder seasons. That's what I've done.

Also others have said make sure you have a properly positioned, working temp gauge as the first step!

Some related reading:

• http://www.sau.com.au/forums/topic/462362-oil-cooler-too-eager-faulty-thermostat-or-incorrect-temp-sensor-location/
• http://www.sau.com.au/forums/topic/461812-oil-cooler-recommendations-for-r34-gtt/