I'm looking at doing some custom gauges for the REPU, but don't have enough space. I can double up by using two senders for one gauge, and selecting between oil temp and coolant temp. Because I've never had an oil temp gauge, I'm not sure what the typical sweep is (I can choose between a few gauges to find the best fit for both coolant and oil). What do you guys see for high oil temps on a normal NA rotary?

 

I'd like to know what "typical" is, too... I have an oil temp guage on mine, on a RB guage block right below my filter.

I usually see in the neighborhood of 150-160f, but have no way to judge if that's "normal." It's normal to my car, but my water temps traditionally have also run low.

 

I see the same. It went to 175 once, but that was last year at Road Atlanta, which a very hot track.

Don't be like me and get a 140-300 Autometer gauge. Get one that starts at 100. when the car is fully warmed up and I drive it normally, it barely moves the needle. Useless gauge unless... well, Road Atlanta

Good luck Crit

 

depends on what you're doing.... if you're just cruising the oil runs really cool, but if you beat on it, or go racing, especially turbo it'll heat up and match the coolant (or beat it slightly)

turbo race car, will see 250F oil temps, this isnt good for long engine life....

i think "ideal" oil temps are in the 180-200 degree range, coming from RB

 

Mine saw around 210 when it was turboed 230 when it had that pos camden on it.

 

Mine usually run in the 160-170 range on "normal" days. On really hots days i've seen it get close to the 200 mark, makes me nervous, but I guess it hasn't done any damage...

 

I've seen anywhere from 140-190 depending on driving conditions. 140 is cruising on the highway on a cold day, 190 is stuck in traffic on a hot one. 160-175 is more typical. I have an electric fan and an FMOC, for reference.

 

The little bypass thermostat in the oil cooler opens @ 185*F. So you won't need a gauge that goes over 240*F. My REPU is usually in the 170-195*F range. After autocrossing it'll go up to 210.

 

Good info. For my turbo swap, I purchased a oil temp guage insead of a water temp gauge as I feel it tells a better story. What I did is I bought the Autometer 100-300 range one. For whatever crazy reason, it was $165 when the 140-300 are $53. However, it is what it is and I want to know when my engine gets warm enough to boost and I felt that the one that started at 140 was a little too high.

 

Glad to see that you guys are also seeing temps that high in traffic, I thought maybe my oil cooler was partially plugged or something, guess I won't worry as much when it gets in the 190 range.
Just for reference, my above post was based off my 12a FB, with a FMOC, black magic M150 fan and stock sized radiator.

 

my FD would run about 180 when the car was over 20mph, under 20mph it would just peg the 230F gauge, so i took it out.

my FC (na/AT) was cold, you could watch the thermostat open and close, unless you were stopped in traffic on a hot day with the AC running, then it would come up and match the coolant temps.