So recentely I discovered a potential overheating issue in my 930. When idling for periods of time or stuck in traffic in the city, the oil temp gauge would creep on me up to the second hash mark.

Bring the car in to my mechanic, they identify a faulty cooler/fan switch and replace it. Once the fan is starts working again, they discover that the thing is clearly on its last legs and runs out of steam after a very brief run. Now they are replacing the fan ($489 part).

My question(s) is this. I was at Putnam Park last weekend for a driving event when I noticed that towards the end of the second day the oil gauge was creeping beyond the second hash mark and making its way to red. Obviously I decided to run a few cool down laps and call it a day:

1. Am I wrong to think that the oil cooler fan (which wasn't working at the time) would only help me when the car is idling or in traffic (e.g. no airflow from the car being in motion)?

2. Shouldn't racing around a track provide enough air to the cooler to keep her cool?

3. Is it normal for the car to run a little warmer than normal in track situations (I would think so)?

4. Are stock 930 oil cooler setups sufficient for track events?

Thanks guys!!

 

NO, stock 930 oil cooler setups are not sufficient for the track in my opinion. When I drove my car on the track with the stock oil cooler, it simply couldn't keep up. I added a 2nd oil cooler up front with a new valence, and the temp dropped tremendously!

Brian

 

Brain -

Thanks... I was afraid that I would hear that. What kind of valence and cooler did you go with? Any insight on installation difficulty?

 

I bought a 934 style front end from TRE Motorsports, and I used a Setrab 172 for the cooler.

http://www.competitioncustompaint.com/934/934.html
and finished pic at
http://www.competitioncustompaint.com/misc.html

 

Brian,
Nice 934 style front, very aggresive.

Rob,
You would need an additional oil cooler, even if you dont track the car, it's a good investment. Surely the temps will rise significantly when your tracking it and it's advisable to go for a few slow laps to help cool it down. The fan will also surely help especially in traffic.

 

Brain... That looks great. I'll have to get me one.

 

If you had to buy a new fan unit, which would you buy? What after market is most noteable and reliable for tracking and street use?

 

I'm pretty sure B&B or even Mocal oil coolers would sell just the fan.

 

Factory part is BIG $$ definitely look for aftermarket. Fortunately I just found out that my mechanic traced the problem to a bad relay so I am a happy camper(for now).

 

There are a battery of places you can get a new cooler. Something like what Brian has works well, but does require a change in the nose.

 

I was at VIR last November and had a piece of carbon fiber go into my right turn signal at about 100 mph( which is out for more cooling) and lodge into my factory oil cooler fan. It was on and now it doesn't work. As everyone says, it's very expensive so, I'm going with a cheaper fan from Summit, Jegs, or....