tahoelife

Yes I know matt lives in glenshire would be nice to just drop off and pick up when done but not in my budget ...

boxsey911

Like some others have said I would try and find where the problem is. The temp on mine rarely gets above 9 pm on track and only have one cooler. Do you run with the undertray on?

ras62

It sounds like the oil thermostat is not operating correctly. Watch the temp gauge in the car as it warms up, it should rise to around the third line (25% of the range) then drop off as the stat opens. If you dont see this drop and the temp keeps rising it points to stat needed to be replaced.

Crystal Cranks

Could this be as simple as a faulty temp gauge, where does the needle sit when your just driving on the road.

tahoelife

When driving around town the temp sits between 8-9 and will drop with fan on, as far as the thermostat goes my front fender get hot so shouldn't that prove its working? I think the idea of a laser temp reader to test all the locations is a good idea so think I will try that today

tbennett017

+1^ Have you checked to see if your oil cooler is clean and free flowing for air? Not all gunked up with oil residue and dust? I'd look at the obvious stuff before buying mods, as it doesn't sound normal.

ras62

It is possible for the front wing to get warm but the stat may be partially open and not able open fully. Spoiler raising and curtain working ok?

KaiB

I'm 100% with Tom on this, if indeed the thermostat is functioning properly.

If oil is flowing properly throughout (i.e. a line to or from the cooler is not pinched) the entire system, then the answer seems obvious, it's not being cooled enough to cope with track use.

At your ambient temps you should have virtually zero heat issues.

tahoelife

I had reno rennsport install all new lines from motor to tank and from t-stat up to the cooler (yes the $480 per line ones) and had them replace the fan temp switch and "inspect" it all I would hope that since they were doing that they would have checked the cooler for air flow I plan on looking myself tonight after work will report back thank you to all for the input !!

sundog

Sorry to hear that you haven't found the source of the problem. And thanks again for the tow back from Laguna Seca!

After our talk about this, I thought that if it wasn't blockage by the fins on the pistons, then it could be blockage of airflow over/through the oil cooler. The AC and oil coolers are "stacked" in the front right fender. It's pretty easy to remove the front wheel well cover and inspect the two coolers (radiators). When I replaced all of my oil lines the oil cooler was very clogged up. And the same day at Laguna I was running temps about 10 o'clock on the gauge, a full section below red.

tahoelife

Ok so the update is that I am odering a new T-stat just because... and I pulled off the oil cooler fan and fron grill to gain better access to the cooler and did find some grime so soaked it in pb penttrating oil and then took to the local pressure washer and cleaned it hoping this makes it better. I have also discovered i think I am missing part of the "air foil" on the rear c2 wing is it supossed to "close off" or is there supossed to be a 1" gap at the top near the "wing"? Thanks to all for the help so far...

@ Brain your so very welcome and I hope your car is back to the correct amount of fuel !!

crg53

There is a curtain that closes off the gap, # 11 in the picture, is that what you are referring too?

NP993

You say you're on a budget but you keep buying parts, like oil lines and a thermostat, without diagnosing what's actually causing the problem. Not smart.

Regarding the thermostat, you don't need to spend hundreds on an entire unit. You can just buy the internal wear items for $40 and swap them out yourself. Piece of cake. Lots of threads on this in the archives.

tahoelife

Yes the curtain seems to be missing one or two strips along the edge closest to the wing looks like two thirds of it is fine? As far as spending money on parts I did the lines in the fal after saving up for them and replaced them for leaking not for the over heat issue and I am buying just the internal part of the t stat. Mainly I just can't afford to pay someone else to chase the issue. I am hopeful the cleaning of the cooler combined with maybe a partially stuck t stat does it. Along with maybe the rear curtain issue?

911Jetta

I tackled this a couple years back. It's scary seeing high temps with these engines! 11 o' clock?!
More pictures if it helps: https://picasaweb.google.com/udoreisinger2/ThermoSil#