ACSGP

So I've now done the 964 Turbo brake upgrade (and yes, will post pics once I get round to it), looking to reduce the heat coming into the cabin from the engine.

Any ideas? How does the stock car insulate heat, and can I simply upgrade the material to a more effective modern version? It was also really strange to put on a hot seatbelt the first time.

jimq

sounds like you could have a leak in the heater tubes if your front seat belts are getting hot.

ACSGP

Is a hot seat belt so uncommon? My impression was that the oil tank was situated there, and after use, it retains the hot engine oil, transferring heat into the cabin and specifically to the seat belt close to it.

papitouris

Not uncommon to me. Have experienced it numerous times.

jimq

maybe mine dont get hot because I have a cab and the top only is up a few days a year letting the hot air out.

JasonAndreas

Take a look at THIS thread for a possible explanation.

ian89C4

I have an American car but my wife always likes the warm seatbelt on the passenger side. I do think that it is because of the oil resevoir on that side. My side is never warm.

jimq

you have never felt "warm" until you get in my TT after it sits in the Florida sun and without thinking go to shift the aluminum/CF shift ****! Now that is HOT !

ACSGP

Thanks Jason. This raises a couple of questions. So there's a vent that could potentially allow hot air in. I guess this is relevant for temperate countries. So in Singapore which is on the equator, can I simply disable this hot air capability?

Also, all the rear seats are warm after a run in a car and leaving it for awhile with the engine off. Seems unlikely that a small vent at the base of the seat belt can generate so much heat. More likely the firewall is allowing heat through via conduction?

ACSGP

Thx. Singapore is RHD, like the UK, so I get the benefit of the hot seat belt

ACSGP

Spoke to my mechanic, and he said that you can remove the heat exchanger in the engine compartment as the RS models don't have them. Anyone done that yet?

jimq

then you wont have heat.

hawk911

Jim, just cover the shifter **** with a towel

ACSGP

Not a problem when you live almost on the equator

jimq

Actually now I put a old sock on it