How can I stop the area around the tunnel getting so hot!

[STypeR]

I suspect most of the heat in this area comes from the radiant heat emitted from the transmission and mufflers. Once the metal in the tunnel absorbs this heat then it is not that easy to stop it entering the cabin, even with a pad/sheild on the inside. Modern cars have underbody sheilds above the transmission and all mufflers, which looks like it is mainly for sheilding this radiant heat directly. In the cabin is where most of the sound deadening occurs (and in modern cars most of the sanitising of the best noises as well!).
I have seen Stags with an without the factory pads. My Stag did not have one but my 2500S did.
Heat is a big problem here and we see days over 40 C in the summer. I ditched the rubber backed foam firewall (it was way past its use by anyway) and found a modern lightweight firewall material that I can lift with my little finger. Definitely not original but I expect it to perform better than rubber and old fashioned foam. Replaced the LH internal firewall rubber/foam pad as well. I found two sizes and the thicker one I used in the engine bay would not form very well under the tunnel so I used the smaller thickness size. This product has no 'tar/bitumen' base so is incredibly lightweight and easy to form and stick to the tunnel.

[alan_thomas]

Thanks Guys lots of ideas, am going to order some foil covered, fibreglass backed ,self adhesive material to line the inside of the tunnel and lower part of the firewall. Of course by the time it is delivered and the garage is cool enough to work in the hot weather will be gone and it will sit on the shelf until the next hot period when of course it will again be too hot to get under the car and fit.

Perhaps I should just soak the carpets in cold water before a trip - Alan

PS will the weather hold for National Day?

[mole42]

PS will the weather hold for National Day?

I certainly hope so!!