There's a thread on this site that I followed what was said and I have found that I haven't had any problems to speak of since. Oh
and having a webasto sunroof fitted helps too!! Went to Classic Le Mans last year and was cool as a cucumber.
It was posted By : James Carruthers , 24-Jun-2004, 3:33pm. He used Thermo Guard from www.agriemach.co.uk along with
their heavy duty adhesive spray to attach it. He used this in conjunction with rubber sound deadening pads from Frost and the
"Thermo-Guard" on top and said it worked great, such that the gearbox tunnel became only mildly warm as opposed to hot... and
didn't seem to be giving off heat...
He also said, "top tip is to roll it on to the inside of the tunnel with the short edge of the insulation along the bottom edge of
the tunnel... if that makes sense...
Check out their catalogue - they have some great products...
http://www.agriemach.com/product_info.php?products...
http://www.frost.co.uk/item_Detail.asp?productID=8...
(you need 3 deadening pads - and one 24" x 48" of the Thermo-Guard to cover the tunnel)
It is totally quiet now... all I get is a load of wind noise and the exhaust burbling out the back.
Another thing I'd suggest - that I didnt do, but realised afterwards... is to put some tape on the matting side of the thermo-guard
- the sticky side facing the same way as the alu - then stick the matting side down to the inside of the tunnel - and put the tape
around the edge of the matting and stick it on to the alu side... (alu tape would be great for this) the felty matting stuff is
exposed at the moment on mine (see pic) and it might start absorbing water... and go a bit yuck..."
There was a lot of debate on the subject so you may want to trawl around this and earlier threads?
Tim (Oxford Dreamers).