JowettTalk

Just received this. I do not normally pass on advertising but this may help those with underbonnet heating issues.

These products have been used in Hot Rodding for heat, engine/body vibration and sound deading for several decades.
Be very careful when choosing the product and brand for your particular use...they are not cheap.

Dynamat has proved over the yrs to be the most popular and my 1st choice for the next rebuild of the Camaro in a few yrs time.....
http://dynamat.com/

A link to other similar products
http://www.hotrodders.com/kb/insulation-sound-deadening

When the correct grade is used in the correct places and installed correctly, the amount of cabin vibration , heat and noise is very dramatic.

Zicrotec - treated the manifolds of my V8 Rover earlier this year - proir to this the car suffered extensive fuel vapour problems with the twin SU carbs in the centre uppermost position of the engine bay - like Keith states it is not cheap (close to £400 for the 2 manifolds to be treated) - but is has transformed the car by reducing the under bonnet temp in excess of 30%. Zicrotec is the choice of the majority of the worlds F1 & rally teams / top vehicle restoration specialists.