Hi Chris,
As mentioned by Dave, heat management is an issue with an awful lot of kit-cars.
I've squeezed a Rover T16 turbo engine into the back of mine, the turbo is 10mm from the fuel tank, the exhaust runs right next to the gear linkage cables and coolant hoses, the silencer is right under the charge cooler etc... so I've had to get really creative with my heatshielding:
The finished bay has more shielding than in the photo (putting a divide between the silencer and charge cooler) and still after all that the fuel still vapourises on a hot day from heat soak!
Chris