If it helps you, I’ve had every arb compressor I’ve owned (2 duals, 3 singles) mounted under the hood and have not had one die. One of those 80’s is aired down and aired up on average 4 times per month for the last 2 years. And driven through all the conditions.I've already bought a Slee's bracket (for a single compressor) to mount it in the engine bay but still undecided after reading that it is better to stay away from heat.