Originally Posted by
dfe1
If you have a C5 and are experiencing IAT heat soak problems, consider a ram air system. I installed a VaraRam and IAT readings are now within 1 or 2 degrees of ambient. There is still a bit of heat soak after the engine is turned off, so IATs after a restart are somewhat higher, but they quickly drop once air starts flowing again. This is with the temp sensor located in the mass air sensor. When I eliminate the MAF and get the temp sensor out of a metal enclosure, I'd expect a noticeable reduction in the effect of heat soak. I don't know if there are any viable ram air options for F-bodies, so relocation of the IAT sensor may be the best approach.