Ceramic coating, intake manifolds

[Phil Payne]

> Well, I guess the goal is to lower intake charge temperature/prevent it from
> picking heat up.

It doesn't pick much up when the car's moving - there is significant airflow between the
manifolds.

The worst possible thing to do is place insulating foil between them.  The worst case of
exhaust mainfold cracking I have ever seen was on a car where the owner was very proud of
having got some jet tailpipe insulation and wedged it between the manifolds.

Badly installed dump valves also block this airflow.

--
  Phil Payne
  http://www.isham-research.com
  +44 7785 302 803