if you're worried about it they're cheap piece of mind. otherwise like it's been said, just don't beat on your car then park it immediately.

 

With my eclipse, cruising on the freeway at 70mph would heat up the exhaust manifold enough for it to glow. It took a whole lot more than a minute idling to cool it off enough to shut it down, and this was just after cruising on the freeway on a cold night.

 

That's not normal. Maybe your timing was very retarded or your manifold wasn't well flowing.

And either way, idling under the hood whilst stationary is not the most efficient method of removing heat. Cruising for the last few minutes of the drive with air running through the radiator and engine bay is.

 

Maybe. It was a turbonetics cast piece that wasn't exactly known for being a fantastic flowing manifold. It just made it easy to mount a T3/T04E 60 trim on there... Eclipses dont generally run a lot of timing when you're on the stock map as I was, so that could be why it was always running hot. EGTs were always in the 750-800c region at freeway speed.

Agreed.