Exposing your engine!

[Chris Duncan]

"I need to experiment more, but indications are that quite a lot of the incoming air is coming up from below the separator. It possible we all should be talking about how to seal this area not open it up"

Agree, the original cars were 99 percent sealed with a turkey pan under the carbs and fiberglass that comes down to meet it on the rear clip, sealed with a rubber gasket.

 

[Howard Jones]

Alain, You MUST add a better heat shield to the underside of the rear clip. The stuff I used keeps the heat transfer to the paint side of the body low enough that you can place your hand flat onto it for as long as you like. I believe that a hot day in the sun on a dark color gets hotter.

Jegs has the stuff and so does www.racerwholesale.com or www.racerpartswholesale.com. You will need their catalog so send for one, this stuff isn't on the on line catalog. It is light weight, thin aprox 1/4"thick, and glues on with a high temp spray on glue. Some sort of mylar (sp) with a bonded on alum coating.

 

[Fred/Belgium]

I also have square openings just above the rear lights like the 1968 Gulf had wich gave incremental hot air outlet with the detail that there are also the foglights placed inside.
If you want a pic I can send it by seperate mail.
Fred

 

[Alain Vanhollebeke]

Hmmm, interesting info about the stasinless.
I admit that my "stainless may not be the best choice" statement was based primarily on my noticing that they sure seemed to cool off quickly once the engine was turned off.
From this, I "assumed" the heat was being transfered quickly onto the other surfaces near the exhaust.

The area I noticed it the most is right at the rear corners of the engine where the four tubes merge into the collector.
This area seems to be the closest to the body work on my NA car, and it really heats up the "duct" area that is suppoed to allow fresh air into the body for the induction.

The muffler area is fine, with no issues at all there.

I think I just need to find a better heat shield material for the body than the stuff that is already there.

One thing I would love to see, is a side by side comparison of the various heat shield products available at the moment.
Seems like there are quite a few choices, and they all say theirs is the best.


Hmmm, I have an infared gun in my tool box,,,,,,,
if I ever have a spare momoent, I could do some testing myself. :rolleyes