<VV> Engine Compartment Heat WAS Turbo Modifications

[Mark Durham]

Ken, that is why I am taking the opportunity to ceramic coat parts I
don't want to absorb the heat, in a effort to prevent heat related
issues. I'm going to coat the exhaust - to move exhaust heat out the
tailpipe, valve covers- so exhaust does not transmit IN, and tin - to
prevent them rusting due to high temps, but since I want the finned
heads and cylinders to transmit heat away, then they will get non
ceramic paint. I cannot do anything about the heat inherent with a air
cooled engine, but I can direct where it goes and help to prevent
damage due to the heat.

The em's do have the louvers, true, but also I assume a certain amount
of air enters around the deck lid, since there is no gasket to seal
the compartment. Since the air pump on top of the engine only can move
what air the thermostats allow it to move, I don't think there is a
lack of air there. Mark Durham

On Sat, Nov 27, 2010 at 6:19 AM, kenpepke at juno.com <kenpepke at juno.com> wrote:
>
> Heat in the Corvair engine compartment could be more of a problem than we have realized.  One of the worst jobs one may have to do on a hot summer day is change a flat tire.  Lifting the spare out can be a painful experience.  The spare is the hottest tire on the car.  Keeping the heat of the turbo contained can't hurt but, has anyone done an experiment in getting more ambient temperature air into the engine compartment in the first place?
>
> How much air gets into the engine compartment through those EM deck louvers?  The convertible might not be too bad but air flow into a 4 door can't be good.  A string test will show very turbulent air around the grille of a LM.  Perhaps the only incentive for cooling air to enter is provided by the fan lowering the pressure inside the motor compartment.  In any case air is not pressure fed like a front engine car charging into the air.
> Ken P
>
>