I don't know if this is true or not. I have heard that fans located on both
sides of the engine facing down, pulling air out of the engine compartment has
a tremendous effect. The aerodynamics of the car seems to create a high
pressure area just below the engine
compartment keeping the air from effectively flowing out. Just a thought.
Mike MacLean-60 Sprite
mgraziano@mindspring.com wrote:
> Mike & RH,
>
> I have the exact same problem as the both of you. We're experiencing vapor
>lock. I plan on buying one of those 12V 5" computer fans, and use flexible
>gutter hose (the 5" black kind for under the dirt) to feed the fan with fresh
>air blowing directly under the carbs.
>
> As an alternative, I may actually use the duct and fan to remove the hot air
>(i.e. the fan pulling the hot air into the duct), which I think may be better.
> The only problem I forsee is that I may melt the fan on really hot days when
>I need it most.
>
> My GM alternator should be up to the challenge.
>
> PS: I also have twin SUs, an aluminum heat shield, and a header (which is
>worse than a manifold).
>
> Mike
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