What about the function of allowing cool air flow onto the top area of the
engine to help dissipate the hot exhaust manifold temperatures in the case
of these roadsters?
----- Original Message -----
From: "Erickson, Philip" <philip.erickson@Agouron.COM>
To: "ROADSTER (E-mail)" <datsun-roadsters@autox.team.net>
Sent: Thursday, May 03, 2001 7:49 AM
Subject: hood scoop fully functional
> IMHO, If you are having heating problems, making the hood scoop fully
> functional will only hurt, not help.
> Letting air into the engine compartment will cool the compartment, partly
by
> reducing the air flow through the radiator. The flow through the rad. in
> determined by the pressure differential between the front of the car and
the
> engine compartment. By opening the air scoop to allow more air flow around
> the radiator, you are reducing this pressure differential. I would bet
that
> the small opening is engineered to give the proper compromise of cool air
> into the compartment and flow through the radiator. Usually, if you want
> better cooling, you block the air flow into the engine compartment except
> through the radiator. my .02
>
> 69 SRL
> 67.5 SPL
> Philip Erickson
> San Diego Calif. 92121
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