My posts don't seem to show up.
----- Original Message -----
From: "Mike Pittinaro" <mechimike@xxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Wednesday, June 16, 2004 7:28 AM
Subject: Re: IML: '68 running warm <--my '67, too!
> > the aerodynamics are such that too much air gets
> > around instead of through
> > the radiator if the fan isn't doing it's job. Of
> > course there is a lot more
> > heat rejection at high speeds also (that extra gas
> > goes partly into heat).
>
> Partly? I think the efficiency of a MODERN engine is
> only around 20%. I'm pretty sure that ol' 440 is
> heating up like an oven at high speed. Luckily,
> there's so much metal there to heat up. Interesting
> about the areodynamics, though. It would be fun to
> put one of the old boxcars into a wind tunnel and see
> how it did. Dimitris Dardalis has an air dam he put
> together out of sheet metal at the lower leading edge
> of his '68, below the bumper. I wonder how that would
> affect airflow, and if it improves flow thru the
> radiator.
>
> I'm a big fan (pun partially intended) of electric
> fans. They are much more efficient than mechanical
> fans, even clutch fans, and extend water pump life
> greatly. I've used them with good luck on everything
> from 2 litre 4 bangers to the 6 litre small block in
> my Satellite. I'm definitely considering a setup for
> the Imperial...especially if I get the A/C charged up
> this summer.
>
> > Another cause of high speed overheating is the lack
> > of an anti-collapse
> > spring in the lower radiator hose. The average gas
>
> Good point. My volvo was missing its, and I formed a
> spring out of coat hanger wire wrapped around a broom
> handle. With a little finnessing it fit perfectly.
>
> We mechanical engineers, we're good at making things
> out of coat hangers.
>
> =====
> --Mike Pittinaro
>
> One point eight litres
> Stromberg carburators sing
> Loose nut at the wheel
>
>
>
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