Either I forgot something I read and or I misinterpreted it, but wouldn't a
larger pump pulley SLOW the water pump?? Rather than speed it up. Or is that
what I misinterpreted.
I take as my basis for this theory that the cam gear is larger than the
crank gear. This is so that the cam turns once for every 2 crank turns.
Intake valve opens once for every two "up" sweeps of the piston. Right??
So if you increase the diameter of the water pump pulley won't it turn
slower than stock?? I assume that in those hi-revving engines this is to
reduce cavitation.
I am not a thermodynamicist, nor do I play one on television.
Just thinking with my mind open.
Larry
On 9/28/01 9:45 PM, "Mike & Kerry Gigante" <mikeg@vicnet.net.au> wrote:
> A couple of quick points from direct experience
>
> a) large pulleys are only useful for *high revving* engines, not *hot* engines
>
> b) use a pipe to connect the heater outlet in the rear of the head directly
> to
> the top radiator hose (i.e. get rid of the tap nd the heater itself)
>
> c) replace the radiator with a modern, high efficiency core or a similar
> 'foreign'
> radiator. Triple coreing a Sprite radiator isn't all that effective.
>
> Tony Bennetto at the Bugeyebarn has done 2 radiators for me. I run them in
> competition
> in *hot* weather and haven't had had any overheating problems since. Prior to
> that I had
> been using a large RX7 radiator and had still had overheating problems. He
> charges a
> very reasonable price (I'd guess you might get it delivered to you in the US
> and still have change
> from $200 - but you'd have to get him a core...)
>
> Some of the racers here have had great success with the radiator from a 1985
> Suzuki Swift.
>
> Mike
>
--
Larry Macy
78 Midget
Keep your top down and your chin up.
Larry B. Macy, Ph.D.
macy@bblmail.psycha.upenn.edu
System Manager/Administrator
Neuropsychiatry Section
Department of Psychiatry
University of Pennsylvania
3400 Spruce St. - 10 Gates
Philadelphia, PA 19104
Ask a question and you're a fool for three minutes; do not ask a question
and you're a fool for the rest of your life.
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