Dave -
How hot exactly is "hot'? 200, 212, 230 ...? And whereabouts do you drive?
I'm in So Cal but near the beach so not terribly hot yet, but running in
70 & 80s this month. My Bugeye is running at 160-170 while cruising and
up to 175 at longish stoplights. This is a 1380 engine so plenty of heat
generated.
Like you I have a oil cooler (mounted sideway on radiator support
bracket directly behind heater openning in bonnet), a blanking sleeve in
place of t-stat, and blocked by-pass. Running about 80% water - 20%
anti-freeze, and stock yellow plastic fan.
I think the main 2 things keeping my temperature down are my radiator
and water pump. I am running the original downflow radiator - but with
a new off-set 3 row core, so more cooling space. The water pump is a
larger deep-impeller type, and has a larger pulley, so as you say the
water is moving more slowly thru radiator (more time to lose heat).
If you haven't yet, I would suggest checking your radiator to make sure
its up to "snuff". Maybe replace the crossflow with an aluminum radiator
out of one of the popular mini Japanese or American cars (Frank C or
Glenn B can recommend the best ones).Then think about a deep impeller
water pump and finally the larger pulley.
Good luck,
Jim Rogers
San Juan Capistrano, CA
Captain Rapture wrote:
>A nicely hopped up motor is a thing of joy, but it puts
>out more heat. The Kenlowe fan helps in town and
>the oil cooler below the rad is vented and helping.
>I took out the mechanical fanny.
>
>I also installed an inlet like for the heater on the carb
>side to supply cool air to the Weber. Am I stealing too
>much air from the standard crossflow radiator?
>
>There is a blanking sleeve and the bypass is blocked.
>I can try a larger water pump pulley to slow the flow.
>I run coolant to the heater core at all times so circulation
>to number four is good, but I don't want as much heat
>as this 1275 puts out.
>
>A neat trick might be to somehow alter the heater
>so, when you want, the heat is vented directly out
>of the car, utilizing the heater core for cooling when
>you don't need heat otherwise. Maybe an MGB-style
>vent atop the cowl? Is this a high pressure area or
>might it help siphon air thru the core?
>
>I run a little water wetter and about 1/3 anti-friz.
>No leaks, so the pressure cap at 15# is helping raise
>the boiling point.
>
>Wot am I missing?
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