Wound Up wrote:
> While we're on the topic of cooling, I have used two different fans,
> two t-stats and two radiators in an effort to keep my aftermarket
> A/C-equipped '67 from running too hot.
> Currently, I have a clean 3-row (scale problem wasn't bad) steel rad,
> the largest 6-blade thermo clutched fan that would fit the shroud, a
> 180 thermostat, and recently added one of those cylindrical overflow
> tanks. The A/C system is a 1.8 lb. R134 Vintage Air setup. I'll be
> damned if I can keep it properly cooled here in Hot Louis. I do run
> a fairly aggressive timing curve, and a fairly hot electronic
> ignition (Pertronix coil and module). I run it as leanly as is ...
> well, as I really should, you know. The little motor doesn't quite
> get too stanking hot to start, but it does struggle at times if I'm
> just running around in the heat. Cruising is fine. Traffic and
> stop-and-go blows. When it really gets hot, the A/C actually becomes
> counterproductive, if you know what I mean...
> So now I am thinking high-capacity electric fan, also to loosen up
> some torque, and save a little gas. Advertising doesn't help me. I
> once read of a slick elec. fan conversion that flowed something like
> 1900 cfm in M&F years ago but I can't remember. Any recommendations?
My '68 Cougar with a 302/C4 and AC runs hot. Went from rebuilt 3 row to new
4 row to Griffin aluminum rad, shrouds on all. Regular to high-flow WP: no
diff. Mechanical or clutch fan, no diff. High-flow T-stat: no diff.
Water Wetter: no diff. Moved the trans cooler from the rad to external: no
diff. Over time, the whole of the changes helped a little. When I added
an oil cooler, tucked into the front of the driver's side fenderwell, that
seems to have been the added heat rejection needed to keep it under 205 on
really hot days. The cooler has an electric fan, but I have yet to power it
since it's been OK and not even gotten to the point where overheating seemed
to be imminent as before.
I got a two-speed Taurus fan, but there is not enough room between the WP
and the rad to fit it. Early on, I got a Black Magic fan: not enough room.
So,no 'lectric fan.
I would suggest first that you add an oil cooler. As for a decent puller
electric fan, I doubt you have any more room than I do.
Same clearance issue with the '58. Even with a '68 429 Tbird shorty WP,
can't fit the damn Taurus fan. I have the f row rad in it and with a simple
18" electric pusher it does not cool enough at low speeds. I am thinking of
trying the old 3 row in it to see if the 4 row core has too much airflow
resistance. I will also try to add a mechanical fan, although clearance
between the blades and the WP is an issue without running into the rad.
My diesel truck runs on used veg oil!
My 1958 Ford
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