G'day
I seem to recall that if you lived in what BMC called a tropical area
(Singapore, Caribbean and so on) and you ordered a new six-cylinder
Austin-Healey it came with a tropical radiator fan which consisted of three
double-ended blades for an increased air flow.
The big problem with all production six-cylinder Austin-Healeys was that
from the earliest BN4 through to the last BJ8 they were all fitted with the
same size and capacity radiator.
So how did BMC engineers deal with the heat generated through an increase in
horsepower from 102bhp to 148bhp? As the power increased so did the pressure
rating of the radiator cap.
Unfortunately once the Austin-Healey was assembled at Abingdon it became
second cousin to the MG and minimal development money was spent on the
marque.
Hoo Roo
Patrick Quinn
Blue Mountains, Australia
-----Original Message-----
From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of
rd_parker@juno.com
Sent: Wednesday, 15 October 2014 12:16 PM
To: ah3000me@gmail.com
Cc: healeys@autox.team.net
Subject: Re: [Healeys] Aluminum Radiator
No but it sounds logical.
RDP.
1961 BT7.
On Tue, 14 Oct 2014 20:44:47 -0400 Tom <ah3000me@gmail.com> writes:
> I had my radiator re-cored with a modern core, and my car's temps run
> around 180-190 at speed, even climbing the hills on I-89 in NH.
>
> In his Tech Talk book, Norman Nock suggested adding a third blade to
> our
> two-blade fans to move more air a low speeds. Anyone tried this
> and seen
> much improvement in stop and go driving?
>
> - Tom
>
>
>
> > -----Original Message-----
> > From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of
> Bob
> > Spidell
> > Sent: Tuesday, October 14, 2014 11:15 AM
> > To: Steven Kingsbury
> > Cc: healeys
> > Subject: Re: [Healeys] Aluminum Radiator
> >
> > Cool :) FWIW, that's pretty much how my BJ8 behaves with a stock
> radiator
> > and Texas Cooler fan. Are you running a stock BN1 fan?
> >
> > On a side note, does anyone know why our cars routinely run under
> the
> > thermostat set point? For example, I have a 180degF thermostat in
> my BJ8,
> > and on not-hot days on the freeway it may run around 160degF.
> Under warmer
> > conditions with more of a load it'll hold 180 until stuck in
> traffic, etc.
> > then goes up 10-20 degrees. The thermostat should stay closed
> until
> > reaching
> > the set point--e.g. 180--then open and maintain that temperature
> until the
> > the radiator can no longer, well, radiate all the heat produced by
> the
> > engine. Is it possible our engines are being air-cooled enough to
> stay
> > under
> > the thermostat set point under benign temp and load conditions?
> >
> > Bob
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