Allan,
With a stock engine I think the problem is much easier solved. Double the
HP and it doubles the trouble.....it seems.
Mark
In a message dated 3/21/2012 1:02:25 P.M. Eastern Daylight Time,
aballard@ix.netcom.com writes:
After reading the tech articles, I added a pusher fan and horn hole
blocking plates.
The radiator was recored to stock specifications.
The PO had added a 6 blade water pump fan.
Now my Tiger will idle for an hour or more in 100 degree Atlanta heat
without going over 200 degrees.
I will also seal the bottom of the shroud this summer which should help a
few degrees.
Allan Ballard
Mk1a
Sent from my iPhone
On Mar 21, 2012, at 12:42 PM, "Smit, Theo" <Theo.Smit@dynastream.com>
wrote:
> Hi Mark,
> I don't think that there are any quick cooling aids for the Tiger - all
of
> them require attention to detail to get more than just a marginal
benefit.
>
> The Cressida fan is about 12" diameter and has an integrated steel
shroud; it
> just barely fits below the sheetmetal in the nose. I used foam adhesive
tape
> to seal the gap between the rad matrix and the shroud. The problem you
always
> have with pusher fans is that the motor obscures some of the available
area; a
> second thing is that if the gaps aren't filled, then the air can just go
out
> the side rather than through the radiator. The reason why I used this
fan is
> that it was evidently designed from the outset as a pusher application.
A lot
> of aftermarket fans are designed as a puller, and then when they're used
in a
> pusher application they really don't move anywhere near the air that
they're
> supposedly rated at.
>
> The only thing that would be nice is to have a similar fan, but larger,
so
> that it would move more air over more of the radiator. You'd end up with
part
> of the fan output deadheading against the lower radiator support though.
>
> Moving air through half the rad should be more than sufficient, since
the fan
> is only required to boost airflow at low speeds. You just have to make
sure
> that the air you're moving is really going through the rad rather than
around
> it, and that it's moving with sufficient speed.
> A secondary issue is that if the fan only covers part of the radiator
core,
> are those core tubes actually flowing enough coolant to do the job?
>
> Theo
>
> ________________________________
> This e-mail and any attachments may contain confidential material for
the sole
> use of the intended recipient. If you are not the intended recipient,
please
> be aware that any disclosure, copying, distribution or use of this
e-mail or
> any attachment is prohibited. If you have received this e-mail in error,
> please contact the sender and delete all copies.
>
> Thank you for your cooperation.
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe:
http://autox.team.net/mailman/options/tigers/aballard@ix.netcom.com
_______________________________________________
tigers@autox.team.net
Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe:
http://autox.team.net/mailman/options/tigers/tigers-archive@autox.team.net
|