[Tigers] Tiger Cooling

[CoolVT at aol.com]

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 at 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 at 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 at 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