[Tigers] Tiger Cooling

[Jay Laifman]

I had a similar thing happen when I rebuilt my 1725cc Alpine with almost
1900cc (yeah, I know, a staggering increase - 8x that increase and I'll
just scratch a 260), and the higher performance head, cam and Webers.  But,
what I have always felt actually happened was that during the rebuild, all
the sludge in the block was removed and the passageways in the head were
all cleared, so that it just was a better working system.

Jay

On Thu, Mar 22, 2012 at 6:18 AM, Allan Ballard <aballard at ix.netcom.com>wrote:

> Mark,
>
>
> My experience has been the opposite.
>
> My stock 260 ran hot, too hot for idling in Atlanta
> traffic.
>
> The replacement 289 building ~270 rear wheel
> horsepower will idle forever in 100 degree Atlanta
> traffic without going over 200 degrees.
>
> The suggestions in the United article Do work.
>
> I forgot to add that I also installed a smaller
> pully along with horn hole blocks and a pusher
> fan, with a recored stock radiator.
>
> Allan
> Mk1a
>
>
> Sent from my iPhone
>
> On Mar 21, 2012, at 1:31 PM, CoolVT at aol.com wrote:
>
> > 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
> _______________________________________________
>
> 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/jay.laifman@gmail.com