Hi All
I would really appreciate if somebody could share with me a photo(s) of the
locations where you have inserted foam to block gaps. I have the horn holes
blocked, six blade fan and I am getting ready to install a reduced diameter
pulley. Blocking the gaps seems like another logical step.
Thanks
Jim
-----Original Message-----
From: Smit, Theo
Sent: Wednesday, March 21, 2012 12:42 PM
To: CoolVT@aol.com ; tigers@autox.team.net ; dave@munroe.ca
Subject: Re: [Tigers] Tiger Cooling
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
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