Could it be, that in these debates, that there are different best solutions
for different people?
We each have our own set of preferences and different environments. For
example, I commute in mixed stoplight-stoplight and highway travel in temps
at 100F every day (Arizona Desert). For me, I need the fan on all the time.
The TFS mod is for me. And, I do like the fan reversal idea, since there
are times where I wish for asbestos knee guards.
I may install a manual switch in the winter, if the fan stays on too long
for the temps at the time.
The point is that not every mod is right for everyone. Choose what works
for you, ignore the rest.
Matt
'00 V-Max
VMOA 1257
http://vmax.caber.com
-----Original Message-----
From: Mike Oberle [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 18, 2000 3:59 AM
To: V-MAX TECH LIST
Subject: Airflow re-engineering...
This is my solution to the airflow issue - modulate the fan speed.
I am investigating replacement of the fan with something more intelligent.
In many data equipment applications the fans also have thermistors and tach
outputs. A small (and conveniently 12V) circuit controls fan RPM based on
temperature.
I am in the process of experimenting with a fan/control combination that
works in direct proportion to the engine temp instead of ON/OFF. With a
non-thermistor fan I may end up replacing my fan-switch with a temp sending
unit. That way I have a value (R) to scale fan speed against.
The most extreme iteration would also know through a speed sensor if you
were moving or not and might reverse the fan at 0-2 mph so your knees aren't
cooked.
Mike Oberle
[EMAIL PROTECTED]
====================
1990 Midnight Blue
-----Original Message-----
From: Thomas Powell [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 18, 2000 3:01 AM
To: V-MAX TECH LIST
Subject: Re: Borg-Warner, Wells, etc.
This whole fan switch thing bothers me and this last "E" I guess was the
kicker.
For one I do not understand how changing a switch will by miracle keep the
savage beast cool. My fan is running just fine as I watch the temp climb
when I am in traffic. It does not matter what turned it on or when, it is
still on and the temps are still climbing. The new temp switch does not
make it run faster. I never had a problem with heat with the stock engine.
It would actually cycle on and off in traffic. The only time it has gotten
hotter than I want now is on a couple of occasions when I was stuck in
traffic and the 10-15 mph trade winds here (which can be a blessing) are at
my back so I have to be going over 10-15 before there is any air flow
through the radiator from forward motion. The problem I see it is not the
size of the radiator or the temp the fan cuts on but the air flow of the
fan. As soon as I get going she cools back down so the radiator is enough,
just not enough air flow. I really do not know why you would install a temp
switch that will basically keep the fan on unless you are traveling at fair
speeds (from what I understand) when it is not needed. And with the
marginal charging the beast has why have the fan going when it is not
needed? Then, talk about putting in a switch that will cut off the fan when
you do not need it. Why spend the money for the temp switch in the first
place? Just put in a manual switch to cut the fan on ahead of time when you
see or expect traffic so it can get ahead of the heat build-up. I still am
pretty sure that if I am in the same situation long enough she will heat up
again. I definately am not trying to step on any toes here, maybe I am not
getting the big picture. I am thinking about putting in a manual control
switch for the fan. The real fix is something that will replace the stock
fan that will push enough air. Anybody got a junkyard close to them where
they can do some investigating?
====================================
Thomas and Carrie Powell
1994 NOS injected
Tourmaster V-Max
"LAFGAS"
[EMAIL PROTECTED]
http://albums.photopoint.com/j/AlbumList?u=957019
====================================
----- Original Message -----
From: Dennis Clarke <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Monday, July 17, 2000 12:37 PM
Subject: Borg-Warner, Wells, etc.
> Hello there,
>
> just want to mention here guys,,, that when running the Borg Warner
thermal
> switch you can wire in an on off switch. so you can turn the fan off when
> not needed (like on the highway) or whenever.
>
> theBorg-Warner keeps the fan on much of the time, even below midpoint on
the
> gauge? I'd rather have the fan running almost constantly, instead of
> flirting with the red line all the time.
> ________________________________________________________________________
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