[DeTomaso] Simple question on Condenser fan

[Tomas Gunnarsson]

Not long ago someone taped plastic strips to the rear panel of a Pantera
and filmed them while driving. When the car got moving the strips were
sucked up against the condenser grille indicating a spontaneous air flow
in the direction that the fan is working. Instead of building air ducts
under the car I suggest spending the time and effort moving the
condenser to the front instead.
 
Tomas

---Ursprungligt Meddelande----->
From: Jeff Cobb [jeffcobb1 at me.com]
Sent: 18/9/2012 2:39:36 AM
To: JDeRyke at aol.com; DeTomaso at realbig.com
Subject: Re: [DeTomaso] Simple question on Condenser fan

I am not sure about the Pantera but I looked at my Mangusta today and
what I propose seems possible. No doubt with the made to modify Pantera,
some type of redesign on this level has been dealt with before. 
It seem plausible to use a low wide scoop under or next to the tub to
direct laminar high pressure air upwards behind the tub to flow out the
rear grill to the low pressure area behind the car, this would be a
natural flow while the fan would flow rearward. This would then fill the
low pressure area with air that would cool the condenser better than a
fan, would get colder with speed and, clean up the rear breakaway air
flow and on some level permit some type of negative lift. 
Just seems wrong to suck air from low pressure to a high pressure and
against direction of car.
Just my two pesos.
Just a thought.
Jeff Cobb

On Sep 16, 2012, at 4:07 PM, JDeRyke at aol.com wrote:

> Not only should the system blow into the condenser from the outside,
the 
> rear luggage tub is a vital part of the assembly in directing the
airflow down 
> towards the pavement so it doesn't go into a continuously heating
loop. But 
> in even the best running system, expect the AC 'coolness' output to 
> decrease with speed until around 120 mph, there will be none. Suggest
cracking a 
> side window at these speeds. This is also the point at which the stock
system 
> is in danger of overpressurizing and blowing a hose. Yet another
possible 
> couple of upgrade for your list: an over-pressure switch plumbed into
the AC 
> lines. Its also quite possible to move the rear condenser to in front
of the 
> radiator without affecting engine cooling. Quite a few Pantera run
this 
> system. Good luck- J DeRyke
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