[DeTomaso] Simple question on Condenser fan

[gow2 at rc-tech.net]

I think that is like holding a glass out the window and the airflow lifts
the water out of the glass. In this case the opening to the glass so to
speak would be the area under the car under the engine bay. If it is
pulling this air out then it would be natural for it to pull in through
the back.

It would make sense to want to push it out of the back if you could, (not
for cooling the condenser but for pulling the air out from underneath the
car) but it apparently is not practical as it would oppose normal flow.


> Matt Wells did some road testing with yarn tufts and a camera, with
> and without the fan running.  His videos are on YouTube.
>
> The condensor, apparently doesn't even really need the fan and yes, it
> sucks -in- toward the tub, not the other way round which you would
> think it more intuitive.  (if I recall everything correctly)
>
> Weird, I know... go look at the videos.
> Asa Jay
>
> Quoting Jeff Cobb <jeffcobb1 at me.com>:
>
>> 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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>
>
> --
> Asa Jay Laughton - sent from somewhere other than home
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