[DeTomaso] Cooling system hose questions
Asa Jay Laughton
asajay at asajay.com
Thu May 28 23:13:23 EDT 2009
Maybe I should just mount them on the front. As long as I have a decent
seal around the edge, I should accomplish essentially the same thing
shouldn't I?
Comments?
Asa Jay
Asa Jay Laughton, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
1971 Mach I Mustang [ASA JAY]
1973 Pantera L 5533 [ASASCAT]
******************************
http://www.asajay.com
http://www.teampanteraracing.com
Asa Jay Laughton wrote:
> Okay, obviously I'm not communicating this correctly. The fan blades
> are -straight- from the center hub to the outside ring. There is no
> curve to them between the hub and the ring. We'll say each blade is
> about six inches long by about two inches wide. The blade is straight
> along it's length. The blade is convex, or curved across the width.
>
> Stock Pantera fan:
> http://www.teampanteraracing.com/index.php?option=com_g2bridge&view=gallery&Itemid=57&g2_itemId=2554
>
> Note how it has a curved (convex) blade that effectively -scoops- the
> air as the blade goes around, blowing air into the radiator.
>
>
> Now look at the dual fan assembly here:
> http://www.teampanteraracing.com/index.php?option=com_g2bridge&view=gallery&Itemid=57&g2_itemId=2548
> http://www.teampanteraracing.com/index.php?option=com_g2bridge&view=gallery&Itemid=57&g2_itemId=2551
>
> Note how it too has curved blades, but also note that when mounted to
> the -back- of a radiator, in a sucker arrangement, -and- the fan turning
> in the correct direction to suck air through the radiator, the curve
> will not be scooping the air. To me, this creates an inefficiency.
>
> Do the photos help?
> Asa Jay
>
>
> Asa Jay Laughton, MSgt, USAFR, Retired
>
> & Shelley Marie
> Spokane, WA
>
> 1971 Mach I Mustang [ASA JAY]
> 1973 Pantera L 5533 [ASASCAT]
>
> ******************************
> http://www.asajay.com
> http://www.teampanteraracing.com
>
>
>
>
> MikeLDrew at aol.com wrote:
>
>> In a message dated 5/28/09 13 51 16, asajay at asajay.com writes:
>>
>>
>>
>>
>>> I don't mind the curve, what I mind is that it's not "scooping" the
>>> air with the curve. Imagine for a moment, mounting an orignal Pantera
>>> fan on the motor backwards, so the curve is the wrong way. It still
>>> works if the motor turns the right way, but how less efficient is it?
>>>
>>>
>>>
>>>>> Scimitar fans don't work by scooping the air. They are deliberately
>>>>>
>>>>>
>> curved so that the outside of the fan blade trails the inside by several
>> inches. I don't understand why it's better, but it's the latest trend in
>> propeller/fan aerodynamics. Among other things, it is much quieter. From the
>> Spal website FAQ section:
>>
>> Q. What's the difference between the straight blade fans and the curved
>> blade fans?
>> A. The straight blade fans provide maximum cooling for their size. The
>> curved blade fans sacrifice a small amount of performance in return for a
>> much quieter fan. If noise is an issue, go with the curved blade fans. If
>> ultimate performance is the objective, use the straight blade fans.
>>
>> Mike
>>
>>
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