[DeTomaso] Gr4 Pantera at Le Mans video

Mon Feb 1 23:10:19 EST 2021

  Hey Mike,
    I just viewed the video of the Mueller car and I am wondering how to understand the use of “stock” street Pantera lower rear control arms, along with a “stock” street rear sway bar configuration on this Factory Gr 4 race car ?  Very curious ? ? ?   

Leslie A. Gray

> On Jan 31, 2021, at 2:51 PM, Jack DeRyke via DeTomaso <detomaso at server.detomasolist.com> wrote:
> 
>    I suspect any small speed increase will be due to smoothed airflow over
>   the top of an unlatched hood and over the roof, not so much from
>   increased airflow thru the grille & radiator, then somehow over the
>   weatherstripped front trunk bulkhead and out the rear of the hood. It
>   may be the reverse with vented Sunbeam Tiger LA front hoods.
>   Remember those early comments on windshield wiper lift over 140 mph
>   with stock Panteras, and the Gr-3 (& Hall Pantera) anti-lift wiper
>   accessories to prevent this? That same lift-from-air-flow seems to be
>   pulling up on the front hood. Michael, who made your current front
>   hood? Does it have vents?
>   Curious- J DeRyke
>   -----Original Message-----
>   From: michael frazier <red3644 at hotmail.com>
>   To: Jeff Detrich <jjdetrich at gmail.com>; Mike Drew <mikeldrew at aol.com>
>   Cc: De Tomaso Forum <detomaso at server.detomasolist.com>
>   Sent: Sun, Jan 31, 2021 1:48 pm
>   Subject: Re: [DeTomaso] Gr4 Pantera at Le Mans video
>     While at the Big Bend Open Road Race I've run with the front hood
>     latched and unlatched at speeds between
>     120 and 150mph.  Photos show an obvious bow in the hood while
>   latched.
>     While unlatched, it rose about 2 inches
>     at speed.  The car in the video had a much larger blade type air dam
>     than mine and I'm sure it put much more air thru the
>     radiator and under the hood.  I'm not sure what speeds he was
>   running,
>     but I don't think most of it was much higher.
>     The rear hood also rises smoothly and balances between pressure
>   zones,
>     probably reducing turbulence inside and
>     outside the rear of the car.
>     Jeff, both headlights were up. d-
>     Michael
>     Sent from [1]Mail for Windows 10
>     From: [2]Jeff Detrich
>     Sent: Saturday, January 30, 2021 11:38 AM
>     To: [3]Mike Drew
>     Cc: [4]De Tomaso Forum
>     Subject: Re: [DeTomaso] Gr4 Pantera at Le Mans video
>     OOO-WEE.
>     just curious, is that the right side headlight bucket sticking up?
>     Jeff
>     6559
>>     On Sat, Jan 30, 2021 at 1:23 AM Mike Drew via DeTomaso <
>>     [1]detomaso at server.detomasolist.com> wrote:
>>   Guys,
>> 
>>   From Le Mans Classic in 2018, a great video of the ex-Herbert
>     Muller
>>   factory Gr4 Pantera. The team forgot to secure the front hood
>   and
>     it
>>   floats at speed, which is actually aerodynamically beneficial!
>> 
>>   Great sound, great video....
>> 
>>   [1][2]https://youtu.be/OdKqD_NfXFY
>> 
>>   Mike
>> 
>>   Sent from my iPad
>> 
>> References
>> 
>>   1. [5][3]https://youtu.be/OdKqD_NfXFY
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>     2. mailto:[7]jjdetrich at gmail.com
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>     4. mailto:[9]detomaso at server.detomasolist.com
>     5. [10]https://youtu.be/OdKqD_NfXFY
>     6. [11]http://server.detomasolist.com/mailman/listinfo/detomaso
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> References
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>   2. https://youtu.be/OdKqD_NfXFY
>   3. https://youtu.be/OdKqD_NfXFY
>   4. mailto:DeTomaso at server.detomasolist.com
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>   7. mailto:jjdetrich at gmail.com
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>   9. mailto:detomaso at server.detomasolist.com
>  10. https://youtu.be/OdKqD_NfXFY
>  11. http://server.detomasolist.com/mailman/listinfo/detomaso
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