[DeTomaso] Front Heat Exchanger + 2-pass race radiator + taller gears + new race hood = success!

Tue Apr 10 00:16:47 EDT 2007

Trying to lurk in the shadows huh JT?!

  Yea, I remember you passing me while I was at half throttle...I knew it would make you and Bell feel good going around me espially when I watched you all most collide with a another car on the same road! Another good reason to save the racing for the track or a sanctioned ORR. ;-]>

  Whatever cooling problems JT 'THINKS' I had must of been solved by the time I got to the Silver State in September where both my water and oil temps NEVER exceeded 210F! Check out my race report on my web site. 
  www.teampanteraracing.com

  John Taphorn <jtaphorn at kingwoodcable.com> wrote:
  Hey - How did I get drawn into this? I'm not certain what it was perceived 
I was advocating.

Technically, the Dawg is correct that I have not run in a speed class that 
has averaged 125MPH. However, I did pass him on a two laner in excess of 
140MPH. The Dawg is also correct that an oil heat exchanger isn't necessary 
at those speeds. Actually, my oil while driving on the street is generally 
too cool and I took measures to make my cooling system run warmer to 
accommodate it. Thus, most of us don't need a heat exchanger.

My experience with the oil heat exchanger was extraordinary on the race 
track; where it kept previously 300+ degree temps below 240.

I've heard the Dawg previously say that the brand of exchanger he previously 
used was unable to contain his oil temps at sustained high RPM levels in an 
ORR. Unfortunately, he doesn't clarify that his previous cooling system 
(radiator et al) was unable to dissipate enough heat energy from the coolant 
and the car ran hot. The exchanger is very inefficient transferring heat 
energy to the coolant when the coolant is close to boiling temps. Obviously 
the greater the delta between the coolant temps and the oil, the more 
efficiently the exchanger will work. MD, with his new cooling system that 
can maintain lower coolant temps, may now find that a heat exchanger will 
yield a superior experience for him this time around. Many elements are 
interrelated which often why different conclusions on the effectiveness of a 
part may be experienced by different individuals.

JT

----- Original Message ----- 
From: "Mad Dog Antenucci" 
To: 
Cc: 
Sent: Monday, April 09, 2007 11:42 AM
Subject: Re: [DeTomaso] Front Oil Cooler

> No on the front cooler.....Anyone planning to do any endurance or ORR 
> driving needs the BIGGEST Fluidyne heat exchanger and lines they can use. 
> if its just for 20-25 minute open track events then a good Fluidyne 
> air-to-oil cooler will work won't do the job at WOT for much longer then 
> 20 minutes.
>
> And remember JT has never went faster then 125 MPH at an ORR....hell you 
> don't even need an oil cooler for those gramma slow speeds! ;-] But I do 
> agree with you a front monted cooler is a bad idea unless you are planning 
> to run an inline pump which is just another potential failure point ready 
> to happen.
> MD
>
>
> JDeRyke at aol.com wrote:
> In a message dated 4/07/07 8:08:31 AM, ddbt10 at msn.com writes:
>
> << Has anyone located an oil cooler in the front of their Pantera? >>
>
> A factory-option on the GT-5 and GT5-S was a rather small air-to-oil 
> cooler
> set a few inches behind the radiator. There were no ducts either in or 
> out, the
> hard lines running front-to-back next to the big water pipes are 0.340" ID
> (way-too-small) and it may have had a bypass-type hookup which runs the 
> cooler
> in parallel to the main oiling system. I believe they used a stock output 
> oil
> pump. My best guess is the thing is worthless.
> Remember, Panteras do not need oil coolers on the street. But if you must, 
> I
> suggest a water-to-oil cooler made by Laminova or Fluidyne. D Quella, 
> Larry
> Stock. MD Antenucci, J Taphorn and most of the higher-speed ORR group have 
> found
> them simpler to mount, easier to plumb and actually works. The units all 
> pull
> about 20 degrees off the max oil temp while only raising the engine water
> temp by maybe 5 degrees. MIne is the Ford police car unit made by 
> Laminova, and
> on our mostly-street car, oil temp creep was completely eliminated. 
> Different
> than some, I included an oil thermostat so our cooler is not in the system
> unless the oil gets above 180 degrees. Good luck- J Deryke
>
>
>
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Mad Dawg Antenucci 
Team Pantera Racing 
  The 1st & still the only vintage race team in open road racing 
www.teampanteraracing.com