[DeTomaso] Predicted mileage at 200 MPH

[Will Kooiman]

That's because some spills out when you go spinning off the track.

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of David & Marilyn Bell
Sent: Wednesday, April 04, 2007 11:27 PM
To: Ken Green; Detomaso at Realbig. Com
Subject: Re: [DeTomaso] Predicted mileage at 200 MPH

I don't think that's low enough.  I routinely run my Pantera's 20 gallon
tank practically dry after 4 track sessions at TWS, which usually ends up
being very close to 100 miles.  That works out to only around 5 miles per
gallon through my 750 Holley using my measly 302 rwhp.  And I'm not even
running WOT all the way around the track as I do have to brake occasionally.

Dave Bell

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]On
Behalf Of Ken Green
Sent: Wednesday, April 04, 2007 3:44 PM
To: detomaso at realbig.com; Blaine Carmena
Subject: [DeTomaso] Predicted mileage at 200 MPH

Out of curiosity, I tried to estimate how much gas would be burned to travel
100 miles at 200 MPH assuming 500 HP is required to maintain speed.  I came
up with:


  1 HP = 42.21 Btu/min
  so,   500 HP = 21,205 Btu/min at 100% efficiency energy conversion
  but assuming 33% efficiency, 500 HP requires 63,615 Btu/min

  1 gallon of gasoline contain 115,000 to 125,000 BTUs

  at 120,000 Btu/gal, 500 HP will burn about 1/2 gallons per minute
  so, at 200 MPH, it takes 30 minutes to travel 100 miles, and 15 gallons of
gasoline.

  It seems reasonable, about 6 MPG.  I've never done this kind of
calculation before, does anyone see an obvious error?

  Ken
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