[DeTomaso] Front trunk fuel cell?

[Gray Gregory]

Michael,

If you're talking about LeMans Classic each race is 1hr long and you are required one stop; however re-fueling is not allowed in the pits so if you don't have enough fuel on board to make the full hour you have to go back to the paddock to re-fuel. Depending on your particular groups paddock location it is possible to do this in the 5min pit stop time but definitely not guaranteed.

Other Euro events might have different rules? Most of the Vintage endures in the US allow re-fueling on pit lane as long as the driver is out of the car and the crew has fire suits and a fire extinguisher.

Gray

From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of michael at michaelshortt.com
Sent: Sunday, November 17, 2013 6:34 PM
To: Tomas Gunnarsson
Cc: MikeLDrew at aol.com; detomaso at poca.com; geoff.peters at appliedenergy.co.uk; james at mcalpine.com
Subject: Re: [DeTomaso] Front trunk fuel cell?


Not much info stat-wise on thr evrnt online.
>From what I can piece together, these vintage races are 2 hours long, they use the 8.48 mile/13.65 k course. 1972 championship lap avg speeds were in the 138 range.
So is it safe to assume that
130 mph is an avg now for people who do care if their car is damaged?
2 hours at 130 = 260 miles
Divided by 6 mpg = 44ish gallons.
Do you make a single refueling stop? Just one?
So 22-23 gallons onboard?

23 gallons = 150 lbs.

Or 2 fuel stops with a 15 gallon cell?

15 gallons = 98 lbs.

Is this about right?

The size that you need is
About 23 or 15 gallons?

1 cubic foot = 7.5 gallons

So you need either 2 or 3 cubic feet of of fuel cell capacity.

I think between the area in the boot not used by the brake systems and the battery that 2 would be easy to achieve. 3 might require a secondary cell location.

Michael Shortt
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