[Fot] Cooling fuel to take up less volume

[koblinger at verizon.net]

Well, you could experiment and take a carefully measured amount of fuel, say a liter, and chill it as you plan. Then remeasure it to see how much volume you gain. I assume you have an idea as to how many laps you get out of a liter. Then you could get an idea as to if you gain any real advantage. Joe's idea of insulating the fuel tank is good, but your competitors would see that and go "Hmmmm, what's he up to." 

Cheers,
Kurt


>From: "David W. Riddle" <dave at microworks.net>
>Date: 2007/10/22 Mon AM 12:33:31 CDT
>To: fot at autox.team.net, 
	"wheeltowheel at wheeltowheel.com" <wheeltowheel at wheeltowheel.com>, 
	william.r.riddle at usmc.mil, ssedmonds at cox.net, scott at microworks.net, 
	members at dctra.org
>Subject: [Fot] Cooling fuel to take up less volume

>With the controversy from the F1 race today and the possible cooling 
>of fuel by BMW and Williams and the idea of cooling the fuel to get 
>it to take up less volume got me thinking.
>
>Next month on the 25th my Son will have a 45 minute Endurance race on 
>his 125 shifter at Firebird Main.  Normally there is no way that a 
>fuel hungry "built" 125 shifter motor can go that distance on the 
>single 9 liter tank that we are allowed to run.
>
>The fuel rules as presented for this race.
>
>---------------
>* No mandatory stops.
>* 9 liter maximum fuel capacity (2.37 gallons) for TAG and Shifter groups.
>This is equal to the largest normally available plastic tanks.
>* No unusual fuel line or filter set ups.
>* No auxiliary fuel tanks.
>* Recommended that no more than 1 gallon be added when refueling.
>* No pressurized refueling systems.
>---------------
>
>Now, the supplemental rules do not say anything about cooling the 
>fuel and the normal rules only address the use of prohibited cooling 
>"systems".  I'm thinking I ought to take a chance a fill a container 
>with our mixed fuel and keep it in an ice cooler until just before 
>the race.  After qualifying drain the tank.  Push the kart to grid 
>and then fill the tank there on the grid just before time to push off 
>for the race.
>
>Think the increased density of the chilled fuel would make a 
>measurable difference in the capacity that I'm talking about?  If so 
>this seems like it might be in the best tradition of Mark Donahue.
>
>No fuel gauge on a kart and once the level drops below a certain 
>volume the driver can't see how much fuel is left in the tank.  I'm 
>planning on testing during practice and qualifying to see if I can 
>check his fuel level with binoculars so that I can determine if I 
>need to hang a sign to pit for fuel.
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