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Old 06-06-2008, 10:26 PM   #1
matemike
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Fuel Level

Is fuel level a big deal when hitting the track? I ask because I'm wondering if the shift in weight of a half-full tank would greatly effect the lean/handling of the machine. That could me more that 15 pounds sloshing around.


Also, could that little bit of extra weight make the difference in lap times. A full tank prolly has about 25 lbs of gas in it. But I know to be careful to not run out!!!
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Old 06-06-2008, 10:46 PM   #2
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I fill mine depending on the stiuation, track days ill start with full tank and go about 2 sessions before refilling. A race i will go between 1/2 and 3/4 tank depending if i have back to back. Im not sure what difference it makes but i figure 10lbs is a small difference. that just me though.
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Old 06-06-2008, 11:41 PM   #3
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I start with a full tank and run it until the light comes on, then refill.

When I race endurance, our tank has extra capacity, and I don't notice much if any difference between the beginning of the stint and the end.

Shortly, you'll very likely never notice any difference and it won't affect your performance/ cornering/ weight transfer to any sort of noticeable degree.
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Old 06-07-2008, 08:21 AM   #4
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I've been wandering the same thing. the last day I corner worked a guy ran out of gas on the track. He said he had just put gas in it and I was really confused I thought maybe it was leaking. he then told me he only puts a little, because when its full its too heavy and hard to turn. I remember thinking, "sure 25lbs of gas doesn't make that much of a difference"
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Old 06-07-2008, 08:40 AM   #5
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Keep it full at all times. It's better than running out of gas...

Just my .02
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Old 06-07-2008, 11:08 AM   #6
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Trackdays I start the day full and add accordingly. Sprint racing I only use half a tank and add one gallon after each sprint. 2 extra gallons in tank is around 16-17 pounds. Thats extra weight to accelerate and to stop so why not shave the weight.
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Old 06-07-2008, 01:55 PM   #7
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Quote:
Originally Posted by [poser] View Post
I've been wandering the same thing. the last day I corner worked a guy ran out of gas on the track. He said he had just put gas in it and I was really confused I thought maybe it was leaking. he then told me he only puts a little, because when its full its too heavy and hard to turn. I remember thinking, "sure 25lbs of gas doesn't make that much of a difference"
He's full of _____.
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Old 06-07-2008, 04:33 PM   #8
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Most of the new SS bikes the tank is almost under the seat.. the front half is the air box cover... so the weight is lower, more central on the bike. I can't imagine anyone but a top level pro is going to notice the weight of a gallon or two.
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