ewanspence
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| posted on 9/12/04 at 01:16 PM |
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foam filled fuel tanks
This is just a general question. No reason to ask except I read about GT40s and that they have them.
What are the benefits, reasons for them? Is it safety, impact protection...
thanks
Ewan.
P.S. I love the idea of a Locost GT40...that's got me thinking.....need to finish the locost first though 2008 maybe.
Ewan.
Visit the MegaGrip site :-
http://www.geocities.com/ewanspence/
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blueshift
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| posted on 9/12/04 at 01:29 PM |
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I thought it was about stopping surging..
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skinny
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| posted on 9/12/04 at 01:59 PM |
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yeah, i would second that, not entirely sure but thought it was an alternative to baffles?
if you don't fail, you aren't trying hard enough.
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Volvorsport
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| posted on 9/12/04 at 02:26 PM |
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for safety also - take all the available space for oxygen and flame spread , and itl stop most fires , unless you break a union off where it can leak
out .
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Chris Green
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| posted on 9/12/04 at 02:35 PM |
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I don't understand these.
Does the foam absorb the fuel?
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Volvorsport
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| posted on 9/12/04 at 02:53 PM |
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it doesnt absorb fuel , it replces the empty cavity of the tank with a microstructure , which is effective against surge and flame propagation .
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tadltd
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| posted on 9/12/04 at 05:37 PM |
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I've heard they take an age to fill-up, tho'. We were considering one on the LMP but had a re-think because of this very issue. Still
undecided on which route to go for production, as we've never had problems with the standard tank (no foam).
It's also difficult to fill the volume completely due to the sender (and pump if it's an in-tank one) being in the way and having to
operate properly.
Best Regards,
Steve.
www.turnerautosport.com
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Volvorsport
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| posted on 9/12/04 at 06:23 PM |
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on the darrian , we had small tubes down the middle that allowed us to use a dipstick .
another idea , is to put a tube round the sender unit (this should be in the middle of the tank ) and the foam balls then cant interfere with the
sender unit
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andylancaster3000
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| posted on 9/12/04 at 06:46 PM |
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You can buy very low density foam for this purpose, you can practically see through sections about 100mm thick .
My father used it in his race car tank, there never seemed to be a problem filling, then again it was filled from a jerry can rather then a pump.
Andy
[Edited on 9/12/04 by andylancaster3000]
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Fozzie
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| posted on 9/12/04 at 09:48 PM |
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I have got a foam filled tank, no sender, I use a dip stick, (hole cut down the middle). Fill her up at the local garage, no problems at all.
fozzie
'Racing is Life!...anything before or after is just waiting'....Steve McQueen
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novarallycar
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| posted on 10/12/04 at 01:21 AM |
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Another problem with these can be once the foam starts to brak up it clogs up all sorts of filters and pumps .
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Jon Ison
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| posted on 10/12/04 at 05:01 PM |
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Iv'e got a tank in a tank on the GT, the btm as a capacity of 2 galls for racing or general track use, the top just has a baffle so i can fill
up for road use, the btm is foam filled.
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