prawnabie
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| posted on 16/11/09 at 08:50 PM |
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Need a new fuel tank
In anticipation for a european run next year, I am going to replace my tank with a bigger one. The current 20ltr one gives me about 100 miles at
70mph, which means i will have to fill up 3 times before I get to dover!!!!
What sort of capacity tank are you guys running?
Can I get a new tank made which is just taller, or is it better to extend it over the top of the diff? I am not really bothered about losing bootspace
tbh.
Also, is it worth putting a sump into the bottom of the tank - I am using webers and cannot see me upgrading to injection at any point.
Thanks
Shaun
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blakep82
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| posted on 16/11/09 at 08:52 PM |
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a small sump would stop the pump sucking air i guess,
my tank's 36ltrs, but i don't see myself going much further than glasgow (30 miles)
________________________
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flak monkey
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| posted on 16/11/09 at 09:00 PM |
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Always worth adding a small pot to the bottom of the tank as it prevents too much surge uncovering the outlet, wont help much if you run really low on
fuel though.
Mine is 5 gallons there abouts and I managed 150miles before I packed the car up for the winter, no idea whats left in the tank, under a gallon though
I suspect!
When I was planning a trip to Europe I looked at fuel stops and it didnt work out too bad. Especially if you carry a 20L can with you. Though not sure
what the border guys would say about that?
David
Sera
http://www.motosera.com
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dhutch
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| posted on 16/11/09 at 09:11 PM |
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The westfeilds seams to be just under 35, but thats if you totally empty it, and with it being a pain to fill fully 100miles range is about the norm.
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nick205
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| posted on 16/11/09 at 09:15 PM |
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Did you see this thread?
http://www.locostbuilders.co.uk/viewthread.php?tid=124793
Might give you some ideas to go on.
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jacko
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| posted on 16/11/09 at 10:05 PM |
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How about 2 tanks use the 1 you have + one over the diff then after the trip you can remove the 2nd tank 
PS my tank is over the diff and it holds 35lts
[Edited on 16/11/09 by jacko]
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prawnabie
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| posted on 16/11/09 at 10:51 PM |
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I have just been out and measured the tank I have. Its 21cm wide by 24 cm tall and 72cm long.
I work that out to 36 litres? Thats really strange as I can only put just over 20 litres in before it is full!!!
[Edited on 16/11/09 by prawnabie]
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jollygreengiant
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| posted on 16/11/09 at 11:29 PM |
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once you get past the fun side of it and get to the more serrious posting, then there is always this size
fuel tank linky
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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Chippy
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| posted on 16/11/09 at 11:42 PM |
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I managed to make mine to the max available space, while maintaining boot space, (to stow the hood and frame), and managed to get 10 gallons, which at
20 to the gallon gives me around 200 miles. Cheers Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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craig1410
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| posted on 17/11/09 at 12:19 AM |
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Mine holds 40 litres but then again I run a Rover V8 engine...
Actually, on a run of some 140 miles a little while back I averaged 28.6MPG even with some spirited driving and cruising at 70MPH and allegedly beyond
(I don't know 'cause my speedo magnets fell off after 13 miles...) 
I got my tank made by allyfab.co.uk to my own design including a simple sump and two baffle plates which separate the tank into 3 sections of about
equal size with small holes in the baffle plates to allow fuel back through. This also helps to avoid the fuel sloshing side to side when changing
direction quickly which can be enough to unsettle the back end on the limit otherwise. Worst case would be when the tank is half full when around 20
Kg's of fuel would slam into the end of the tank like a very large rubber mallet! The sump design is just a 1" deep circular section
welded to the bottom of the main tank with three large (20mm ish) holes drilled through the tank into the sump.
The idea of the auxiliary tank isn't a bad one in my opinion and might allow you to use a large ally header tank of something to give you the
capacity you need. Obviously you would need a series of breather's and feed pipes arranged and you would need to watch your levels to ensure you
can fill the aux tank without overflowing the main tank at the inlet.
For your info, my allyfab tank cost £150 plus £12 P&P but that was 5 years ago or so. Well worth it in my opinion.
Craig.
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speedyxjs
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| posted on 17/11/09 at 08:27 AM |
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Mine is 10 gallon. The XJS brochure says that the 3.6 would do 30mpg at around 50 iirc. So if we say the lighter locost does 30mpg, that means i will
get 300 miles on a tank. Not sure i beleive the 30mpg though
How long can i resist the temptation to drop a V8 in?
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prawnabie
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| posted on 17/11/09 at 11:36 AM |
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you mean 30 GPM lol
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Marcus
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| posted on 17/11/09 at 01:31 PM |
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I have a 20 litre tank and a 1700 crossflow. Mine did close to 40 mpg on a run to Cannes a couple of years ago. We made a point of stopping every 2
hours to stretch legs, fill up and have a coffee and there was still juice in the tank. We were taking it fairly steady, about 65mph average.
Marcus
Because kits are for girls!!
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prawnabie
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| posted on 20/11/09 at 08:18 PM |
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Can anyone who is still active here make me an ally fuel tank to my dimensions?
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iank
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| posted on 20/11/09 at 09:52 PM |
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quote:
Originally posted by prawnabie
Can anyone who is still active here make me an ally fuel tank to my dimensions?
deneo doesn't post much, but is still active according to his profile (was on yesterday). Try a u2u.
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Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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welderman
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| posted on 20/11/09 at 10:09 PM |
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send me the sizes mate, will price it up for you
Joe
Thank's, Joe 
I don't stalk people
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=172301
Back on with the Fisher Fury R1
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McLannahan
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| posted on 20/11/09 at 10:36 PM |
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Joe /\ made me a lovely fuel tank for my Fury. Highly recommended.
Can't recall how big the tank is but it's massive - lasts for ages!
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