KTM 950/990 Adv UNDERSEAT TANK

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by rade, Aug 18, 2012.

  1. xcflyn

    xcflyn Long timer

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    :thumb I love it ! I would even be interested in a prototype !
  2. Night Shadow

    Night Shadow Adventurer

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    I hope these end up working good. I could see buying one in the future
  3. The Griz

    The Griz Long timer

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    I'm totally interested too! I would use it as a reserve. I'd fill the main tanks and under seat tank, and keep the under seat tank's petcock closed, mainly relying on the main tanks, and pretend that I don't have any more fuel than what is in the main tanks. If I get into a situation where I miscalculated and need to extra fuel I'd flip the petcock open and my ass will be saved.:clap
  4. srad600

    srad600 Been here awhile

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    Same as above Rade. Great work and very rapid prototyping. I'm stoked to see it turned out so well, and I'm very interested in the final product. :clap
  5. Pete640

    Pete640 Long timer

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    Im with you on this Mikael. Perfect if it doesnt rub the wheel - but that should be pretty hard with 320mm :deal
  6. evildingo

    evildingo On a road to no-where

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    So which one is mine , I'm not fussy ?
  7. Chop Chop

    Chop Chop Hector erector

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    Get in line Scotty:deal
  8. Gordonktm

    Gordonktm Been here awhile

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    [​IMG]

    G'Day Rade
    When I bent the sub frame I added these extra plates would your tank have clearance to get past these plates? There 3mm plate
  9. AirDale

    AirDale Adventurer

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    I had the same idea about doing something like this for the Super Enduro, but would have no idea how to go about executing it, any chance of doing this for the SE in the future?

    I know the battery and the fuse blocks would reduce capacity but it might still have substantial capacity. I was thinking that you could have the filler come out the back of the tail section and relocate the tail light below it.

    Just dreaming.
  10. keener

    keener Speed changes you.

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    What is this baby's capacity?!!
  11. rade

    rade Adventure enthusiast

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    3D model is saying 8 liters, but reality will we less, because of the air pockets. Next week I wil test it in reality - it will be game to find the best "air ventilation" - or how to say - in order to maximize the capacity...

    Now I go to discuss next steps with manufacturing compay and see them in person :-) More info tomorrow!
  12. rade

    rade Adventure enthusiast

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    Uf, not an easy english for me :-)
    If I got it correctly - there will be a clereance, but not sure if for your plates shape...

    I do think of doing carbon-kevlar 3 layers skin to the bottom of the tank - to protect it from abrasion.
  13. rade

    rade Adventure enthusiast

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    I have the first to prototypes in my hands and I am again a bit smarter:-)

    how it looks like:
    - the mould/form seems to be good - however 3 small optimizations will be done
    - tanks looks good - even when we cut it the walls are the same width - but we will make them a bit thinner (4mm)

    [​IMG]



    what next:
    • check - it fits in the subframe for 990 and 950 (w/o ABS models only) - during weekend
    • finalize mounting
    • finalize air ventilation -> it will significantly influence the final capacity
    • finalize the heat isolation from the pipes

    for discussion:
    - the filles has currently G 1 zoll/inch coil - manufacturer question if this is the best solution from usability point of view, problem is just a limited space between the seat lock and the fairing...
    - thinking of carbon-kevlar protection skin to avoid abrasion
    - TUV certification - it will pass for sure (as other tanks from my manufacturer) but it is quite costly and it would mean price increase by aprox. 100USD...
  14. Chop Chop

    Chop Chop Hector erector

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    Hi Rade, I can see a possible problem with fuel splash back triggering the pump nozzle with the location of the filler hole. I'm sure you testing will confirm if it is a problem though.

    For me, I couldn't care about TUV certification, but you carbon-kevlar protection skin idea has merit.
  15. rade

    rade Adventure enthusiast

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    I had the stainless steel piece first - very similar shape and it was not the case... As the filler hole is lower than the origo tanks filler, the venting has to be wired along the air box and end up next to the tripple clamps, than it works...
  16. Unruled

    Unruled 950S

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    Looks really good, going to keep an eye on this :clap
  17. DSM8

    DSM8 Where fun goes to die....

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    If you kept the thicker walls would that not allow for the exclusion of the additional abrasion protection of the carbon fiber and it additional cost?

    Could Al sheet on that side in its place be an easier and cheaper solution to the carbon fiber?

    Just wondering.

    :ear
  18. rade

    rade Adventure enthusiast

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    very good questions!
    - thicker walls means less capacity - 2mm less means half liter of capacity!
    - I have to find how expencive would be the mould to shape the Al sheet - I am afraid of the fixed costs
  19. srad600

    srad600 Been here awhile

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    Can they leave the mold thicker on the bottom and say, 1/4 of the way up the sides, then transition it to a thinner mold for the remainder of the sides and the top? That gives you the best of both worlds (thick bottom for abrasion resistance and thinner sides/top for additional capacity) without having to incorporate additional materials.
  20. gefr

    gefr Life is a trip

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    Is the tank interfering with the free movement of the wheel? or is it protection for stones flying from the wheel?