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Thread: airbox mod

  1. #21
    Superbike Twin MonkeyDog's Avatar
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    Top Job Sabre.. looks mint

  2. #22
    One Liter Duc Eater Sabre's Avatar
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    Quote Originally Posted by johnr View Post
    Hi sabre

    thats a good idea about the tufnol, how did you think of using that ?
    Cant remember where the Idea came from other than it was suggested to my by someone else.

    Its cheap and you work it like a peice of wood so its easy to shape and drill.
    looky

  3. #23
    AMA Pit Boss supertedlover's Avatar
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    makes my efforts look distinctly amateur but hey ho.

  4. #24
    One Liter Duc Eater Sabre's Avatar
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    Talking

    Quote Originally Posted by supertedlover View Post
    makes my efforts look distinctly amateur but hey ho.
    Post a piccy

  5. #25
    AMA Pit Boss supertedlover's Avatar
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  6. #26
    One Liter Duc Eater Sabre's Avatar
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    OK. Moving on..........

  7. #27
    Baby Twin Stickmeister's Avatar
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    [/QUOTE

    Nice looking setup.....

  8. #28
    dangleebals
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    Hey Sabre, you've tried both haven't you? i.e. renegade type and evo type.

    which do you think gave the most noticable difference to percieved power increase?

  9. #29
    AMA Pit Boss supertedlover's Avatar
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    Quote Originally Posted by Sabre View Post
    OK. Moving on..........
    Will get some of the base plate i knocked up mate, no worries, get your laughing gear ready

  10. #30
    Baby Twin majorjam's Avatar
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    How does it seal to the tank?

  11. #31
    AMA Pit Boss supertedlover's Avatar
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    Doesnt seal mate, why would you want it too?

  12. #32
    Baby Twin majorjam's Avatar
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    if it does not seal to tank you will loose ram air ( which boosts bhp by around 5% at speed)

  13. #33
    AMA Pit Boss supertedlover's Avatar
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    But you are allowing more air into the cavity by removing the box, you still get the ram air as the boot is still there just its not directly onto the filter

  14. #34
    AMA Pit Boss Sprocker's Avatar
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    STL...What do you mean by your signature that we lost milleboy

  15. #35
    One Liter Duc Eater Sabre's Avatar
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    Quote Originally Posted by dangleebals View Post
    Hey Sabre, you've tried both haven't you? i.e. renegade type and evo type.

    which do you think gave the most noticable difference to percieved power increase?
    First up. Both are a great improvement over the Standard bread bin. They allow the engine to breath a lot easier - like how you feel when you shake off a cold!

    TheRene copy gives more mid range boost with the EVO seeming to give more at the top of the revs.

    They both sound GLORIOUS.

    The Rene copy I found too noisy after a while so I made my EVO copy with a Halfords Camping Mat.

    There is no RAM air effect on the Mille. I e3ven considered making the base plate just to support the Filters on the Rene copy and doing away with the air boot altogether. It wass only the thought of all the road crap spraying over the TB linkages which stopped me.

    Hope this helps.

  16. #36
    AMA Pit Boss supertedlover's Avatar
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    Quote Originally Posted by sprocker View Post
    STL...What do you mean by your signature that we lost milleboy

    Dont know where he is, not heard from him for ages, guess he is planning his trip and working like a super trooper, pretty sure he goes in new year, i will pm him and see what he`s up to.


    That clears it up a beaut mate, i second the noise, man the rene is soooo loud i love it, will take some piccys soon

  17. #37
    Baby Twin
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    Originally Posted by Sabre
    Hi John

    Ive just been reading your post on the air box mod.

    What difference did it make to the bike?


    regards

    Stu
    johnr is online now Forward Message

    I`ll post a drawing of the plate if anyone wants to make one

  18. #38
    Baby Twin majorjam's Avatar
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    the rsv is supposed to have one of the better ram air systems, (although not hi pressure like a turbo) but the air box does get pressurised by ram air, many mods actually do increase static power at the expense of hi speed power, its one of the problems with dyno's because they can't replicate moving through the air at 70mph (not with fans anyway)

  19. #39
    Badger
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    Quote Originally Posted by majorjam View Post
    the rsv is supposed to have one of the better ram air systems, (although not hi pressure like a turbo) but the air box does get pressurised by ram air, many mods actually do increase static power at the expense of hi speed power, its one of the problems with dyno's because they can't replicate moving through the air at 70mph (not with fans anyway)

    I have stayed out of this so far as i feel it is up to an individual to make their own choices which route to take for modding their airbox, i am of the same opinion as majorjam, my reasons being

    1 If you take away the airbox you have lost the ram air effect as it is lost due to having no actual airbox to give you pressure, the pressure in the airbox means the air can be drawn quicker into the motor as it is pressurised.

    2 If you have cooler denser air this will also give better performance, the enclosed airbox mod means you are not allowing the motor to draw hot air from around the motor, this warm air will not be as dense as it has dried out due to heat, hot dry air is power sapping, go out on your bike on a chilly day and you will notice it runs crisper and picks up quicker, this is the cool air with moisture content.

    3 The faster your speed the more air you are forcing into the sealed airbox which in turn is giving you forced induction, meaning more air and more fuel going into the motor quicker, thus giving more power.

    4 This one is my own preference, the sealed mod is not as noisy, i prefer to hear the note of the exhaust than have it drowned out by the airbox.

    Personally i do not see any cons with the Rene type method at all apart from the noise of the induction roar if that is what the rider wants, the first three are the reasons i believe make the sealed unit a better prospect.

    This is not a post to upset any of you guys that have made an airbox mod recently, but i thought it was better to point out some valid reasons for going the sealed route.

    Now, i just hope that Sabre's face has not turned the colour of his bike

    Open for discussion now

  20. #40
    AMA Pit Boss Sprocker's Avatar
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    Badger are you saying that Sabres halfords EVO copy is better than the Renegades then

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