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Motobox Gills

35 posts · Started by TheJoker · 05 Mar 2010

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Post 1 by TheJoker,

#1
Guys,

I remember reading that the tank-shrouds impaired the airflow to the engine when you have the Motohooligan Motobox airbox fitted. I've attempted to cure this issue by cutting "gills" into the tank shrouds.

Sadly I didn't take a "before" picture of the right hand side one.

You can see the Motobox filter a bit when you've got the shrouds removed.
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When the shroud is fitted you can't see the filter at all.
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With a bit of time with the Dremel I cut a hole this funny shape
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On the other side it turned out like this.
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This isn't any proven method or anything like that. I just thought that I'd start a thread and post up what I've done. Inviting others to post pictures of any shroud-mods done.

Oh, and I washed the bike today, it's not that dirty anymore!

Post 2 by ...BUZZ...,

#2
you could of fitted these instead of cutting you tank shroud........good job none the less



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Post 3 by Colonel_Klinck,

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Post 4 by bic_bicknell,

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Post 5 by TheJoker,

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Post 6 by TheJoker,

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Post 7 by ...BUZZ...,

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Post 8 by TheJoker,

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Post 9 by ...BUZZ...,

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Post 10 by Colonel_Klinck,

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Post 11 by TheJoker,

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Post 12 by ...BUZZ...,

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Post 13 by Colonel_Klinck,

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Post 14 by Colonel_Klinck,

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Post 15 by bic_bicknell,

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Post 16 by Colonel_Klinck,

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Post 17 by ...BUZZ...,

#17
im typing not talking and spud is a legend....lol

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Post 18 by TheJoker,

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Post 19 by Zenbiker,

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Post 20 by Joely Boy,

#20
Howdy Joker, I think this might be the thread you were talking about..

http://www.superduke.net/forum/viewtopi ... yone+tried

My shrouds are still out and haven't had any problems what so ever, admittedly I don't tend to ride in pouring rain if I can help it but have been caught out with no adverse results from water. The way I figure, if the small part at the front of the filter gets a bit wet its still got about 75% of the filter left dry to suck through anyhow. I have also removed the crankcase breather and plumbed it into a small filter canister on mine.

Post 21 by TheJoker,

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Post 22 by harvester,

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Post 23 by Joely Boy,

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Post 24 by Motohooligan,

#24
[quote="oldmancud"]I too have removed the crankcase breather hose from going into the Motobox and routed the hose into a K&N 62-1010 crankcase filter on a SDR. Amazingly, I also remembered to plug up the inlet on the Motobox.

No sense venting that toxic oily mist into the pristine inlet tract when it can be dumped into the atmosphere and get global warming back on track.


Amen to that my brother!!

Post 25 by TheJoker,

#25
Thanks Motohooligan.

This all points at that most of the OE aribox's task is to act as a noise insulator/damper.

Either way, this thread is about how to make extra air available through the front tank shrouds. I believe we can discuss airboxes, Motoboxes and such somewhere else. Thank you!

Post 26 by Motohooligan,

#26
Agreed.... Cold air induction is what this is all about. I have been wanting to do a little research on this myself and its on my to-do list. I would like to fab up some shrouds and ducting to allow the cold air but minimize water infiltration.

Post 27 by TheJoker,

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Post 28 by SDtaxi,

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Post 29 by bic_bicknell,

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Post 30 by TheJoker,

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Post 31 by SDtaxi,

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Post 32 by TheJoker,

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Post 33 by the-bunker,

#33
or just take the shrouds off and see how it goes?

Post 34 by indy84,

#34
which I have done. Haven't done a speed run but seems to sucks a bit louder.

Post 35 by indy84,

#35
I cant see the extra turbulence helping things one bit better that it breathes still air
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