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 Post subject: 6 speed box
PostPosted: Sat Aug 14, 2010 11:51 pm 
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1098cc
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Joined: Mon Feb 12, 2007 2:40 pm
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Location: wasleys S.A.
this is some pics of the basic set-up of the 6 speed squential shift gear set in a mini case
Image
1st gear is on the left of pic. it is quite a bit bigger than std mini.
Image
the end is milled to a depth of 25mm from the original face and a hole opened up for the shift drum to fit in. the main shaft is fitted into original bearing holes. a new 25mm plate with bearing holes is bored to suit shaft center dist and is then welded into position.
Image
just a little of clearance with 1st gear, but piece welded over to blend into case
Image
the bike mainshaft with spline ground onto the end to take mini pinion
Image
plenty of room underneath main shaft for the new oil pick up position
Image
the selector drum sits roughly in this position.
the reverse gear is mounted to the main and input shafts and is engaged by a sliding idler gear

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 Post subject:
PostPosted: Sat Aug 14, 2010 11:58 pm 
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1098cc
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Joined: Sun Mar 29, 2009 10:46 pm
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Location: Outback Mini Man
what are those gear sets out of, or have they been machined to suit.

what kind of cost to build something like this 10K plus.

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 Post subject:
PostPosted: Sun Aug 15, 2010 12:05 am 
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1098cc
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Location: wasleys S.A.
Drexxle wrote:
what are those gear sets out of, or have they been machined to suit.

what kind of cost to build something like this 10K plus.


the gear set is a std honda cbr 1100 RR bike. 1st is 2.75:1 and 6th is 1.1:1
the honda vfr 800 [and the new 1200 bike] run the same shafts and center dist etc. the gears are inter-changable but they are 1st 2.89:1 and 6th is .89:1 better for a road car

price????????????????? probably about 1/3 of what you reckon. do not know at this stage until it is all finished

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 Post subject:
PostPosted: Sun Aug 15, 2010 12:29 am 
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1098cc
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Location: Outback Mini Man
my other question is how many hours.

racking yer brain trying to make it work in your head

working those machines to get it to work in your car

and must say, suitably impressed, and keen/intrigued to see/hear it running.

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 Post subject:
PostPosted: Sun Aug 15, 2010 9:50 am 
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Location: Brisbane
GO FOR IT DAVID

:-)

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 Post subject:
PostPosted: Sun Aug 15, 2010 10:06 am 
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1275cc
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and is the 6th gear make the mini a lot quieter?? ie 3000rpm at 100km-h?

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 Post subject:
PostPosted: Sun Aug 15, 2010 10:08 am 
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1275cc
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and what sort of power can it handle? I was thinking of a 5 speed box, but this could be quite exciting. would it handle a Downton 1310cc with stage 3 head and twin 1.5" Sus??

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 Post subject:
PostPosted: Sun Aug 15, 2010 10:54 am 
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Location: macquarie fields NSW
shotgun for the prototype! :lol:

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 Post subject:
PostPosted: Sun Aug 15, 2010 11:43 am 
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Interested... Looks great. :)

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 Post subject:
PostPosted: Sun Aug 15, 2010 12:19 pm 
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Location: Wodonga - Vic/NSW border
I see why you're not going to make one for anyone other than yourself... complex bit of gear

I love the way shift drums work, beautifully simple


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 Post subject:
PostPosted: Sun Aug 15, 2010 12:24 pm 
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brett wrote:
and what sort of power can it handle?


Considering what the gear set came from, anything any A series could put out.

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 Post subject:
PostPosted: Sun Aug 15, 2010 12:44 pm 
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1275cc
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Awesome work, as usual. 8)

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 Post subject:
PostPosted: Sun Aug 15, 2010 7:31 pm 
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1275cc
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Location: Yandina,Sunshine Coast,QLD
Rod or remote change box?
And how is the new gears selected, is it through a std positioned gear stick or is it flappy paddle or what?

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 Post subject:
PostPosted: Sun Aug 15, 2010 8:10 pm 
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1360cc
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Joined: Mon Aug 23, 2004 10:07 pm
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Location: SE Melbourne
Surely it'd be a sequential stick.

It's the closes to the bike's foot peg arrangement.


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 Post subject:
PostPosted: Sun Aug 15, 2010 9:22 pm 
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1098cc
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brett wrote:
and is the 6th gear make the mini a lot quieter?? ie 3000rpm at 100km-h?


that is sooo awesome!!!!

the gears are straight cut?? i would think it's going to defeat the point anyways.

good for a race car though kick ass!


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