6 speed gearbox for the KZ J model

The toilet water goes in the opposite direction? So instead of going down it comes up? Yuk, what a mess! :laugh: :laugh: :laugh: :laugh: Ed

Thanks Ed - you gave me the best laugh this morning ( 9.50am here ) - I sat in front of the pooter ( computer ) cracking up with what you wrote.
As it is, us Aussies are upside down to you guys so its a buggar to keep the water ( and stuff.... ) going down the pipes like it should..... :silly: :laugh:
Oh well, Ed and Bob - if we can't find anything new to talk about on the old Kwakas we can crap on about dunnys ( toilets ) until we have something new, hey???!!!
'crap on', 'dunnys' 'pooters'..... gettit....
Wayne

Thats no knife. Now this is a knife!!!!

I think you really spend too much time out in the Arizona sun, Bob.....
Go inside and have a beer!!
Wayne

My guess is that so much of that cost is set up, I wonder how many units you would need to get the price down to half? no VAT for USA export but potentially hefty import duties.

The six speed 550 transmissions are very tough, used also in the later gpz600 and a few 750 conversions. Even if it fits, going from 75 hp to maybe double that would be testing it to destruction. I wonder where is the weak link and what part would fail?

Thanks for getting the conversation back on track, 'tyrell corp' ( take the hint Bob... :side: )

I dare say that it would be a lot of units - I am not 100% sure, but I think Nova make the 5 speed CR box that Kipkawa advertise at £1650 and he sells quite a few ( well, in context of selling to people doing up old Kwakas to race ) so maybe it would have to be quite a few, I would think.
Interesting what you wrote about the 550 boxes and using them in 750 conversions but the problem I have, mate, is that I am doing the 'J' up as a pure race bike, and our Forgotten Era Period 5 regulations allow for 1300cc and that is where I am going and I am expecting ( along with other 'expensive' bits ) to get over 200hp at the crank so I think the box will need to be strong!!!!!
And before you write back and say that 200hp isn't gonna happen, I can tell you that it IS possible, and has been done on a road race bike here, and NOT a drag bike either. And it should not be a 'hand grenade' either.

Last post for the day, I have to go out for a few hours and you States guys will be in bed by the time I get back, so tomorrow will get your answers, ok?
Cheers
Wayne

Wish I could help with the purchase of a 5 speed transmission but I think that price is just crazy for what you are getting. I hope you start a thread on your engine build. Pete

Some people do have a lot of money and that's nothing for them to spend that kind of money. If you have to buy five and need to give one away I will try it out. Best regards Pete

What about the low stressed componentns like the shift drum and selector forks taken from a 550 and modified if possible.

I've had a 550 and 1100 motor on the bench next to each other, for double the power the size is maybe only 20 percent fatter-a lot of this being the starter gear mounted on the side rather than the primary shaft as on the 550/650/750 variants.

The 550 mills are boringly reliable -described once as 'the toyota corrolla' of bikes. The only issue with the 550 boxes was a later redesign on the circlips preventing selecting two gears together-don't quote me on that but it came to me from the top mechanic at a kawasaki franchise.

I know Lawson had about 150 bhp, so if you are keen enough and your pockets are sufficiently deep it would be good to think 30 years later and another 300cc that might be improved upon.

I'd be interested in what the limiting factors are here, actually how much power would a 550 gear take...maybe this could be tested to destruction in a lab. Even if you had to replace every race, 550 engine internals are two a penny.

Keep it coming Wayne, love it when people take ideas to the limit.

edit: p.s. spoke to my mate who is a metallurgist regarding lab testing the yeild point on the shear stresses on a 550 gear -all he wanted to know was what happens if you pull the flush!

Pete
"give"???? "GIVE" - what is this 'GIVE' business Tonto....??!! I might have a bit of money behind me, but I am hardly going to 'give' away a item that cost me $5000+.
Hey, I am generous to myself with buying the Panigale R for my birthday, but that doesn't make THAT generous to other people!!!! LOL!!!
Yes. When I get everything overseas here and ready to start pulling the 'J' apart, I will be keeping a record of photos and stories - I have a few mates ( including Bob ( Dr Gamma )) on kz1000r forum who have asked me to do the same thing so I will just double up to do both.
Don't expect anything until after June 2015 when I go to UK to get most of the expensive bits though.
Cheers Pete
Wayne

Don't think I want to try an unproven 'theory' on a motor that will probably cost $25K,'tyrell corp'. Being a race bike, I want it to be reliable as my old A4 which did 5 seasons without doing anything but change the oil and filter!!! Remembering that our 'season' in Forgotten Era only amounts to 6 races meetings a year and they are all fairly short races at that. The A4 now is parked because the last time I changed the oil, it has a tooth attached to the magnetic plug and going by the funny way it started and run, I think it is a tooth that the cam chain runs on and its jumped a tooth and changed the timing.
It is a 987 and was always being thrashed unmercifully by my rider so when I decided the 987 needed fretting up, I though I might as well go the whole deal and try and beat the buggars we race against who all use 1000cc plus.
So I don't wanna have to pull the engine apart after every meeting - at the end of the season is close enough - need to to check the titanium conrods for stretch.
Trying to figure a way to peg the crank pins without welding so that taking the rods out doesn't mean chucking the crank because its all welded up.
What gets me is the Panigale R has titanium conrods and no where in the book does it talk of checking them for service life - yet Carillo say you have to keep an eye on them because they have a time-factor service life.
So once a year is enough for me - we are just a small team of 2 not 8 so having a ultra reliable bike that doesn't need checking every 2nd month is what I want..... and NEED!!!
And the other thing is the ratios on the 550 might not bbs what I want. It probably wouldn't suit the characteristics of the motor ( not knowing much about 550 gearboxes and ratios here I will add ).
Answer one thing, mate - your last line "what happens if you pull the flush" - your've lost me there......! Or is that the "toilet joke - important technical consideration"...?

Answer one thing, mate - your last line "what happens if you pull the flush" - your've lost me there......! Or is that the "toilet joke - important technical consideration"...?

Just clowning with you mate, my offbeat humour; starting with an apparently reasoned engineering analysis but ending on the childish lavatory jokes earlier in thread :laugh:

Could a modern 6 speed transmission or even just the gears from something like a GSXR1000 be made to fit? That sort of money buys a lot of machining. Good luck and keep us posted