74 replies to this topic

[gaffersr53]

have you found out how a bike engine should sit? i had a mini hayabusa with the engine in the back from z cars, and the enigne was not mounted as up right as yours?

[miniblade81]

lol yeah i no a few people who enter the fastest wheelie comps had few pointers from them but also my father in law is head mechanic for a touring car team he thinks it be fine so im hoping so lol hit and miss really as fwd hayabusa i dont think its has bin done before

[Tupers]

I like you sprocket arrangement, am I right in thinking the small one at the bottom is a tensioner?

[miniblade81]

yeah man spot on and yes was a right pain to get in line and thats a polite why of putting it

[miniblade81]

to sell or not to sell well i went out to watch few friends out on there crossers saturday and i got thinking off getting rid of everything mini which amounts too a garage full almost but i did do gear linkage today so i have gears now

[Tupers]

Can't stand crossers, if you want a off road bike trials is the way to go.

[Turbo van]

As far as I know the float chambers on the carbs are ment to be level to get the correct fuel level

[R1mini]

As far as I know the float chambers on the carbs are ment to be level to get the correct fuel level

Hayabusa's are fuel injected

David

[1380roadmini]

fwd busa mini will b interesting.

[ginsters]

how do you make the diff and sproket can they be purchesed anywhere??

[lager.and.pretzels]

how do you make the diff and sproket can they be purchesed anywhere??

You take the diff out of the housing and make a new housing which locates the dif by the shear pins normally used for locating the ring gear. Then you fix that housing in such way that it can rotate freely on bearings. Then you bolt a sprocket to the housing and call it a day.

Taylor Race is one such manufacturer of differentials for open wheeled bike engine formula cars, but they're very pricey. You can go on their site and get a cut-away drawing of one of these differentials, which will answer all of your questions. Their differentials are extremely light, and thus grab prices well into the thousands of dollars.

I've been associated with a Formula SAE (Formula Student, in Europe) team, which has afforded me to witness these things first hand. I can tell you its not that difficult to come up with a design, but you'll want a CNC or at least a lathe and mill to do it well... Look up photographs of Formula SAE/Formula Student team's cars and you'll see tons of examples.

[ginsters]

Nice one,il take a looksy

[lager.and.pretzels]

http://www.taylor-ra...om/techsprt.cfm

Thats all of it. Good luck.

[miniblade81]

well bit of update i should have manifold build up this weekend

[miniblade81]

exhaust mock up



and yes i no its not fitied in head lol needs moving 2mm