Direct drive/reverse Busa

[Carlriddle]

Here's a link over at MBN that has some good reading and ideas.

http://www.minibuggy.net/forum/driveline/14080-reverse.html


And a link to the UK builders site.

http://www.drdracing.co.uk/Drive_Box.php

[Reidy02]

They also do a 4x4 busa powered buggy...

[Engineer]

Very Interesting! 

[Engineer]

And another!

[Hammerworks]

Whats up with the tube joint where the top down tube meets the mid tube?

[Engineer]

It is fixed in the other picture.  They must not quite have been done with it.


That rear engined deal is pretty sweet.  That would make a 4 seat busa rail very plausible.  Weight offset isn't great side to side, but I am sure if you put everything else on the other side it would work out. 

[Reidy02]

Hers the link to the pic of the 4x4 busa buggy.

http://www.spiesmetaalservice.nl/04_projecten/04_projecten.html

[fabr]

I'm gonna put in my 2 cents on this. The setup looks good to me but for what I see as a huge difference in the different types of cars it is being used on/in and the type stuff we do . Look at the tire sizes of the cars there  and what we do here in the dunes or desert. Not trying to be negative but IMO ,the setups would have a short life running in a 2 seater  of 1500 pounds + with the huge tires we run and the greatly different type of terrain we run on here. Now in a light weight single seater ya might have something there.

[Nutz4sand]

I do wonder how that sdrawkcab (backwards) Hayabusa setup would do in a superlight drag racer/ hill shooter for the dunes.

[fabr]

 I'll agree to that! I also see an oil line connected to the unit in some pics and not in others. There must be some kind of a heat issue it would seem. I'd prefer not to pump engine oil through yet another transmission adding even more heat for the cooling system to handle. If it's a supplemental system then there is the additional sump and pump to deal with. I see a really nice unit that likely works well in it's niche though.

[Engineer]

I think your right Fabr.  Their units probably don't see as much guff with less weight and smaller tires.  The same reason that their supercar transaxles wouldn't last a day in a high hp buggy application.

I do however like some of the ideas.

In a two seat car the rear engined busa could get you a very short wheelie monster.  Not my thing but it could be interesting.  Several people have floated 4 seat busa concepts but they always end up to long.  With the rear engine / gear drive / reverse rotation thing it would be very plausible.  Just need to add a diff.

Did you read about the reverse concept of replacing two of the gears in the busa transmission with sprockets and a chain in order to get reverse when that gear was selected?  I agree with Nutz that the Super high speed of the sprocket on the shaft when going forward could be an issue.  With needle bearings it may work.  Personally I would try replacing 6th instead of 1st and modifying the shift drum to make it be below 1st possibly....

[Carlriddle]

Did you see the one with twin Busa'? 

The debate was how most would not like to give up 1st for reverse.  But definitly some slick ideas overthere.

[Nutz4sand]

Aside from not enough traction for Twin Hayabusas....

With the twin Hayabusa I do wonder what would happen if the shifters got a lil crossed. Your hammering it BAd and you go for the next gear and ONE engine shifts to the next higher gear but the other does not and you (being you are hammering it bad in a race say) do not know it and STAND on the gas.......

The motor in the lower gear is gonna do some serious overrevving. Maybe fatal overrevving. 

[Engineer]

The gearbox for two busas was super slick.  I agree that shifting syncronization could be the downfall.

[Hammerworks]

"In a two seat car the rear engined busa could get you a very short wheelie monster."

The side view of the white car shows the engine being pretty far ahead of the rear wheel CL.It may not be too bad,unless you want that sort of thing of course.