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Georg Kotzinger |
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Georg Kotzinger from Germany was running a pretty standard looking Associated B4.1 buggy - but we got a tip off about his unique gearbox which looks like nothing special from the outside.
Inside however - he's got something pretty strange going on. The differential is a geared diff that he's been running for the past three years and ABSOLUTELY won't give away it's internal secrets to us mere mortals.
The differential has the usual 'differential' action so one wheel will turn more around a corner but most of the time it locks or has a limited slip action. If the car lifts a wheel when going round a corner for instance, the car wont lose momentum and the wheel with the most grip (the one on the ground) will have full drive. Interesting - wish we could get to see inside! :(
Georg will run the Associated B44 in 4WD - nothing too exciting there. But Georg has mostly raced his super-cool RC10B4 4WD converted belt-driven buggy - which he's raced for the past few seasons. The reason he says he chose not to race the buggy at these championships is purely down to the rules which prohibit the changing of chassis - so if he breaks a part on his custom buggy he would have to machine / create new parts and can't just use common off the shelf parts like the B44 can.
The B4 4WD buggy maintains the rear-motor layout and even the gearbox is pretty much unchanged. The power is transferred via a small pulley on the layshaft where the bearing would usually sit (the bearing has been moved further inboard) and feeds the drive belt down to the front of the car where Georg has created his own one-way differential.
It's a very cool design which reminds us of the MIP creations from the 1980's and early 90's. |