tilly819
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| posted on 23/8/10 at 08:15 AM |
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prop length / angle for bike engine car
hi all,
has been quite a wile since iv been on the forum, but i was having a little think last night after comeing home from a little drive over to mallery
park yeaterday to watch the VSCC racing and i was wonding is there any reason.... if you got a bike engine gearbox output dead inline with the diff
input flange you could not use a 1 peice prop, the only thought that pops into my head is that it would be very long... is there for example a max
distance between suports on a prop shaft?
chears tilly
F20C Haynes roadster 440 BHP/Tonne www.youtube.com/handmadeextreme
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adithorp
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| posted on 23/8/10 at 09:32 AM |
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Most BEC's use a TRT prop'. This is basically two tubes, one inside the other, bonded together with rubber in order to damp vibration.
It's usually in one end of a 2 peice prop'. I'd guess they don't do full length prop's like that either because of the
weight or cost.
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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JoelP
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| posted on 23/8/10 at 09:00 PM |
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the extra length would make vibrations exponentially worse, so you would need a much bigger shaft if it was in one piece. 
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tilly819
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| posted on 24/8/10 at 10:37 AM |
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^^^
thanks very much to be honest thats basicly what i was expecting
chears tilly
F20C Haynes roadster 440 BHP/Tonne www.youtube.com/handmadeextreme
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