woodsy144
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| posted on 19/4/11 at 03:31 AM |
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BEC Engine Placement & Drive Shaft Angle
Hello All, I am planning on building a 'busa' powered clubman. I am working on a solidworks model at the moment.
I am curious to find out about engine placement and drive shaft angle - and how it impinges on drives leg room.
If people have pictures of the layouts and could tell me more about the issues involved it would be greatly appreciated.
Thanks
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robby
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| posted on 19/4/11 at 09:53 AM |
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dunno the exact answer your looking for, but i put a gsxr 1100 in my locost.
i pulled it back into the passenger footwell, about 300mm - flush wi the front edge of the scuttle - and hard over to the chassis rails, with home
made exhaust headers outside frame. that got the prop inside the original tunnel dimensions. (but still to one side!)
as long as output shaft and flange of diff are plumb / square, it doesn't need to be in a straight line.
robby
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woodsy144
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| posted on 19/4/11 at 11:30 PM |
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I am curious to find out how people have orentiated their engines and prop shaft is probably the better them. EG split prop shaft with centre bearing,
where and how is that mounted etc.
I would really like to see build pics to see how people have done this.
Also, max angle for the prop shaft and what sort of loss's are experienced through the angle change.
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robby
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| posted on 20/4/11 at 09:01 PM |
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i used a shortened sierra prop, using the ford centre bearing, mounted on the side of the tunnel, up near engine.
angle probably not about 5 degrees off straight, no idea on power loss?
sorry, poo wi camera / computer, doubt if i could get pics on here...
best if you can find someone near you wi a busa that you can get a look at?
robby
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feckn7
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| posted on 22/4/11 at 10:43 AM |
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Correct me if I'm wrong, but do the flanges only have to be parallel if you're using UJ's?
UJ's are not constant velocity joints, which is why they are at 90° to each other on a drive shaft.
If you used CV joints (like Audi Quattros and some 4WD's do) then surely it wouldn't make any difference if the flanges were not
parallel.
David
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robby
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| posted on 25/4/11 at 01:45 PM |
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dunno david, i used original "hardy spicer" joints...
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