oadamo
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| posted on 1/6/07 at 06:30 PM |
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prop donought
hi on my saxo track car that iam building ive got two props. one with a rubber donought and one without.do you have to use the one with the rubber
donought. would it brake something with out it.
and what are your options on a one peace prop with out a center bearing. can this be done. its only about 1 meter long
thanks adam
[Edited on 1/6/07 by oadamo]
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dnmalc
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| posted on 2/6/07 at 05:14 AM |
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Adam
I suspect most of us are building based upon sierra donors which also have a donut in the drive shaft but which we through away when we fit a reduced
length prop. So this should give you an answer.
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Catpuss
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| posted on 2/6/07 at 09:31 AM |
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The origial Sierra prop didn't have a rubber donought (see the Haynes book of Lies).
I suspect its more for smoother drive and less jarring thought the transmission.
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Mark Allanson
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| posted on 2/6/07 at 09:39 AM |
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I have heard that the donut is used as a flywheel to give smoother gear changes
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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oadamo
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| posted on 2/6/07 at 12:18 PM |
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quote:
Originally posted by Catpuss
The origial Sierra prop didn't have a rubber donought (see the Haynes book of Lies).
I suspect its more for smoother drive and less jarring thought the transmission.
the gearbox that ive just got was out of a sierra 1.8 and it had a donought on the prop just behind the gearbox.
adam
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goodall
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| posted on 2/6/07 at 12:25 PM |
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what is the diameter of the tubing your prop is made from. in all likely hood if its only a meter use a 1 part prop since your building a competition
car for racing. i know that the works rs2000's had a single part prop while the road going models had a 2 part prop, which would indicate that a
single part prop is better for competition cars. as for the rubber joint i'd personally rather use a uj especially in a high power/competition
car as they give a more direct response and therefore more driver intended control
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Bob C
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| posted on 2/6/07 at 06:14 PM |
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some interesting spellings of doughnut - maybe you think it will do nought....
The donuts are a tight fit in a locost tunnel but they do fit (I have one) and are a much cheaper (and arguably more effective) alternative to a TRT
prop.
Bob
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Catpuss
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| posted on 3/6/07 at 03:49 PM |
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quote:
Originally posted by oadamo
quote:
Originally posted by Catpuss
The origial Sierra prop didn't have a rubber donought (see the Haynes book of Lies).
I suspect its more for smoother drive and less jarring thought the transmission.
the gearbox that ive just got was out of a sierra 1.8 and it had a donought on the prop just behind the gearbox.
adam
Sorry yes, they changed later to a donought (I had one on my prop), but had a much simpler one originally.
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