Greetings knowledgeable ones; can anyone tell me what balance factor was originally used by Ariel on the 500cc Red Hunter crankshaft?
Alternatively, any thoughts re what balance factor would be best for this engine to be used for sprinting?
Thanks, Dave.
Balance factor
- paul.jameson
- Holder of a Golden Anorak
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Re: Balance factor
The balance factor varies depending on whether you are using a rigid/plunger frame or a swinging arm frame. But sprinting doesn't take very long so I would have thought there is little chance of vibration from the engine shaking the fillings out of your teeth!
Paul Jameson
35 LG (project), 37 RH500, 52 ex ISDT KHA, 54 KH(A), 75 Healey 1000/4.
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist (but not Machine Registrar), Gauges and Clocks Spares Organiser.
35 LG (project), 37 RH500, 52 ex ISDT KHA, 54 KH(A), 75 Healey 1000/4.
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist (but not Machine Registrar), Gauges and Clocks Spares Organiser.
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- Holder of a Golden Anorak
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Re: Balance factor
A Forum search will find quite a few refs to VH balance factors.
65% gets a lot of mentions (seems to be what the factory used).
David Anderson (who has done a lot of work on Ariel singles) prefer to use 66.66%.
viewtopic.php?p=84714
viewtopic.php?p=70777
viewtopic.php?p=55527
viewtopic.php?p=49603
viewtopic.php?f=4&t=6470&start=20#p42886
viewtopic.php?p=5136
SG
65% gets a lot of mentions (seems to be what the factory used).
David Anderson (who has done a lot of work on Ariel singles) prefer to use 66.66%.
viewtopic.php?p=84714
viewtopic.php?p=70777
viewtopic.php?p=55527
viewtopic.php?p=49603
viewtopic.php?f=4&t=6470&start=20#p42886
viewtopic.php?p=5136
SG
Web admin (webmaster@arielownersmcc.com)
'55 Huntmaster, '56 VH, ' 51 VH, '62 Arrow, '80 R100RT, '00 Sprint ST (now with a new Arrow project, and just now those 4-stroke Ariel parts can't even make one running bike...)
'55 Huntmaster, '56 VH, ' 51 VH, '62 Arrow, '80 R100RT, '00 Sprint ST (now with a new Arrow project, and just now those 4-stroke Ariel parts can't even make one running bike...)
Re: Balance factor
Many thanks for that info, 65-66% would at least seem to be a good starting point on the understanding that lots of other factors come into play.
Dave S
Dave S
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