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Why the BSA style crank on 4stroke twins?
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<blockquote data-quote="Sinkingfast" data-source="post: 429779" data-attributes="member: 15306"><p>Thanx for the read! I was thinking of the Harley Davidsons that were used for dirt track. I guess one would time one cyl to fire right after the other with a space before the next fire to let the rear wheel rebite into the ground. Probably different for props.</p><p></p><p>My 9.9/15 suffers from the unequal intake tract length at low speed just like the single carbed v's.</p><p></p><p>Tonight when I can't sleep I'll run both crank styles in my head. Maybe I can figure how crankpin placement will influence torque.</p><p></p><p></p><p>Edit...Okay reread and i get it now..Thanx.</p></blockquote><p></p>
[QUOTE="Sinkingfast, post: 429779, member: 15306"] Thanx for the read! I was thinking of the Harley Davidsons that were used for dirt track. I guess one would time one cyl to fire right after the other with a space before the next fire to let the rear wheel rebite into the ground. Probably different for props. My 9.9/15 suffers from the unequal intake tract length at low speed just like the single carbed v's. Tonight when I can't sleep I'll run both crank styles in my head. Maybe I can figure how crankpin placement will influence torque. Edit...Okay reread and i get it now..Thanx. [/QUOTE]
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Why the BSA style crank on 4stroke twins?
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