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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
BHP measuring
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<blockquote data-quote="Albervin" data-source="post: 12283" data-attributes="member: 586"><p><strong>Power</strong></p><p></p><p>Brighter lights than me can give more detail but I believe the answer is Torque. A Vincent develops similar torque figures to my BMW R1100RT (but at lower rpm than the BMW). Given BHP is a figure derived from torque & rpm I have no doubt that those raised on 15,000 rpm Jap machines find it hard to comprehend a Vincent was/is capable of 120 mph. Some road going Vincents I know of have been dyno tested at well in excess of 60 bhp (at the rear wheel) so I am sure the original bikes were in the ball park of 55 bhp at the rear wheel. For day to day riding though, it is the torque you use as ultimate BHP only comes into play as you approach 5,500+ rpm.</p><p>My little Aprilia RS250 has a claimed max bhp of over 50 but that is at 11,000 rpm & below 6,000 it won't pull the skin off a rice pudding! It will pull close to 115 mph though!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="Albervin, post: 12283, member: 586"] [b]Power[/b] Brighter lights than me can give more detail but I believe the answer is Torque. A Vincent develops similar torque figures to my BMW R1100RT (but at lower rpm than the BMW). Given BHP is a figure derived from torque & rpm I have no doubt that those raised on 15,000 rpm Jap machines find it hard to comprehend a Vincent was/is capable of 120 mph. Some road going Vincents I know of have been dyno tested at well in excess of 60 bhp (at the rear wheel) so I am sure the original bikes were in the ball park of 55 bhp at the rear wheel. For day to day riding though, it is the torque you use as ultimate BHP only comes into play as you approach 5,500+ rpm. My little Aprilia RS250 has a claimed max bhp of over 50 but that is at 11,000 rpm & below 6,000 it won't pull the skin off a rice pudding! It will pull close to 115 mph though!;) [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
BHP measuring
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