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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Who's Vincent/Hrd has the most power?
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<blockquote data-quote="Monkeypants" data-source="post: 44495" data-attributes="member: 2708"><p>Somewhere I saw Steve talking about that engine, (maybe a Youtube Vid? ). As I recall he was commenting about the need to feed throttle to it gently, maybe result of all the port work and big carbs etc. No exactly what one wants when it's time to blast by a line of cars, but the engine makes huge power. On the Norton site, racer Doug Macrae posted up a dyno graph of one of his early Herb Becker tuned Commandos, superimposed over the same engine stock. Herb has built some really strong engines that have won at Daytona. This one made about 70RWHP vs 52 for the stock engine. it also had a big hole in the powerband right in the 3500- 4500 rpm range, which is where a standard roadgoing Commando spends about 98% of its life. The stock engine has a nice hump in the powerband at this location and would provide far more power for roaduse than the race engine. I guess that is why when I get off the 160 hp Triumph and onto the stock 850 Commando , the Commando still feels strong.</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 44495, member: 2708"] Somewhere I saw Steve talking about that engine, (maybe a Youtube Vid? ). As I recall he was commenting about the need to feed throttle to it gently, maybe result of all the port work and big carbs etc. No exactly what one wants when it's time to blast by a line of cars, but the engine makes huge power. On the Norton site, racer Doug Macrae posted up a dyno graph of one of his early Herb Becker tuned Commandos, superimposed over the same engine stock. Herb has built some really strong engines that have won at Daytona. This one made about 70RWHP vs 52 for the stock engine. it also had a big hole in the powerband right in the 3500- 4500 rpm range, which is where a standard roadgoing Commando spends about 98% of its life. The stock engine has a nice hump in the powerband at this location and would provide far more power for roaduse than the race engine. I guess that is why when I get off the 160 hp Triumph and onto the stock 850 Commando , the Commando still feels strong. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Who's Vincent/Hrd has the most power?
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