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Twins Talk Discussion of Hinckley Triumph Twin related matters and topics.

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Old 03-17-2006   #1 (permalink)
RobbieKnobbie
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Has anyone seen the torque/HP curves for the various Bonneville twin motors? I'm considering the T100 and the Scrambler but I need to know how the actual output compares - not just peak numbers.

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Old 03-17-2006   #2 (permalink)
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When I had my '03 Speedmaster dyno'd, my peak torque was about 46.5 Ft-lbs at about 5 grand. I had a nasty spike where the a/f went ultra lean at around 3500, due to bad jetting on my part, but besides that, torque stayed between 40 and the peak for the entire range. When I dyno'd, the guy figured that I was probably running about a 17:1 A/F ratio, which is way lean; now that I've rejetted, and done a few ignition mods complements of Brent, I'd expect to be around the 48 to 50 Ft-lb range.
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Old 03-17-2006   #3 (permalink)
Thomson
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Also the 904cc torque curve would be very, very interesting...
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