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FJR Motorcycle Forums
Technical & Mechanical Problems
Simulated FJR vs C14 race
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<blockquote data-quote="UselessPickles" data-source="post: 920554" data-attributes="member: 3256"><p>There's lot's of interesting comparisons that could be made between the same bike and itself with various tweaks: different rider weight, difference between full and empty gas tank, launch at different RPMs, different amounts of time to shift gears, shift at redline in all gears compared to optimal shift points. On bikes with a chain drive, I can also experiment with different sprocket sizes.</p><p></p><p>Generating/graphing data for rider weights in increments of 20lbs would take a while, and the graph would probably be way too crowded. Looks like the average American male is ~190lbs. I'll weigh my riding gear tonight to come up with a number to represent total weight of an average male rider in full gear. Then I'll compare that with -20lbs (like a half tank of gas) and -40lbs (like an empty tank of gas). This should give a general idea of how much of an effect weight loss has on the FJR's performance.</p><p></p><p>Is there any other comparison that would be extremely enlightening?</p><p></p><p></p><p>I would need a torque chart from such a bike to answer that question. Conventional wisdom on this forum seems to indicate that a PCIII alone does not significantly improve full-throttle torque on the FJR, but instead smooths out the partial throttle areas. I have not seen a before/after dyno chart for a stock bike adding a PCIII, so I don't know how true that is.</p></blockquote><p></p>
[QUOTE="UselessPickles, post: 920554, member: 3256"] There's lot's of interesting comparisons that could be made between the same bike and itself with various tweaks: different rider weight, difference between full and empty gas tank, launch at different RPMs, different amounts of time to shift gears, shift at redline in all gears compared to optimal shift points. On bikes with a chain drive, I can also experiment with different sprocket sizes. Generating/graphing data for rider weights in increments of 20lbs would take a while, and the graph would probably be way too crowded. Looks like the average American male is ~190lbs. I'll weigh my riding gear tonight to come up with a number to represent total weight of an average male rider in full gear. Then I'll compare that with -20lbs (like a half tank of gas) and -40lbs (like an empty tank of gas). This should give a general idea of how much of an effect weight loss has on the FJR's performance. Is there any other comparison that would be extremely enlightening? I would need a torque chart from such a bike to answer that question. Conventional wisdom on this forum seems to indicate that a PCIII alone does not significantly improve full-throttle torque on the FJR, but instead smooths out the partial throttle areas. I have not seen a before/after dyno chart for a stock bike adding a PCIII, so I don't know how true that is. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Simulated FJR vs C14 race
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