ORIGINAL: nikonf8

These dyno numbers are only as good as the dyno operator here is part of an article I came across= The most important aspect to Dyno Tuning is the dyno operator! Finding a qualified dyno tuner is a lot harder than it would seem. Just because a dyno operator has been to the Dynojet school & can run both the dyno & the tuning link software it does not automatically make him capable of tuning any bike properly as each bike has its own nuances
There are so many little things that have to be accounted for, one of the main issues is engine temperature. With the current 3D mappings now on some bikes they respond drastically to temperature variations (especially Honda's with their auto enrichening ECU's that go super rich as the engine temp climbs) & if the dyno operator isn't making sure that he starts the consecutive runs giving sufficient time to get the engine back to the original temp of the baseline run then you can get extreme variances in horsepower up to 7-10 horsepower sometimes from as little as a 5 degree engine temperature change which can give you misleading tuning information if you are not watching for it (& that is just one example). People have asked for more in depth info on this subject so I'm going to add some more: Dyno testing in general can be very misleading & should only be used to show changes in power delivery on the same bike on the same dyno. Every dyno is different & will have different calibrations so you simply cannot compare dyno charts from two different dyno's & expect accurate results. In addition to the important & no so well known variables that I mentioned above such as the engine temp affecting the dyno results many other variables exist as well, Over-inflating your tires can yield higher numbers on the dyno and a well lubricated, properly adjusted chain will also insure better dyno results too. ====With that being said I myself do not care for the numbers game. Most bikes running the same equipment are going to produce about the same give or take a little. I never had mine dyno tuned but would have to say I would be in the 100 100 club. my bike runs great no hesitation no popping when I twist it it goes. My plugs come out looking perfect after 5000 miles. I just had a 10000 mile maintenance done on it and the tech who done it a former Harley tech with over nine years experience said that my plugs were perfect. I see no reason to waste the money on a dyno tune just to find out what I already know. I would think a good reason to get a bike on the dyno is if it is not running good. if your interested in numbers and want to shell out two to three hundred dollars that's for you to decide

ORIGINAL: Pain Killer

My bike's engine in stock form was weak. It dynoed at 59.32 hp & 76.81tq. After the following mods,
S.E.103" big bore kit
S.E. 204 cams
S.E. exposed air filter
PC III w/ rev. ext.
V&H staggered short shots
No headwork & stock TB
87.97hp & 104.11tq.
After I found a great tuner and two mods (Zippers exposed air filter & torque blocks) the bike now dynoe's at 98.80hp & 113.1tq. I feel at this time the bike's power is adequate. Depending on the riders skill I can smoke 600 sportbikes or at least run with them all day long. I think a very important factor to add is - my bike only carries a 140lb. jockey.