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#291556 ZoomZoom (User) Fresh Boarder Posts: 78 Horse power 1 Year, 11 Months ago   How much horse power does a 2002 R* has? I am just interested, for no good reason,comparing HP of different bikes! MK   Logged     Beware of Quacks: www.Quackwatch.com   The administrator has disabled public write access. #291563 billd (User) Platinum Boarder Posts: 1107 Re:Horse power 1 Year, 11 Months ago   Around 52 HP See HP Graph "Please don't kill the messenger!"   Logged     Last Edit: 2010/06/24 11:33 By billd.   The administrator has disabled public write access. #291578 ZoomZoom (User) Fresh Boarder Posts: 78 Re:Horse power 1 Year, 11 Months ago   I want to improve my understanding of the relationship between horse power and cubic centimeters. A Yamaha FJR is only 1300 c.c while the R* is 1600 so how come their horse powers are so different. The FJR around 145 hp and R* at 55 hp or so. I am sure I am missing something huge here. MK   Logged     Beware of Quacks: www.Quackwatch.com   The administrator has disabled public write access. #291580 Marcus (User) Senior Boarder Posts: 204 Re:Horse power 1 Year, 11 Months ago   Horsepower is a calculation derived from factors such as torque and RPM. Torque is a true measured value. My Roadstar has about the same torque rating as my Suzuki Hayabusa(fastest sportbike on the planet). My Hayabusa topped out at about 190HP due to differences in gearing and RPM at any given speed. The 'busa redlines at a much higher RPM, 11,000. Engine SIZE really has no factor in this calculation with the exception of how they affect these two values. T = 5252 x HP --------- RPM HP = T x RPM --------- 5252 Here is some basic information on calculating "work." http://www.elec-toolbox.com/Formulas/Motor/mtrform.htm   Logged     Last Edit: 2010/06/24 12:49 By Marcus.   The administrator has disabled public write access. #291583 fishhead (User) Senior Boarder Posts: 316 Re:Horse power 1 Year, 11 Months ago   If your bike is white around 50 hp............ But if it's BLACK 150hp   Logged     [img size=150][/img]   The administrator has disabled public write access. #291585 Clifford (User) Platinum Boarder Posts: 1781 Re:Horse power 1 Year, 11 Months ago   ZoomZoom wrote: I want to improve my understanding of the relationship between horse power and cubic centimeters. A Yamaha FJR is only 1300 c.c while the R* is 1600 so how come their horse powers are so different. The FJR around 145 hp and R* at 55 hp or so. I am sure I am missing something huge here. MK The FJR has 4 small bore cylinders and turns at high RPM, while the R* has 2 big bore cylinders and turns at low RPM. If you were to turn the R* engine at 7,000 RPM you would have engine parts scattered to the 4 winds! If you try to cruise the FJR at 2000 RPM it probably won't get out of its own way! Clifford   Logged     The administrator has disabled public write access. #291588 Royal1MC (User) I may not be one, but I own one...... A STAR!!!!! Senior Boarder Posts: 267 Re:Horse power 1 Year, 11 Months ago   fishhead wrote: If your bike is white around 50 hp............ But if it's BLACK 150hp Yes,sir....hahaha   Logged     2002 Midnight Star 1980 Kawasaki Z1-R   The administrator has disabled public write access. #291589 JVRoadie (User) Fresh Boarder Posts: 41 Re:Horse power 1 Year, 11 Months ago   151 if you have flames.   Logged     The administrator has disabled public write access. #291619 johna (User) Junior Boarder Posts: 103 Re:Horse power 1 Year, 11 Months ago   thats not right .white has far less wind resistance.   Logged     The administrator has disabled public write access. #291632 rick8mitch (User) Expert Boarder Posts: 537 Re:Horse power 1 Year, 11 Months ago   I have an 03.. with stage 3 pipes....ported manifold..S&S air cleaner....irridum plugs it was just on a dyno 2 weeks ago...and it read 67 horse power i added chrome levers and chrome lower dash extensions since then....as we all tell our wives chrome makes it run better rick   Logged     The administrator has disabled public write access.

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