| Author | Message | ||
     Drfudd |
http://spreadsheets.google.com/pub?key=piMa420IFsf gb2gr2Irt5fg This is a spreadsheet I created in my spare time because I'm an engineer and this is what I do in my spare time... Basically its a way to take certain data, Gear ratio, HP, Red line data, & wheel size data and put that through various calculations to come up with shift points, MPH and other things. on the second tab is data calculated for the 1125r. The boxes that are green are user variable data, all other numbers on the spreadsheet have a calculation behind it (some of its rounded). By this calculation the top speed of the 1125r is ~165 MPH and if everything goes right you may be able to reach 170. It also shows that the shift points are nicely spaced on the 1125r. Let me know what you guys think, questions comments or do I have too much time on my hands. NOTE: Definition of "shift point" if you Shift at your HP rating (9800 rpm) and what is the resultant RPM you will be at when you up shift. | ||
| Mhdjake |
That's awesome... But the rpm limit is 10500 | ||
| Cobralightning |
The RPM limit is right, Just click on the 1125R at the top of the page. Awsome tool! | ||
| Garrett2 |
redline and best place to shift are often two different points on stock bikes/cars/whatever. i htink him putting in the peak hp is the best, otherwise youre wasting time and slowing down | ||
| Drfudd |
It was a major judgment call where to put the shift point. I don't have any power plots so I can't tell how far it drops off above its HP rating but if its like most V-twins it drops significantly enough to not bother with revving the engine higher and risk damage to the engine. Most shift lights are programmed at the same spot to give the rider breathing room to react. | ||
| Pwillikers |
Very nice work. I'm an engineer also, Mechanical/Computer Engineer. I'm not sure what your first graph indicates? You choose a different shift point depending on which gear you're in? Why not hover around max HP? When I bought my cr the finance guy at the dealership asked, "Are you by chance an engineer or a programmer?" I thought, Geez is it that obvious? He went on "80% of the people buying the 1125 one or the other." |
