I was thinking - I read a post the other day. The guy said after he installed his slip on pipe that his Top speed went from 140something to 150something. Now using your explination about rpm verses speed, (because of the geering) How is it posible that his top speed changed from just doing an exaust swap? Red line is Red line right?
WHat do ya think?
Arkangel77
99% of the time your overall top speed isn't limited by your top gear redline. The FZ-6 will not redline in 6th gear, which would produce the greatest speed. Long before it gets there, the wind resistance is to great for the power the bike is making. So if you create more power, you can overcome more wind resistance.
For instance: (these numbers are made up for the example but the principle applies)
Lets say it takes the energy of 85hp to make a specific bike push through the wind at 140mph. And 95hp to make the same bike go 160mph.
Also the bike's gearing makes it so in 4th gear this bike at 11,000rpm can spin the tire at 140mph, and at 13,000rpm will spin it at 160mph.
Say at 140mph in 4th gear your bike is running 11,000rpm and at 11,000rpm at WOT your bike makes 85hp to the wheel. You will be at your maximum speed. Because your power vs. wind resistance(and other friction) will be at an equilibrium.
Now lets say at 140mph in 4th gear your bike is running 11,000rpm and at 11,000 rpm at WOT your bike now makes over 85hp because you upgraded the engine or whatever. It still takes the same amount of energy, that we decided before was 85hp, to push your bike through the air. So, you're going 140 and your bike has more available hp, you will be able to go faster than 140 now until the resistance vs. available power is at equilibrium.
So now your bike makes 95hp at 13,000rpm and with it's gearing 13,000rpm in 4th is 160mph. Now you can go 160mph.
Soooo,
The short and simple is that their bike wasn't redlining when they reached their max speed, they just ran out of power. They made more power and could go faster.
Hope all of that made sense.
