Z750S vs. 600cc SS - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 15 (permalink) Old 10-06-2005, 04:44 PM Thread Starter
 
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Z750S vs. 600cc SS

How come the Z750S has a bigger engine but is slightly lower in peak hp than, say, a 600cc supersport like the 2005 Ninja ZX-6R? Is there more torque and more power down low than a 600cc?
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post #2 of 15 (permalink) Old 10-06-2005, 05:14 PM
 
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Its becuase its a sport tourning bike. Yes there is proably going to be more tq. lower down for eaiser riding.
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post #3 of 15 (permalink) Old 10-06-2005, 07:04 PM
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when the z750 came out....they ranted about how it was smooth. they also compared it to the SV650, fzr600, and the hornet, so thats the class its in. remember, an SS is going to be much more twitchy, and have more power up HIGH in the rpm range, but the z750 will be smoother, but it wont feel weak by any means
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post #4 of 15 (permalink) Old 10-07-2005, 04:44 AM
 
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Exactly what everyone else is saying. You wont have to shift as much to stay in the powerband and there wont be such an abrupt jump in power once you hit the the powerband.
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post #5 of 15 (permalink) Old 10-07-2005, 06:55 PM Thread Starter
 
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Okay, I was just curious whether a 600 would pull harder all the way through, or just have a higher bump in power like you said. I do notice a pretty strong surge at 7000 RPM, enough that I have to let off a couple seconds. What's the surge on a 600 feel like?
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post #6 of 15 (permalink) Old 10-07-2005, 07:49 PM
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It feels like, "damn, I should have been in a lower gear to have the front floating." You don't have any time to catch your breath, but rather enjoy the moment and watch for obstacles. When you're about 9K, the bike should be pointed at a desire direction, because by 10-11K, it's already there before you hit the brake to avoid triple digit speeds, and there's still a few more thousands of rpms left before it hits the peak hp.
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post #7 of 15 (permalink) Old 10-07-2005, 07:53 PM
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+1

Nicely put, makes me wanna go hit screamin rpm's.

Guess I should change my name, not a poser anymore.
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post #8 of 15 (permalink) Old 10-07-2005, 08:53 PM Thread Starter
 
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Even on my Z (and surely with a supersport) though, I'm scared to wind it all the way up in first, and if I do it in second, I'm going a lot faster than I want to be depending on the road. Redline in second gear would be near triple digits, right..?
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post #9 of 15 (permalink) Old 10-08-2005, 12:13 AM
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Re: Z750S vs. 600cc SS

Quote:
Originally posted by ESanders2
How come the Z750S has a bigger engine but is slightly lower in peak hp than, say, a 600cc supersport like the 2005 Ninja ZX-6R? Is there more torque and more power down low than a 600cc?
its because the motor of the Z750 and the z1000 have different cam profiles then the supersport version of the same motor. My bike displaces 953cc, it is a zx9 motor with a larger bore. The exhaust cam doesn't have as long a duration as the zx 9 motor.
the zx9 displaces 899 cc and it make exactily the same horse power output as the z1000, however the z1000 makes peak torque 1000 rpm earlier. It is possible for you to get more peak power from the z750, but if you're going to go through the trouble of changing out cams and such you might as well just buy the supersport.

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post #10 of 15 (permalink) Old 10-08-2005, 04:41 AM
 
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Quote:
Originally posted by ESanders2
Redline in second gear would be near triple digits, right..?
Let me see, I think this is about right. on my 6 Redline in first is at like 60MPH. 2nd at like 120MPH. However as you get into higher gears they get a bit shorter. I have not had the chance to Redline 3rd and and acutally look at the speedo.
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