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Old 04-25-2008, 01:35 PM   #1
Switchblade
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Anybody know....

I was wondering if any body knew anything or had heard something about a turbine cam or a powerband cam. I was told that when you get up to about 8 grand the bike just ramps up or you really feel it pull hard.I guess it acts like what v-tec does.

If their is a such thing than can someone pm me some info on it.
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Old 04-25-2008, 03:06 PM   #2
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Quote:
Originally Posted by Switchblade View Post
I was wondering if any body knew anything or had heard something about a turbine cam or a powerband cam. I was told that when you get up to about 8 grand the bike just ramps up or you really feel it pull hard.I guess it acts like what v-tec does.

If their is a such thing than can someone pm me some info on it.
Gimmick.

Now, there are some custom grind cams that will put power in different places in the rev range, but it sounds like someone is BS'ing you.

BTW, most motorcycles, especially 4 cylinder engine bikes, will "pull hard" at about 8 grand or higher.

Sounds like someone wants you to go get some new muffler bearings... or tighten the power bands... or get some high speed bumper bolts...
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Old 04-25-2008, 03:53 PM   #3
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HEY! Those high speed bumper bolts work!!!
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Old 04-26-2008, 12:03 AM   #4
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The 07-08 have a variable throttle body or YCC-T.

The fly by wire Yamaha Chip Control Throttle (YCCT) pioneered on the 2006 YZF-R6 makes its mark on the 2007 YZF-R1 but the main point of interest is the new throttle body funnels. Engine tuners have long known the association between intake port and runner length helps determine exactly where in the rpm range the best power and torque are produced. Traditional throttle body design always has to arrive at a compromise with either some top end traded for better mid-range torque or vice-versa. On the 2007 R1 however those smart humans at Yamaha HQ have come up with a solution that provides not just the best of both worlds but essentially limitless variations in between. The innovative solution employed by Yamaha’s engineers has been seen before in Formula One and exotic supercars but never on a mass produced motorcycle that sells for similar money as a Hyundai! The throttle funnels on the new R1 actually grow and shrink by 75mm in response to electronic cues received from the sophisticated engine management system to provide the exact length required for optimum intake velocity at all throttle openings
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Old 04-26-2008, 12:08 AM   #5
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Quote:
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you guys forgot the blinker fluid it... never forget about the blinker fluid
make sure you change it every 3k miles too.
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