TB spacer

[maximus44]

Well I went through the trouble to look up stuff so I could add to the "Top 5mpg Mods" thread, and it was locked. Anyways, here's what I had to add.

I know this isn't the same as a TB spacer. But if this works for Yamaha's production bikes, then is it so hard to believe that a TB spacer might work in a similar way.
Note: I don't have a TB spacer and at this point I have no interest in getting one. Just trying to open up some more thought on the subject.

http://www.yamaha-motor.co.jp/global/news/2006/10/10/yzf-r1.html

Copied:
"YCC-I" (Yamaha Chip Controlled Intake)
This model adopts a newly designed liquid-cooled DOHC, in-line 4-cylinder, 4-valve/cylinder engine. It also adopts the "YCC-I" (Yamaha Chip Controlled Intake) electronic-control servo motor-driven variable air funnel (intake duct) system, which is the first of its kind in the world to be adopted on a production motorcycle. This system enables optimum performance in both the low- to mid-speed range and the high-speed range. The intake ducts (funnels) are each divided into upper and lower portions that in their normal connected position create a single funnel for fresh air intake. When engine rpm and throttle opening exceed a certain level the funnel parts separate in a way that only the shorter bottom part functions as the intake duct. This enables smooth torque development across the entire rpm range.

 

[Patton]

If I understand this correctly, this YCC-I reduces/eliminates losing your traction on acceleration?

 

[maximus44]

No, it allows variable air flow into the throttle bodies to provide a broader powerband. As opposed to just high rpm power or just low rpm power.
Kind of like when you put a high flow exhaust on your vehicle, it let's it breathe better for more higher rpm power. On some motorcycles they have an exhaust valve (usually a butterfly valve in the collector). It opens when at high rpm for more flow and semi-closes at low rpm for more low rpm power.