Lainaus käyttäjältä: Cat - 13.11.13 - klo:16:49
Jos puhutaan -13 malleista, ja ajettavuus on kyseessä, niin itse näkisin kolme arvostelukohtaa:
1) Alusta
2) Moottori
3) Jarrut
olisko vielä jotain?
Näistä muodostuu ajettavuus
Eipä noista alustoista kovin helposti (nopealla etsinnällä) faktoja löydy. Lisäksi se ajettavuus/toiminta iskareissa vaikuttaa enemmän, kuin millit ja grammat.
Hieman sama moottorin osalta. Jarruista numeraalista eroa, että yamahassa 310 mm levyt ja kawassa 300 mm.
Jos nyt vielä laitetaan tuohon ajettavuuteen, niin ajoasento vaikuttaa myös. Eli penkki, jalkatapit, kliparit, kahvat, vivut, tankin muoto, aerodynamiikka katteista+pleksistä. Näihin ei ole meikällä kommentoitavaa.
Mutta jos Yamaha on numeraalisesti karvan verran parempi, niin kovalla luottamuksella itseensä sekä pyörään, voi Kawalla päästä paljon nopeammin radan ympäri.
edit1: Kawassa moottorin puristussuhde on 13.3:1, Yamahassa 13.1:1. Tällä saa muutaman hevosen lisää.
edit2: Ilmeisesti fly-by-wire on kaasu Yamahassa. Kawassa kai vielä perinteinen vaijeri? Toivottavasti meni oikein. Näin hienoa teknologiaa en ole näprännyt.
Tässä copy-paste -faktaa fly-by-wirestä vuodelta 2008:
"Yamaha Chip Controlled Throttle (YCC-T) system;
Perhaps one of the most ground-breaking features on the new R6 is its Yamaha Chip Controlled Throttle (YCC-T), which, like the fuel injection, has been developed from the winning technology used on our YZR-M race bike. Our engineers have made the decision to use this highly advanced new throttle control system on the R6 because it is ideally suited to the extremely wide operating range of the new short stroke engine, which is designed to rev right through to the red line zone of around 7,500 rpm.
The new YCC-T features an ECU with a CPU featuring around five times the capacity of the existing model's unit, and this massive processing power ensures that the new throttle delivers outstandingly smooth and highly responsive action. In particular, the
YCC-T system optimises the relationship between the engine speed, intake air flow and drive torque curve, to give a smooth and controlled power delivery for such a high revving, high performance engine.
When a conventional throttle is opened suddenly, the amount of fuel delivered to the cylinder head can be excessive, resulting in less efficient combustion processes and reduced performance. However, with the new YCC-T system, the ECU constantly processes data from various sensors - including air temperature, intake air pressure, atmospheric pressure, crank position, engine temperature, engine speed, throttle position and oxygen. The data from the ECU enables the YCC-T to control precisely the opening of the throttle valves to suit the prevailing operating conditions, and in doing so it ensures that the optimum fuel/air mix - and therefore higher performance - is delivered every time.
YCC-T has been developed specially by an independent Yamaha project team, and the character of the electronic throttle control has been determined by our test riders who have logged thousands of hours of development time. The result is a system which delivers smooth, linear, carburettor-like throttle response in the low to medium rpm ranges, with remarkable levels of power above 10,000 rpm."