Monday, September 17, 2012

ketahui top speed motormu

Bagi para biker muda pastinya menyukai jarum dalam spidometer menyentuh red line, seberapa nyali,  ataupun kekuatan mesin motormu. siapa yang tidak pernah ngebut? tak terkecuali MB. agar tidak malu menghadapi lawan ketahui dulu top speed motor kamu lewat teori berikut ini. bila kemampuan motor tidak sampai sesuai perhitungan, bisa dipastikan motor kamu tidak sehat.

Untuk mengetahui top speed motor kamu, terlebih dahulu ketahui spesifikasinya. perhitungan yang akurat memerlukan data yang spesifik.

contoh mari kita simak spesifikasi dari motor yamaha terbaru byson, dan Spec Gearbox Ratio FZ16 / BYSON berdasarkan Service Manualnya.

Mesin
  •     Tipe Mesin : 4 Langkah, 2 Valve SOHC, Berpendingin Udara
  •     Jumlah / Posisi Silinder : Cylinder Tunggal / Tegak
  •     Volume Silinder : 153 cc
  •     Diameter x Langkah : 58,0 x 57,9 mm
  •     Perbandingan Kompresi : 9,5 : 1
  •     Daya Maksimum : 10,1 kW / 7500 rpm
  •     Torsi Maksimum : 13,6 Nm / 6000 rpm
  •     Sistem Starter : Electric Starter dan Kick Starter
  •     Sistem Pelumasan : Basah
  •     Kapasitas Oli Mesin : Total : 1,2 Liter / Penggantian Berkala : 1 Liter
  •     Sistim Bahan Bakar : Karburator BS26 x 1
  •     Tipe Kopling : Basah, Kopling Manual, Multiplat
  •     Tipe Transmisi : Return, 5 Kecepatan
  •     Pola Pengoperasian Transmisi : 1 - N - 2 - 3 - 4 - 5

 Spec Gearbox Ratio FZ16/BYSON
  • Primary Reduction = 75/22 (3.409)
  • Secondary Reduction = 40/14 (2.857)
  • 1st = 38/14 (2.714)
  • 2nd = 34/19 (1.789)
  • 3rd = 29/22 (1.318)
  • 4th = 23/22 (1.045)
  • 5th = 21/24 (0.875)

rumus yang dipakai adalah

Total Rasio reduksi = Primary reduction ratio x Transmission gear ratio x Final reduction ratio.


Primary reduction ratio adalah perhitungan dari Primary Reduction = 75/22 (3.409)

Transmission gear ratio adalah perbandingan rasio gir contoh di gigi 5 = 0.875

Final reduction ratio adalah perbandingan gir primer dan gir sekunder, yaitu 40/14 (2.857)


mari kita lihat kemampuannya di gigi 5,

Total Rasio reduksi = 3.409 x 0.875 x 2.857 = 8.522

diketahui Daya Maksimum : 10,1 kW / 7500 rpm, pada saat peak power di RPM 7500.
Putaran mesin perjam= RPM x 60 minutes = 7500 x 60 = 450000
Top speed pada daya maksimum 10,1 kW adalah = (450000 / 8.522) x 0.00195 = 52804.506 x 0.00195 = 102.968 km/jam

Gimana kalo di RPM red line 9000 RPM, dan gear ke 5
top speednya adalah = (540000 / 8.522) x 0.00195 = 123.6 km/h

berarti yamaha byson di 10000 RPM gear ke-5 sanggup 137.3km/h ... dengan mesin standar hmmm..

Sunday, August 12, 2012

Motorcycle



A motorcycle (also called a motorbike, bike, moto or cycle) is a two or three wheeled motor vehicle. Motorcycles vary considerably depending on the task they are designed for, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.

Motorcycles are one of the most affordable forms of motorised transport in many parts of the world and, for most of the world's population, they are also the most common type of motor vehicle. There are around 200 million motorcycles (including mopeds, motor scooters, motorised bicycles, and other powered two and three-wheelers) in use worldwide, or about 33 motorcycles per 1000 people. This compares to around 590 million cars, or about 91 per 1000 people.

Most of the motorcycles, 58%, are in the developing countries of Asia – Southern and Eastern Asia, and the Asia Pacific countries, excluding Japan – while 33% of the cars (195 million) are concentrated in the United States and Japan. In 2006, China had 54 million motorcycles in use and an annual production of 22 million units. As of 2002, India, with an estimated 37 million motorcycles/mopeds, was home to the largest number of motorised two wheelers in the world. China came a close second with 34 million motorcycles/mopeds.