development enabled Dynojet Research Inc.to pioneer the first
single-roller , inertia-based chassis dynamometer for motorcycles
in 1989. This revolutionary design measures horsepower and torque
through the use of a rotating drum with a known mass. Energy
drawn from the drive wheels of a vehicle is stored in the drum,
and by measuring the acceleration of the drum and the vehicle's
engine rpm, horsepower and torque can be calculated. This type
of "inertia" dyno testing is highly accurate and repeatable,
since the mass of the drum remains constant.
The benefits of this
design were immediately evident. Therefore, with the development
of a computer interface and software package, Dynojet began
marketing the Model 100 Motorcycle Dynamometer. The Model 100
proved to be affordable, reliable, accurate, and above all,
consistent , not only from one measurement to the next, but
also from one Dynojet Dynamometer to another. This enabled the
communication and sharing of test data.
Chassis Dynamometer has become the industry standard in chassis
dynamometers worldwide because of its revolutionary ability
to measure horsepower/torque with repeatability of 1% from Dynojet
to Dynojet anywhere in the world!
Isaac Newton said, (Force=Mass x Acceleration)
Force (horsepower) = Mass (weight of drums) x Acceleration (provided
by the vehicle being tested)
the only variable in the equation is the vehicle, we can measure
the amount of horsepower a vehicle produces at the rear wheels
with an extremely high level of accuracy and repeatability.
There are up to 4000 sample points in a typical Dynojet horsepower
test! Dynojets use the (SAE J1349 rev. June 1990) correction
factor, this is the lastest correction factor in use today.
Allowing our customers to compare results with each other from
all Dynojets worldwide. Test can also be measured using DIN,
EEC, and STD correction factors.
USED BY RACING TEAMS:
- Yoshimura Suzuki
- Team Kawasaki
- Team Yamaha
- Erio Racing
- Team Valvoline/Emgo Suzuki
- Graves Yamaha
- American Honda Racing
- Monster Mob Ducati UK
- Pro Circuit
- TAS Suzuki UK
- Crescent Racing UK
- V&M Racking UK
- Ducati SBK
© 2003 DYNOSPORT. All rights reserved.
by Trenton Wilcox