(Artikel) Pengaruh Penggunaan Variasi Knalpot Racing Terhadap Performa Mesin Motor Injection 115cc Tahun 2013

Currently more and more public vehicles such as modified motorbikes, including the
easiest modification without dismantling the engine to improve motor vehicle performance is to
replace the motorbike. This study aims to determine the difference in motor performance with
the use of variations of oval and trioval racing exhaust models by testing power and torque.
Testing of each type of exhaust was tested on a 115cc injection motorbike engine in 2013 using
dynotest, which is connected to a computer. The computer captures data from the changes in
power and torque of each type of exhaust tested. The results showed the maximum torque in the
standard exhaust is 9,73 N.m at engine speed 3000 rpm and maximum torque on the racing oval
exhaust is 10,27 N.m at engine speed 3500 rpm while the maximum torque produced by trioval
racing exhaust is 10,39 N.m at engine speed 6500 rpm. While the maximum power produced by
the standard exhaust, oval racing and trioval racing on the same engine screen is 7000 rpm but
produces different power, the standard exhaust reaches a power of 9,26 Hp, an oval racing
exhaust of 9,83 Hp and a trioval racing exhaust of 10,03 Hp