Studi Eksperimental Performa Motor Empat Langkah Injektor Delapan Hole Tekanan Fuel Pump 3,5 Bar Coil Aftermarket Variasi Injection Fuel Timing

Al Rosyid, Fahri Toha and , Ir. Sartono Putro, M.T. (2026) Studi Eksperimental Performa Motor Empat Langkah Injektor Delapan Hole Tekanan Fuel Pump 3,5 Bar Coil Aftermarket Variasi Injection Fuel Timing. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

This study aims to determine the effect of using an 8-hole injector, 3.5 bar fuel pump pressure and a aftermarket coil with variations of standard platinum spark plug tps, standard iridium spark plug tps, platinum spark plug racing tps and iridium spark plug racing tps on the performance of a 150cc four-stroke automatic motorcycle engine. The main parameters tested include torque, power, and specific fuel consumption (KBBS) with Pertamax RON 92 fuel. Testing was carried out using a dynotest tool to obtain power and torque data, as well as a KBBS test tool to calculate fuel consumption. The results showed that the use of an 8-hole injector, 3.5 bar fuel pump pressure and a racing coil with variations of iridium spark plug racing tps can significantly improve engine performance compared to standard conditions. The highest torque was obtained in the iridium spark plug racing tps variation of 27.84 Nm at 2642 rpm, while the highest power was 11.1 HP at 3000 rpm. However, the standard condition has the most efficient fuel consumption with a KBBS of 0.13096 kg/hp.h. It can be concluded that the TPS racing iridium spark plug variation improves power and torque performance, but is not more efficient than the standard condition in terms of fuel consumption.

Item Type: Thesis (Skripsi)
Uncontrolled Keywords: TPS, spark plug, ignition coil, fuel pump pressure, engine performance, fuel consumption
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TJ Mechanical engineering and machinery > Otomotive Mechine
Divisions: Fakultas Teknik > S1 Teknik Mesin
Depositing User: FAHRI TOHA AL ROSYID
Date Deposited: 05 Aug 2026 04:01
Last Modified: 05 Aug 2026 04:01
URI: http://eprints.ums.ac.id/id/eprint/106508

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