Studi Eksperimental Pengaruh Modifikasi Throttle Body dan Remapping Ecu Terhadap Performa Motor Matic 125 CC

Oktama, Muhammad Raffa Putra and , Ir. Amin Sulistyanto, S.T., M.T. (2026) Studi Eksperimental Pengaruh Modifikasi Throttle Body dan Remapping Ecu Terhadap Performa Motor Matic 125 CC. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

This study aims to determine the effect of using a 28 mm throttle body and a combination of a 28 mm throttle body with ECU remapping on engine performance in terms of torque, power, and Specific Fuel Consumption (SFC) of a 125 cc automatic motorcycle. The research employed an experimental method by comparing three test conditions: standard configuration, 28 mm throttle body, and 28 mm throttle body combined with ECU remapping. Performance testing was conducted using a dynamometer within an engine speed range of 3000–9000 rpm, while fuel consumption testing was carried out to obtain SFC values for each test variation. The results showed that the combination of a 28 mm throttle body and ECU remapping produced the best performance. The highest torque achieved was 15.93 Nm at 3888 rpm (standard: 14.66 Nm at 4136 rpm), while the highest power reached 10.14 HP at 6904 rpm (standard: 9.70 HP at 5656 rpm). In terms of fuel consumption, the lowest SFC value was obtained under standard conditions at 0.12798180 kg/hp·h at 5656 rpm, whereas the 28 mm throttle body and the 28 mm throttle body with ECU remapping produced minimum SFC values of 0.15899420 kg/hp·h and 0.16266670 kg/hp·h, respectively. It can be concluded that the combination of a 28 mm throttle body and ECU remapping provides the highest improvement in engine performance. This occurs because the larger throttle body increases the airflow capacity entering the engine, while ECU remapping adjusts fuel delivery and engine speed limits to optimize the combustion process. As a result, torque and power increase, although accompanied by an increase in specific fuel consumption.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	throttle body, ECU remapping, torque, power, specific fuel consumption, 125 cc automatic motorcycle.
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > Mechine Design
Divisions:	Fakultas Teknik > S1 Teknik Mesin
Depositing User:	MUHAMMAD RAFFA PUTRA OKTAMA
Date Deposited:	11 Aug 2026 07:43
Last Modified:	11 Aug 2026 07:43
URI:	http://eprints.ums.ac.id/id/eprint/106522

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