Performance and Fuel Efficiency Evaluation of an Injection Converter Kit Retrofit on a 100cc Four-Stroke Engine

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Published on-line since : Jul 2, 2025
DOI : https://doi.org/10.24036/aeej.v6i1.240
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Vol 6 No 1 (2025): Vol 6 No 1 (2025) : AEEJ : Journal of Automotive Engineering and Vocational Education

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Mohammad Rizky Al-mukharom
mahasiswa
Samsul Hadi

Abstract

This study investigates the effectiveness of an injection converter kit as a small engine retrofit for improving torque and fuel efficiency in a 100cc four-stroke motorcycle engine. An experimental method was applied using two fuel systems: a conventional carburetor and a retrofit converter kit. Torque and fuel consumption were measured across engine speeds ranging from 3000 to 7000 rpm using a dynamometer and volumetric analysis. The injection system achieved a peak torque of 6.78 N·m at 3600 rpm, exceeding the carburetor’s 5.90 N·m at 5300 rpm. It also demonstrated improved fuel economy at most RPM levels, with a spike at 6000 rpm due to overpressure. Statistical analysis via Two-Way ANOVA confirmed the significance of these differences. The results suggest that the injection converter kit is a viable small engine retrofit option for enhancing performance and efficiency in low-displacement motorcycles.

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Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite
Al-mukharom, M., & Hadi, S. (2025). Performance and Fuel Efficiency Evaluation of an Injection Converter Kit Retrofit on a 100cc Four-Stroke Engine. AEEJ : Journal of Automotive Engineering and Vocational Education, 6(1), 55-64. https://doi.org/https://doi.org/10.24036/aeej.v6i1.240

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