Pramudiksa, Bagoes Anugrah (2025) ANALISIS PENGARUH MODIFIKASI STROKE UP, BORE UP SERTA PENGGUNAAN KOIL DAN BUSI RACING TERHADAP KINERJA MESIN HONDA GL 156. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
This study discusses the effect of increasing engine capacity through stroke-up and bore-up, as well as the use of racing ignition coils and spark plugs, on the performance of a Honda GL engine originally 156 cc, which was upgraded to 243 cc. The tests showed changes in performance and emission parameters. The compression ratio increased from 9.01:1 to 10.6:1, resulting in higher torque and power across almost the entire engine speed range. At 5000 (rpm), the specific fuel consumption (SFC) of the 243 cc engine decreased from 297 g/Hp·h to 202.67 g/Hp·h, representing a reduction of 31.76% after using the racing coil and spark plug. The 156 cc engine also showed a decrease in SFC from 650 g/Hp·h to 443 g/Hp·h, or a reduction of 31.85%. HC emissions decreased significantly, especially in the 243 cc racing engine, from 1069.67 ppm to 658.33 ppm at 1500 (rpm). The O₂ content in the exhaust gas dropped by up to 76.4%, indicating a more effective combustion process. Conversely, CO₂ increased due to more complete combustion. Overall, the combination of increasing engine capacity through stroke-up and bore-up, along with racing ignition components, improves combustion efficiency, engine performance, and reduces fuel consumption per unit of power.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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| Divisions: | Faculty of Engineering > Departement of Mechanical Engineering | ||||||||
| Depositing User: | Bagoes Anugrah Pramudiksa | ||||||||
| Date Deposited: | 22 Dec 2025 04:55 | ||||||||
| Last Modified: | 22 Dec 2025 05:09 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/48111 |
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