| Jurnal Angkasa Tahun 2013 Oleh Wardoyo |
PENGARUH MODIFIKASI LUBANG INLET OUTLET DAN SILINDER HEAD TERHADAP KENAIKAN PUTARAN DAN DAYA PADA MESIN BENSIN DUA LUBANG SATU SILINDER UNTUK SEPEDA MOTOR |
| ABSTRAK |
| This research studiesabout the influence of modifications inlet outlet hole and cylinder head to the increase in rotation and power of spark ignition engine two stroke singlecylindersof motorcycles. As research material used brand Yamaha FIZR of motorcycle engine and research tools used digital tachometer to measure engine speed and dynamometer to measure torque. This research done by modifying the outlet port duration of 126 ° to 185 °, the duration of the inlet holes of 71 ° to 97°, and hole transfer of 78° to 87°. This modifications done by reducing the thickness of the grout on the cylinder head of 1 mm and widened squish from 7 mm to 8 mm. This research was carried out with two testing, the testing of performance of engine standards and the testing of performance of engine after modified. The test results are compared to know how big the influence of modification. From these results, it can be seen that there is an increased rotation of 2000 rpm and a power of 0.038% and scavenging efficiency of 0.00024%. Keywords: duration of a round port, two stroke gasoline engine power. |
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