Analisis unjuk kerja motor bensin 4 langkah 1 silinder 100 cc berbahan bakar etanol

I Made Mara, I Made Adi Sayoga, I Made Nuarsa, Ida Bagus Alit, Kade Wiratama


In line the population growth, technological developments and the increasing of vehicles, the necessary of fuel is increase. Therefore, the people try to find an alternative fuel that is ethanol as vehicle fuel. To increase the performance and efficiency to use of ethanol fuel in an engine is by varying the ignition timing.This research aimed to investigate the influence of ignition timing to torque, power and specific fuel consumption effective (SFCe) with 96% ethanol fuel. in an engine four stroke single cylinder 100 cc Honda Astrea Legenda. The  ignition timing variation are 15˚, 20˚ and 25˚ before TDC and the engine speed are 1500, 2500, 3500, 4500, and 6000 rpm.The results show that the engine has better performance when the engine  running on the  ignition timing is advanced. The highest torque at 20˚ ignition time before TDC 0.868 kgf.m at 6000 rpm, the highest effective power at 20˚ ignition time before TDC of 7.272 ps at 6000 rpm, and the lowest SFCe at 20˚ ignition time before TDC is 0, 08 kg / PS.hour at 6000 rpm.


Ignition timing, ethanol, engine speed, performance.

Full Text:



Arismunandar,W.,1988,Motor bakar torak, Bandung, ITB Bandung.

Heywood, J.B., 1988, Internal combustion engine fundamental, Singapore, Mc Graw-Hill book company Inc.

Mara, I M., Wirawan, M., Ma,bud T., 2014, Pengaruh ignition timing dengan bahan bakar lpg terhadap unjuk kerja mesin bensin empat langkah satu silinder, Jurnal Dinamika Teknik Mesin, Votume 4 No. I, hal. 1-6

Mara, I M., Sayoga, I M.A., Yudhyadi, I G.N.K., Nuarsa I M., 2018, Analisis emisi gas buang dan daya sepeda motor pada volume silinder diperkecil, Jurnal Dinamika Teknik Mesin, Vol. 8, No. 1, hal.8-13

Mara, I M., Joniarta, W., Alit, IB., Sayoga, IM. A., Nuarsa, M., 2018, Analisis penggunaan alat magnetisasi bahan bakar secara elektromagnetik terhadap unjuk kerja mesin empat langkah satu silinder, Jurnal Dinamika Teknik Mesin, Vol. 8, No. 2, hal. 99-103

Mara, I M., Sayoga, I.M. A., Nuarsa, I.M., Alit I.B., 2019, Analisis emisi gas buang kendaraan berbahan bakar etanol.,Jurnal Dinamika Teknik Mesin, Vol. 9, No. 1, hal 45-57

Setiyawan, Atok, 2007, Pengaruh ignition timing dan compression ratio terhadap unjuk kerja dan emisi gas buang motor bensin berbahan bakar campuran etanol 85% dan premium 15% (E-85), Jurusan Teknik Mesin Fakultas Teknologi Industri Institut Teknolgi Sepuluh November.



  • There are currently no refbacks.

Copyright (c) 2019 Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin

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

After being re-accredited, the Journal of Dinamika Teknik Mesin, still has sinta 3 (S3) which is valid until 2025.
View My Stats