Enhancing Engine Performance and Environmental Sustainability Through Innovative Exhaust Design

¹ Automotive Engineering Technology Department, 55183 Universitas Muhammadiyah Yogyakarta, Indonesia
² Medical Electronics Technology Department, 55183 Universitas Muhammadiyah Yogyakarta, Indonesia

^* Corresponding author: angga19@umy.ac.id

Abstract

This research investigates and demonstrates the potential benefits of material innovation and exhaust design in enhancing vehicle performance and being more environmentally friendly. The pursuit of optimal vehicle efficiency has driven the exploration of alternative materials. Galvanized materials have emerged as a significant factor, highlighting the potential for increased agility and fuel efficiency. With this material, the new exhaust design results in an extraordinary weight reduction of 3.2 kg compared to the original exhaust at 6.450 kg. Additionally, the new exhaust design has yielded significant improvements in performance metrics. The peak power output of the original exhaust is 12.4 HP at 7336 RPM, increasing to 13.3 HP at 7695 RPM, showing a power increase of 7%. The maximum torque of the original exhaust is 12.99 N.m at 6186 RPM, increasing to 13.81 N.m at 5501 RPM, showing a torque increase of 6%. The power-to-weight ratio calculation shows a substantial shift in efficiency, with the original exhaust having a value of 0.09 HP/Kg and the new, more efficient exhaust having 0.10 HP/Kg, an efficiency increase of 11%. Furthermore, the noise produced by the original exhaust at a maximum of 8000 RPM is 90.2 dB, while the new exhaust at a maximum of 8000 RPM is 88 dB. From these results, it can be concluded that the new exhaust design enhances motorcycle efficiency and is more environmentally friendly.