Volumetric efficiency Vs volumetric pressure(cranking pressure).
Assalamualaikum dan salam sejahtera sahabat semua.. semoga sihat dan bahagia selalu.. Topic kali ni.. simple je.. tapi .. bermakna.. insyaallah.. berkaitan volume efficiency atau short term VE. beberapa kesimpulan dari topik ni.. 1)semakin tinggi CR setup.. semakin rendah VE. 2)semakin tinggi VE semakin besar output(kuasa). untuk tinggikan VE dan volumetric pressure 1)setup low duration cam (low CR) 2)porting squeez 3)force induction system (turbo,supercharge,compressor) volumetric pressure(VP) 1)100psi-200psi(150psi normal) 2)bagi kereta...utk set high boost kene rendahkan Cr kurang dari normal NA tune.. atau naikkan duration cam dgn set low CR(contoh Brand JUN273°) set cr10.. bergantung kesesuaian.. utk motor.. kalau over pressure(ketat) VP tinggi.. 1)tukar Cam duration lebih tinggi.. tak perlu rendahkan Cr.. 2)atau.. rendahkan CR... cam yg sama..(cerewet sikit).. 3) utk DOHC boleh besarkan LSA tanpa ubah CR.. guna cam yg sama.. just ubah LSA..(besarkan). semoga bermanfaat.. insyaallah

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