Cam duration vs compression ratio vs dynamic compression ratio.(read description)
Автор: ahmad hafiz
Загружено: 2020-11-09
Просмотров: 23472
Описание:
assalamualaikum dan salam sejahtera kepada pencinta ilmu pemotoran.. kali ni sy kongsi pengalaman berkaitan camshaft dan die punye charateristic.. insyaallah.. yg ade pengalaman boleh tambah kt komen.. perkongsian ilmu di musim pkp.. semoga bermanfaat.. insyaallah.. amin..
Noted*
#dynamiccompressionratio
IVC: intake valve close
IVO:intake valve open
EVO:exhaust valve open
EVC: exhaust valve close
LSA:lobe saperation angle
CR:compression ratio
DCR:dynamic compression ratio
example: Cr=9 with IVC =25° will get approximately 7.75 DCR.. depend on valve saiz and piston bore size .. (square/under square/over square)
*DCR for Ron95: 7.5-8.2..
to get proper DCR.. we need to match CR with IVC,piston bore and valve size..
cara naikkan DCR
1)rendahkan IVC(low duration cam)
2kecikkan saiz valve(head standard)
3)naikkan CR.
cara rendahkan DCR.... sebaliknya..
*advance cam-IVC jadi kecik
*retard/delay-IVC jadi besar.
superbike-merujuk kepada sportbike/motogp..
tersasul harap dimaafkn..🙏😁
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