initial reasons for engine to have engine rubber mounting?
- cos engine high vibration everyone knows loh, put rubber mounting to minimise vibration to car chasis so car will not break, engine will not fall out, also more comfy ride ler..
we all fast and furious right?
- yes, so engine high rev gila babi loh, high rev and high performance... engine sure goyang like sochai one!! need everything to be stiff.... but if too stiff or no rubber mounting whole car vibrates like sochai....
yeah loh... like sochai onli.... but like you said we fast and furious mah.... high revin got rubber mounting also shake shake bon bon woooorrrr..... so why do we still put PU hard bushing like that ar?
- dun wan kinetic power/energy loss due to engine vibration. something like those audio system floor standing speakers standing on pins... ever wondered why? ;)
woa... listening to this I feel the car so HARD liao.... engine dun get spoilt meh if cannot move??
- actually it's much better if engine dun move too much, (applies to in-line engines left to right.... dunno about nissans front to back cylinders) why? cos piston rocks front and back mah.... cylinder wall front and back mah become more spaced.... later cylinder hole become oval shaped "0" instead of round "O" ...... pinging? phishing? knocking? I dunno which one applies...one of them ler....(soli forgot liao.. :P )
but also dun wan lousy ride when go kai kai wif girlfriends or stuck in traffic jam woor, how ar?
- install engine damper loh.
but engine damper also pasang to chasis wat?!! still shake mah.... chasis mah koyak?
- they dun call it damper for nothing right? it's absorb the shock like your suspensions lar.... your suspension bolts got koyak not??
hope this helps... :D
ps - sometimes I think I should be be in technical sales... <_<