though the torque drop substantially after 3000 rpm

the higher the revs the bigger the momentum you carry forward to the next gear
so the drop off is not that greater

unless you have good e-gears
there is no way that you can change gear without hesitation

I got the answer here:
http://forum.lowyat.net/topic/1251285

N here r some, HP vs Torque Article in CHINESE:(hope some1 with good english can help to translate it,im powerless in translating )
N for those tat can understand chinese,u should not miss these article straight to the POINT
http://cars.zaobao.com/pages2/motoring180703.html

http://auto.sina.com.cn/news/2004-03-23/59941.shtml

This post has been edited by nujo87: Dec 7 2009, 05:08 PM

Actually i notice campro sweet spot is between 2.8 till 4k for my iafm that is

This post has been edited by -storm-: Dec 7 2009, 05:57 PM

Ya IAFM had improved their low rpm torque n CPS even better,CPS r having a wide range of torque from 1k-6k.
But the old Campro engine,for example the older Gen2,their sweet spot should be 4k-5.5k

i dun like proton much...but their CPS engine now r really ,
Easily a waja CPS can smoke a VIOS
CPS torque curve:
http://www.motortrader.com.my/NUS/articles...1261/page_m.asp

This post has been edited by nujo87: Dec 7 2009, 07:57 PM

stock waja 4g18 engine max torque is at 2.7k..i usually shift b4 or at 2.5k..enuf power for me..but if i want to go quite fast..i hold my shift usually until 3.5k or 4k rpm..but it depends on you to determine required power at a gven moment..need to know car characteristics..load..simple to say..experience and practice

it also depends on how fast you can shift from gear to gear. if you're quick enough to not let the revs drop too much between shifts then you dont have to shift at too high an rpm..