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<blockquote data-quote="wirafly" data-source="post: 809985" data-attributes="member: 10859"><p>milo, I think no way can compare to gen2, why?</p><p></p><p>Campro engine is a weird engine.......</p><p><strong>Long stroke engine</strong> ------ suppose to have bad top end but good response on low end.....but I suspect this engine with higher lift and duration cam profile....where it behave a strong top end performance but so so(or weak) performance at long end (hehehe, same thing happen to my 4G13 with powerzone high cam and PNP head, so far manage to drag my car 0-100km in 11seconds with my heavy 15" JRD rim, but I am going to loss all this performance because I am transplant to 4G91 AUTO somemore....no choice, orang sudah tua, cannot tahan everyday traffic jam with my cable clucth)</p><p><strong>Got Flat Point Engine</strong> ------ Campro got flat point around 3000-3500rpm......if engine got flat point, normally means after flat point the power damn siok.....I have tested gen2 manual.....I am sure if the owner know how to by pass the flat point by playing with their gear position.....they will say byebye to us.....</p><p><strong>Long Ratio gear Box</strong> ------ Weird again, in view campro have such setting, but they still using long Ratio gear box......I suspect due to cost issue(same gear box with waja), better FC(engine rotate at lower speed)</p><p></p><p>4G9X series is a short stroke engine, short stroke engine will have the following characteristic</p><p>1. Higher Fuel Consumption for the same engine capacity</p><p>2. Linear performance</p><p>3. NVH better (due to short stroke. the piston travel lesser distance thus reduce fliction, thus less vibration, less noise....)</p><p>4. Last longer.....again, piston travel lesser distance...lesser fliction....lesser wear and tear.</p><p>6. Lower torque at low engine speed.</p><p>7. Gear box closer ratio to compesate engine characteristic on poor low end performance.</p><p></p><p>actually I prefer short stroke engine as it perform smoother(is it?)</p><p>I also prefer 16 valve engine.....compare to my 12 valve engine.....car manufacturer tend to put in lower duration cam(lower duration means better NVH, not like my high cam in 4G13, when they kick in after 4000rpm, the engine sound like MIVEC....macam engine pecah sound), later I just need send my car for PNP and raise the compression ratio I strongly belief the engine will perform similar to higher duration cam but maintain low NVH and better idling speed.....hehehe</p><p></p><p></p><p>Just my 2 cents.... :-)</p></blockquote><p></p>
[QUOTE="wirafly, post: 809985, member: 10859"] milo, I think no way can compare to gen2, why? Campro engine is a weird engine....... [b]Long stroke engine[/b] ------ suppose to have bad top end but good response on low end.....but I suspect this engine with higher lift and duration cam profile....where it behave a strong top end performance but so so(or weak) performance at long end (hehehe, same thing happen to my 4G13 with powerzone high cam and PNP head, so far manage to drag my car 0-100km in 11seconds with my heavy 15" JRD rim, but I am going to loss all this performance because I am transplant to 4G91 AUTO somemore....no choice, orang sudah tua, cannot tahan everyday traffic jam with my cable clucth) [b]Got Flat Point Engine[/b] ------ Campro got flat point around 3000-3500rpm......if engine got flat point, normally means after flat point the power damn siok.....I have tested gen2 manual.....I am sure if the owner know how to by pass the flat point by playing with their gear position.....they will say byebye to us..... [b]Long Ratio gear Box[/b] ------ Weird again, in view campro have such setting, but they still using long Ratio gear box......I suspect due to cost issue(same gear box with waja), better FC(engine rotate at lower speed) 4G9X series is a short stroke engine, short stroke engine will have the following characteristic 1. Higher Fuel Consumption for the same engine capacity 2. Linear performance 3. NVH better (due to short stroke. the piston travel lesser distance thus reduce fliction, thus less vibration, less noise....) 4. Last longer.....again, piston travel lesser distance...lesser fliction....lesser wear and tear. 6. Lower torque at low engine speed. 7. Gear box closer ratio to compesate engine characteristic on poor low end performance. actually I prefer short stroke engine as it perform smoother(is it?) I also prefer 16 valve engine.....compare to my 12 valve engine.....car manufacturer tend to put in lower duration cam(lower duration means better NVH, not like my high cam in 4G13, when they kick in after 4000rpm, the engine sound like MIVEC....macam engine pecah sound), later I just need send my car for PNP and raise the compression ratio I strongly belief the engine will perform similar to higher duration cam but maintain low NVH and better idling speed.....hehehe Just my 2 cents.... :-) [/QUOTE]
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