No taker for this topic ka... or this topic is too boring to be discussed...?
not boring but very lenghty to discussed.I try to shorten it eh;
campro-this is a basic engine.no fancy vvt or intake or anything.the famous thing about this engine is the torque dip at mid rpm.the high end is sweet though. comes in 1.3 and 1.6 but majority is 1.6.the 1.3 campro in the neo and gen2 received lots of negative feedback due to the torque dip which led to bad fc.
campro + iafm - proton smarten a bit and bolt on a vacuum operated intake modulator.it will change from short runner to long runner at a fixed rpm point.it soove the torque dip at a sacrifice of 2-3 peak hp.if not mistaken the switch happen at 4200rpm...you can google this.high end remain as sweet as before.
campro+vim+cps - its a campro engine with cam profile switching and electronic controlled intake module.The camshaft have 2 profile (imagine vtec but tone down the volume from 10 to 3).it switch to high cam at 4400rpm (3800 rpm for exora and waja)for neo cps.the vim is just an electronic version of iafm.u can google the switchover rpm point.this is the best engine from proton.
campro cfe-its a turbocharged campro with comparable torque figure with competitior but much less hp.its because the engine is an improved version of a NA engine with turbo bolt on.VVT is only available at one side of the cam.good power but not so impressive fc regardless how u drive.might as well go fast all the time.what weird abt this engine or rather the throttle mapping is that the throttle is much more agressing on the exora cfe rather than the preve or evem the suprima s.
In case of the waja it has plenty of engine being mated to it...the campro,campro cps,renault f4p,mitsu engine.
the best in term of overall spec and performance and reliability will be the waja cps.
The mitsu engined waja is just sluggish and not well put together.
the campro powered waja oso sluggish and poorly built
the best in my heart will be the renault powered waja.it has the torque and great fc.
latest gen of campro engine is the campro vvt.from my personal experience with the 1.3 variant,it return great fc.city driving return at least 14km/l.when we get better at driving a car with scooter gearbox we can easily get better figure.However,at highway speed it still loses to my waja fc. this is the most refined engine from proton for me.