CPS (Cam Profile Switching) vs VVTI vs DVVT

[GSR06]

Probably mostly Mitsu kakis......lol

I thought Mitsu = Proton haha

 

[GSR06]

not many properly venture into campro..

most will swap...

Campro engine is really not productive & efficient... not fuel efficient as well...

 

[GSR06]

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.

Thanks for sharing your thoughts..... regarding the torque dip, I experienced it on Gen 2... very annoying actually and you can't get the power when you need it the most as it changes gear even without reaching its torque peak..

Basically, Campro is the basic engine that is used to be further upgraded... I like the Turbo version though. My friend's Exora Bold/CFE is a bit heavy... when start from traffic light, it feels funny though as if it doesn't want to move naturally....

 

[GSR06]

Maybe too risky and time consuming for trial and error.....lol

I guess it won't gain much hp .... waste of $$ and it might not be reliable

 

[GSR06]

only poor people like me buy campro iafm.cant afford cps head,let alone turbo..hehehe

there was a neo for sale on mudah couple month back which is rojak between campro+cfe...

my wet dream mod for my blm;
-1.6 stroker kit (the flywheel is not a direct swap eh?)
-cps head.
-if got extra 5-6k then install the sprintex sc.

Original 1.6L BLM FLX already can fly as it's so light.... if you turbocharged it some more, I can't imagine lo

 

[Nicholasng925]

Original 1.6L BLM FLX already can fly as it's so light.... if you turbocharged it some more, I can't imagine lo

My friend's Saga BLM is with bolt-on turbo also. High torque, fun car! Handling wise I feel that my Neo is still better

 

[vr2turbo]

Yours is Suprima S? Charged Fuel Efficiency (CFE) Turbo CamPro IAFM+ 4-Cylinder

The catalogue claims 8.8L/100km though.

For the CVT, it uses clutch plate? I thought all automatic GB uses torque converter... Nissan Sylphy's CVT is very smooth.... basically, you can't feel anything during gear change.

CVT is smooth, belt driven....

I thought Mitsu = Proton haha

Yes, but later they ditch Mitsu for Campro.......lol

 

[GSR06]

My friend's Saga BLM is with bolt-on turbo also. High torque, fun car! Handling wise I feel that my Neo is still better

Should be low boost turbo...the original pistons won't be able to take high boost... for handling wise, I don't think it will be stable at high speed as BLM isn't designed for such a speed.

 

[GSR06]

CVT is smooth, belt driven....



Yes, but later they ditch Mitsu for Campro.......lol

haha... true... now is Geely...

 

[vr2turbo]

haha... true... now is Geely...

Got to wait and see what is coming.......lol

 

[GSR06]

I had a bad experience with Saga BLM FLX... Went to holiday with family and rented this car. After a tiring day, went back to hotel and it had a steep slope before reaching the hotel. Settled all the stuffs and we decided to go for dinner. ... what happened next was embarrassing though. Half way through the slope, the car can't go up further even though I floored the pedal to the metal... I pressed the brake and had to ask all my family members to get down from the car and yet, I floored the pedal and the car can't go up as well... had to ask the staffs to push the car up..... anyone experienced this before...? I believe this is a 1.3L and it's definitely has a CVT GB...

 

[vr2turbo]

I had a bad experience with Saga BLM FLX... Went to holiday with family and rented this car. After a tiring day, went back to hotel and it had a steep slope before reaching the hotel. Settled all the stuffs and we decided to go for dinner. ... what happened next was embarrassing though. Half way through the slope, the car can't go up further even though I floored the pedal to the metal... I pressed the brake and had to ask all my family members to get down from the car and yet, I floored the pedal and the car can't go up as well... had to ask the staffs to push the car up..... anyone experienced this before...? I believe this is a 1.3L and it's definitely has a CVT GB...

Yah! Did hear something about half way the hill ascend thing on Proton, cannot go up......lol
Read here....
http://www.zerotohundred.com/newforums/showthread.php?t=448965&page=2

 

[g4i8y0t]

Yours is Suprima S? Charged Fuel Efficiency (CFE) Turbo CamPro IAFM+ 4-Cylinder

The catalogue claims 8.8L/100km though.

For the CVT, it uses clutch plate? I thought all automatic GB uses torque converter... Nissan Sylphy's CVT is very smooth.... basically, you can't feel anything during gear change.

Yes, it uses clutch plates. Some CVT uses torque converter. Going from neutral (N) to drive (D), it must have some coupling. Otherwise, the car will lurch forward when you start the car.

 

[sanekit]

I had a bad experience with Saga BLM FLX... Went to holiday with family and rented this car. After a tiring day, went back to hotel and it had a steep slope before reaching the hotel. Settled all the stuffs and we decided to go for dinner. ... what happened next was embarrassing though. Half way through the slope, the car can't go up further even though I floored the pedal to the metal... I pressed the brake and had to ask all my family members to get down from the car and yet, I floored the pedal and the car can't go up as well... had to ask the staffs to push the car up..... anyone experienced this before...? I believe this is a 1.3L and it's definitely has a CVT GB...

a lot of saga kena like this. the CVT gb overheat.

 

[GSR06]

Yes, it uses clutch plates. Some CVT uses torque converter. Going from neutral (N) to drive (D), it must have some coupling. Otherwise, the car will lurch forward when you start the car.

Why using clutch plate got issues?

 

[GSR06]

a lot of saga kena like this. the CVT gb overheat.

I think if the gradient of the slope >30Degrees, then you will have this issue... normal slope will have no issue. The slope that I drove was very steep >30 degrees....

 

[gunnerzz]

I had a bad experience with Saga BLM FLX... Went to holiday with family and rented this car. After a tiring day, went back to hotel and it had a steep slope before reaching the hotel. Settled all the stuffs and we decided to go for dinner. ... what happened next was embarrassing though. Half way through the slope, the car can't go up further even though I floored the pedal to the metal... I pressed the brake and had to ask all my family members to get down from the car and yet, I floored the pedal and the car can't go up as well... had to ask the staffs to push the car up..... anyone experienced this before...? I believe this is a 1.3L and it's definitely has a CVT GB...

Never experience before woth the exora bold cfe.Even with 8 adult at cameron highland.the key is to use L gear instead of D.There is marked different when you do so.On D it will struggle and feels like it will just let go and roll back.the engine builds boost but when at abt 1800rpm,it releases the boost and the car almost roll back before the engine build up boost until the cvt lock up point again and again and again.with L gear it will climb steadily.

 

[Nicholasng925]

Should be low boost turbo...the original pistons won't be able to take high boost... for handling wise, I don't think it will be stable at high speed as BLM isn't designed for such a speed.

He's boosting 1.2 bar but with internals fully changed to CFE semi-forged

 

[GSR06]

He's boosting 1.2 bar but with internals fully changed to CFE semi-forged

1.2 bar... fantastic and good luck.. see how long it can tahan... put 2 wings on the car, it's ready for take off....

 

[vr2turbo]

Never experience before woth the exora bold cfe.Even with 8 adult at cameron highland.the key is to use L gear instead of D.There is marked different when you do so.On D it will struggle and feels like it will just let go and roll back.the engine builds boost but when at abt 1800rpm,it releases the boost and the car almost roll back before the engine build up boost until the cvt lock up point again and again and again.with L gear it will climb steadily.

So lock in L can still climb.....:hmmmm: