CPS (Cam Profile Switching) vs VVTI vs DVVT

[sphiroth]

there're actually some cars that their engine runs a tad hotter than others. so much variables in there : different cams, engine restrictions (to cope with the euro thingy), compression ratio etc

and there IS such a thing called optimal operating temperature. since i reckon them engineers KNOW what they're doing, well..

but i found out (generally) that a for each 10 degrees celsius you manage to drop in intake temperature, you gain an additional 1% in horsepower.
on the cps neo that equals to.. what? 1.25bhp?

Meaning that CPS works wonders in cold winters. :proud: Hahaha.

BTW, boyzone, you should try LCP. You won't regret it man.

 

[boyzone]

Meaning that CPS works wonders in cold winters. :proud: Hahaha.

BTW, boyzone, you should try LCP. You won't regret it man.

What is LCP ??:hmmmm:

 

[sphiroth]

What is LCP ??:hmmmm:

Lighten crank pulley. Go for mythelogy brand.

 

[GSR06]

Just a basic mod for intake / outlet, a set of hi-low coil over + 5.3kg light weight rim and overall weight reduction. simple as that.

Basic mod with weight reduction in mind...it depends on what we wanted actually... driving local cars?

Bump:

Lighten crank pulley. Go for mythelogy brand.

Are you using the LPC now?... what would it help in terms of performance?

 

[sphiroth]

Basic mod with weight reduction in mind...it depends on what we wanted actually... driving local cars?

Bump:

Are you using the LPC now?... what would it help in terms of performance?

Yea..both on my previous ride and my current ride. Last time I use aerospeed brand (without damper) which is cheaper (around RM180) for my LMST, now using 2nd hand mythelogy (with damper, RM450, new one RM650). Noticable gain on pick up and less drag when the aircond compressor kicks in.

 

[Yong_5290]

tis tread is like the old mivec vs vtec question again...

 

[achmedrauff]

Yea..both on my previous ride and my current ride. Last time I use aerospeed brand (without damper) which is cheaper (around RM180) for my LMST, now using 2nd hand mythelogy (with damper, RM450, new one RM650). Noticable gain on pick up and less drag when the aircond compressor kicks in.

RM650 for a brand new one seems reasonable. I might just consider that one for my first Neo CPS mod. :D

 

[papagoines]

tis tread is like the old mivec vs vtec question again...

yeah... but nice to see this time, our national product has entered into the equation

 

[sphiroth]

RM650 for a brand new one seems reasonable. I might just consider that one for my first Neo CPS mod. :D

But you can get a whole pulley set (undamped) with that kinda price. http://forum.lowyat.net/topic/957853

 

[GSR06]

yeah... but nice to see this time, our national product has entered into the equation

Yup... we always talk about VTEC and Mivec...but seldom people talk about CPS... there should be a huge potential in this thing and not sure whether R3 is working something on this local pride or not. I read in the Sunday's NST cars and trucks' section...they are going to do a comparison btw Waja CPS vs Satria Neo CPS vs Gen 2 CPS vs Exora CPS. I believe it will be an interesting comparison, taking into consideration the different sizes and weight it model has...:proud:

Bump:

RM650 for a brand new one seems reasonable. I might just consider that one for my first Neo CPS mod. :D

Is LSD useful though?...not sure about that as I don't have experience with that and I haven't used the LCP as well. I also heard that they are working on CPS turbo now in Proton R&D...I remember I posted the news before on Turbo CPS, if it does available, I think a lot of people would be interested as well.... would it be something like KERS in F1 whereby there are a lot of problems with this system, even Ferrari is struggling with it.

 

[papagoines]

Yup... we always talk about VTEC and Mivec...but seldom people talk about CPS... there should be a huge potential in this thing and not sure whether R3 is working something on this local pride or not. I read in the Sunday's NST cars and trucks' section...they are going to do a comparison btw Waja CPS vs Satria Neo CPS vs Gen 2 CPS vs Exora CPS. I believe it will be an interesting comparison, taking into consideration the different sizes and weight it model has...:proud:

Bump:

Is LSD useful though?...not sure about that as I don't have experience with that and I haven't used the LCP as well. I also heard that they are working on CPS turbo now in Proton R&D...I remember I posted the news before on Turbo CPS, if it does available, I think a lot of people would be interested as well.... would it be something like KERS in F1 whereby there are a lot of problems with this system, even Ferrari is struggling with it.

Waja CPS vs Satria Neo CPS vs Gen 2 CPS vs Exora CPS... surely diff sets of tune i guess... for example, exora could use more torque way down to haul 7 ppl around

may i ask... whats is KERS?

 

[sphiroth]

Is LSD useful though?

Not in normal driving because it will actually make the car understeer and increase tyre wear (AFAIK), but really usefull in drag and spirited driving.

may i ask... whats is KERS?

Kinetic energy recovery system. When braking, kinetic energy are converted to electric energy and stored in a battery. The power stored can be used later for extra boost via electric motor.

 

[boyzone]

Btw, DO ECU system for CPS capable to support piggy back or SAFC etc ?

 

[sphiroth]

Btw, DO ECU system for CPS capable to support piggy back or SAFC etc ?

Some say yes (JC Racing), some say partially yes (N1, Kakimotor) and some say no (RS Impressive). Take your pick. Hahaha.

 

[papagoines]

Not in normal driving because it will actually make the car understeer and increase tyre wear (AFAIK), but really usefull in drag and spirited driving.



Kinetic energy recovery system. When braking, kinetic energy are converted to electric energy and stored in a battery. The power stored can be used later for extra boost via electric motor.

thanks bro now i know

 

[GSR06]

Waja CPS vs Satria Neo CPS vs Gen 2 CPS vs Exora CPS... surely diff sets of tune i guess... for example, exora could use more torque way down to haul 7 ppl around

may i ask... whats is KERS?

Yeah, it would be interesting to know which model would come out as winner of the overall CPS performance...

KERS means Kinetic Energy Recovery System whereby when you apply the brake, it will charge up and store the energy and when you press the button, it will supply extra 80bhp immediately. This is better than NOS as KERS is unlimited power supply but the teams are still fine tuning this system.

Bump:

Some say yes (JC Racing), some say partially yes (N1, Kakimotor) and some say no (RS Impressive). Take your pick. Hahaha.

I thought all the piggy back ECU is universal for all types of cars nowadays? It should be that way to minimize constraints and increase market shares as well :proud: Usually, piggy back ECU is the last mod to play with at it is not cheap also.

Bump:

Not in normal driving because it will actually make the car understeer and increase tyre wear (AFAIK), but really usefull in drag and spirited driving.

Maybe it is more useful for those cars with high bhp...it is used to ensure all the tyres are rotating during cornering and to prevent lagging in rotation..else, it would be useless right?

 

[liman9521]

maybe we could hear pro comment ; drive and judge about cps..
sounds good proton produce cps or whatever but the reality is s#*ks
theres nothing to proud with the national car which well known with VERY good quality..

Bump: maybe we could hear pro comment ; drive and judge about cps..
sounds good proton produce cps or whatever but the reality is s#*ks
theres nothing to proud with the national car which well known with VERY good quality..

 

[GSR06]

maybe we could hear pro comment ; drive and judge about cps..
sounds good proton produce cps or whatever but the reality is s#*ks
theres nothing to proud with the national car which well known with VERY good quality..

Bagi chance la, Bro... too early to tell whether it is good or bad. Like you said, leave it to the profesionnal to judge it...what makes you said Proton CPS is not good?

 

[sphiroth]

I thought all the piggy back ECU is universal for all types of cars nowadays? It should be that way to minimize constraints and increase market shares as well :proud: Usually, piggy back ECU is the last mod to play with at it is not cheap also.

Its because Siemen ECU works on closed loops, when SAFC adjust the signal input of the ECU, the ECU will re-check with the O2 sensor and adjust back accordingly.

Bump:

Maybe it is more useful for those cars with high bhp...it is used to ensure all the tyres are rotating during cornering and to prevent lagging in rotation..else, it would be useless right?

Not bhp, its the torque.

maybe we could hear pro comment ; drive and judge about cps..
sounds good proton produce cps or whatever but the reality is s#*ks
theres nothing to proud with the national car which well known with VERY good quality..

The engine is good but it still inherits the previous Waja problem such as power windows because still using the old chasis. My driver side window drop and break during the 2nd week of ownership, but claim warranty.

Bagi chance la, Bro... too early to tell whether it is good or bad. Like you said, leave it to the profesionnal to judge it...what makes you said Proton CPS is not good?

We don't need professional to decide, its suppose to be the consumer, because in the end, its the consumer who going to buy the car.

 

[papagoines]

Its because Siemen ECU works on closed loops, when SAFC adjust the signal input of the ECU, the ECU will re-check with the O2 sensor and adjust back accordingly.

Heard the same happened to 4AGE 20V rite?? at first SAFC works wonderfully but in the long run, the ECU just ignore the SAFC adjustments

hope someone can R&D how to reflash the Siemen ECU directly... by logic, it can be done right?

Not bhp, its the torque.

Nowaday ppl talk about improving torque to improve daily driving and FC....izzit true? means that to get a certain level of performance you dont need to thrash the living hell of the engine etc..

The engine is good but it still inherits the previous Waja problem such as power windows because still using the old chasis. My driver side window drop and break during the 2nd week of ownership, but claim warranty.

my ISO consultant who uses WAJA CPS told me that the quality improved during WAJA Enhanced...but kinda drop back when the CPS version was launched...