Siemens VS MMC

[ettm_14]

Sifoos arnd need assistance,
What are the major difference/s if I do change my siemens ECu to a MMC ECU on my 4G15??
I have one MMC injector kit in hand-if the difference not going to be alot different then it would not be worthwhile changing?
PLease enlighten me as I am new to ECU and stuffs like these!
Thanks

 

[YuHaNiSa]

before this i use satria 1.3 siemens vdo..i do basic performance + some recepy from my friend...0-100kmh 8sec and 0-400m 16sec

 

[YuHaNiSa]

so why wanna change the wiring + ecu mmc ? mmc injector are the same with siemens injector...

siemens vdo kind da like auto learn from what you mod...

siemens vdo have batter fc too my satria 1.3 rm10 can go 100kmh,also my friend car 4g15 siemens...

siemens vdo is free maintenance tuning or setting..

my friend wira 4G15 siemens with basic mod can beat gti pick-up and top speed..so so so

my 1.3 can do 190kmh

my friend 1.5 can do 200kmh

 

[YuHaNiSa]

my advice dont pnp and dont disturb crank sensor

 

[ettm_14]

i see thanks for the advice bro...good info

 

[RedD]

so why wanna change the wiring + ecu mmc ? mmc injector are the same with siemens injector...

siemens vdo kind da like auto learn from what you mod...

siemens vdo have batter fc too my satria 1.3 rm10 can go 100kmh,also my friend car 4g15 siemens...

siemens vdo is free maintenance tuning or setting..

my friend wira 4G15 siemens with basic mod can beat gti pick-up and top speed..so so so

my 1.3 can do 190kmh

my friend 1.5 can do 200kmh

bro, wat a great mod/recipe u gt for ur 1.3 man.. btw, mind share?:_:
mine can onli go 140kph n the pick-up... zzZZzzzz... cant think of wat to do... :confused_smile:

 

[seanlee]

sound like he have rebore the piston ..i guess...coz he said dun do PNP and crank sensor

 

[RedD]

hmm... i dunno bout tat.. waiting for his reply.. =p

 

[Joeker]

Changing to MMC from Siemens need lot of things.

unless you get good wireman, you need ful wiring harness from MMC system.

THe you need the intake manifold with MAF sensor, distributor, etc.

Finally the cost and work might defeat the performance gained

 

[seanlee]

agree with Joeker....

actually i do have a set of MMC injection kit with ECU ...but hte problem is i ask my mech...alot thing need change...the cost end up will be about 2k....and yet..power still the same..coz stock siemens change to stock MMC......why not use the money change the whole engine stil the same price...

But a gain MMC can play alot of thing and install alot of gauge as well...so in the end...is not worth to install it...unless ou change engine....to Dohc like 4g91,93..and otthers...

 

[kennethfong]

yuhanisa,

very impressive , i bet if u mod further for a 4g15/13 vdo/mmc u can beat GSR and Evos, mind sharing what are the 'recipes'?

 

[kennethfong]

-deleted- double post

 

[YuHaNiSa]

i see thanks for the advice bro...good info

sorry to say..i'm not man to call bro...call me big sis hehehee

 

[YuHaNiSa]

sound like he have rebore the piston ..i guess...coz he said dun do PNP and crank sensor

i dont touch the engine...

 

[YuHaNiSa]

bro, wat a great mod/recipe u gt for ur 1.3 man.. btw, mind share?:_:
mine can onli go 140kph n the pick-up... zzZZzzzz... cant think of wat to do... :confused_smile:

Sorry bro cant tell the recipe my big bro and friend will kill me they also in zth,they will read...My advice go do basic performance then you will get there...Sample 4-2-1 then must use center bullet..piping not to big just normal and small mufler suit 4g13/15,open port air filter sample hks then air ram must be custom follow the throttel body size..then the air flow sensor put near throttel body but not to near after that disconnect negative - battery after 15sec reconnect back...then start your engine at 10min but dont disturb anything or revving...

you also need to change cable plug,plug bosch super 4..if got money...some of recipe buy alfa romeo coil same as vdo

one more thing dont ever disturb valve tappet too...

 

[YuHaNiSa]

yuhanisa,

very impressive , i bet if u mod further for a 4g15/13 vdo/mmc u can beat GSR and Evos, mind sharing what are the 'recipes'?

Wahhh that too much...cannot beat GSR & EVO laa...

My big bro & friend know to mod 4G13/15 & 4G93 R3 without change to mmc wiring & ecu...

One of my big bro friend projec is satria 4G92 using doch 4G91 head with vdo wiring & ecu,got no rev cut loh...already beat modified 4G93 SOCH & DOCH ,4G67,4G63 DOCH N/A,4G92/4G93 Mivec also Vtec 1.6...

 

[YuHaNiSa]

that satria can be locate at perlis,some std body drag car are wellcome to try...our location is alor star...vdo also good...but dont waste money at micro compressor or anything at that shop...

 

[seanlee]

Sorry bro cant tell the recipe my big bro and friend will kill me they also in zth,they will read...My advice go do basic performance then you will get there...Sample 4-2-1 then must use center bullet..piping not to big just normal and small mufler suit 4g13/15,open port air filter sample hks then air ram must be custom follow the throttel body size..then the air flow sensor put near throttel body but not to near after that disconnect negative - battery after 15sec reconnect back...then start your engine at 10min but dont disturb anything or revving...

you also need to change cable plug,plug bosch super 4..if got money...some of recipe buy alfa romeo coil same as vdo

one more thing dont ever disturb valve tappet too...

this sound like MMC 2nd version for me leh....Got air flow sensor, can customize throttle body and change coil pulak..

coz siemens vdo dun have air flow sensor..only have Intake Air Temperature (IAT) Sensor with Manifold Absolute Pressure (MAP) Sensor ....if customize throttle body....you need to redo and the Throttle Position Sensor (TPS)...which you saw alot electronic and mechanism thing in the throttle body...unlike MMC throttle body...does not have any eletrical thing inside the body such as capacitor, ressitor and so on... you will found in siemens TB..

 

[seanlee]

i dont touch the engine...

i think your big bro have done it which he didn`t tell..coz

siemens vdo 4g13 which have less then 70whp......can done 8 second for 0-100m and 16 second for 0-400m.......this equal to a power of 4g93 satria r3 120whp...

which means your current car have to be more then 100whp inorder to do that...
so if you say....do not touch engine, not even single piston change.....
just only add coil increase spark ...how about mixture of fuel....if say....didn`t even adjusting fuel...your car runing super lean...which soon blow up your engine...anyway i think...is all up to your big bro to answer...i guess....coz it create my curiousity too much now...really interesting on your car modding..

 

[RedD]

Sorry bro cant tell the recipe my big bro and friend will kill me they also in zth,they will read...My advice go do basic performance then you will get there...Sample 4-2-1 then must use center bullet..piping not to big just normal and small mufler suit 4g13/15,open port air filter sample hks then air ram must be custom follow the throttel body size..then the air flow sensor put near throttel body but not to near after that disconnect negative - battery after 15sec reconnect back...then start your engine at 10min but dont disturb anything or revving...

you also need to change cable plug,plug bosch super 4..if got money...some of recipe buy alfa romeo coil same as vdo

one more thing dont ever disturb valve tappet too...

Big sis, hehe:_: ... thnx..tat would help... ermm, but sum questions ere..
bout the piping size.. if im not mistaken.. for 4g13, the piping size would be 1.5" rite? u sed normal.. meaning use bek 1.5"???
n if change spark plug.. wat kind of plug u recommend? thnx :_: