Proton 4G13/4G15....Satria/Wira/Saga

[klywh1]

Hai I am new here, SIfuuuuu Guan nice to see u here 4g15NIA

 

[DonJuanDeMarco]

u can use charade gtti piston , swift sport piston both forge

 

[khguan]

aiyah, guan sifu..try put in bigger injector..sometimes tb no problem, fuel not enough only..
genting drive ka? frequent that one, but solo..very dangerous to convoy and test power at same time..involves other innocent life too..(learnt a lesson from the waja twin turbo video..anyway, let's just leave that kid alone..as one community, i believe there's nothing wrong to tegur each other, maybe that kid will be a better and safer driver after this..)

p/s: of all the campros i tapau, i have never tapau 1.6 satria neo campro..damn fast la that one..pocket rocket

well... fuel not enough huh??

hmm.. the last time i dyno.. the fuel ratio is on the lean side.. but drives quite well... no starvation at high rpm too... in that case.. i think i will try adjusting my AFPR..

now my car sometimes semput at low rpm... like this.. when i rev no problem.. then i let go the throttle.. then rev again.. got jerking... very weird...

i already replaced the distributor n plug cable.. thinking to fine tune my TB again..


about genting.. we are quite safe when we drive.. if among us who always go up.. there will be no problems on safety... if got new ppl come with us.. then we will be even more careful with the new friends.

 

[afmarsyal]

guan ifu, last time my friend got such problem..nothng wrong with the ISC only throttle body need cleaning..but in your case, i think you got the answer already..because i think if not mistaken, you've posted one article regarding narrow band and wide band air fuel ratio during low - mid - hi rpm..this one is from about how to adjust the apexi turbo timer..during low rpm, should be rich a bit, and mid rpm quite lean and very rich during hi rpm..try to confirm and suite this figure first in your setup..maybe eliminate your tb problem..after all you the sifu.. :) i'm end user and a frequent patron to under tree wshop only.. :)

 

[khguan]

well.. this morning i found out that my FPR the fuel pressure increased a bit.. set back to 40psi.. the car accelerates smoother.. but the problem still there..

i think the TB is really giving problems... going to fine tune the TB slowly... might tune the TPS too....

 

[afmarsyal]

don't forget to post guan sifu..so much can learn about trouble shooting TB and FPR from you here :)

and oh, i going to climb genting this satuday evening from kuantan on my way to sungai buloh..outstation 3 weeks there..i seldom drive fast at night bcause i got rabun silau, making it more dangerous.. :P but maybe la if earlier i can come, but i drive quite slow and far la.. :)

 

[fstr]

wat happens if i set to 30 psi for auto 1.5? too lean??

 

[biz-da-tech]

well my friends saw my 4g13p... on 42 psi.. not high rev also exhaust got fire :p

and now i set to 35 psi.. dunnno is it too much ?

Bump: well my friends saw my 4g13p... on 42 psi.. not high rev also exhaust got fire :p

and now i set to 35 psi.. dunnno is it too much ?

 

[chris_ch3w]

mine is 5.5kgcm2...hehehe sumthing wrong with the gauge i think

 

[khguan]

original is 38psi... usually ppl set to 40psi...

on my car 40psi.. high rev is nicer to rev.. very smooth n powerful... if go up to 42psi.. the acceleration becomes slightly more harsh... didnt try lower pressure b4..

Bump: one tip i learn from Drexchan.. based on his tuning experience with G-Tech... start from higher pressure then reduce slowly during the fuel pressure tuning... until u get the right pressure for your engine.

 

[fstr]

the lower psi it is, means return to fuel tank more maa, hence saving petrol a bit.

higher psi means ur injector sumbat more petrol hence lesser fuel getting back to fuel tank..so u get a bit higher fc.

thats wat i think laa cos i also noob

 

[khguan]

well it is true to certain extent... bcos the ECU will control the injector's duty cycle to get proper a/f ratio

 

[langsuyrx]

any recommended injector? for upgrade pupose

 

[SkYwAlKeR]

any recommended injector? for upgrade pupose

depends on how far u've modded ur engine...

 

[limking]

It's all depending on your budget .One can do wonders engine moppings with a Proton Wira since it's such a versatile car especially with Mitsu's mods .So good luck and have fun !Just remember more power ,more $$$

Bump: It's all depending on your budget .One can do wonders engine moppings with a Proton Wira since it's such a versatile car especially with Mitsu's mods .So good luck and have fun !Just remember more power ,more $$$