Proton 4G13/4G15....Satria/Wira/Saga
- Thread starter azrin95
- Start date
yeah thanks skywalker.. my next upgrade i had in mind was flywheel hah then slowly next next next. heh
walau.. got many info lah u, skywalker.. nice.. tq.. now i know on the s flow etc.. im using it.. but i dont know wat size is it.. i think my top speed is restricted by the small size of the inlet.. huhu.. tq so muchh..
wah bro.. you are reli helpful.. thanks!!!i'd say performance gained using 1.6 clutch from a 1.3L engine aint much... hence, i would suggest u to go for lightened flywheel but maintain using 1.3L clutch...
clutch surface area of grip will only comes into effect when ur engine is producing power which ur 1.3L clutch cannot handle and began to slip... if its not slipping by anyhow u trash it, its useless using bigger clutch...
by lightening the angular momentum of ur rotating crank (this includes crankshaft, flywheel, clutch, crankpulley), ur engine is able to rev up faster... this increases acceleration, but with the downside of losing top speed... because the lower inertia means lower momentum... hence, lower energy stored in ur rotating crank, u will need more power to get it spinning continuously...
yeap... if ur car has catcon, remove it and replace with midbullet... if ur oem exhaust piping has a restrictive midbox, replace it with a freeflow midbullet... (old saga iswara does not have catcon, but it does have a midbox)...
left is s-flow muffler... right is straight flow muffler... as u can see, s-flow is more restrictive compare to straight flow muffler... restrictiveness means good in sound dampening... which means s-flow muffler will emit less noise compare to straight flow muffler.... another tip, auto transmission better use s-flow to hold the backpressure... manual tranny can use either s-flow or straight flow muffler...
if inlet diameter too big, ur exhaust will lose too much backpressure... this is bad for low end torque... hence, for 1.5L NA engine and below, it is best to keep the inlet muffler approx 2.0"... outlet tip mostly for cosmetic purpose... if dont wanna attract too much attention from abang jaypeejay, dont use too big lo....
as for adj campulley, u can adjust the cam timing advance/retard... for SOHC engine, u can adjust the cam timing for better acceleration OR top speed... or in other words, better low end torque or better mid-high rpm power.... or in other words also, shifting the powerband...
if jz change adj campulley for SOHC engine, it has minor performance gain as i said, u only play with the powerband... thats why adj campulley best paired with high profile camshaft... higher profile camshaft gives good mid-high rpm gain, but loose abit of low end torque... but adjusting the cam timing, u can bring the powerband lower so u dont sacrifice too much low end torque and have the powerband at an achievable rev range... no point having the powerband way above 7k rpm when ur engine internals cannot handle it rite??...
bro wanna ask wat if inlet diameter too small? any bad effects?
bro my engiine 4g13 already got adj cam pulley and racing camshaft. when i first installed i also noticed slight drop in low end torque but gain in mid rpm power. but tat guy at the workshop din ask me wat i prefered. he juz turned a few nuts on the pulley and tat was it. so if i wanna adj it 4 low end torque tat means i should go to a foreman and tel him wat i wan? then is it tat the foreman has to do calculations or something?
bro if remove catcon not bad 4 environment? is exhaust mod reli neccessary 4 my car? wil it reli improve power bro? thanks so much..
inlet diameter too small, exhaust flow restrictive... mid-high rpm gain not much... in other words, high rpm feels ketat...
removing catcon is bad for environment... if u love it, dont remove lo... haha...
exhaust mod is not necessary... but to maximize the performance, it is needed...
Juz change to another original 1.3/1.5 exedy clutch kit if the current 1 is about to times up...send your flywheel for 500gram skimming ...Nice enough to rev for your 1.3 Efi engine ...
... Its not necessary for a 1.3 engine go for a 1.6 clutch modification ....In additional ...its 2kg heavier compare to stock...even if you skim off your flywheel for 900gram which is quite the maximum for it ....can't really skim more than that ...overall ...the weight is still 1kg heavier ...In the end ..what you get is better grip each time you engaged your gear ...Improved pick up ? I would say ..not big differents ...its juz that the grip feeling that makes you think that your pick up is improved ..but the speed and tourqe is still the same ...So my advice is ...if there's a cheaper option and its the right way to mod it ..why not go for it rather than spending so much in the end ? well ..juz my 2 cents ;)hi guys,
need some advice from 4G15 sifus here.
whats the fuel consumption like for a stock to the bone 4G15 carb manual on iswara sedan body? i got the shock of my life when i found out that my iswara is only able to travel 180km for 33L of petrol (Ron95). all city driving driven by an old man (not speeding at all).
the engine just had top overhaul 2 years ago. no white smoke at all.
funny thing is, when i throttle about 40%, there is a lot of black smoke puffing out from the exhaust and if this continues for 5seconds or so, the engine would jerk (as though there is too much fuel clogging up the plugs)
can anyone help?
need some advice from 4G15 sifus here.
whats the fuel consumption like for a stock to the bone 4G15 carb manual on iswara sedan body? i got the shock of my life when i found out that my iswara is only able to travel 180km for 33L of petrol (Ron95). all city driving driven by an old man (not speeding at all).
the engine just had top overhaul 2 years ago. no white smoke at all.
funny thing is, when i throttle about 40%, there is a lot of black smoke puffing out from the exhaust and if this continues for 5seconds or so, the engine would jerk (as though there is too much fuel clogging up the plugs)
can anyone help?
I guess you need to retune back your carbie ...pm Fstrader for more info ...this unker bawah pokok is very profesional in tuning carbie engines...
When you start modding for all sorts of power at all ranges, I don't think you care much for FC anymore. But last time I asked him he said his one still the same as stock or better depending on how heavy his right foot was.
very hah. but i've nvr filled my 4g13 with 70 bucks. mine 50+ or 60 buck for 280-320km depending on how i drive.
Hi again,
Wow...you guys seriously can afford that kind of consumption?
Even a stock VR4 can do 300km with [email protected]/L.
Is it possible to hit 400km/33L of fuel for 4G15 carb manual??
Wow...you guys seriously can afford that kind of consumption?
Even a stock VR4 can do 300km with [email protected]/L.
Is it possible to hit 400km/33L of fuel for 4G15 carb manual??
walau.. 4g13p same fuel as vr4? turbo.. headache.. ahahhaaa.. better used a vr4, but no mode.. hehehee..
klywh1,
Is yours injection or carbie? I don't think gearbox would make THAT much difference unless u always cruise high speed :D
series5401,
Yeah I was shocked too. Bloody underpowered engine but drinks petrol like hell :(
So anyone here managed to squeeze above 400km/33L from your 4G15 carbie please share some tips. ;)
Is yours injection or carbie? I don't think gearbox would make THAT much difference unless u always cruise high speed :D
series5401,
Yeah I was shocked too. Bloody underpowered engine but drinks petrol like hell :(
So anyone here managed to squeeze above 400km/33L from your 4G15 carbie please share some tips. ;)
next week, ill fuel up full tank and see.. can i manage to go for 400.. try not to press hard.. well, as im in campus, need to use 2nd and 3rd gear, coz many bumps in here.. dats why i think can manage to go more than 400km.. hahaha.. trying again next week..
below average... not to say very bad... depending on where u drive and how u drive... last time i drive around melaka and neighbourhood also get around that figure...
now worse adi...
his foot quite heavy one wor...
When you start modding for all sorts of power at all ranges, I don't think you care much for FC anymore. But last time I asked him he said his one still the same as stock or better depending on how heavy his right foot was.
i want ur 1.8 gearbox ahhh... if blast highway 3 hours i can save quarter tank of petrol i guess...my stocknia 1 full tank 420km to 450km after 1.8 GB mod I think better haha
possible on highway... around town, make sure ur foot aint heavy...
if i calculate it, 400 is equal to rm80.. hoe......
trying next week.. no revving..
lighten my right foot..
headache2..
hahahaaaaaa..
bro sky, u havent update your blog?/
wondering wat do u do with your car now..
eheheee..
Skywalker,
Is it possible to dry up 33L of petrol for 4G15 carbie around town use? say if u rev like crazy (not saying that I do) provided not hill attacks. strictly town use.
I'm shocked. Its worse than a typical 2L turbo consumption.
Any tips you can share to improve mileage?
Izso,
No point modding this car. Its for my work to fetch my tools :(
Shinjite,
Underpowered engine but drinking MUCH more fuel than a much more powerful engine makes sense to u? :o
Is it possible to dry up 33L of petrol for 4G15 carbie around town use? say if u rev like crazy (not saying that I do) provided not hill attacks. strictly town use.
I'm shocked. Its worse than a typical 2L turbo consumption.
Any tips you can share to improve mileage?
Izso,
No point modding this car. Its for my work to fetch my tools :(
Shinjite,
Underpowered engine but drinking MUCH more fuel than a much more powerful engine makes sense to u? :o
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