4G93T Club

[ftzone]

gyus can recommend any performance cams for 4g93 dohc..non turbo...not sure the exact code..currently in my putra...swap engine with 4g93 from japan halfcut...

You can try Duratech camshafts with 272deg and 10.8mm lift. Not too harsh yet nice mid-range torque and power. Duratech cam profile is a copy of the previous JUN Spec. It comes with valve springs too. Price MYR2400.00 only. Can use for daily ride.

If you want wilder camshafts you can consider TOMEI Procams. 304deg or 318deg with 11mm lift. These are hot cams and idling is not so good. However, mid to redline power sure you can feel.
Price with valve springs MYR3050.00 (recommended for racing and spirited driving)

Call me if you are ready for camshafts! 0164786000

Wira3319,
If your budget limited go for brand new HWL coilovers la... MYR1380 only one set. Summore got 1 year warranty. Why risk the MYR750 for a used unit if the condition unknown? Repair and modification cost more later...

 

[wira3319]

what kind of performance abs is that? 750 pretty expensive bro, top up a little bit can buy hwl or gab 2nd hand already

owh ok..will look into that..hehe..

Bro ftzone you got PM..thank you..

 

[contreasjun27]

You can try Duratech camshafts with 272deg and 10.8mm lift. Not too harsh yet nice mid-range torque and power. Duratech cam profile is a copy of the previous JUN Spec. It comes with valve springs too. Price MYR2400.00 only. Can use for daily ride.

If you want wilder camshafts you can consider TOMEI Procams. 304deg or 318deg with 11mm lift. These are hot cams and idling is not so good. However, mid to redline power sure you can feel.
Price with valve springs MYR3050.00 (recommended for racing and spirited driving)

Call me if you are ready for camshafts! 0164786000

Wira3319,
If your budget limited go for brand new HWL coilovers la... MYR1380 only one set. Summore got 1 year warranty. Why risk the MYR750 for a used unit if the condition unknown? Repair and modification cost more later...

duratech camshaft sound so delicious man sob sob too bad no money for that sigh...

 

[ylkien]

halo all sifus,

my engine also makan engine oil like crazy, no leakage whatsoever when i look undercarriage.
Sometimes when idle got lotsa white smoke coming out of the exhaust. when full on throttle also got white/greyish smoke come out.
when full on throttle sometimes car jerking also.

what does this mean??
any help would be appreciated. :)

I would suspect the piston head. A compression test is fast, easy, and cheap. Make sure the mechanic cranks the engine for 5 to 10 times to get the reading.

If not, then only check the turbo unit, as it needs more work to check that.

By the way, just check whether there is any oil below the aircon compressor, as engine oil might leak out from the oil cooler (& drips down onto the aircon compressor).

 

[nuex_nuex]

sqv rm100 contact me.. 0176703536
nuex-garage.blogspot.com hehe

 

[contreasjun27]

Damn this thread becoming so dead

 

[nuex_nuex]

hehe cannot dead laa.. so many people are using gsr/evo outs there

 

[contreasjun27]

hehe cannot dead laa.. so many people are using gsr/evo outs there

well is been very quiet for these few weeks already haha
i guess ppl stop modifying their GSR already keke

 

[nuex_nuex]

same to me.. u see my hp just 5 only.. hehe.. try search image @ google.. "wira gsr" "wira evo" .. so many pic .. hehe

 

[monaro]

as i remember 3 months ago i did top overhaul, they sandblasted the piston surface clean it all and change to metal head gasket. so its not possible that the piston cracked if they noticed they would tell me. so the problem is maybe the turbo, ill check it myself first if i have the time and probably will do compression test too afterward. anyway since i transplanted the engine in 2006 i never serviced the turbo. so maybe its about time :)

thanks for your help chriss really appreciated it.

p/s: if u have any recommended workshop (or maybe ur shop) do tell me. cheers.

u are welcome,u got pm~

Hi Sifus,

Recently my 93T is having syptoms very much like AndyDemarco described. Coincidentally, the engine was also overhauled recently, during last May. So when the engine started to "minum" engine oil like coca-cola, I know something is not right. However, mine don't produce white smoke when idling, only when I step on it, it gets bad. Just like Andy, I can feel the pick-up is a lil bit jerky around the 2800/3000 rpm range. BTW, i'm running on very low boost, 0.6 bar. So do Sifus think that I have a bad turbine as well or this is something else?

Another thing, my tappets sound get VERY loud when my engine oil level reach half full (due to the makan oil problem). I mean VERY LOUD... like a tractor or something. Any way to solve this problem?

BTW, any recommended workshop that is reliable(know about turbo la) and reasonable.... coz until now, I've been servicing it at a normal workshop (Coz, I only got this car last Oct)

Thank you, all sifus and bros!

 

[Zwartch]

Hello to all the GSR sifu's...:wavey:

just got my hand's on a 4G93T waja recently..
asked my mechanic and ahe said my fuel is too rich..That means my fuel ratio is too high right?
He said i may need to get a new fuel pump then tune my ECU..(im using an external fuel tank right now)
Im also using e-manage blue..

I'm also having a problem of my sparkplug being black(soot)...

Any suggestion guy's?

 

[chrissyong]

Hi Sifus,

Recently my 93T is having syptoms very much like AndyDemarco described. Coincidentally, the engine was also overhauled recently, during last May. So when the engine started to "minum" engine oil like coca-cola, I know something is not right. However, mine don't produce white smoke when idling, only when I step on it, it gets bad. Just like Andy, I can feel the pick-up is a lil bit jerky around the 2800/3000 rpm range. BTW, i'm running on very low boost, 0.6 bar. So do Sifus think that I have a bad turbine as well or this is something else?

Another thing, my tappets sound get VERY loud when my engine oil level reach half full (due to the makan oil problem). I mean VERY LOUD... like a tractor or something. Any way to solve this problem?

BTW, any recommended workshop that is reliable(know about turbo la) and reasonable.... coz until now, I've been servicing it at a normal workshop (Coz, I only got this car last Oct)

Thank you, all sifus and bros!

don call me sifu please,i still not sifu,i still learning now day the new tech every day will got,when can learn all,but i don mind to share my exp,if u said don got white smoke from muffler is okay,then u better open your turbo compressor inlet see the fin got leak or not?if still don have also nvm,some turbo car or hi hp car when hi rev the engine oil will be leak from the engine oil breath hole hose,if your engine internal clearance not good also will like that,leak from piston ring,or also can check your turbine oil return oil sump hose got leak or not,the 4g93 hydraulic is always like that engine dirty or old already the clearance too much will become like that,u can try change your engine oil,if is the same then must change the new hydraulic,any detail can give me a call,i will glad if get your phone call,0122787675 chrissyong thank u and good luck ~

---------- Post added at 04:36 AM ---------- 6 hour anti-bump limit - Previous post was at 04:26 AM ----------

[/COLOR]

Hello to all the GSR sifu's...:wavey:

just got my hand's on a 4G93T waja recently..
asked my mechanic and ahe said my fuel is too rich..That means my fuel ratio is too high right?
He said i may need to get a new fuel pump then tune my ECU..(im using an external fuel tank right now)
Im also using e-manage blue..

I'm also having a problem of my sparkplug being black(soot)...

Any suggestion guy's?

i must let u know one thing turbo fuel rich is good thing at least that never harm your engine,cause the fuel is let your piston cool down after compress and initial fire,it can use your piggy back ecu or stand alone ecu reduce your a/f ratio become 11or 12 a/f ratio deepend of what kind fuel or tuner,no point to change low pressure fuel pump..

 

[ylkien]

Hi Sifus,

Recently my 93T is having syptoms very much like AndyDemarco described. Coincidentally, the engine was also overhauled recently, during last May. So when the engine started to "minum" engine oil like coca-cola, I know something is not right. However, mine don't produce white smoke when idling, only when I step on it, it gets bad. Just like Andy, I can feel the pick-up is a lil bit jerky around the 2800/3000 rpm range. BTW, i'm running on very low boost, 0.6 bar. So do Sifus think that I have a bad turbine as well or this is something else?

Another thing, my tappets sound get VERY loud when my engine oil level reach half full (due to the makan oil problem). I mean VERY LOUD... like a tractor or something. Any way to solve this problem?

BTW, any recommended workshop that is reliable(know about turbo la) and reasonable.... coz until now, I've been servicing it at a normal workshop (Coz, I only got this car last Oct)

Thank you, all sifus and bros!

1) White Smoke
I'm guessing that when u say "Step on it", it is >5k rpm...
if that's the case, then most likely turbo needs an overhaul.
I heard there is a good place in KL (i think it is called Mat Turbo) to fix it. Check this forums.
If not, i think i have a downloaded pdf DIY for the 4g93 turbo unit.

2) Tappet
Yea, mine too. If the engine oil is too low, the tappets start to sound (good warning system yea!!!)

3) Jerkiness
Mine had that same problem, especially when I rev past 3.5k rpm
Problem solved after I changed my spark plugs to Iridium IK22.

Hello to all the GSR sifu's...:wavey:

just got my hand's on a 4G93T waja recently..
asked my mechanic and ahe said my fuel is too rich..That means my fuel ratio is too high right?
He said i may need to get a new fuel pump then tune my ECU..(im using an external fuel tank right now)
Im also using e-manage blue..

I'm also having a problem of my sparkplug being black(soot)...

Any suggestion guy's?

I agree with Chris. Rich is safer, as it cools the piston chamber down.
U need the O2 sensor (which usually doesn't come with half-cut) on the exhaust to ensure correct fuel mixture. I didn't add it for mine cause I'm ok with my FC, which is currently ~12km/l (80% highway, hard driving).

 

[muskasim]

ylkien, how come the halfcut without the o2 sensor? is there any reason people take out the o2 sensor from the halfcut?

 

[[H] [K] [S]]

Hi Sifus,

Recently my 93T is having syptoms very much like AndyDemarco described. Coincidentally, the engine was also overhauled recently, during last May. So when the engine started to "minum" engine oil like coca-cola, I know something is not right. However, mine don't produce white smoke when idling, only when I step on it, it gets bad. Just like Andy, I can feel the pick-up is a lil bit jerky around the 2800/3000 rpm range. BTW, i'm running on very low boost, 0.6 bar. So do Sifus think that I have a bad turbine as well or this is something else?

Another thing, my tappets sound get VERY loud when my engine oil level reach half full (due to the makan oil problem). I mean VERY LOUD... like a tractor or something. Any way to solve this problem?

BTW, any recommended workshop that is reliable(know about turbo la) and reasonable.... coz until now, I've been servicing it at a normal workshop (Coz, I only got this car last Oct)

Thank you, all sifus and bros!

Aiyak! Keta kuat got prob meh?!