4G93 Modifications

[syimirmazlan]

Just bought a skunk2 intake manifold and fixed on my 4G93.
Also fixed ficd for the air-cond idle timing.

However, when the air-cond is on, my idle timing sounds as if i have high cams on.
Where as if i off the air-cond, my idle becomes normal.
And, with or without air-cond on, when i start driving, it turns back to normal.

Is this normal or what?
My mechanic is asking to come back for another visit to check on the air/fuel flow and is concerned that my fuel might not be sufficient on the high rpm section.

Anyone has installed a skunk2 intake manifold on a 4G93?
The rpm is much lighter and responsive now though but i'm shifing at 5k rpm now, to be safe before future investigate. Hehehe

wait, did u get the skunk2 intake which is made for 4g93?from what i know there is no skunk2 for 4g93, there are only for b16, b18 but u can mod the intake flange to fit the 4g9x engine.

and yes, if u use mivec tb the size is 60mm, while the intake is 70mm, its ok, but u wont unleash the full potential of the skunk2 intake. but i think it is sufficient for ur current engine setup.

 

[croydon]

4G93 mivec head 200hp

https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/550480_509211285774265_1885424285_n.jpg

4G93 Mivec 236hp

block 4G93 CP piston + forged 4G93 rods + 4G93 crank
JUN 304 type 2
intake skunk2 + racing air box
ekzoz 4-1 + Megaphone
RBP super single racing clutch
microtech lt-10s + x4 + msd twin tower
ACL race bearing

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash4/384201_499743333387727_1881218965_n.jpg

 

[NoobCity]

wait, did u get the skunk2 intake which is made for 4g93?from what i know there is no skunk2 for 4g93, there are only for b16, b18 but u can mod the intake flange to fit the 4g9x engine.

and yes, if u use mivec tb the size is 60mm, while the intake is 70mm, its ok, but u wont unleash the full potential of the skunk2 intake. but i think it is sufficient for ur current engine setup.

Actually there is a replica skunk2 made for 4G93, almost plug & play but there's a few misplacement for the screws on the fuel rail which can also be customized. My mechanic did a great job for the little misplacement and it was good to go.

However, when I'm idling with air-cond, my air/fuel ratio is 19.9 =.="
But when I'm throttling, it goes to 13, which is alright. Idling is a bit off, that's all.

Croydon, shit man that's 1 little monster there. On top of that, Millennium Motorsports' dyno is pretty heavy right! Yet you could pull out that HP! Awesome shit :wavey:
How much is the mivec head by the way? hehehe

cheers!

 

[ya_aluya]

How much is the mivec head by the way? hehehe

cheers!

Try call this guy :
http://www.mudah.my/Mivec+head+complete+top+set+with+emanage+blue-18309768.htm

trade-in with ur 93 head and add 4k..hehe

 

[NoobCity]

aduihhh

must top up so much? =.=

 

[syimirmazlan]

aduihhh

must top up so much? =.=

so pening kepala...the price of parts are now crazy expensive...they play a lot with pricing...honda and toyota parts are lot cheaper...

 

[virqai]

so pening kepala...the price of parts are now crazy expensive...they play a lot with pricing...honda and toyota parts are lot cheaper...

oh ya..no wonder la so many request me vtec set mounting kits for proton now day...hemm:hmmmm:

 

[croydon]

http://www.mudah.my/Head+Mitsubishi+MIVEC+4G92+CA4A-17889518.htm

http://www.mudah.my/Head+mivec+complete-17586151.htm

mivec head around rm2k, 4G93 DOHC head around rm1k, many 4G92 SOHC, 4G93 SOHC, waja 4G18 can use 4G93 DOHC head to convert from SOHC to DOHC...

 

[NoobCity]

nice!
thanks for the links Croydon!
cheers!

 

[thor03]

I used........

standard cam..
acp.
82mm bore block.
piston 1.6 with valve pocket.
emanage.
not used lcp.
injector 275cc.
intake gsr.
t.body v6 60mm.
acl bearing.
g/box 1.8.
metal gasket 0.8.
pnp.
cusco replica 4-2-1.
head and block cut 0.4mm.

dyno get 138whp........ i'm satisfied with that, even people said not so much. ha ha ha....
by the way i have final ratio mivec but did not used it because afraid of the fuel consumption, what do u guys thing if i put to my gb. Now my fuel tank can get 520-550km , what if i using this 4.6 mivec ratio? how far can I go, some said I will lost around 50km......

---------- Post added at 09:56 AM ---------- 6 hour anti-bump limit - Previous post was at 09:48 AM ----------

by the way noobcity... u said that u used skunk2 replica right, is it with standard cam? do feel u lost power at any range..... last time i also want to put this replica and super 90 t/b but my foreman said it's must used with high cam if not will lost the pwr......

 

[NoobCity]

hey thor, i'm currently running with standard cam.
i had improvements on the low-end rpm. haven't really felt any power loss yet.

going for dyno this weekend tho.
:) will find out soon...

 

[thor03]

let us know how much ur hp increase under the hood ha ha ha....

 

[andy94]

i need some ideas for some mods for my lancer with a 4g93 non turbo im not lookin to turbo it yet so any mods other than that will be really ...

 

[syimirmazlan]

i need some ideas for some mods for my lancer with a 4g93 non turbo im not lookin to turbo it yet so any mods other than that will be really ...

high duration cam, fast spec 272, or 288, a pair of adj cam pulley, high comp piston (mivec is sufficient), skunk2 intake (modified the flange) or gsr intake with larger throttle body (60mm), engine management system, powerzone/rpw/hotbits extractor...and aftermarket drop in air filter ( dont need for open pod)..with these i think u will have a very powerful 4g93, or if u can source a complete mivec head, it will be better...the power is a lil bit less than stock 4g93 turbo if tuned well...

 

[MivecN/a]

Hi guys,

I wanna let go my mivec head soonest possible! Do let me know if you have a friend who wanted the head. Do PM me. Thanks

 

[NoobCity]

will pass the message around bro!

 

[MivecN/a]

thanks dude!

will pass the message around bro!

 

[Wanggot]

Good reference for my next project...

 

[sord87]

 

[boyzone]

Yes?