4G91 Gang..

naked racer

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Senior Member
Feb 26, 2010
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south australia
your rite on that but my problem is i need the timing done and i cant do that without the workshop manual. everywere i go they tell me they have never herd about a 4g91 only 4g15-92-93 even the mitsubishi head office doesnt know. im realy stuck on this i dont know what to do. as soon as i get a workshop manual or someone that knows about my motor i can move on to other things that need to be fixed but i have to get the harder things out of the way first. is there anyone else on here with the 4g91 carb motor

p.s. sorry for making you read so much lol
 

azrin95

Known Member
Senior Member
Jul 11, 2008
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differ on d road? meaning u can beat those other 91 with higher HP on d road?? higher torque?? :confused:
always though high HP means = better.hahaha

Yup, higher torque....

Thanks alvin.....
 
Last edited:

ACQ2305

500 RPM
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May 25, 2007
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your rite on that but my problem is i need the timing done and i cant do that without the workshop manual. everywere i go they tell me they have never herd about a 4g91 only 4g15-92-93 even the mitsubishi head office doesnt know. im realy stuck on this i dont know what to do. as soon as i get a workshop manual or someone that knows about my motor i can move on to other things that need to be fixed but i have to get the harder things out of the way first. is there anyone else on here with the 4g91 carb motor

p.s. sorry for making you read so much lol
i dont know about you,but try looking 4 those old school mechanics..i mean those mechanic that reply purely on experience and knowledge..the time where computers/gadgets have not yet existed. Coz most new mechanic only knows how to plug in the diagnose machine thingy, or read the manual to get things done..shows that they dont really know what they are doing yet..But with newer cars nowadays,cant blame them for using these stuff though..
 

ayell

500 RPM
Senior Member
Jun 18, 2004
808
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Segamat JHR
i'm here.. hehehehe
 

alvin24

3,000 RPM
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Nov 14, 2003
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the rest all not around di ah? or waiting for weekday masuk office only login spend some time in ZTH? hahahaha...
 

ACQ2305

500 RPM
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May 25, 2007
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still here... hhehee.. not much to talk about ody...
 

ayell

500 RPM
Senior Member
Jun 18, 2004
808
4
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Segamat JHR
Heyy ACQ how are you doin? I was in Miri last week, but my schedule is pack, can't get time to yumcha with you.
 

ACQ2305

500 RPM
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May 25, 2007
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hey ayell,..have been good..not much change since the last time though..hahaha..just started working,so now can slowly plan what i wana do nxt..in terms of mods..hehehe..but also thinking of getting an EG4 with a B18Cr... 91 maybe daily use..will c...
was also very bz last month,only now abit more relax..just let me knw if ur in miri again aite..
 

chromeless1

Known Member
Senior Member
Jan 11, 2007
187
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hi guys...im new here & just plonk in 4g91 engine...and old engine actually...
hehehe..nice meeting u guys..been reading earlier post of this thread but didnt keep on track much coz at that time..still 4g15..ehehe...anywy...this engine is good..pickup is better...
and from reviews..i was amaze with the fc..but it turns out mine was not up to the par from other forumers..is ah yoong (i forgot the mech's name..is correct?) still there? been thinking of going to see him to check what's wrong with my engine...apart from tb prob..fc is about 9km/litre..worse then my previous 4g15..hehe..mind to share guys..ive change my plug&cables,engine oil is eneos 10-40,extractor right now using gti's..and the exhaust note sometimes like misfiring...anyone can help?
 

ACQ2305

500 RPM
Senior Member
May 25, 2007
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hey bro,..ermmmm...how heavy is ur right foot??? if ur driving style is ok,maybe tuning is not properly dne up?? mine,i'm getting around 200km from rm30.. R97..that is with light foot driving most of the time..heheheh...rolling on 17in though...
 

chromeless1

Known Member
Senior Member
Jan 11, 2007
187
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wow!even on 17s u can get that kind of fc?hehe..well ive done both spiritd&light footd drivng,but more or less gettng the same fc.where u guys go to tune ur ride?wantd to go,but dont know where to go..mind to share!
 

kunz

Junior Member
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Nov 16, 2006
19
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hey there.. its been a while since ive logged in... wow.. still can see people semangat with mods.. i gave up d after buying a new car. 91 is still at home though..

yo alvin,
what happen to PH lar? forum tutup also?
 

fstr

7,000 RPM
Helmet Clan
Senior Member
Apr 19, 2004
7,934
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Sahara Desert
hey there.. its been a while since ive logged in... wow.. still can see people semangat with mods.. i gave up d after buying a new car. 91 is still at home though..

yo alvin,
what happen to PH lar? forum tutup also?
chap lap liow laa macha :biggrin:
 

alvin24

3,000 RPM
Senior Member
Nov 14, 2003
3,109
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LoLz... all the PH oldtimers all retired adi... plus nobody to take over the club, so tutup lorh... whut else can we do? LoLz...
 

skylee834

Known Member
Senior Member
Feb 8, 2008
330
4
1,518
after change out my clutch,my 4G91 FC now become better,RM40 ROn 97 can go thru 300km....
 

ACQ2305

500 RPM
Senior Member
May 25, 2007
984
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what clutch r u using?? can we use 8.5in?? F5m21 GB....ok ka??
 

chromeless1

Known Member
Senior Member
Jan 11, 2007
187
3
1,518
hm..nice fc u got there...
mine still got about 10km/litre for city driving...
still bugging me..dunno whats wrong...even with light pedal driving..
guys..still got contact of the mech who is good in 4g91 before this?
wanna try to see him to have a look if possible...
 

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TEST CAR FITTED WITH POWERZONE PRODUCTS


Test Vehicle
Car Regn. No: WHF 577
Make/Model: PROTON Wira 1.3GLi Aeroback
Year Manufactured: 1999

Engine Fitted

Engine Type: Mitsubishi/Proton 4G15 SOHC
Engine Capacity: 1468 c.c.

Engine Modifications

Camshaft: PowerZone high performance road formula cam (reprofiled from original camshaft)...
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