Mivec Modification

hehehe..i noe y u change bro...u wan comfort driving while fecthing chicks rite...
muhahaha..neway NA is small amount of power and the g-force almost none but
the reliability and satisfaction of modding is the one we looking for...im rite bro?:burnout:

hahahah about chics i doubt ler as i dont let any gurl sit in my modded car...sial babe..hahah
well actually i wanted a change..so mayb once i am bored with N/A di then i will try boxer engine in my car now...mayb the new subaru engine..haha..lets see what JPJ has to say then
 
hahahah about chics i doubt ler as i dont let any gurl sit in my modded car...sial babe..hahah
well actually i wanted a change..so mayb once i am bored with N/A di then i will try boxer engine in my car now...mayb the new subaru engine..haha..lets see what JPJ has to say then

aiyah..u owez cr pasal wei..hehehehe..well nvm let me noe once u
car fitted wif boxer engine wna try how it like..:driver:
 
Sorry for interrupt, need to highjack a bit,

Need some advice regarding 4G92 Mivec.
My fren juz complete install the mivec head (lock the rocker - welding) on his car, but problem is at 1st idling not stable (AF show rich - below than 11.0). After that, adjust afc 5 button type until minimum but AF show somewhere at 11.++

When take for ride, low rpm really suck. If do launching, when hantam d gas pedal then is like kosong then suddenly power only come after mid range all d way to high (like mivec engagement). Suppose when weld mati d rocker, it should run on d high lift cam rite, should not feel the sudden engagement rite? Pls enlighten.

PS: Have adj. cam pulley, adj. fuel regulator, afc, af meter, chip ecu.
 
bro,


If you lock the mivec rocker...it's not really usefull unless you launch the car at somewhere 5.5k rpm...

it's really depending on your cam shaft type / setting....

Say if you run on stock mivec cam...the intake duration was 300Degree and exhaust 285degree...from this hint we understand that the power band for this camshaft should be after 5k rpm....

If you running over Jun TypeII cam....it even worse as the duration and lift was higher....you might need to launch the car somewhere 5.5k - 6k rpm....

what you can do...i think install a better response final drive ratio....say ....4.844 or 4.9....

we have tried vtec killer cam....(it almost the same as lock the mivec rocker) thing comes in that manner....huhuhhuh....lucky we are launching the car at 7k prm with fully drag slick tyre....not forgotten the close ratio gearing....

P/S: dont advance the intake cam too much...kekekeke

Bump:
maybe can , if got big budget wanna try this project

300 hp mivec parts list : :idea:

1) custom stroker kit 2.0-2.2 cc
2) high compression ratio 15.1 and above
3) runs methanol
4) full dry sump system
5) 50 mm ITB ( 4 THROTTLE )
6) mega lift cam , duration 315-325 degree
6) fully race coating ( all parts )
7) race header ( 4-1 )

Bump: Bump: hahah bro kroolada, high cam for mivec gt discount or not, eco no good. budget less n i dream every nite the high cam. but y mat speed cam so expensive?


for serious buyer can contact me , special discount will be given

sms / call 017 6917136 :biggrin:

why matspeed regrinds cam expensive :

1) proven performance all kind of motorsport
2) the machine cost hundred thousand or less
3) :sleep::sleep::sleep::sleep::sleep:



Kekekeke....let me know if you need the mivec/4g93 stroker motor...93mm over stock block height...piston and conrod ....as per you requirements....


Alloy...or forged stell rod...

low silicon alloy or nickel piston....

not forgotten the custom oil pump gear....for 10k rpm revving safety...
 
mivec is for two stage rev, 1st stage is for normal driving, safe fuel, gd torque and idling stable. 2nd stage is for high rev to let engine to run higher rpm with steady torque, RPM x torque = HP. tis is y ppl create VTEC n MIVEC. if u dun wan run 1st stage n only wan running in high rev, y dun jz put normal DOHC head? wen a mivec engine only run in 2nd stage cam, is oni like 1st gen CamPro engine which is sudden torque appearing in mid rpm. so pls dun waste the mivec head anymore

Bump: mivec is for two stage rev, 1st stage is for normal driving, safe fuel, gd torque and idling stable. 2nd stage is for high rev to let engine to run higher rpm with steady torque, RPM x torque = HP. tis is y ppl create VTEC n MIVEC. if u dun wan run 1st stage n only wan running in high rev, y dun jz put normal DOHC head? wen a mivec engine only run in 2nd stage cam, is oni like 1st gen CamPro engine which is sudden torque appearing in mid rpm. so pls dun waste the mivec head anymore

Bump: mivec is for two stage rev, 1st stage is for normal driving, safe fuel, gd torque and idling stable. 2nd stage is for high rev to let engine to run higher rpm with steady torque, RPM x torque = HP. tis is y ppl create VTEC n MIVEC. if u dun wan run 1st stage n only wan running in high rev, y dun jz put normal DOHC head? wen a mivec engine only run in 2nd stage cam, is oni like 1st gen CamPro engine which is sudden torque appearing in mid rpm. so pls dun waste the mivec head anymore
 
bro,


If you lock the mivec rocker...it's not really usefull unless you launch the car at somewhere 5.5k rpm...

it's really depending on your cam shaft type / setting....

Say if you run on stock mivec cam...the intake duration was 300Degree and exhaust 285degree...from this hint we understand that the power band for this camshaft should be after 5k rpm....

If you running over Jun TypeII cam....it even worse as the duration and lift was higher....you might need to launch the car somewhere 5.5k - 6k rpm....

what you can do...i think install a better response final drive ratio....say ....4.844 or 4.9....

we have tried vtec killer cam....(it almost the same as lock the mivec rocker) thing comes in that manner....huhuhhuh....lucky we are launching the car at 7k prm with fully drag slick tyre....not forgotten the close ratio gearing....

P/S: dont advance the intake cam too much...kekekeke


From your point of view, is there any improvement can be made other than u mention above in-order to get slightly better low end power..:listen:

My fren is using the stock mivec cam. Wan to ask, advance intake cam mean adjust the cam open earlier or later? or i'm totally mess up? pls advice:adore:
 
all my frenz playing turbo so now kena poison by them and they r getting faster and faster. even high cam & 4 trottle also kenot catch up them..haihz:bawling:

planing to swap in evo..bro u still keeping the diesel crank, bearing, 1.8 kastam paper?
 
all my frenz playing turbo so now kena poison by them and they r getting faster and faster. even high cam & 4 trottle also kenot catch up them..haihz:bawling:

planing to swap in evo..bro u still keeping the diesel crank, bearing, 1.8 kastam paper?

yeah i still have it....why straight wana play stroker...hehehe not bad..u siap your evo..then come test power with me
 
why do ppl lock the mivec rocker n use only the high cam lobe? confius:confused::confused:
 
From your point of view, is there any improvement can be made other than u mention above in-order to get slightly better low end power..:listen:

My fren is using the stock mivec cam. Wan to ask, advance intake cam mean adjust the cam open earlier or later? or i'm totally mess up? pls advice:adore:
[/quote]



bro...the reason we use the killer cam is to counter the metal head gasket problem...if you're running very high compression 15.5:1 to 17:1 for variable valve car....seriously you will kill the gasket...

from that angle only we doing that....if low compression car i think you should let the mivec low cam fuctioning....


Advance cam mean....make it open earlier....but be carefull of cam setting....as the cam pulley center is for mivec 1.6....
 
hai bro .
why only use high lift cam only . use both as normal la . using high lobe at low rpm speed are wasted . no tork . if u plan using single acting cam just use mat speed cam or high cam for non variable one la bro .:burnout:

Bump: hai bro .
why only use high lift cam only . use both as normal la . using high lobe at low rpm speed are wasted . no tork . if u plan using single acting cam just use mat speed cam or high cam for non variable one la bro .:burnout:
 
which type of piggyback is more suitable for mivec

Bump: and also wat injector should i use for 1.8 mivec with 1.6 mivec ecu and wiring
 
Any piggyback will do but it all depends on the specification of your engine build. Sometimes the piggy may be restricted by ecu parameters so can;t really tune to its fullest potential. As for injectors best use the 275cc ones from the Eterna twin turbo or H22A.
 
yeah i still have it....why straight wana play stroker...hehehe not bad..u siap your evo..then come test power with me

no lar, sit original first..later got budget only belasah..interested to your custom forms only..
 
hello... i'm planning to bot my mivec :stupid:... according to my mech the mode are
1. gsr turbo kit
2. adjust head (dont know what he mean)
3. GSR piston
4. recip mivec ecu to suit turbo mod
5. change injector to 390cc GSR

need some advice pro&con regarding this mod... is't good o not ??
:hmmmm:

tq.....:biggrin:
 
Last edited:
GOT MONEY.. ofcourse GOOD !! ^^
change hks cam and change ecu ...
and fuel regulator...
boost 1.5
using GT28RS :adore:
 
hello... i'm planning to bot my mivec :stupid:... according to my mech the mode are
1. gsr turbo kit
2. adjust head (dont know what he mean)
3. GSR piston
4. recip mivec ecu to suit turbo mod
5. change injector to 390cc GSR

need some advice pro&con regarding this mod... is't good o not ??
:hmmmm:

tq.....:biggrin:

hmmm bro why wana make your head pain...since u wana do bot why dont straight get it done a good set up
get a gsr block & do full balance
acl race bearing
mivec head port n polist
jun cams
user full evo wiring to avoid head ache
u dont need to use a gsr turbo u can even fit in a GT30turbo with this set up
use evo injectors minimun
and a e-manage minimum or got more cash get a haltech which will be a superb management

i have not added the rest stuff like blow off valve n wastegate ler...thats is based on your preference on what type u want

u have something your beast done
 

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