how about electric fuel pump?see u are using dcoe...i like that....im using dhla..

I use external electric fuel pump for carburetor made by Mitsubishi Electric. Sufficient to supply my twin DCOE40. U're using DHLA eh? What size? Twin?

Oh ya, as mentioned earlier u're looking for MSD dist cap. What is ur plan with MSD actually? Mind sharing.

I've plan with MSD aswell. Planning to have MSD 6AL to couple it with current Accell Coil I use.

yup twin dhla40....im using ori ac pump now...haha..not enough fuel..i plan want to use facet elec. pump...

the msd cap...my plan want to use msd coil,that the square big one..but i worried the cap can be melt or something.. hehe..what do u think?now i just try the jasma pc 91 coil..quite okla but the sound of flame can hear from inside car...when stuck in traffikla...n open window.....

can u take ur engine pic in the centre...just want to see...if u dont mind..hehe

U might want to read this first, it is about fuel pump for weber/dellorto

Top-End Performance 818 764-1901


Yeah I don't mind at all, good to have U here, otherwise I'm the only one that use carb in here, all alone heheheh

Here it is, my engine, this when I use stock Bosch Coil



Then I upgrade this coil, similar specs with MSD Blaster 2 Coil




About the dist cap, I think it can withstand the MSD Coil output.

Hai all...i just went for dyno my engine....

Without servicing and anything just went like that....my front rim has bent...

My result is 78.2hp, tork 7.9 and AFR, above 12...(banjir)...for 4G91 oversize piston.....my pren 4G91 standard got 88.0hp....differ 10 hp than mine

Mind to share...what factor can affect to the horsepower.....

azrun95,
Did you guys dyno in the same shop on the same machine?
If not... then that would be your no.1 reason right there... =p

Hai alvin24....

We dyno at the same shop...together about 15 cars...this is my 1st expirience in dyno

91 oversize piston - 96 hp
91 standard - 88 hp
92 standard - 91 hp
mivec md 1.6 - 119 hp
GTI 1.8 - 116 hp
mivec 1.8 - 160 hp
GTI evo 3 - 210 hp

me got 78.2 hp.....haha...
oversize piston also
but i not meticulous while taking care of the engine....like i said, not service the engine, using cheap oil, plug not changing, got bent at my rim...

Dyno is on wheel...not on engine

But i not frustated on the result....just wondering....why my hp is low than others....still happy becoz test on the road the result differ than the hp...lol

azrin....i never dyno my car .....hahaha....i dont know how much my hp.....where do u live...?

2yrs ago dyno tune my emanage for 4g91 wif 92SOHC block @ JC Racing = 107hp on wheel...
wif some other simple mods like pnp, 1.8cams, fuel reg, racing clutch, lighten flywheel, exhaust.....
one sifu dat really squeeze the hell out of 4g91 is bro JoeMirage....can ask him wat hantu he put inside....

hahaha.. aiya calvin! me no monster

btw i haven't got the chance to dyno my 91 but all i can say that it is on par with std mivec 1.6. now im using 93 already because my 91 kebabom. but if u hunger for more power but want to stay with 91 block, then go for highcam (duration depends on the engine compression and what suit for u) and fine tune with piggyback at least. the highest 91 that i came across with just oversize piston and emanage is 115whp at gt auto. might be other 91 users with crazy hp...

91 oversize pistons,meaning 81mm?? same as 92/93 pistons??

yup bro...92/93 std piston is 81...but diff comp......i used 81 std mivec piston...its ok to me la.......

wahhh very high compression! I use standard 92 high comp piston, lower compression the mivec piston.

okla ayell....but i think want to try use honda or something high comp 83mm....next project...hehe...its anybody want to sell 1.8 cylinder head?rojer me plz......if my next project done i will dyno my car...hahahaha....hope more then 100..

At Old Klang Road....

Dyno done at Millenium Sunway.....dyno at 4th gear

My spec:-

81 mm mivec piston
1.8 tb & wiring, AFS 339
240 injector - i think this cause my fuel so rich - above 12
Adj cam - set hi-end
4 wheel gb lock to 2 wheel - is this can cause low hp?...
8.5" flywheel with standard clutch plate - previously using 9" gsr f/w


Quite sometime the 'check engine' will appear when rpm below 3k..... - this i think got something wrong on the adj cam setting