can you alter the afm to allow bigger injectors

peewee69 · Post by **peewee69** » Fri Dec 18, 2015 12:40 pm

Hi guys was wondering if I olter the air flow meter (afm) by opening it up and turn the dial/cog anty clockwise a couple of notches wil that allow more air to get in ? Also if I do that the needle that moves dosent touch the strip that it's sapost to touch so can I bend that strip to alow that connection again (on idel only)? Reason y im wanting to do this is I want to put in some gtx injectors iv got. When I tride it with out altering anything it wouldn't start and I don't now y so I thort I'd try this but ask you guys first

PIC is stock AFM and on stock settings

Angreal · Post by **Angreal** » Fri Dec 18, 2015 3:19 pm

Any reason you want to put in larger injectors? Are you going forced induction? I'm just going to say from the outset that no, your current plan won't work.

siren676 · Post by **siren676** » Fri Dec 18, 2015 6:44 pm

Wont work, biggest injectors you can get to idle on a stock ecu are 305cc, gtx ones are 360cc. Without an aftermarket ecu or piggyback you will not get it to run properly if at all

peewee69 · Post by **peewee69** » Fri Dec 18, 2015 6:44 pm

I just wanted go get more fuel and air going in and I'm not turboing it yet as I am to broke bt all I need is manifold and maybey an ecu. If I turbo my na 1.6 can't I use gtx injectors and ecu??

siren676 · Post by **siren676** » Fri Dec 18, 2015 7:05 pm

Nope, a gtx ecu is for a distributor not coilpacks.

Unless you want to blow up your motor i'd advise against trying to put more air into the motor without a fully programmable aftermarket ecu (e.g link).

peewee69 · Post by **peewee69** » Fri Dec 18, 2015 9:49 pm

Thanks heaps I did gi ve the AFM a go earlyer today and it ran OK bt I put it back to stock setting then hedd to work and the car ran its rings out think the throttel got stuck or somthing so I turnd it of and restarted it now it's running fine I think anyone now y it did that it sceard the shit out of me thort my motor was gana blow up aaaah :/

evel · Post by **evel** » Sat Dec 19, 2015 9:26 pm

you mean it rev'ed really high?

peewee69 · Post by **peewee69** » Sat Dec 19, 2015 9:31 pm

Yea red lineing :/

peewee69 · Post by **peewee69** » Mon Dec 21, 2015 11:20 pm

Wat should I do ?? Does that mean anything??

SLYDIT · Post by **SLYDIT** » Sat Dec 26, 2015 10:14 pm

there is ZERO point in bigger injectors on an mx.

they run PIG RICH even on stock injectors. you need to get it breathing better and leave the fuel alone. in fact my turbod car runs a leaner afr than factory NA tune.

peewee69 · Post by **peewee69** » Sat Dec 26, 2015 10:59 pm

OK thanks how do I gt more air in?? With the stock AFM and ecu??

siren676 · Post by **siren676** » Sun Dec 27, 2015 12:04 am

By pushing the accelerator

SLYDIT · Post by **SLYDIT** » Sun Dec 27, 2015 5:52 pm

i hate to break it to ya, but the B6 motor in the MX is no honda. they breathe like shit and the head is really restrictive. the only way to get any sort of power out of them is turbo. any NA mods are just pathetic and costly... if you want a better car then add a lightweight flywheel and 2.0-2.5" exhaust. maybe get some headers too if they come available but dont spend too much on them, youll need a heated O2 sensor if you do add headers. get your timing to 14 degrees and if your handy with a soldering iron you can change the clocking crystal in the ecu to 4.4Mhz from 4.0Mhz, this will lean the rich mixtures and remove the rev limit. I think don at autoway services does exchange ECU's with the crystal mod.

can you alter the afm to allow bigger injectors

can you alter the afm to allow bigger injectors

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