I performed a search, but was unable to find anything regarding this topic. I looked at their site and found that the kit only comes with 2 new injectors and a fuel injector controller. Why are there only two and not 4, and how reliable is that? If anyone can provide me with some information, I would appreciate it. Thanks.
JT

 

They are secondary injectors, designed to supplement your factory injectors by adding more fuel than stockers are capable of delivering. HTH, EV.

 

Thanks for the reply. Where are they placed in relation with the other 2 stock injectors? Does it matter where they are placed? Thanks for your help.
JT

 

The injectors are placed before the throttle body on the intake pipe.

art

 

yep, they are mounted ~8" from throttle body.

 

Are there any disadvantages of having this form of fuel management? Or is this one of the best ways to do it. Thanks.
JT

 

imho, its a better way to fuel than the pump/fmu method simply because you can easily increase/decrease fuel by turning the adjustment pot. A good session on a dyno would be ideal.

Unless you have good sized injectors and an AFC with the pump/fmu combo then the MF2 should do ya' well.

I've come to an understanding that high rail pressures compromise injector reliability.

 

could you just plug up those holes on the intake pipe then go for hondata, bigger injectors, and fuel pump?

 

Yes, as a matter of fact that is what a lot of people do. They like the build and qualityof the FMAX kit but they DISlike the fuel management. So they dont get the additional injectors and AIC.


one of the main disadvantages of an addittional fuel injector setup, is the possibility of uneven fuel distribution between the cylinders. This would cause some cylinders to run rich, and some to lean out. Theoretically thats true, but a lot of people have used the FMAX kit and reported no problems. I have also read that an additional injector setup is not recommended for higher than 9-10 PSI, cause the likelyhood of uneven fuel distribution is even greater.


[Modified by BlueShadow, 9:01 AM 3/6/2002]

 

of course!

 

definately the case with me...1,2,3are ok to sighly rich..4 is drowning...can't seem to get it right so the injectors are coming out..anyone want to buy them + the mf2...give me mail!

 

How much PSI are you running?

 

about .6 bars

 

Hmm weird.

And another thing about the MF2 AIC, The controller can control up to 4 additional injectors. just a useless bit of info for you all.

 

ok I have 4 240cc injectors from another D16Z6 I have sitting on the floor.

I was just planning on running a vortech FMU for the summer with my turbo.

Maybe I should consider putting another injector in my intake pipe before the throttle body?

Would this eliminate my need for an inline pump with the FMU, hence the stock intank pump would do the job? Would one extra injector do or would more than one be ideal?

How is it activated? like run an in series connection off the #1 cylinder injector?

How much boost can one push on this setup? and what are the limits.

Basically tune it with an EGT and turn up the fuel on that extra injector? I guess then I would go with a lower ratio on the FMU then hey?

Sounds like a cheap alternative to a stand alone and bigger injectors?

Are there any pages which would have any info on this?

I am very interested in this alternative guy's. and as I'm almost in the process of my pre-fab work for the custom turbo, the sooner I can figure this out the better as I can put that injector into the intake piping before the fact.

I know guy's alot of questions but hopfully this will help us guy's on a budget out.

Thanks in advance.

 

How are you getting a/f ratios for an individual cylinder?......?

 

--as a general rule of thumb 9-10 PSI is a "safe" limit for an additional injector setup.

--I would look into seeing how much an additional custom fuel rail would be. fab up a custom rail that you can mount 4 sdditional injectors too, then rail can be placed in a way that would allow each injector to spray closer to each individual cylinder.

Here is a link about the MF2 and FMAX kit. there also a link to aquamist.com that show you the features of the MF2.

http://www.preludeonline.com/showthr...threadid=39572

 

read the plugs. putting a probe in each runner would get a tad expensive.

 

The Fmax kit is very nice. Please, if you have the funds, bypass the MF2 and the extra injectors and get a standalone (perhaps I'm partial to Hondata 'cause I have one and they do have great customer service).

The MF2 and extra injectors will work fine if you tweak it really well.

If I had to do it all over again (and lived in a location where I could easily have had someone make custom pipes, I would have built up a turbo setup from scratch. For the time and effort, the Fmax kit provides good quality. I will say that it took them a while to get the intake pipes figured out.

Find a reputable distributor. Rich at R2Autosports worked out a group buy a while back and has since folded and left one guy without a kit after he paid for it.