sorry but not really taken an interest in it until now, i understand it delivers more fuel but does it make the car run better?

 

basically there is a limit to the amount of fuel the standard mfi unit can give, this will limit the amount of bhp you can run with supporting mods. There are three ways around this:

1)change to efi (costly and some would prefer not too)

2)have metering unit modified by the likes of m.a.d and jamsport etc (great results)

3)run fith injector kit (mf2 fully mappable is a great hassel free upgrade also with just as good results as the above.)

Really if you want big power then you need to think about this if not you will be fine, if your tuner tells you the next stage is more fuel then the above things will help you achieve this.

 

what he said....

 

MFi cannot be 'mapped' on the fuelling side, so to run more fuel for higher boost, will affect the off-boost fuelling too.

So, running a 5th injector will enable you to leave you base fuelling at a sensible level and therefore retain a little economy, whilst mapping in extra fuel for boost.

 

thanks guys

 

What exactly do they mod on the metering head to allow more fuel......

Or are you just talking about adjusting EMFPR

 

i couldnt say what they do as some tuners dont like to tell the tricks of the trade so i will leave that for someone else.

 

whole lot of fun if your gay!!!! its called a train i'm told,
yahooooooooooooo lol

 

what the f***

 

 

Let's play 'Guess what thread Aaron was looking at when he wrote that reply.....'

 

On my car at the mo there is a fifth injector,but at the mo the car is set up not to use it.When it was last on the rollers it was about 200-210bhp.If the fifth injector was to be set up would i see much of an increase?

 

No, you wouldn't see an increase by just setting up the 5th injector. It would only be beneficial in terms of power if there wasn't sufficient fuelling for the boost it is running, or if the engine could take more boost.

 

you will need supporting mods to gain anything from a fith injector, like i said if your tuner has informed you the next step is more fuel then you will need to look into this.