AJ-RST1

iTrader: (2)

hi, im lookin at gettin a fifth injector for my s2, is it easy to fit or shall i get a tuner to do it? will it make a differnce to my car etc?

G2RSR

upto 300 bhp with a 5th injector real east to fit

B1G_RST

iTrader: (1)

also always wondered this also,where does it go into th metering head ?

rs_jim

ask cosworth_cab for details his brother done it on his uprated escort rs turbo s2

carlyrs

how much do they go for?

G2RSR

Ł200 to Ł250 secondhand for the full kit inc injector

AJ-RST1

iTrader: (2)

i think it goes into the charge carrier and in the cold start valve?

kiddie

Charge carrier as above

juffer

on the air flow meter where the cold start valve is connected, that is removed and the fifth injector fuel suply comes from there. also on the side there is a spare nut which the cold start valve is relocated to. this is how mine is i can take some pics if you want but wont be for a few days as im not going up my unit.

cressy

iTrader: (1)

i mate this picute might make it abit easier long pipe goes to charge carrier short pipe with bango cold start & short pipe with nut on to metering head

bad boy rs

iTrader: (7)

I recognise that photo ?

AJ-RST1

iTrader: (2)

will it make i difference to my rs im running around 200 brake mark.

bad boy rs

iTrader: (7)

I had that made, it atchualy goes off the outlet on the fuel filter then to metering head and then feed to injector on charge pipe. That way you keep the cold start valve as mine was an arsehole starting without it.

kiddie

Makes no power, its just to stop det. Its not the best method out there as the fuel is not distributed to each cylinder evenly. If looking for big power, go efi and change management. But it worked on my car and I ran 25psi but its horses for courses, it boils down to money and what you can afford.

JoeRS22

iTrader: (2)

hey bad boy rs where you been nigger aint seen ya for time???

b3nny

got one of these on my n/a 2.1 it has made a difference, but only becasue my mfi couldnt handle the amount of fuel it needed at higher revs! plus stops your engine burning out if its fueling wrong, think i should have about 5-6 bhp more, but thats just because i got the fuelin sorted! cost me 225 fitted.

motormel

iTrader: (1)

hi, just got a fifth injector but haven't got the fuel pipes (the braided in the pic) any idea where i can get some from. also the black pipe with the blue samco on the end, where does this go??? also has anyone got a wiring diagram for one???
please someone help
cheers guys

Karlos G

iTrader: (4)

It will allow you to run more boost so YES you will make more power once it's fitted and then setup on the R/R!

Or to save time you can just fit the 5th injector to where the blanking nut is in the first place

Way off the mark there mate...

The average metering units fuelling capacity tops out at around the 200bhp mark (some will do more and others less!) so to run more boost and as a result make more power you need to give it more fuel, this is why you fit a 5th injector.
It is generally fitted into the CC pipe and injects directly into your charge air as it passes (as in the photo above) and as a result DOES fuel all 4 cylinders evenly.
Your tuner will map it to your boost via a controller which will allow your fuel pressure to be turned down a bit (giving you better off boost economy and drivability) but still maintain the correct fuelling when under load!
IMO if wanting more power on MFi it's the only way forward!

You can use pretty much use any injector but will need the controller to run it.
I have one if you need it, brand new never been fitted still in it's box with instructions PM me if interested.

boothy

iTrader: (14)

karlos g ,why you not running the fifth injector??

Karlos G

iTrader: (4)

Because i'm building an all steel CVH over the coming months, going EFi (probably megasquirt) and so am leaving my current engine as it is

Rick

MF2's rock. You can get really nice driveablility and economy from Mfi with them on. I fit them to sub 200cars if the customer can get one one as you can cruise at 15:1.

Karlos G

iTrader: (4)

Woah!! Thats an excellent AFR for economy

timturbo

you going spend money on all steel bottom end and run it on cheap megasquirt?

Karlos G

iTrader: (4)

From what i here it's eay to install and a lot of tuners are familiar with it for mapping.

clarke5700

it works tho

clarke5700

i may have a v3 forsale

Rick

With one of the best transient strategies out there.

Karlos G

iTrader: (4)

lol what is a transient strategy Rick?