turbo 420a injectors

[xx95eclipse95xx]

im installinga turbo on my 420a and need to know the best and most affordable route to take in replacing my fuel injectors and what i need to do when i replace them.

 

[rstare]

http://www.dsmtuners.com/forums/articles-engine-fuel/104301-injector-removal-installation.html
Relativley easy, im doing it next week. Dont forget to get a way to control them, stock ecu cant. Best bet is to look around the classifieds, people on here. (thats where i got mine)

 

[xx95eclipse95xx]

yea i know how to take them off i just need to know everything i need to do to make my car be able to support them and i need to know the cheapest way to do it, my friend is giving me some 450cc blue tops for free.

 

[93_tsi_fwd]

Dont forget the injector's transistor pack. Its that little rectangle box mounted on the fire wall.

 

[xx95eclipse95xx]

do i need to upgrade my ecu or do anythign special to run 450cc's or what?

 

[xx95eclipse95xx]

ne1 know?

 

[WarSaw]

You won't need to change ecu's. You will need some kind of fuel management such as a SFMU to control those injectors though.

 

[rstare]

Exactly what warsaw said. The stock ecu isnt capable of controlling bigger injectors. A fmu, which you probably have now since your turbo'd also will not work. A sfmu allows you to control them because you can change the idle/static fuel pressure. This is the cheapest way of controlling bigger injectors and works well as long as your not running higher boost.

 

[Locke]

MegaSquirt would be ideal, a SFMU would be minimal. There are various methods in between that will work as well.

 

[PCD_RS]

Hey guy's I saw this thread as I was searching throughout the forum...

I have 340cc injectors. Would I need to get an SFMU as well? Would the Apex'i SAFC help control it? Or would I NEED the SFMU and rid of my FMU..?

Thanks guys in advance!

 

[starfish]

Im also trying to find out the best way to get up to 15psi.Right now im at 8psi with 255 walbro and a vortec 12:1 FMU with a blox and a electronic FCD.Im trying to find out the best fuel requirments to reach 15psi.MS or bigger injectors with SFMU? which is the best way to go for every day use?

 

[Misterbeechy]

i like this thread.. i need answers too!

 

[Locke]

The "best" way to go above ~8psi would be to use MegaSquirt, with a AFPR (instead of the 12:1) and larger injectors.