injectors

1. littleblue1 Frequent Poster Joined: Sep 2010 High wycombe Posts: 698 2000 mk2 vtr

   #1 31st May 2012, 08:06

   I need to run bigger injectors in my car due to car under fueling because of turbo kit. Neway gti-6 injectors do they fit and will I need a remap? If fitted to rail will the car idle funny etc without remap
2. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

   #2 31st May 2012, 08:41

   You will always need a standalone ecu and a remap if you are running bigger injectors, without this the car won't idle and keep cutting out
3. littleblue1 Frequent Poster Joined: Sep 2010 High wycombe Posts: 698 2000 mk2 vtr

   #3 31st May 2012, 09:07

   I don't see why I would need a standalone ecu couldn't I jus remap my ecu to run those injectors! If I uprated my fuel pump that would help stop it bog out
4. Gareth_R Established Member Joined: Mar 2010 Basildon, Essex Posts: 1042 Citroen AX VTS

   #4 31st May 2012, 09:20

   Fuel pump won't make any difference
   
   There was talk of Wayne at chipwizards being able to get boost running on a stock ecu and remapped - the issue is with the ecu reading positive pressure off the map sensor, to then gauge the required amount of fuel.
5. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

   #5 31st May 2012, 09:20

   You will need a standalone ecu because the standard one won't be able to cope with the difference in fuelling between when your on full boost, and tootling around off boost, so if you use the standard one, you will either overfuel off boost, or underfuel when in boost which is disastrous as I found out the hard way
6. Wee_monkey1987 Regular Poster Joined: Sep 2011 Hertfordshire Posts: 250 2000 Saxo Woodland Green VTS, 2002 Mazda MX5

   #6 31st May 2012, 09:24

   i don't see why you'll need a standalone ecu either but can't you try increasing the FRP to 4bar and adjusting the injector pulse durations? although this does depend upon what size turbo you've gone for if its a beast then as you said you will need bigger injectors
7. littleblue1 Frequent Poster Joined: Sep 2010 High wycombe Posts: 698 2000 mk2 vtr

   #7 31st May 2012, 11:31

   I'm running a garrett GT17 turbo so only a baby 1 and I have a 5th injector with the mf2 which I can adjust the fuel at each RPM which I haven't yet adjusted!
8. littleblue1 Frequent Poster Joined: Sep 2010 High wycombe Posts: 698 2000 mk2 vtr

   #8 31st May 2012, 12:45

   And I put a 4bar FPR in it already! I don't think the pump can keep up! I have to let off throttle to give the pump time to catch up then plant it then it goes like a rocket again
9. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

   #9 31st May 2012, 14:34

   If you are using an mf2, then your best off adjusting the injector on that, as that injector is the one that fuels the boost
   
   If you get bigger injectors, you would be best off ditching the mf2 and buying a standalone ecu and map that
10. littleblue1 Frequent Poster Joined: Sep 2010 High wycombe Posts: 698 2000 mk2 vtr

    #10 31st May 2012, 18:35

    Yea an tinkering with mf2 as we speak! Not sure which way to adjust the little nut? Take it its clockwise for more fuel