VTR Turbo Fueling Issues

1. JA3llis Infrequent Poster Joined: May 2009 Chesterfield Posts: 137 Vtr MK2 ZX7R

   #1 24th March 2012, 22:55

   Evening all right today I finshed my turbo conversion on my vtr. I have changed fuel pressure reg to a 4 bar and plugs to ford turbo ones. I am running a solid 9 psi boost but when on boost it seems to be bogging down and feels to be running lean I just wondered if bigger injectors will sort the problem if so any ideas of what size? I was thinking vts maybe a good start. Cheers
2. dannygti Saxperience Post Whore Joined: Feb 2006 dudley United Kingdom (England) Posts: 6790 106 gti/ SEAT LCR

   #2 24th March 2012, 23:00

   You need a standalone ecu and suitable size injectors for your power target.
3. JA3llis Infrequent Poster Joined: May 2009 Chesterfield Posts: 137 Vtr MK2 ZX7R

   #3 24th March 2012, 23:03

   stand alone will be coming in the future any ideas on injector size to help running atm
4. dannygti Saxperience Post Whore Joined: Feb 2006 dudley United Kingdom (England) Posts: 6790 106 gti/ SEAT LCR

   #4 24th March 2012, 23:15

   What's the spec? No good me just guessing is there

   1 user thanked this post: Pricklep
5. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

   #5 24th March 2012, 23:34

   I'd be more tempted to buy a standalone ecu first to be honest mate
6. JA3llis Infrequent Poster Joined: May 2009 Chesterfield Posts: 137 Vtr MK2 ZX7R

   #6 25th March 2012, 08:31

   Renult 5 gt turbo t2 Mhm manifold full stainless 2 inch saxsport ford turbo plugs and 4 bar fpr running 9 psi
7. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #7 25th March 2012, 11:27

   With no afr gauge on you'll be looking at a fried engine very quickly tbh
8. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

   #8 25th March 2012, 11:46

   first call of port should be an aftermarket ecu, throwing more pressure and bigger injectors is just pissing in the wind I'm afraid.

   1 user thanked this post: user_10473
9. user_10473 Saxperience Forum Bum Joined: Jun 2006 Swansea Posts: 4946 Bianca White Peugeot 106 S2 Rallye, Saxo VTS

   #9 25th March 2012, 12:01

   You have to sort your fuelling out! As has been said, Bigger injectors + More pressure, is NOT "sorting your fuelling out."
   
   Where do people seem to be getting this idea that all it takes to turbo a car is a couple of bolts, a new manifold, a turbo, a bit of pipe and a new FPR? All the valuable information on this sort of project can be found in the Engine FAQ's page. It's there to stop people frequently asking questions.
10. JA3llis Infrequent Poster Joined: May 2009 Chesterfield Posts: 137 Vtr MK2 ZX7R

    #10 25th March 2012, 12:42

    I do understand that it will req a standalone as its not just about more fuel it's about ignition timing too. I simply asked what injectors are you guys running at that sort of boost didnt realise it would offend!!
11. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #11 25th March 2012, 13:16

    you determie what sort of power your going to/want to run, leave soime scope for future mods if thats waht your planning, then work out what size youll need
12. JA3llis Infrequent Poster Joined: May 2009 Chesterfield Posts: 137 Vtr MK2 ZX7R

    #12 25th March 2012, 19:17

    Would something like a dastek piggy back be up to the job?
13. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #13 25th March 2012, 19:21

    it would...but by the time you get it fitted and mapped with a boost module you may aswel go standalone
14. JA3llis Infrequent Poster Joined: May 2009 Chesterfield Posts: 137 Vtr MK2 ZX7R

    #14 25th March 2012, 19:27

    What standalone would you recommend?
15. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

    #15 25th March 2012, 19:59

    Megasquirt will probably be the best for a vtr
16. Sophia_Bush Saxperience Post Whore Joined: Jan 2007 Shropshire Posts: 9994 Moonstone Blue 106 GTi

    #16 25th March 2012, 20:03

    if you need bigger injectors I would try either 1.8 16v ones from a 406 or mi16 ones I can't say I had any issues on the kit when it was on my car but its good to see you've sorted most things out I couldn't
17. user_21226 Saxperience Post Whore Joined: Feb 2008 wirral Posts: 6348 Icelandic vtr turbo

    #17 26th March 2012, 13:12

    I've got a set of brand new 440cc injectors for sale along with a FPR with gauge if they're any use to you