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Forum nameTurbo/Nitrous Tech
Topic subjectFMU Recal.
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=32363
32363, FMU Recal.
Posted by sonikbewm, Oct-08-02 02:34 AM
I'm sure that I already know the answer to this but I just wanted to ask before I started tearing apart stuff. Right now I have 30lbs injectors so does this mean that I need to use the 6:1 disk and then later when I get the 42lbs injectors I'm going to need to use the 4:1 disk? I just wanted to make absolutely sure eventhough that is the disk that their website says to use for those injectors. TIA
32364, RE: FMU Recal.
Posted by EvuLFleA, Oct-08-02 03:01 AM
Check out Corbins page to find out which disk you need. His page has plenty of info as long as you can do the math.
32365, RE: FMU Recal.
Posted by Corbin, Oct-08-02 03:32 AM
Who says to use those disks with those injectors? I'm not going to say they are wrong, but I would be very sure that they are talking about your exact engine/turbo/boost.

If you read over my pages, you should keep in mind that every turbo setup has its own fuel requiremnts. And keep in mind that Vortech's FMU disks are overstated. The 12:1, 10:1, etc disks don't increase fuel pressure but like 60-70% of what you would think.


Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire
32366, RE: FMU Recal.
Posted by sonikbewm, Oct-08-02 03:48 AM
OK, this is why I asked. I got those numbers from the Vortech website. Thanks for the replies.
32367, RE: FMU Recal.
Posted by Nitrous_RS1997, Oct-08-02 04:16 AM
Im pretty sure DeanoD was running those injectors and the 6:1 disk at one time, and had problems going lean. changed to a 8:1, and was fine.
32368, RE: FMU Recal.
Posted by Kirby, Oct-08-02 04:26 AM
Yes that's right ^^^^^ You have the same kit as deano d so you will need the 8:1 disc. I would reccomend you hook up the data logger to really tune it.
32369, RE: FMU Recal.
Posted by sonikbewm, Oct-08-02 09:21 AM
I get my laptop back next weekend so I can finally datalog it. I just wanted to be totally clear on the recal. disks. Thanks for the help.
32370, RE: FMU Recal.
Posted by Corbin, Oct-08-02 11:36 AM
Oh, I see...don't trust any fuel injector recomendations from the Vortech site. Go by calcs and what others on the board recommend. Vortech is making VERY general statements about those disks. Use that datalogger and don't rely on the S-AFC too much (you know that when it leans, the ECU will advance timing). Too much timing advance can lead to combustion problems (high load detonation and low load knock).


Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire

Parts Collected for next engine:
2.4l PT Turbo pistons
2.4l PT Turbo rods
2 Rolls duct tape
32371, RE: FMU Recal.
Posted by HiOnPSI, Oct-08-02 04:26 PM
Jason, I think we may try an impedence box and low impedence peak and hol d turbo injectors, Ray is telling me they work better and maybe willing to help us wire it. Not only that, he'll sell us both a set of 450's for 100.



Jon

1997 Eclipse RS

14.21@101mph 10/4/02

MODS: 8.8:1 JE Pistons / Eagle rods / Stage 1 Hahn turbocharger / Melling Oil Pump / Autometer 5" tach / 2 JL 12" W0 subwoofers / JL Audio 500/1 amp / Clarion 230w amp / short shifter mod / GReddy EVO exhaust / custom 2 1/2" downpipe / no cat con / CM Stage 1 / 30lb Mustang injectors / TurboXS MBC / 1G SMIC / Eibach Sportline springs / KYB GR-2 struts / GReddy 52mm EGT
32372, RE: FMU Recal.
Posted by sonikbewm, Oct-09-02 12:53 AM
Cool. Let me know how that goes.