My current setup, just need it reviewed

[bcool]

Well something is definately up. My turbo and manifold are glowing RED hot and my steering rack boot has now melted haha. Timing seems to be dead on and steady so i think something is up injection wise. Here's my H0 table

h[0]=01 02 04 08 10 20 00 00

I'm thinking i might have my primary lineup backwards. Any advice here?

[Sprocket]

You might find its too rich.

When i first started mine, it ran real rough, the exhaust was extremely hot, and at one point I had a two foot flame out the back!!

Once its running, reduce the required fuel setting untill it runs reasonabley well and long enough to get the lambda sensor reading aound 0.95. Tune the VE table from there.

Dont forget that if its missfiring, the lambda sensor will read the excess oxygen, not the fuel, so will react by adding more fuel compounding the problem. Get the engine to run on all cylinders/ rotors reasonable smoothly to get a fairly good Lambda reading and tune it from there.

What does the VE table look like in the first place? might be worth reviewing the values around idle if they are quite high. Dont forget that the VE table and the required fuel value are directly related.

Not sure on the injector set up. Are you running three  + three injectors staged?

[bcool]

correct on the staging. It's got a really nice smooth idle and seems to run just as smooth up through most of the rpm range. For the time being i have all of the low range timing set at 15* out of boost.

I adjusted my table to:

h[0]=04 02 01 20 10 08 00 00

I dont have the lambada sensor connected on the ECU yet. I just have my in-car wideband

[bcool]

Oh! big question: Under injection staging. I dont know of anyone that may have played around with this already but I have no clue what to stick in the section of "Rate To Calculated Pulse Width [0.4%]

My injectors are
Primaries: 550cc
Secondaries: 1600cc

[rob@vems.co.uk]

I've been asking the team and the guy who wrote the software has not visited recently.  I'll maybe send him an email in a day or so if I dont come across him.

[bcool]

Thanks, that'll be helpful. If you can, see whats all involved in the complete setup of staged injection. You could probably use my setup as an example

[bcool]

Anything back on the staging yet?

[rob@vems.co.uk]

Not as yet, best I find his email to prompt him.

Rob

[bcool]

I've only managed to find one person using staged injection:
http://www.vems.hu/wiki/index.php?page=MembersPage%2FGerbenvdLei

Staging

I added 4 injectors to my engine. So I now have 4 injectors aiming at the valves and 4 upstream. The secondary injectors are 305 cc and the primary injectors 240 cc.

Configuration:

I configured VEMS to do injector staging.

    * rate to calculated pulsewidth (inj_stage2_rate) to 200
    * TPS position to 0%
    * MAP value to 130 kpa.

Changed the firmware so the secondaries can be larger than the primaries.

I changed the VE table so all values above 130 kpa are devided by 2.

It works. Not quite how I had expected but after a bit of fiddling with the inj_stage2_rate it works.

---

Megatune showed wrong voltage:

    * Only problem is the volt meter in Megatune. It gives 20 volt readings while battery voltage is 13 v.
          o You probably missed to calibrate it, adjust battery calibration. Default batt_cal=0xBC (decimal 188) or so
                + thanks for that!

[rob@vems.co.uk]

Is is h[2] table around at all?

Rob

[bcool]

I emailed him. Hopefully the email address provided is current. haven't heard anything back on your side yet either?

[rob@vems.co.uk]

Yes and no.

Yes I've heard back as his business partner has replied to say that he's seen the email. No in that he's not had a chance to find out.

Doing a search on staging in the wiki seemed to indicate that the injectors that were staged were defined in h[2] line 7, not sure how that would work though.

Rob

[rob@vems.co.uk]

Now we've got something back from Dave, the guy who wrote it:

Nice to hear you are giving the injector staging a try I don't think
its used that often but we have used it on the 206gti project car with
great success.

The configuration can be a bit troublesome if you are not running a 4
cylinder though, because the h[2] entries are currently hardwired to
the first set using injchmax (injchmax must be lower than or equal to
3) entries and the second set 4 + injchmax entries. First set can use
X's, second set Y's -> h[2] = XX XX XX XX YY YY YY YY, example:

4 cyl, (phase sequential) using inj a-d as first set and e-h as second
set would need h[2] = 01 02 04 08 10 20 40 80

than for a 6 cyl, running two groups of injectors inj a-c first set,
inj d-f second set would need h[2] 01 02 04 XX 08 10 20 XX, the XX are
open for other functions on inj g-h.

The configuration is pretty straight forward, "Rate to calculated pw
[0.4%]" means, first set size divided by second set size, e.g. first
set twice as small as second set would leave us with a ratio of 50%.

[bcool]

Can't thank you enough rob. I'll start playing with it tonight.

Here's my proposed setup

h[2]= 04 02 01 00 20 10 08 00

And rate to calculated pulse width is set to 35%

Primaries will be 550's secondaries will be 1600's

The injector firing order will be exactly in this order:

01-02-04    Primaries
08-10-20    Secondaries

[rob@vems.co.uk]

That was Dave's work not mine
Should be interesting to see how you get on.