please check out my 1st-3rd (and a little bit of 4th) datalog and give any feedback.

 

Looks a lean when it makes the transition to the secondaries. Other than that, looks good.

 

thanks ludwig.

unfortunately, i am running 550cc primaries (bosch ev6) and id2000 secondaries, so i had to scoot the transition down into vacuum (2 inHg) and the primaries are almost maxed. at least it's only lean at the transition i guess.
i am going to get some id1000 primaries (or maybe id2000) at a later date and re-tune, possibly on e85.

 

This is what I'm talking about. Right on the time indicator line. You're already fully into the secondaries and at full boost. It happens at every transition to boost. You need to have the secondary injectors bringing in more fuel at that point. Your primary injectors are going static at around 6000 rpm. You could get away with a lower DC on the primaries by using common mode instead of primary hold. This would allow the primaries to run at the same pulse width as the secondaries after the secondaries come on line. You would need to compensate for the change by adding more secondary pulse width, but all-in-all it's going to give you a better use of the injectors for what you have.

 

ludwig, thanks.
i attempted common mode, and no matter what, i could not get the transition smooth going up past the transition nor back down.

also, the way it currently is, IIRC i have either zero or almost zero pulsewidth for the first column in the fuel map when the come on at the transition. i will check into this tonight.



you are right. that range looks dangerous.
i will tinker with common mode again, but i swear i almost pulled my hair out (what's left of it) trying to get it to transition without a jerk...

 

Are you using the staging bar injection time map?

 

Just thinking here.
Know a few guys running 1600 primary and idle is good. There transition is around 10psi.
Wondering if the ID 2000 injectors were your primary injectors, that would probably get you to 12psi. Then there would be no need for secondary injectors.
Or if the 2000 do idle good, see just how far they will take you. Then transition the secondary injectors in.

just a thought.
The only ID2000 primary car I've seen is on e85 and idle is good.

 

Ludwig, I am not using the staging bar injection time map, but I have two additional columns in the staging area, one on each side of the staging column (2.2inHg, 2inHg, and 1.8inHg.


is the issue really with the transition? it seems like the lean spike is happening well after the secondaries are on. I was just out datalogging trying to correct this issue, and I cannot get the slight lean spike out... I got it slightly better, but I couldn't get it down into the 11's...

 

here's my map.

feel free to add any additional input

 

I'll give this a shot

I would try increasing the disenrichment to 2ms and start with 1.5ms when the secondary injectors start at -.9.

looks to me your secondary injectors are not working from zero rpm to roughly/around 4500 and -.9 to 4psi.

 

Put some legit numbers in this area. You run right through the upper edge of this when you transition to boost. I'm wondering if the lean area of the log isn't actually coming from a lower rev/boost range and it's just latency of the sensor and log showing it at higher revs and boost. Either way, you need real values in the this area of the map.

 

ludwig, that range you have highlighted:
i need to dyno again, but IIRC, at about 3500rpm and below, i could not run hardly any injection time with the secondaries without it dumping more fuel than i wanted. it seemed kind of difficult in those first two post-transition columns in the lower RPMs to add a small amount of fuel. i was thinking this was because of the large secondaries.
i think you are correct though. this makes sense, especially for the 4500-5500 columns.

i just bought some id2000 primaries and i'm going to re-dyno next weekend and basically start over with a new main fuel map with the transition a little higher.

 

also, ludwig, i noticed my wideband unit itself (innovate mtx-L) reacts much more quickly than the haltech "gauge" shows the afr value. is there any way i can turn up the refresh rate of certain gauges? have you heard of this before?

 

This is what disenrichment is for. Minus primary fuel so a good MS number can be imputed in the secondary map at the transition.

 

got my FIC 2200 injectors installed and moved my ID2000s to the primary locations, and also moved my staging bar up to 2 psi

then i missed my dyno appointment.


ludwig, you have any experience with ID2000 primaries? they are making some wicked-loud fuel pulsation. i'm wondering if this is a common issue. i really don't want to mess with an aftermarket FPD.

 

so, i re-dyno'd today and got 342whp @ 12psi on the dyno dynamics.

4x 2200cc injectors is pretty serious; running about 40% duty now, IIRC. i'll post a datalog later.

https://www.facebook.com/photo.php?v...48002301193037

 

No experience with them in the primary spot.

 

just a little update here:

for anyone who hasn't yet downloaded the newest ECU Manager software, DO IT.

the refresh rate of the wideband "gauges" display has been increased substantially.