Will someone please send me a datalog?

[mad_sb]

Originally Posted by whitefrs

How about mine lol


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I thought I already commented about your idle hunting but I guess that was someone else. They probably have the feedback table set too aggressive. if the timing shoots up and down, leading the rpm change from high to low (timing drops, rpm drops, timing goes up idle goes up). There is also probably a fuel feedback table for idle as well. If the timing feedback table has not been messed with then i would assume the issue is with injector latecy and or the fuel feedback table (if there is one, i think there is but it may not be defined yet).

[xjohnx]

dropping knowledge.

[ATSAaron]

Originally Posted by mad_sb

Any pro tuner should know how to do this using the tables that are natively available in the rom (assuming injector latency and scaling are there, and they are in the case of the twins). Yet another reason i don't like ecutek.. but thats not the point of this thread.

They are there and I had them right all along. What was throwing me off was the cranking. No matter what size injector I put in, it was throwing up to 25ms of port injector when I turned the key to start. With ID1000's you need about 5 or 6 ms. That's just math, huh..haha. 1000/250 ~= 25/6

BTW I AM a pro tuner, but not a pro at Ecutek (or Subaru) yet. 99% of my work is with Toyota MR2's. Mostly aftermarket ecus like Motec, Autronic, Vipec, Link and Power FC. Things that were designed to be tuner friendly. The problem with BRZEdit and EcuTek is that they are basically limited to putting a face on an already set in stone package that we were never meant to see. So we get some undefined tables, things that seem to do nothing, and things that don't do everything they are described to do.

Once I found out that cranking fuel was not getting adjusted by the injector scaling I made big progress. Basically the car started and drove just like stock. I put down 285whp at 6 psi yesterday. The air fuels show about 12.17 on the stock O2 sensor, but about 12.7 on my dynojet.

I may add a third O2 bung to my downpipe and move the dyno wideband up there instead of using the sniffer. Hopefully that will put my two readings closer to each other.

Today's other challenge is to repurpose the CPC solenoid into a rpm and throttle dependent boost controller.

Thanks again for everyone's help.

Aaron

[King Tut]

Originally Posted by ATSAaron

Once I found out that cranking fuel was not getting adjusted by the injector scaling I made big progress. Basically the car started and drove just like stock. I put down 285whp at 6 psi yesterday. The air fuels show about 12.17 on the stock O2 sensor, but about 12.7 on my dynojet.

What turbo are you running? I feel like I have read it somewhere in the past. Half a point to a full point leaner sounds about right for a tailpipe sniffer.

[Ross]

injector latency and scaling are both present on EcuTek Mad_SB, sorry to thread jack.

[mad_sb]

Originally Posted by ATSAaron

They are there and I had them right all along. What was throwing me off was the cranking. No matter what size injector I put in, it was throwing up to 25ms of port injector when I turned the key to start. With ID1000's you need about 5 or 6 ms. That's just math, huh..haha. 1000/250 ~= 25/6

BTW I AM a pro tuner, but not a pro at Ecutek (or Subaru) yet. 99% of my work is with Toyota MR2's. Mostly aftermarket ecus like Motec, Autronic, Vipec, Link and Power FC. Things that were designed to be tuner friendly. The problem with BRZEdit and EcuTek is that they are basically limited to putting a face on an already set in stone package that we were never meant to see. So we get some undefined tables, things that seem to do nothing, and things that don't do everything they are described to do.

Once I found out that cranking fuel was not getting adjusted by the native injector scaling I made big progress. Basically the car started and drove just like stock. I put down 285whp at 6 psi yesterday. The air fuels show about 12.17 on the stock O2 sensor, but about 12.7 on my dynojet.

I may add a third O2 bung to my downpipe and move the dyno wideband up there instead of using the sniffer. Hopefully that will put my two readings closer to each other.

Today's other challenge is to repurpose the CPC solenoid into a rpm and throttle dependent boost controller.

Thanks again for everyone's help.

Aaron

Right on, my comment was about that I think ecutek masks the use of the native scaling tables by putting in that fuel scaler option you mentioned (from what i have heard, i have not seen it). FWIW, on the stock rom when i scaled for E85 using the native injector scaling, i think it did scale the cranking pulse width.

I'll double check while i'm back on pump gas for the week and see. Glad you got it sorted, did you adjust the cranking enrichment table (3d) or the cranking pulse width table (2d)?

[ATSAaron]

Originally Posted by mad_sb

did you adjust the cranking enrichment table (3d) or the cranking pulse width table (2d)?

Both. I cut both in half..guess that made it 75% off. I'll probably have to mess with that quite a bit when the weather changes, but for now it starts fast cold or hot.

Here is a screenshot. New is on the left, stock is on the right.