-= Ultimate Emanage Tuning Thread =-

[stealthII]

Originally Posted by BlackStealth

I've posted many maps so I'm not sure which one you're referring to. A couple months ago I switched over to stage 3, but I can't boost past 8psi, either my boost controller is broken, or I have a major boost leak -- haven't had the time to investigate which it is yet. But at 8psi and lower, there wouldn't be anything in the I/J map to add fuel.

This is the map that I believe was posted a while back:

http://www.stealthtt.com/3Si/EMU/Bla...0CC%20(SD).EM2

That's interesting that you can't boost past 8 PSI. That sounds like wastegate pressure. Where you able to run higher boost in Stage 2.5?

[BlackStealth]

Originally Posted by stealthII

This is the map that I believe was posted a while back:

http://www.stealthtt.com/3Si/EMU/Bla...0CC%20(SD).EM2

That's interesting that you can't boost past 8 PSI. That sounds like wastegate pressure. Where you able to run higher boost in Stage 2.5?

I just looked at that map and in the I/J Parameter setting it says "+ Only" so it could never have been stage 3 map as they are "+/-". So it's a stage 2.5 speed density map that you have there.

Boost always had worked on my car fine before, it just came suddenly during a WOT run regardless of what emanage stage I was running. Been too busy to diagnose if it's a boost leak problem, and also didn't have the right equipment available. I just picked up a 19 gallon air compressor so I can check for boost leaks again. Either I have a major boost leak, broken turbo or failed EBC.

[stealthII]

Originally Posted by BlackStealth

I just looked at that map and in the I/J Parameter setting it says "+ Only" so it could never have been stage 3 map as they are "+/-". So it's a stage 2.5 speed density map that you have there.

Boost always had worked on my car fine before, it just came suddenly during a WOT run regardless of what emanage stage I was running. Been too busy to diagnose if it's a boost leak problem, and also didn't have the right equipment available. I just picked up a 19 gallon air compressor so I can check for boost leaks again. Either I have a major boost leak, broken turbo or failed EBC.

Yup, I believe that was your Stage 2.5 map that was add only. I have also seen on the 720CC map that the I/J map was all blank as well. Any clue one why they might have been made blank?

Another thing you could check would be your vacuum hoses to the turbo wastegates. Maybe there is a leak there as well? But I would lean to a bad EBC solenoid.

But on a lighter note, I took my car into Titan Motorsports and had a guy named John tune the car. He did a pretty good job. Car made 430awhp @ 16psi. So not too shabby. Since he was still using the Global Injector Sizing, we ran out of fuel and hit about 96% IDCs. Just wanting to make sure, as I am pretty sure my 680cc injectors have plenty more fuel, but the IDCs are just high because of the sizing? Is that a correct assumption?

I think I will eventually get a new Output map created and turn the boost up after I get the engine broken in more. But for right now, this should be alright. I will try to get some more logs later, but for right now, here is the map I am using:

http://www.stealthtt.com/3Si/EMU/Jester%20Tuning.em2

Does everything look ok so far?

Thanks again!

[BlackStealth]

Originally Posted by stealthII

Yup, I believe that was your Stage 2.5 map that was add only. I have also seen on the 720CC map that the I/J map was all blank as well. Any clue one why they might have been made blank?

Emanage ultimate offers many different tuning strategies, unfortunately the tuning method you picked was dangerous to run with a blank I/J map at high boost levels, other tuning strategies don't need the I/J map at all.

p.s. Your link doesn't seem to be working at the moment.

[stealthII]

Originally Posted by BlackStealth

Emanage ultimate offers many different tuning strategies, unfortunately the tuning method you picked was dangerous to run with a blank I/J map at high boost levels, other tuning strategies don't need the I/J map at all.

p.s. Your link doesn't seem to be working at the moment.

That makes sense. I guess I was just under the assumption they were using the I/J map since it was enabled.

As for the link, I guess I was having some web hosting problems the past few days. It should be back up now.

[BlackStealth]

Do you have any datalogs to go with your map? Can't verify anything without some WOT datalogs.

[rossfashow]

ok i am at stage 3 wiring and I need help. it idles at 1500rpm

Below is my data log
7212008-2.lg2

Below is my map
ross.EM2

I've got KN FIPK, DSM sidemounts, dbb dr1000 48 ar stage 2., pte 780 cc injectors. bypassed relay walbro fuel pump (not hotwired) stock fpr.( i am putting together my fuel system next month then I will run 2 walbros with a aeromotive fpr)

[Gray Haze]

basemap linked on first page updated with a way more corrected and accurate version.

[BlackStealth]

Originally Posted by rossfashow

ok i am at stage 3 wiring and I need help. it idles at 1500rpm

You may have too much fuel at idle.

Because you're at stage 3 wiring, more care must be taken. You should never allow emanage to read 100% input injector duty cycle or else it will not operate correctly and run rich. Use the boostcut map to limit the airflow and prevent the duty cycle from exceeding 21ms or 100% injector duty cycle.

Reset your ECU fuel trims, set your boost controller at minimum boost and start over with a fresh map. Make use of the I/J before and I/J after injector sizing; try 360cc before with 0.60 lag and 740cc after with 1.10 lag. If you don't idle at 14.7 AFR, play around with the 740cc and 1.10 lag settings until it does. When you get this setup correctly your car should idle perfectly and drive good throughout the entire range leading up to 100% input injector duty cycle. At this point all your fuel maps, ignitions maps should be empty if you set the correct injector sizing and injector lag times.

Hints:

At WOT, your injector sizing has the biggest influence on your AFR so ignore injector lag times; however, at idle and low engine loads, your injector lag time plays a big part.

Now that you have injector sizing and injector lag times setup correctly you must datalog and find out at what input airflow HZ, boost PSI gets you into trouble (running close to 100% input injector duty cycle). Put this information into the boostcut map to prevent emanage from operating incorrectly. Setup up the Target AFR map and make sure it's working properly. Because of the boostcut limit, your I/J fuel map will be responsible for adding all additional fuel, so we will make an estimate. Having zero's in the map is dangerous as we know it's incorrect and it's safer to over estimate and have the target AFR remove the excess fuel. The target AFR default 0.5% feedback amount should be changed to a larger number such as 2 or 3% so we can reach the target AFR sooner. After verifying everything is good, increment the boost a bit and verify it's good too. You should observe a pattern now and revise your earlier estimates to get the job done faster.

Target AFR Hints:

During a WOT run and when you let up on your throttle to shift, I find the FPR is unable to respond fast enough and causes the wideband AFR reading to temporarily run rich before reading lean. This temporary rich spike will cause havoc. If you always let up at 6000 rpms, you will observe emanage incorrectly modifying the map after 6000 rpms. You need to undo this error.

If you're only working on WOT it's best to keep the throttle position set high to minimize the above error I mentioned above.

After completing an AFR target row it's best to put "-" in there to prevent emanage from modifying the perfect row.

[rossfashow]

Originally Posted by BlackStealth

After completing an AFR target row it's best to put "-" in there to prevent emanage from modifying the perfect row.

what you mean here?