I am new to this PCM model. After spending three days making more than 60 dyno pulls, we now seem to have an excellent tune on this car. Here's what the dyno chart looks like on 93-octane fuel. Blue lines are stock with 14 pounds of boost. Red lines are with intake, exhaust and 17 psi.
MVIMG_20180109_214253.jpg
First, here are some things I love about this tune.
1. Notice how the turbos spool very quickly now. Stock it was taking 2,500 rpm (2,000 to 4,500) to reach 14 psi. Now we see 14 psi by 2,700 rpm, which is more than three times faster.
2. See how flat and smooth the boost is? This is much more solid than stock and seems very healthy.
3. Same thing with the air/fuel ratio. It's smoother than stock and looks like it was drawn with a ruler.
4. The overall power gains are very impressive with only three more pounds of boost.
Following are some things I could use a little help with in case anyone has additional information to share.
1. What is the best way to increase boost smoothly across the entire rpm range? Specifically I want to increase the current 17 psi flat boost 'curve' to 20 psi and keep it as flat as it is now. There are countless torque prediction tables to edit, but I don't see how to use those and keep the boost curve this flat. Here are two of the seemingly most relevant pages within the VCM Editor software.
Turbocharger Page.png
SC TC Boost Control Page.png
2. There are OEM solenoids that bypass the muffler baffles under certain conditions. Want to tweak these settings, but haven't been able to locate any sort of table within HP Tuners.
3. There is a table for fueling changes when the clutch is depressed, but I don't see a table when I can edit the amount of ignition retard in that scenario.
4. Is there any sort of tuning guide for the E92A PCM in a similar format to this one for the E78?
https://www.hptuners.com/help/index....vanced_e78.htm
Thanks in advance!
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