Car is a 2020 DF Goblin with the drivetrain and electronics from a 2009 Pontiac G5 2.2 LAP motor. Car ran N/A for 2 years before supercharger install.
I added mechanical supercharger components from a 2006 LSJ.
Injectors are Bosch Green 42lbs. https://zzperformance.com/collection...42-injectors-5
First tune is the baseline I made to clean up nuisance items and set injector base flows.
Goblin SC WITH FUEL MODS.hpt
Second tune is as received from the tuner.
Goblin Tune as is from Nate.hpt
I noticed driving home from the tuner that the car was in power enrichment mode anytime manifold pressure was above 6"HG vacuum as measured on my boost gauge. I could tell it was in PE because my wideband was reading ~12:1 constantly. I thought this was a little odd, but not a huge deal. When I looked at the tune, I saw Throttle % for PE was at 5% across the board and 75kpa. So it was in PE a lot. I think I'll adjust that to 100kpa and maybe 20-30% throttle.
My biggest question is how important is it to change the values in the offset vs. press. vs IGNV table? These weren't touched. The whole reason I took it to someone for tuning is because I wasn't super comfortable with the injector data. Maybe I did a better job than I thought.
Outside of an idle hang that I plan to tackle this weekend, the car runs well. It holds dead at 12:1 AFR during WOT pulls. I haven't logged since I got it back.
I'm happy to take input from those with more knowledge than me.
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Originally Posted by Dsteinhorst
