V6 Injector Auto-Phasing.

[nashD]

TransAm: My friend might need this information for his new incoming Camaro SS project. It's in the shop for installation of the new brake pads and tires from 4WheelOnline this week. We'll check it out this weekend.

[81 TransAm]

There's lots of information on IEA tuning. Here's a thread I started. Post # 54 has some Excel spreadsheets for calculating IEA:
https://forums.holley.com/forum/holl...d-angle-tuning

[hoffmanbrent]

Is there anyway to calculate when the injector starts to fire? For example at 1000 RPM if the IEA is -80°, what would be the opening point in HEFI degrees? Been messing with Auto Phasing feature, not downloaded, and I was curious when the injector pulse is actually centered around the ICL in the RPM range, because the IEA is constantly changing. At low RPM it's not center with a IEA of -80°. The ICL in HEFI degrees is about -70°. My thinking is the IEA would have to be about -45° or closer to zero HEFI to be center around the ICL.

[hoffmanbrent]

Thanks for info. Maybe I'll just work on idle and part throttle, leave the rest for dyno tuner.

[Danny Cabral]

Nothing has changed. http://forums.holley.com/showthread....0396#post70396 (Injector End Angle Tuning Information)

[hoffmanbrent]

I've read concerns about the Injector Auto-Phasing in previous version populating the table incorrectly. What's opinion on using it in the V6 EFI software? Attached cam card is for a LS 427 with black label heads. From the reading, thinking to try -200° at idle and 0° at WOT. If I use the Injector Auto-Phasing I get totally different numbers. I'm just trying to get close before Send To ECU.