L31MaxExpress
I'm Awesome
After all these years. Stumbled across how to do it. It works. Working with a 350 capable of doing 6,500+ this weekend. Set the last cell in the minimum dwell time table labeled 2,400 rpm from the factory 2.004 to 1.75 msec and 6,500 limiter now. The computer was commanding minimum dwell time at high rpm that exceeded the amount of time available between coil firings resulting in ignition misfire that felt like a rev-limiter. The Black Box can finally rev out over 5,800 rpm. Wish I had known this 15 years ago! The 0411 has shorter dwell as the rpm increases. 1.75 should allow for atleast 6,500. The feeling before altering the dwell time was exactly the same as the old TBIs when the injectors went static. It would lose power and misfire.
Will also say its making close to 450 hp on a stock GM MFI spider and ported truck intake.
Will also say its making close to 450 hp on a stock GM MFI spider and ported truck intake.
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