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Ls1 Engine Build

Ls1 Engine Build
Ls1 Engine Build - My First Stroker Part 4
In logging using EFILive's scan tool, we noted that the long term fuel trims were a little excessive. Some amount of trimming is normal while in closed-loop mode; the PCM is constantly monitoring the air-fuel mixture using the onboard narrowband O2s, and automatically adjusting fuel injector opening times in order to achieve near a stoichiometric 14.7:1 AFR. Though several tables work together to mathematically come up with the command to send to the fuel injectors, one of the main ones is the "Injector Flow Rate" table. An inspection here and running of some numbers revealed slight differences between the table values and our actual fuel injector specifications (which flow 630 cc/hr at 43.5 psi), so numbers in the table were fine-tuned accordingly. View Related Article
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