Need to Retune the car after LSX install???
Need to Retune the car after LSX install??? Re: The need to retune the car after LSX install??
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Hello,
If you have a H&C car w/all the goodies and a good tune, will it be necessary to retune it after upgrading w/the LSX???
Its my understanding that if you've had the AF ratio set to the generally accepted performance ratio of 12:1 (as mine is), then the computer will recognize the newly increased airflow and adjust accordingly. IOW, it'll increase the fuel flow to bring the ratio back to 12:1.
Am I missing something? Just thought I'd ask the collected brain trust about this as this is exactly where I am regarding an LSX install next week.
Best Regards
Steve
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Hello,
If you have a H&C car w/all the goodies and a good tune, will it be necessary to retune it after upgrading w/the LSX???
Its my understanding that if you've had the AF ratio set to the generally accepted performance ratio of 12:1 (as mine is), then the computer will recognize the newly increased airflow and adjust accordingly. IOW, it'll increase the fuel flow to bring the ratio back to 12:1.
Am I missing something? Just thought I'd ask the collected brain trust about this as this is exactly where I am regarding an LSX install next week.
Best Regards
Steve
Originally Posted by steve-d
Well regardless what the optimal setting is, will the computer strive to achieve the setting given the increased airflow?
Regards
Steve
Regards
Steve
My LTFTs went from 0 to +5% & I got 3* of KR, so I got a custom tune from RWTD (James richened it up ~ .5%) & now they're back to 0. So yes, you should get it re-tuned. Though I have heard that as long as the trims are under 10%, the PCM can compensate without any problems. My dyno tests do not support this...I usually pick up a couple more hp by eliminating the KR.
