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Ramp Run lambda after Steady State Tuning

Practical Standalone Tuning

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Hey guys,

Haltech Elite 2500 (2JZGTE)

First time tuning on a Dyno. I have followed the 10 step process and tuned the fuel using steady state up to 4500 rpm.

I then tuned the timing in steady state up to 4000 rpm. When I did my first ramp run to 5000 rpm I noticed that the lambda readings were ~4 to 5% leaner than target from 3000 rpm onwards from the datalogs. Is this normal and is it ok to increase the entire row by this 4 to 5% to get to the target lambda?

Thanks for your inputs.

hello yes this is totally normal

Thanks Ross

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