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Evo 8, SD, S90 70mm, ASNU 1050cc : top lean tip-in

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Old Jun 5, 2016, 12:17 AM
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Evo 8, SD, S90 70mm, ASNU 1050cc : top lean tip-in

Hello,
From converted car to SD I always suffered about lean afr during tip-in.
Now after switching to ASNU 1050cc and FIC resistor box this behavior is much worse.. Too lean in tip-in.

Max IPW accel enrich : 4.61ms
Moltiplicator : from 0.38 to 0.70
TPS delta : + 30 units to all table.

Any suggestions ?

Old Jun 5, 2016, 05:28 AM
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Make sure your injectors are scaled in properly and adjust your rpm vs. VE table.
Old Jun 5, 2016, 05:57 AM
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Originally Posted by Tuxevo
Make sure your injectors are scaled in properly and adjust your rpm vs. VE table.
Scaling :975
Latency 14v : 1.224ms (like asnu datasheet says)
Old Jun 5, 2016, 08:14 AM
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What do your trims look like?
Old Jun 5, 2016, 11:46 AM
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Mid and low around -4
Old Jun 5, 2016, 03:10 PM
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This thread will help. Lean tip-in was a common problem so you'll find lots of discussion about it.
https://www.evolutionm.net/forums/ec...ched-roms.html
If your rom has the 3D RPM vs. VE table you'll have more adjustability, but the 2D table in the earlier rom works just fine.
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