FIC2150 tuning notes
Feb 20, 2017, 04:20 AM
#137
Yeah, 15 load (at loc_1180) sounds about like the lowest I see.
For the USDM Evo 9, the requested linear FPW is at FFFF6C30/31. This variable corresponds to the values in the input axis (aka x-axis) of the PW linearization table. Its a 2-byte value. I assume you'll know where to find it in the ROM you are tweaking. You'll need to pick a spot in the MUT table to log it. I log it at MUT 2B/2C. My EvoScan definition is:
<DataListItem DataLog="Y" Color="" Display="2-Byte Sync FPW" LogReference="2BSyncFPW" RequestID="2B" RequestID2="2C" Eval="0.008*x" Unit="ms" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="66" ChartMin="0" ChartMax="66" ScalingFactor="1" Notes="" Priority="1" Visible="False" />
For the USDM Evo 9, the requested linear FPW is at FFFF6C30/31. This variable corresponds to the values in the input axis (aka x-axis) of the PW linearization table. Its a 2-byte value. I assume you'll know where to find it in the ROM you are tweaking. You'll need to pick a spot in the MUT table to log it. I log it at MUT 2B/2C. My EvoScan definition is:
<DataListItem DataLog="Y" Color="" Display="2-Byte Sync FPW" LogReference="2BSyncFPW" RequestID="2B" RequestID2="2C" Eval="0.008*x" Unit="ms" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="66" ChartMin="0" ChartMax="66" ScalingFactor="1" Notes="" Priority="1" Visible="False" />
I just logged this item and it gives me 18ms when cold to 14ms when warmed up, is there any chance just scaling might be different?
Current MUT table shows: 993A 993B @ 2B / 2C
where 2 byte injector pulse width logging is 9938 9939 @ 29 / 2A
Jan 10, 2018, 12:39 PM
#138
Evolving Member
Well it fixed my lean spot between 2000-2600 with the radium rail/damper but I still have a lean tip in from a full stop. I can fix that by making the car go open loop but is it possible to fix in closed loop?
Apr 2, 2018, 10:06 PM
#140
Evolved Member
An update on my setup, I finally settled on a Boomba fuel rail that accepted the stock Evo9 end fittings.
This has a 1/8 female NPT port for whatever you need to add.
So I got the new trick Radium pressure damper with manifold reference.
This has a 3/8 male NPT port and I was unable to source an adapter in Oz to marry the damper to the rail.
However, Mettle Air in Niagara Falls have a suitable brass adapter 120-CA, and the whole setup works fine and no leaks.
This has a 1/8 female NPT port for whatever you need to add.
So I got the new trick Radium pressure damper with manifold reference.
This has a 3/8 male NPT port and I was unable to source an adapter in Oz to marry the damper to the rail.
However, Mettle Air in Niagara Falls have a suitable brass adapter 120-CA, and the whole setup works fine and no leaks.
May 3, 2018, 10:44 PM
#142
Evolved Member
The Boomba rail did in the end work out ok for me, but looking at the revised Radium rail/damper and fittings setup, that is in my opinion the best setup for the Evo 56789.
Aug 14, 2023, 11:03 AM
#143
Evolved Member
Bringing this thread back alive.
will this table affect Open Loop fueling ?
for requested fpw 1.264 and greater /
adding 1.02 ms to all larger requested fpw what will be the affect ?
will this table affect Open Loop fueling ?
for requested fpw 1.264 and greater /
adding 1.02 ms to all larger requested fpw what will be the affect ?
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