Is it ok disable "power enrich" and "boost enrich when tuning in HPTuners?
03-06-2010, 01:43 PM
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Is it ok disable "power enrich" and "boost enrich when tuning in HPTuners? Im currently tuning my track car with a STS rearmount kit running on 6 psi.
I have disabled the power enrich table and the boost enrich table.
I would like to use only the primarsy VE table. everything above MAP 110 kpa to 11,1 AFR and everything above 3000 rpm below MAP 110 kpa to 12.0 or 12.5.
Is this an ok way to do it or should i enable Power enrich and boost enrich. This i only going to be a track car, so I think im staying in open loop.
The spark advance is not more than 20 degrees when im on boost.
I have attached my HPtuner Editor file. Would be gratefull for some inputs on my VE and Spark table. the engine is bone stock btw
I have disabled the power enrich table and the boost enrich table.
I would like to use only the primarsy VE table. everything above MAP 110 kpa to 11,1 AFR and everything above 3000 rpm below MAP 110 kpa to 12.0 or 12.5.
Is this an ok way to do it or should i enable Power enrich and boost enrich. This i only going to be a track car, so I think im staying in open loop.
The spark advance is not more than 20 degrees when im on boost.
I have attached my HPtuner Editor file. Would be gratefull for some inputs on my VE and Spark table. the engine is bone stock btw
03-06-2010, 08:19 PM
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You can probably do pretty well just with EQ vs ECT
vs MAP table, but you need PE enabled to get you
there (unless you're full time open loop). This table
does exactly what you are talking about. You would
want to use PE vs RPM, and/or BE vs whatever, to
deal with things like fuel fade, a need to have fatter
at lower RPM, or whatever. Degrees of freedom for
the inevitable nonidealities.
You do not want to (ab)use the VE table to force a
particular enrichment. Its job is to represent faithfully
the -real- airflow. Don't lie. Use the tools that are
meant for the job, for each job. A good VE table is
one that gives you commanded=actual fueling, with
all of the other "stuff" trued up.
vs MAP table, but you need PE enabled to get you
there (unless you're full time open loop). This table
does exactly what you are talking about. You would
want to use PE vs RPM, and/or BE vs whatever, to
deal with things like fuel fade, a need to have fatter
at lower RPM, or whatever. Degrees of freedom for
the inevitable nonidealities.
You do not want to (ab)use the VE table to force a
particular enrichment. Its job is to represent faithfully
the -real- airflow. Don't lie. Use the tools that are
meant for the job, for each job. A good VE table is
one that gives you commanded=actual fueling, with
all of the other "stuff" trued up.
03-06-2010, 10:43 PM
#3
....
I would like to use only the primarsy VE table. everything above MAP 110 kpa to 11,1 AFR and everything above 3000 rpm below MAP 110 kpa to 12.0 or 12.5.
Is this an ok way to do it or should i enable Power enrich and boost enrich. This i only going to be a track car, so I think im staying in open loop. ....
I would like to use only the primarsy VE table. everything above MAP 110 kpa to 11,1 AFR and everything above 3000 rpm below MAP 110 kpa to 12.0 or 12.5.
Is this an ok way to do it or should i enable Power enrich and boost enrich. This i only going to be a track car, so I think im staying in open loop. ....
You need PE and BE to do exactly what you are asking...
Command PE at very low TPS, but set the enable MAP to 85kpA. Command your 12.5 here. Set the BE table to come in at 105kpa and command your 11-whatever here.
PE and BE are multipliers based on VE value basically.
