Just like the previous model PCIII USB this new & improved unit not
only allows you to change the fuel mapping to obtain
better Air/Fuel ratios & yield better combustion in
the cylinders. It also has a nifty optional Autotune
module that will do the mapping for you based on the
custom target Air/Fuel ratios's you select!is way more
important than any choice of exhaust brand for getting
the best possible throttle response & power delivery
out of your Fuel Injected bike!
Autotune
Module
So here's how
it went down. Technically the new PC-V Powercommanders
are only being made for 09 & newer bikes. The PCV for
the 09 1000RR does actually fit the 08 model too, but the
harness does not fit the 04-07 1000RR's
Luckily the
harness for the 09 600RR PCV does fit the 04-07 1000RR
with 100% Plug-N-Play connection
Added the Autotune and it works!!!
I was having some sort of hard starting problem which I
thought may have been a result of the bike trying to run
overly rich at low rpms during the start up cycle. Second
thought was it might also be something to do with the HRC
ECU I am using instead of the OEM one, but did a little
research on the forums and found others with the same
hard starting problem.
Updated the firmware in the PCV and the bike instantly
started 3 times in a row with zero of the previous
symptoms. Got my fingers crossed hoping that is the end
of that problem because everything else is working
exactly as it is supposed to!
Specifically tested the map switch function to see if the
Autotune updates the trim tables & it works very
well...
Just had to label the switch because I kept forgetting
which way is which...
UPDATE:
Spent the weekend at the race track
& have great news!
First let me give you a little background on my 2004
bike.
I originally ran an HRC ECU with a PCIII piggy backed on
it that I mapped out and was very happy with the results.
Later I took the time to map the HRC ECU itself, but left
the PCIII attached with zero values in it just in case I
ever needed to make some quick adjustments. The overall
power results were marginally better with the HRC ECU
mapped rather than the PCIII, but the throttle response
suffered in certain areas especially at low throttle
trying to get back on the gas etc so I used the PCIII to
iron out some of those problem areas
To get apples to apples comparison on this new PC-V &
Autotune I had to go back & put the default map back
into the HRC ECU so that the Powercommander PC-V would
now have to do all the work I had originally done with
the PCIII on the dyno.
The end result is that in about 4 sessions on the track
the Autotune managed to do what took me hours to do on
the dyno. The cell numbers in the maps were almost
identical down to 1 value off the original map I created
with the PCIII.
I had one problem where I think the engine temp dropped
too low after entering the track with a hot engine
(normal operating temp) and the air flow cooled the bike
too quickly down to like 148 degree range and I came in
too early which caused the A/F sensor to pick up some
over rich conditions & tell the trim values to
majorly lean out the top end range of the bike. The
safeguards in the software force the user to review the
trim values before they are accepted (written) to the map
in the PC-V and of course when I saw those unusually lean
values I cleared the trim instead of accepting it.
Basically as its been said before you do need to have
some understanding of the process & tuning procedures
or you could damage your engine, but all in all I am very
impressed with the capabilities of this unit as well as
the ease of use.
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