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Hangetsu
Posted on Monday, May 29, 2017 - 02:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Regarding performance upgrades, it seems a Power Commander is a standard go-to for most other makes, even HD's. Why have I never seen them used with Buells?
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Tootal
Posted on Monday, May 29, 2017 - 05:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

HD uses a different FI system than Buell did.
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Froggy
Posted on Monday, May 29, 2017 - 05:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

They exist but don't work great with Buell DDFI. Tuning a Race ECM simply works better.
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651lance
Posted on Monday, May 29, 2017 - 07:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The piggy back tuners and the DDFI system fight each other and you get nowhere with tuning.
Reflashing the ECM or changing the ECM is the best way to go.
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Firemanjim
Posted on Tuesday, May 30, 2017 - 12:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The problem stemmed from the Buell's "learned fuel area" because if you used the PC to tune in this area at anything other than the 14.5-15.1 it wanted to see the ecm would change the entire map so the O2 sensor saw that ratio again. You could use a PC if you knew where your ecm's Learned Fuel Area was and left it alone. But why bother when you can use Ecm-Spy for free---?
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Teeps
Posted on Tuesday, May 30, 2017 - 11:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Firemanjim is spot on.
I bought a Dobeck Performance tuner for my '06 Ulysses.
Epic fail!
The first unit was DOA.
The replacement worked (?) But it never produced any difference in performance. At least that I could detect.
Removed it a few months after installation a $233 lesson learned.

Don't waste your money on any piggyback tuners for your Buell.
Better to get an OEM race ECM.
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