Comparison of EFI Tuners

Discussion in 'Engine, Fuel and Exhaust' started by Rod Stewart, Sep 26, 2012.

  1. Rod Stewart

    Rod Stewart Active Member

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    So maybe it's time for a detailed item by item comparison of the various EFI systems, so a new user has some idea what to expect? A few basic topics on each should suffice; I have indicated the areas that I think are useful.
    I've added details about the Dobeck TFI, since its the only one I really know anything about.

    MAKE/MODEL: Dobeck TFI Gen 1

    INSTALLATION: Wires in series with stock injector wiring. Requires seat and tank removal. About 1.5 hours.

    BASIC OPERATION: Has pots to enrich mixture for idle, acceleration, high speed. Adds fuel only.

    EASE OF USE: Very easy to tune and adjust. Requires small screwdriver.

    ADJUSTABLE SPARK MAPPING?: No

    COST: About $300

    INSTRUCTIONS: Well written; 4 out of 5.

    CUSTOMER SUPPORT: Very good. 4 out of 5.

    Who wants to jump in with details about their experience?
    Rod
     
  2. Dr. Dolittle

    Dr. Dolittle Experienced Member Contributor Retired Moderators

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    You mean kind of like this?

    Harley Davidson Community
     
  3. BUBBIE

    BUBBIE Well-Known Member

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    I had the TFI installed on my 09 FLHR before modificqtion, then modified to stage one, re-adjust the pot one (green) ran just fine.

    Installed SE255 cams, needed to turn Down on pot one (green). Ran like a scalled Dog...:D

    Also, you are Now running an UN-Lean motor when using the Dobecks TFI/Gen3/future Gen4.

    This is what I needed to add.:D

    signed....BUBBIE
     
  4. Rubyred

    Rubyred Senior Member

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  5. dolt

    dolt Senior Member

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    I didn't see the Powervision, TTS Mastertune, Zippers' Thundermax, Rev Performance EMS or SEST/SEPST listed in Dr. Dolittle's list. For my money, the TTS is state of the art; JMHO.