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Thread: 08 VRSDX with Fat Shots

  1. #1
    Join Date
    Aug 2007
    Posts
    12

    Default 08 VRSDX with Fat Shots

    Bob,

    Reading the various threads, your recommendations state to use eight (8) discs with a stock air cleaner and no airbox mods. Typically, everyone first changes the air filter to a freer flowing, washable type such as a K&N or Screaming Eagle, then pipes are installed.

    In my case I installed the K&N filter, but have the stock airbox (no holes or modifications). I just installed the Fat Shots. What number of discs will be a good starting point, less than eight (<8) since I got the aftermarket aircleaner or will eight (8) be a good starting point?

    I want to avoid getting a SERT or PC until I can get it under my wife's radar, if you know what I mean.

    Mike

  2. #2
    bschultz Guest

    Default

    You might want to start out with 6-7 discs and work your way up if top end is suffering.

  3. #3
    Join Date
    Aug 2007
    Posts
    12

    Default Fat Shots

    Bob,
    Decided to pull the K&N and put the stock filter back in until I decide what to do to enhance the Fat Shots - SERT or PCIII.

    I saw the dyno sheet you posted with the HP numbers on the Fat Shots, would you have the rest of the dyno information showing the air fuel ratios for these combinations. I understand these dyno runs were without any fuel enrichment.

    thanks
    Mike

  4. #4
    bschultz Guest

    Default

    That is correct.

  5. #5
    Join Date
    Aug 2007
    Posts
    12

    Default air fuel ratios

    Bob,

    What is the air/fuel ratio HD is using without enrichment? Does it change with addition of the FatShots?

    thanks again

  6. #6
    bschultz Guest

    Default

    On the new HD "closed loop" FI system we found the A/F ratio to levels out about 14.6-14.7 (even with the Fat Shots).
    During open loop/fuel enrichment (WOT) it jumps up about a full point.

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