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MR12 to U4.4 on SS R6

Discussion in 'Tech' started by EnvyCycles, Mar 12, 2019.

  1. EnvyCycles

    EnvyCycles D.RoD

    Hey guys,

    Our race org has decided to put a spec fuel and its going to be U4.4.
    Both of my R6 are tuned for MR12 and I will not have time to get them tuned.
    Any suggestions on fuel/timing adjustments on a YEC ECU?
    Also how many HP should I expect to loose from the swap?
     

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