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BMW K100RS

Discussion in 'The Turbo "Builds" Board' started by bmw1000cc, Sep 4, 2020.

  1. bmw1000cc

    Joined:
    Aug 20, 2020
    Ï got a bmw mc 1000, fuel injected, water cooled inline 4. Nitrous, an open exhaust, and new radials(vs orig. bias) are only mods now. Going to buy turbo. RBracing used to make a kit, had a RHB5, Only comment i’ve heard is “slow” spooling. Ï want to spool quicker(5psi @ 2-3k rpm) and max @ 11psi near 9k redline.
    Considering
    RHB31/VZ21, RHB4, GT12, GT15
    Im thinking one of these smaller units should do the trick. A boost cntrld wastegate(7psi), manual bc valve, new 1:1 fpr, and intercooler are only planned mods.
    How/where do Ï find motors output, and ARs for turbos. A turbo w internal wastegate 7psi would work well, but don’t want higher. bc valve should be good for 11psi
    Chris
     
    bmw1000cc, Sep 4, 2020
    #1
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