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    RHB5 turbo?

    Good day folks
    I have found in the internet, turbo by IHI RHB5 VJ11 turbo from ford probe and therefore I have a question: will it fit to my m20b25 ( I mean engine displacement and turbo size) if I want to run 0.4-0.5 bar ?

    Regards

    #2
    how many liters is the ford probe engine?

    My bet is it's way too small for an M20B25.
    Build thread

    Bimmerlabs

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      #3
      Well the Probe engine was 2.2 liters Inline 4(actually it's mazda's F2 engine).

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        #4
        IMHO - Waaaaay toooo SMALL

        They were/are small on the F2, they were a medocre upgrade used on 323GTX's (B6T, 1600cc).

        You would end up with boost just off idle, and choked by 4000rpm.
        292rwhp E30 :D

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          #5
          Well I am planning to do the boost on stock motronic, it is possible to run up to 0.5 bar without modifying it! So therefore I need a small turbo, but in future it's possible to make twin turbo maybe:))))) for each 3 cylinders 1 IHI turbo, why not?:) but ofcourse I need to use MS maybe or VEMS in future, but now for just a testing how I can build turbo engine it's enough ... And in addition stock clutch will not handle more than 200whp:)
          P.S it will give me a massive torque from the idle) why not?:D

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            #6
            Yes possible, but serious butt-plug.

            1991 325iS turbo

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              #7
              Well, you are right, doing twin turbo is kind of a brainf*k. Therefore just to try I will install this turbo.

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                #8
                Any boost is better than no boost.

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                  #9
                  not when it's so small that the exhaust restriction causes a loss in power
                  Build thread

                  Bimmerlabs

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                    #10
                    So your opinion is it's way too small !?

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                      #11
                      I don't think he's saying it's way to small, it will work, however if your gonna spend the time/money to install a turbo why not put something decent in that you won't wanna pull out as soon as you get it running. You don't need to run a small turbo just because your using stock internals, you can set boost to be whatever your comfortable with using a appropriate sized turbo.
                      Shawn @ Bimmerbuddies
                      Bimmerbuddies LLC
                      717-388-1256
                      2971a Roundtop Rd, Middletown PA 17057
                      bimmerbuddiesllc@gmail.com

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                        #12
                        Well, you are right, I should spend more money on turbo, in fact once I want more boost, this turbo won't be useful.

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                          #13
                          Come on now let's not judge each other by the size of there turbo's you freaks
                          Open up the exhaust for sure first.. If u can make a single 3inch or go 2.5 duels in the down pipe using a free flowing Y pipe., ultimately do you. Shouldn't you mess with timing for .5 bar?

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                            #14
                            what?
                            Build thread

                            Bimmerlabs

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                              #15
                              Sorry tapatalk only shows me two lines of text when I'm posting.. Was agreeing with previous statement on the exhaust choking it..

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