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    Rebuild

    I am looking into rebuilding my m20b25. I think that when brought back to stock spec that it makes enough power. I am curious what others do for a little more power. Just wanted to check my options.
    I am still going to drive this 3-4 a week so keep that in mind. Thanks

    Or if you can point me in the write direction to some info that would be great.

    Vinyl Lettering

    #2
    for a stock rebuild check out what the specE30 guys are doing.
    Build thread

    Bimmerlabs

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      #3
      Presumably you want more than what a E.A.T. Mark D. chip can offer? The big question is if you have emission testing where you live, it makes a difference how you build a motor + your budget.

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        #4
        Well i just found a real nice motor with about 50k miles. So i think I am going to build that up a bit. I was thinking about a cam and some headwork. Any recommendations on a cam? I don't want to go crazy. Is it possible to get a performance cam for under $300?

        Vinyl Lettering

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          #5
          Ireland sells you $190 reground just send your core in.

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            #6
            add another $100 for oversized eccentrics.

            screw regrinds, either just buy a new stock cam, or save for a catcams or schrick ~272.
            Build thread

            Bimmerlabs

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              #7
              Originally posted by nando View Post
              add another $100 for oversized eccentrics.

              screw regrinds, either just buy a new stock cam, or save for a catcams or schrick ~272.
              Do you know about how much those cost?

              Vinyl Lettering

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                #8
                Originally posted by nkroberts View Post
                do you know about how much those cost?
                ~475

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                  #9
                  Originally posted by straight6pwr View Post
                  ~475
                  thanks

                  Vinyl Lettering

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                    #10
                    Check out VAC motorsports...they have pretty good prices on the schrick cam.

                    Duration: 272° / 272°; 284° / 272°; 288° / 288°; 304° / 304°.

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                      #11
                      Another area to consider is the intake....stock is quite restrictive. Miller Performance has something to address it. Beauty of this option is everything is a simple bolt-on process.

                      Rides...
                      1991 325i - sold :(
                      2004 2WD Frontier King Cab

                      RIP #17 Jules Bianchi

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                        #12
                        m50b25 swap...
                        Originally posted by audiquattrot
                        bimmers b4 b*tches....remember that.
                        1990 Alpinweiss 325i - secret 500whp build
                        2000 Audi S4 B5 Laser Red
                        1990 Nissan 240sx - Drift Missile
                        2006 CBR600RR

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                          #13
                          Originally posted by Jon325i View Post
                          Another area to consider is the intake....stock is quite restrictive. Miller Performance has something to address it. Beauty of this option is everything is a simple bolt-on process.

                          http://millerperformancecars.com/ind...mart&Itemid=30
                          I'd really have to take a ride in someones car with the MAF conversion or go against them in a drag race. I am still not convinced that there is an actual gain to be had from the MAF itself (not the software and not the percieved increase due to better response).

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