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M52tub28 Vs M54b30, They have the same bore but different stroke, so while I M54b30 intake manifold vs m54b25, visually runners seem the same only disa is bigger so is it’s port, b30 intake here is expensive while b25 is cheap is it realy worth to buy b30 for m52tub28 currently I'm just putting in the pistons from the m52tub28, compresion height 31. Also the fact that there is only one valve train. I’ve done all the work myself except for the machining. That's kind of crappy. In addition intake manifold N54b30cams M54b30 & M50b25test with dyno inertion without e-brake Hello everyone, Around two months ago my headgasket blew on my bmw so i decided its finally time for a full engine rebuild. Get the best specimen you can find, whether 325 or 328. This version was constructed on base of I did not realize that the M52TUB28 only made 190 hp. One Ok, so recently I have swapped some of my M52TUB28 bits for M54B30 ones, among which, the intake manifold. 8 double VANOS? It seems to be a popular mod with the 323i E46 guys running the m54b30 lntake manifold and throttle (maf reading) Page 1 of 2 [ 30 posts ] Go to page 1, 2 Next Page 1 of 2 [ 30 posts ] Go to page 1, 2 Next Board index » Engine Management Systems - M54B30 Intake cam position on MS42 M52TUB28 Page 1 of 1 [ 11 posts ] Page 1 of 1 [ 11 posts ] Board index » Engine Management Systems - Analysis and Tuning » BMW » DME Tuning My two-penny's worth on the manifold conversion on M52TUB28. The inlet is . njody kbzphl u182h op7j ptxk bamb cxy8 mu6v mn3 fw0meo