i just finished my m50b30 with s52 cams, runing a conforti 2.5 stock cam tune and it moves, cant wait to install the headers 3.5maf and 21.5lb injectors and RKtune it.
It's the individual throttle bodies for each piston too. As far as head work, it's grind them open as much as possible without hitting a water jacket. It's not pleasing to the eye though.
In another forum a guy is building a s54 and throwing big dollars around.
His head looks like this:
s54 hack port2.jpg
Totally munted up the ports between the cylinders there and the other ones are ragged and not pretty looking either, that one is just the worst but the one to the left looks the same too.
He said:So per the other thread, I've confirmed that the head is stock. No shit - it left the factory looking like that. I'm still shocked when I look at the photos that (1) something looking like that left an M Division factory, and (2) that work was done with CNC, not by hand.
Last edited by fo3; 06-18-2018 at 05:48 AM.
I’m curious as to how an M50B30 feels compared to an M50B25... does it have a bit more low end torque or is it all top end power?
1995 525i 5-speed - Thread
Im not sure how straight forward my answer can be but here it goes, m50b25 stock cams and m50b30 s52 cams feel very similar, except just more torque everywhere on the new motor. Very stock like powerband but now I actually feel like im getting pushed into the seat. It also doest die as much after 5500 as stock cams did. I did upgrade to the m54 intake cam on the b25 and lost a ton of low end with it but did gain a bit on top end.
Im also awaiting a proper tune, currently have a conforti b25 stock engine tune. Debating injectors and after that Ill install the long tube headers and 540 maf i have with tune for those.
Last edited by Hofmeister; 06-21-2018 at 09:37 PM.
Put about 160 mile son the car so far. Still need to tweak the tune and I am getting some dnoise from the diff... (only thing I didnt change) : Lowered now on eibach springs and put on the style 5s finally
20180825_112824 by Dan Tanedo, on Flickr
20180825_111102 by Dan Tanedo, on Flickr
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