Mr Vapour 76 Report post Posted April 25, 2016 Hello gents. So I'm the lucky owner of an e21. I have a m52b28 going In and am changing the box out, I'm also fitting a mid case lsd. No the e21 needs a mechanical speedo so that won't work. My tach is also buggered. So I need to fit in a speedo and tach. I'm being go use the obd2 and factory ecu Will swapping the clocks over be possible?? Physical is not an issue. My aim at this point to see if be e36 clocks will work and whY would be involved. I can swap Just the rev counter and speedo from an e28 I have seen it before If his was just the e 21 I would be all o we it . it but this obd2 is a bit out of my current knowledge base. Quote Share this post Link to post Share on other sites
