I have finally installed my M50B25 inlet manifold!
It has been sitting in my garage for at least 6 months, firstly waiting for me to pluck up the courage to do it, then finding out my insurance wouldn't cover me with it fitted!
I finished it at about 11.00 this morning and have been driving it pretty much ever since!
What a nightmare to install though! I started it yesterday morning!!! I just bought the manifold and made the fitting kit myself as I went along, it's not the prettiest looking but it is almost all hidden underneath. I think in hindsight I would have been better off buying a ready made kit and saving myself a few hours!
I thought I had finished it last night just as darkness fell, I started it up and it just died, I could only keep it running with the revs at 4000 and it really wasn't happy! I got the torch out and it took about 30 seconds to find the ICV hose had come loose, right underneath the manifold, right at the back. So this morning it all had to come out again.
I started it up and took it for a test run, the difference wasn't huge but it was noticeable, and it sounded better too. I went back home and took it for a proper test this afternoon, wow, what a difference. As soon as I set off I could feel and hear the difference, it's like it needed turning off and on again to reset something. Over 3000 rpm it just flies, it's at 6500 before you know it, and the noise if fantastic. There is no obvious loss of torque at the lower end, it seemed to pull away at 30 in 4th ok as normal (if that's what you want to do, it sounds much better in 2nd though