I ended up with a m20b25 swap.. I found an early b25 (CR9.7:1 winkeye )in decent conditions for a good price with getrag 260 gearbox, propshaft and LSD diff 3.45 (probably a bit too long.. I'll try). I will convert to late models waterpump and motronic 1.3 using my b20 sensors, ECU, and stuff. I'm a...

Thanks for the replies. I know that has done a lot of time, but I'm still a bit worried about doing that, especially for long-term reliability. The cost for doing that is also really high in the place where I live, I don't want to re-open the engine or making a new one after let's say 30'000 km. I m...

I would like to find the topic too!

Some months ago I was looking for info to build the m20b20 to b28 thing (I really thanks reggid for all the useful information). The only thing I'm worry about now is the water jacket / cilinder thickness in b20 vs b25. I'll explain: If I bore out the b20 cylinders from 80 to 84mm, will I get the sa...

Thanks. Yes it seems iX has a different control unit but same pump. I checked also the lines, iX seems to have different lines too. 320i and 325i are identical btw. So for what I understand there is only 1 version of ABS for e30 325i/320i, they did't change pump/control unit during the years. It's r...

Does anyone know if there is any differences between 325ix ABS and a standard e30 ABS? I ask because I'm thinking in retrofitting one on my 320i vert, and I found a full 325iX abs with pump, lines, sensors and computer module. I will also have to swap front struts and rear hubs or something, so I'm ...

Any experience with Wiseco forged pistons ( https://www.tzr-motorsport.de/epages/61911476.sf/de_DE/?ObjectPath=/Shops/61911476/Products/KE317M ) or other new pistons available in europe/UK shops? I would buy a set of new pistons from IE motorsport, but import taxes almost double the price.. so it's ...

Thanks, good picture! I'm in touch with a guy who has two m52b28 cranks (the right ones) and should get a set of good used pistons and good 885 head! All euro pistons are ok for the build? Or I need one specific (I think there are two or more kinds with different CR, depending on cat/no-cat). edit: ...

Thanks a lot reggid for all the info. - best would be subjective, for a 2.8L an M52b28 is probably the best;) but you want the early ones without the big counterweights What about this crank? I have to look at the m52b28 NOT TU crank? Or maybe there are two different m52b28 not TU cranks..? Is it ea...

Guys thank you very much for your replies, you are helping me a lot. The alpina 2.7 engine is actually the base idea behind the 2.7 builds, I think, and I don't think it suffered of unreliability (but idk actually!). Maybe the smaller 80mm bore of the b23 has something to do with the piston slap? Be...

The problem that I have heard is that some early 80mm blocks were too thin in places to bore to 84mm. It is what I have heard not what i have seen (yet) in practice. I am a way off stripping the B23 so do not know for sure. An '88 block should be OK though. Lots of people have done 2.7, 2.8, etc et...

people have bore 80 to 84 mm id start with a 84 if i could depends what is available and cost I want to use my 80mm block for two main reasons: - Cost: can't find m20b25 engines under 1500€ in Italy. - Law: shitty Italian bureaucracy don't approve any modifications to engines or other big modificat...

cheaper to swap a nice running B25 alternatively a nice 2.7L (m20b25 slugs and head) from 3rd option from here https://www.e30zone.net/e30wiki/index.php?title=Building_a_2.7 but its quite a bit more work Thanks for the answer reggid. I'm trying to make a work plan and price quotation for the work, ...

Hi guys, I used to have a good running e30 320i convertible, bought 4 years ago in Italy. I invested some time to repair stuff with easy DIY jobs (vert top, brakes, ECU chip and electrical etc..) and of course base maintenance (belt, valve adjustment, engine/gearbox/diff oil etc..). Unfortunately on...

Do you have pics of the "Check sport interior incomplete" from the cabrio?
Thanks!