DIY: In depth M52/S52 OBD2 swap

[craiggroves91]

Hey everyone, I realize that the pictures are down. It looks like the image hosting site I used back in the day is no longer around. I might have some of the pictures on my computer or an old phone, but I fear that some of them were directly uploaded to the hosting site and I might not have them. So I'll either have to hunt or try to take some new pictures of what I can.

I am super busy with school, so idk when this will happen. I have made some edits to the OP already in regards to links and stuff and will fix the pictures slowly but surely.

I'm sorry gang

[Rdannyr]

Most don't work for me either. Hopefully the go back up. I will need these soon to lol.

Sent from my LG-VS985 using Tapatalk

[Sirjustinderek]

are these pictures working for anyone else? just shows a little box with a ? in it. Kinda need this as a reference haha

[Braziliangabriel]

You live in California, so I'm assuming you took it through a BAR inspection. What's needed to pass?

[Curt Hayes]

I have done the eta swap in my e30, and it took me about 20 hours, I am curious about how much this would be? I have a e36 m3 I am going to be swapping whatever I need off of. Any idea or am I asking too much here... Anything helps.
Thanks,
Jimmy

I've seen people say they can do this over a weekend, but it took me several months of evenings and the occasional weekend day to get it done. Seemed like every time I turned around I was missing some part.

[Curt Hayes]

You need to shorten and thread the 944 booster input rod, but it is the same thread diameter and pitch as the E30 clevis.

Did this any found out that there is one other difference between the e30 and the 944 boosters: The e30 one has a bump out where the booster bolts against the firewall, the 944 is missing that.
E30:


944

The 944 just requires a much closer firewall clearance than the stock e30 one does. Required that I trim away a lot of the firewall insulation (no big deal), and also relocate the brake line heading to the RF wheel (bigger deal). Doesn't really fit all that well, but good enough. If I'd have known about it I would have either gotten a different booster or made a spacer plate. As it is, I can't go the spacer route having already cut off the input rod to the right length.

After looking at some 944 images just now, it seems as if they're not all the same. However, mine was just like the one shown.

[ST1G]

am I the only one who sees dead photos in post 1?

[Jimmy85'E30]

How many man hours?

I have done the eta swap in my e30, and it took me about 20 hours, I am curious about how much this would be? I have a e36 m3 I am going to be swapping whatever I need off of. Any idea or am I asking too much here... Anything helps.
Thanks,
Jimmy

[Sh3rpak!ng]

You couldnt scan codes with OBD1? My BAUM tool disagrees. And my stomp test. Just saying......

touche. Didn't mean to sound like you can't. Obviously you can. Not starting an obd1 vs obd2 thing here...

[mpowerful]

You couldnt scan codes with OBD1? My BAUM tool disagrees. And my stomp test. Just saying......

[Sh3rpak!ng]

Cheap != better in the tune regard.
http://www.r3vlimited.com/board/showthread.php?t=327183

+1 I run a MMW ECU with M50 manifold and all emissions and EWS deleted. It's flawless and turned OBD2 into a plug and play install. Just as simple as OBD1 imo but now I can scan codes :D

[328ijunkie]

Cheap != better in the tune regard.

http://www.r3vlimited.com/board/showthread.php?t=327183

[eurolife]

Nevermind, I realized they posted 3 posts above me :|

[eurolife]

Does anyone have a contact for DesertBMW, Id really like to talk to them about getting my tune done as well.

[craiggroves91]

Really cool to see that people are still using this thread as reference. I wish I could be more involved with helping people out that message me, but school is killing me lately. Good luck to anyone taking on this swap!
It's been very fun to drive and this setup hasn't failed or given me issues!