The comprehensive DOHC engine swap thread.

[Vtec?lol]

Thanks :)

[Jand3rson]

It looks like I have a lot more put together than I thought I did, I don't really have that much left to bolt up. RealOEM has been a big help, tho.

[spider2077]

need some help with my m52 swap,
I am down to the wireing, but I have a small problem I am keeping the EWSII for $$$ reasons, I wired up the engine but the EWS is still not working been over the wires 4 times, every thing seems to be in order but still no crank.

here is how I wired it

Main EWS II 61.35-4 4 146 047

1 BLK/Yellow to starter
2 White/purple to it's brother on the connector
3 blk/green to the ignition key
4 green to DME
5 red/ yellow to continus 12V
6 none
7 brown to ground
12 black to pin 20 on the connector also black
13 light blue to transmiter
I am left with 8 black/green - ?
14 blue/red/yellow - ???
12 Black - ??? speed input I think

EWS transmiter

1 to 13 on the main EWS
2 to +12V acc on
3 to ground

Please help cant seem to start the car tryed every thing that I can think of

[Jand3rson]

So what are you people using for an 02 sensor? Is anyone using the Bosch Mustang sensor?

[Wishno87]

So what are you people using for an 02 sensor? Is anyone using the Bosch Mustang sensor?

I just got a new bosch for an e34 for around 75 shipped.

[Jand3rson]

The Bosch Mustang 02 sensor for the M20 is about $35, and all you have to do is splice the wires. I'm just curious if it works on the M50.

[Danny]

If it works on the m20 it'll work on the m50. I used the stock e30 sensor.

[Jand3rson]

Then that's what I'm doing. $35 vs. $75 or more is no question.

[phreshkid]

I just ran full obd1 m3 midpipe and m3 muffler. It did the job.

[Jand3rson]

Where does this mount? It looks like it bolts to one of the intake manifold brackets, but which one, where, and what does it go to?

[Wishno87]

Where does this mount? It looks like it bolts to one of the intake manifold brackets, but which one, where, and what does it go to?

When I got my engine it was bolted to the block a little to the right of where you are holding it but not on the mount arm bolts. Also your rear intake manifold bracket pictured there needs to be replaced with a E36 part if you want to run both brackets and not just the front one. The E36 part bolts to the extra hole on your E36 mount arms.

[Jand3rson]

New random question time!

Using a Getrag 260 with an M20 fly, do I still need the shim plate that goes between the flywheel and the flywheel bolts? #10 in this pic:

[Matt-B]

yea same question here...

[Wishno87]

I would install it. It is there to put even pressure on the FW no?

[Matt-B]

Josh, what goes in 2nd hole of intake boot?

I know 1 hole is for the ICV to boot hose, and the other hole is for Valve cover to boot?