Interest in s54/s62/etc. plug-n-play?

[triggrhaapi]

www.rif.org

I did read the thread, douche. There's quite a bit of electronic trickery on the modern BMW motors that makes a transplant a PITA. I remember an E30tech thread about a S54 swap (granted it was SMGII) that was a MASSIVE pain. The whole car harness had to be reworked.

[BeirBrennerE30]

See sig...

Dont need to rewire the car or use another engines wiring. You just need to make an adapter harness that plugs into x60004/x6011/x6012 on one end and c101/Drive-by-wire pedal/solid state fuel relay/sport button/etc.. Then you need to do some trickery with the ECU.

you will not have a CEL but you will have an OBD2 port for diagnosis... it may be possible to use the newer CAN OBD protocol but I havnt tried too hard yet. Vanos works, DBW works, sport button works. You can delete the cats and the MAF if you want... it really opens the engine up. This of course means you can run the engine without the intake manifold on ;)

[triggrhaapi]

A buddy of mine has an S54 swap in his E36 that has the same done to it. One of the interesting problems he's having is that you can't run a VANOS test without clearing all the fault codes, and the setup you're describing left him with a non-resolvable DSC CEL code.

So, no, that setup isn't necessarily viable in the long term.

[hoveringuy]

Just run it OBD1 and be done with it.

[triggrhaapi]

Just run it OBD1 and be done with it.

And how do you propose one does that?

[hoveringuy]

413 ecu. Convert the cam trigger signal to OBD1 format. Independent VANOS control. Scale the ECU for higher rpms.

[triggrhaapi]

413 works with drive by wire? Or would you have to use S50B32 T/Bs?

[hoveringuy]

413 works with drive by wire? Or would you have to use S50B32 T/Bs?

413 doesn't do DBW, but it's not difficult to to build a small control circuit, particularly for the S54 which doesn't have the limp-home non-linearity in the throttle bodies.

Or get a cable bell crank conversion for $150.

[triggrhaapi]

Hell with that, I'd just do cable throttle. Infinitely easier.

[FredK]

Dude. How complicated can the signal the DSC is sending the DME be. I'm pretty sure the DSC is doing a lot of the heavy work work of distributing brake pressure and determining what the individual wheel speed sensors is. It probably modulates power by pulsing a squarewave signal sent to the DME.

What is the best way to tap into that signal? Maybe some needle-like scope probes?

[triggrhaapi]

The DSC signal uses wheel speed sensors. It's quite complicated.

[FredK]

Is there some type of algorithm you know at least the basics of?

[matt]

Dude. How complicated can the signal the DSC is sending the DME be. I'm pretty sure the DSC is doing a lot of the heavy work work of distributing brake pressure and determining what the individual wheel speed sensors is. It probably modulates power by pulsing a squarewave signal sent to the DME.

What is the best way to tap into that signal? Maybe some needle-like scope probes?

CAN bus.

I have info on that if anyone wants it.

[Pzary3233]

413 doesn't do DBW, but it's not difficult to to build a small control circuit, particularly for the S54 which doesn't have the limp-home non-linearity in the throttle bodies.

Or get a cable bell crank conversion for $150.

After reading his thread on his M54 swap this is a very interesting idea...

HOWEVER I would be interested with a PNP setup for the S54...

[kristov]

How big is the difference between the S54 and the S62?

Is the S62 worth the extra cash and work?

I had an S54 in E30 so I know how that works.