I've been doing a deep dive on this swap for about a week now and I'm trying to learn as much as I can before I pull the trigger on buying the two vehicles.
The plan is to swap a Mercedes OM617 turbo diesel (from a 300SD) into a 3rd gen Camaro. This will eventually become my daily driver, so I'm aiming for reliability first and fuel economy second. I know this won't be a bolt-in swap and I'm expecting to do fabrication work.
I have a couple of questions:
1. Wiring
From what I've researched so far, it seems like the best approach is to leave the Camaro's factory fuse box in place for the body electronics (lights, wipers, heater, etc.) and build a separate engine fuse/relay box for the diesel in the engine bay. The two systems would only be connected by a few signal wires (ignition, start, gauges, reverse lights, etc.).
Is this the right way to do it? If you've done something similar, how did you wire it?
2. Fitment
I know I'll need to fabricate engine mounts and probably a transmission crossmember, but what other fitment issues should I expect? Things like:
- Oil pan/steering clearance?
- Firewall clearance?
- Cooling system?
- Driveshaft?
- Exhaust routing?
- Suspension upgrades because of the engine weight?
I'm trying to make a complete list before I start buying parts.
If you've done an OM617 swap into any vehicle—or a diesel swap into a 3rd gen Camaro—I would really appreciate any advice, lessons learned, or things you wish you'd known before starting.
Thanks in advance!