'90 325i S52 to S54 '06 Z4M w/ ZF 6 Speed

[R3Z3N]

Added Valve Cover Oil drain, updated a few links to products. Received my AC CAN controller wired from Andrew325is, just need to add 2-3 wires. Still confused a little, but knowledge will come while I install...

Hoping to install engine this weekend and oil lines....

[R3Z3N]

Checked the valve clearances, updated here page 1.

Not bad! I hope to turn this into a chart with formulas so thinking is removed, and can be changed from MM to IN and back....

[roznic]

can't wait...

[R3Z3N]

Yes, will be running the variable displacement AC compressor with gpetersons circuit board

[Jb325is]

Are you still running A/C?

Just to clarify, for those looking to do the swap, with no a/c there is no clearance issues with the water pump. Pusher fan on z3m radiator works awesome

[R3Z3N]

After looking further Z4M and E46 M3 waterpump/thermostat parts are the slightly different. Z4M waterpump /clutch fan threads do not have to be cut. The M3 waterpump pushes the clutch fan further toward the radiator. This is an issue for E46M3 S54 swaps into the e30 chassis as the waterpump needs to be shortened/cut to clear the radiator and SPAL fan.

Also, the hole on top of this pic, my thermostat housing does not have. This is where the coolant overflow piping in front of the engine would connect to:
E46M3 waterpump and longer profile w/ hole for hard pipe.


Z3M/4M waterpump, notice the shorter profile.


I'll consolidate this into my DIY

[R3Z3N]

^I'll take a pic to show why as well. The end that follows down to the engine arm is in the way of the power steering reservoir .

[Loupoz]

Why not just use the Z4M Pipe?

[R3Z3N]

I used e30 m3 tank on mine and prefer that setup.. I also have a brand new Z3M pipe if you want to go the other route.

To use the e30 tank I need E46m3 water pipe Hardline off pump in front of engine. What else beside e30 m3 overflow tank? I am interested in z3m pipe if I go that route.

Sent from my Nexus 6P using Tapatalk

[Jb325is]

I used e30 m3 tank on mine and prefer that setup.. I also have a brand new Z3M pipe if you want to go the other route.

[jpod999]

Oh man this is going to be great.

[iwantspeed]

Subscribed this will be good

[R3Z3N]

Finalized O2 wiring and Intake Manifold bracket mount from old engine arm.

[2mAn]

Awesome

[R3Z3N]

Thanks! I am hoping it is as quick as a 2016 Toyota Camry S. I can tell they are quick otherwise Toyota would not have put those massive side skirts on them for ground effects. So 2 years ago I installed the IS side skirts. SO MUCH MORE DOWNFORCE. At Fontana it helps as the rear end wants to rotate up turn 1 and 2 at 140. I'd go faster but the Skylines out there scare me. /s

BTW: /sarcasm

Currently having Andrew add wiring to his wiring harness for gpetersons AC controller

UPDATE!: Files for the below are linked in OP. No longer need to pay anyone for ECU coding.

gpeterson is also flashing my ECU to remove EWS, SAP (secondary air pump), Post Cat O2, Evap system, set 8200 rev limit, dyno mode, and sport mode memory. Oh yes, using the M3 EKP module for fueling. One can now flash the ECU easy enough by themselves, but I need to get working on the mechanical side as much as possible and let others do what they do best.DME flash DIY

Once those 2 are back, I should be able to drop the engine in for wiring test fit and misc hoses. Still debating easy way: coolant overflow in stock location with Z3M coolant pips. Hard way+ expense: E30 M3 overflow location and figure out the piping. Both relatively simple, but time consuming enough.