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

[Staszek]

Never mentioned anything about fueling in my post :up:

But I see where I screwed up my wording. I'll revise that!

Ok I misread as well :) Made my nervous for a second.

[dude8383]

Never mentioned anything about fueling in my post :up:

But I see where I screwed up my wording. I'll revise that!

[Staszek]

Starting up the build on my car and this is the first time I'm really jumping into the details of these swaps.

I plan to run A/C as well... most likely keeping the original s52 a/c compressor because it all works currently. My question to you is, what was the final configuration that you went with?

-Z4M water pump
-Z3M coolant line from pump to expansion tank and heater core?

In this post the o/p mentions that:

https://www.bimmerforums.com/forum/showthread.php?2169783-My-E30-S54-6-Speed-Swap-Full-Comprehensive-Details!&p=28430585#post28430585

I read that if the E46 M3 pump was utilized that there would be interference with running a/c in the E30 chassis as well. Since you're running a/c as well I am just looking for some clarification because time is on my side and I just want to get it right the first time around haha (I know thats optimistic )

Love what you did with the sway bar setup btw. I'm thinking about doing the same to increase ground clearance...

Thats the first time I heard that. I plan on running an E46m3 fuel pump and A/C as well. what is the interference, I am not sure how those two are connected.

[dude8383]

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.

http://c1552172.r72.cf0.rackcdn.com/313557_x600.jpg

Z3M/4M waterpump, notice the shorter profile.

http://c1552172.r72.cf0.rackcdn.com/483383_x600.jpg

I'll consolidate this into my DIY

Starting up the build on my car and this is the first time I'm really jumping into the details of these swaps.

I plan to run A/C as well... most likely keeping the original s52 a/c compressor because it all works currently. My question to you is, what was the final configuration that you went with?

-Z4M water pump
-Z3M coolant line from pump to expansion tank and heater core?

In this post the o/p mentions that:

The cooling system was also gone over. The goal was to mount the overflow bottle in the stock location. This meant that the E46 M3 water pump would need to be modified or the MZ3 S54 water pump could be used. Since my pump was quite new, I decided to machine a brass fitting with o-ring and bracket to seal the port where the hardline goes across the front of the engine. If the MZ3 pump was used, this step would not have been needed. I also used the MZ3 coolant pipe that leads off the back of the thermostat and branches out for the overflow bottle. This is all plug and play. New o-rings were used obviously.

https://www.bimmerforums.com/forum/showthread.php?2169783-My-E30-S54-6-Speed-Swap-Full-Comprehensive-Details!&p=28430585#post28430585

I read that if the E46 M3 water pump was utilized that there would be interference with running a/c in the E30 chassis as well. Since you're running a/c as well I am just looking for some clarification because time is on my side and I just want to get it right the first time around haha (I know thats optimistic )

Love what you did with the sway bar setup btw. I'm thinking about doing the same to increase ground clearance...

[R3Z3N]

Sorry for no updates, getting married first the 18th of Aug, then I shall be back to work.

Update though, picked up the Z3 cruise control unit to wire in cruise. I'll leave the stalk out though most likely as it's in the way when on the track.

[roznic]

Yeeeeeesss can't wait, do it.....

[R3Z3N]

Got some wiring done. Added the missing Aux fuse box which will go under the beauty cover, and populated 1x always hot, 3x hot on ignition. Keep in mind these are on the ignition coils, so use Diode protected relays. Didn't take pics but added 3 relays. 1 for the CAN controller for AC. 1 for oil pressure, temp and wideband for the dash, and 1 not yet used.



The modified airbox and elbow to fit. Notice also the aluminum shield to seperate hot radiator air from the intake:













The Tilton bracket. Ill clean up later, may move as its in the way of my Mason Strut bar:

[R3Z3N]

^Used the Kassel Brace for now. Will have my shop fab something else up so that I don't get the torque on the rails as you stated.

Driveshaft was sent out for shortening and balancing. Not sure which guibo I am using yet, will get that info from the shop along with parts they used which I will document once it's back in my hands.

Shifter linkage for the 6Speed ZF was also made by my shop from parts from an AGK DSSR for the Z4M. Ill get that pulled and measured later for someone else to reproduce.

[mitchlikesbikes]

i'm putting the same ZF trans in mine but with an m50. have you done anything for a trans brace yet? i made my own extensions similar to what garagistic sells but i'm not sure how it's going to hold up when it's all said and done. i think if nothing else it will be better than the kassel mount because theirs uses skinny metal stock that doesn't seem like it would adequately spread the load over the rails on the tunnel.

i noticed you have a nice chassis mounted shifter, but what selector rod are you using?


also, i saw that you plan to shorten your driveshaft, but depending on which trans you had with the s52 that may not work as the ZF uses the big giubo unlike the getrag 260.

an E36 M3 auto driveshaft is plug and play, you just have to use the CSB that corresponds to your e30 chassis. i found one for $50

i'm guessing based on the level of this build you may already know all of that but i figured it might help if you haven't found that info anywhere yet.

stoked for more progress!

[R3Z3N]

Have a small update. My shop is busy, parts are slow to arrive due to the SB Fire/Mudslide, but otherwise life is good. Dirty from the ash that was in the air. It's coming along, but I should have it back in my hands once we finish with the upper rad hose/airbox issue as seen in the pics below. Thinking about moving the ABS unit to the passenger battery box area (where the battery is on verts)

[R3Z3N]

Thanks Jasper! It's still in progress, my shop is almost done with the work I requested, but I gave them no timetable to save a little $$. They haven't worked on it for 2 months...

Which is good for me as it gives me a chance to clear my garage :-D

Right now looking into a Teves MK60 DSC addition so that I can have tuneable ABS and traction control for road use, yet have some safety margin for track use too if I can purchase the motorsport version. Not sure if this will happen unless I can get some major help...

[jahnaboi]

Jealous in many ways. Looks great! Glad she's still alive (soon to be). Hope you get her back on the road soon.

[R3Z3N]

Compared to my previous options on sway bar mounting LINK

[R3Z3N]

Finished AC Lines/R134 Conversion, Sway Bar mounting and AKG DTM Shifter install. Used old rubber surround to limit noise and contamination and shimmed the shifter up. Condor 6Speed shifter handle/insert will be re-threaded for the AKG unit. They are finishing up a tilton brake/clutch res, power steering cooler and cold air intake.

This part is being done by my Porsche/BMW specialist Schneider Autohaus

[sam_]

Wow, this is definitely going to turn out nice. I'm excited to see where this goes!