Post Your M/S5X 24V Swap Setup

[Roysneon]

1. Engine
M50tuB25, installed it completely stock. Only changed the valve cover gasket as I need to have it in an running asap after I broke the timing belt on my old motor

2. Engine Wiring
Cut off the e36 x20 and soldered in the one from my m40, matched them up using charts I found online, ETMs and a bit of guesswork.


3. Drivetrain
Stock G250 off the e36 with factory driveshaft.

4. Shift Lever and Linkage
Z3 lever from Blunt, Delrin front and rear carrier bushings from Garagistic. There is still play in my shifter from the old selector rod joint and rusty selector rod not being super tight fitting to the shift lever bushing. I'll be getting a DSSR when I swap this noisiy 250 for a ZF310

5. Motor Mounts
Originally I had Condor engine and trans mounts, but due to the grinding noises the trans made and the harshness when at idle I swapped back to stock trans mounts but kept the engine ones. One day I'll man up and get some soft poly transmission mounts as I'm sure that being the only flex point is doing nothing good for stock, used transmission mounts.

6. Brake Booster, Master Cylinder, and External Reservoir
I did mine a little different than most. I had an iX booster at first but it developed a leak after a few months. I then went to the e32 735 booster. Mechanically they are identical except for the vacuum port location. On the Ix it is on the opposite side of the master cylinder and on the e32 it is closer to the engine. I didn't want to run a remote resevoir for cosmetic reasons, so I ran both boosters without the spacer off the fire wall. Ths meant I had to shorten and tap the rod and slot my firewall mounting holes to fit the studs on the booster meant for the spacer. I also had to attach it to the firewall with only 2 studs. It hasn't fallen off yet so I'm gonna say it's not too dangerous a thing to do.

7. Steering System
I used the E30 resevoir at first but then swapped to the e36 res that hides down under the intake for a cleaner look. I used some combination of E30 and E36 hoses and hardlines.

8. Cooling System
I used a stock m20 rad with a 16" fan from IE wired to run off the ignition with an m42 upper rad hose and a cut e36 lower. I've recently wired up the fan to work by itself properly using a rad thermo switch from an e36 318i and swapped out the thermostat, plastic housing, factory original water pump and a Mishimoto m20 rad. Went with an aluminum T-stat housing as I've already had one plastic one crack on me and a lower temp M20 thermostat. Fan comes on at half mark, turns off at 3/8ths and temps never creep above half.


9. Exhaust System
I had to hack up a set of stock M52 manifolds to get something to clear my steering shaft and rack input shaft housing since my car is RHD. Because I wasn't running either aftermarket long tube headers or stock manifolds I had to hack together some sort of downpipe and tried tho attach that to stock m20 exhaust. I ran that mess with nothing after the cat for a couple months, which sucked. I then had a full custom system made up from a single 2.5" pipe, magnaflow cat and a dynomax muffler. Works great except for the exhaust hanger that the guy made breaking off and causing it to scrape on the ground and me ignoring it until there were holse worn through it...I am not skilled enough with a welder to fix it up properly myself so I will likely have one of the techs at the dealership I work at have a look at it.

[agent]

Engine: 1997 M52B28, S52 cams, M50 manifold with m50manifold.com kit, OBD1 throttle body and boot, OBD1 fuel rail. Beisan Vanos seal kit and rattle kit. All new gaskets and seals.

Engine Wiring: Markert Motorworks OBD2 wiring harness, Markert/TRM-flashed MS41.1 Siemens ECU running OBD2 with EWS delete, post-cat O2 delete and SAP delete. 7200 rpm redline.

Drivetrain: E36 ZF 320 transmission, UUC DSSR, Z3 shift lever, ZHP knob. E36 driveshaft. F1 Racing Stage 1 clutch and PP with chromoly (14 lb.) flywheel. E36 M3 slave cylinder. Torsen 3.15 differential.

Motor Mounts: E28 535i (green) mounts, E36 arms.

Booster, Master Cylinder: E32 booster modified by Markert. Notched firewall. E30 Master. Complete working ABS.

Steering System: E36 rack with AKG kit, (new) E36 tie rod ends and (new) sway bar end links. RobertK custom modified coupling and custom modified PS hoses.

Cooling system: CXracing aluminum E30 radiator, stock late model overflow tank, Geba cast impeller water pump, off-the-shelf Gates hoses cut to fit, Spal puller fan with RobertK custom manual override (using a fog light switch). Full working AC using Markert-modified lines (stock E30 routing with E36 fittings).

Exhaust System: Complete stainless custom-fabbed system: Supersprint replica stainless long tube headers to V bands, attaching custom dual 2" stainless mid piping with a Magnaflow dual in dual out cat, to another set of V bands attaching an Active Autowerke E36 cat-back. Holes cut and O2 bungs welded in the header downpipes.



Videos and more details can be found in Lola's build thread.

[amcink]

I'm working on my swap ( M50nv + S50 cams + M52 vanos 413 DME) and i have two questions for those that Bared your swap?
A) is it ok to install S52 headers
B) i plan to get an off the shel TRM chip, should i install this prior the Bar or after?

[MR E30 325is]

Motor: 1998 OBDI S52
Harness: 1995 S50 from a 5 speed manual
Injectors: 21 lb pink tops
DME: 413 Red Label
Flywheel: UUC 8.5 lb
Clutch: UUC E34 M5 clutch kit for the E36 M3
Driveshaft: E36 325i 5 speed front, E30 rear
Transmission: ZF 320 5 speed with Revshift 24v guibo, stock E30 brace with AKG poly tranny mounts.
Motor Mounts: AKG poly solid mounts
diff:2.93 LSD
Linkage: AKG DSSR with AKG Stage 2 short shifter
Booster: e21
Master: e21
Radiator: Mishimoto E36 all aluminum radiator
Fan: Spal 16in pusher (no ac condenser)
Exhaust: SS rep headers, custom single 2.5" exhaust with solenoid actuated dump valve (located after oxygen sensor, but before resonator), Vibrant ultra quiet resonator, magnaflow muffler (catless)

Any questions let me know.

[Danny]

It's easy to get a car BAR referee'd. I live in Vacaville, CA and my car is 100% legal.

http://www.bar.ca.gov/80_barresources/07_autorepair/engine_change_guidelines.html

[hkloverinus]

Hi a major concern about the swap, do you pass smog with this swap? I am living in SF. It is very important for me to not going to have problem with smog check

[36brua]

Something like this ?

http://www.r3vlimited.com/board/showpost.php?p=2492971&postcount=55

[Link]

Are there any write ups on how you actually build your harness? I understand the figuring out which pins match up, but how do I physically go about doing this?

[Danny]

1. Engine
S50B30 "Dinan" engine. Ported and polished with Dinan chip according to the PO. Now has 13lb Fidanza LTW fly with OBDII injectors and Turner software.

2. Engine Wiring
Wiring done by Adrian at Milt's Service Garage in Vallejo. E36 wiring harness. X20 removed and replaced with C101 connector for a factory style splice.

3. Drivetrain
Getrag 260 with White325is brace and some kind of BMW short shifter. Bent the linkage myself with oxy/acetylene torch. 3.73 LSD and stock drive shaft.

4. Shift Lever and Linkage
Stock. See above.


5. Motor Mounts
Revshift "blue" swap motor mounts.

6. Brake Booster, Master Cylinder, and External Reservoir
E21 brake booster with stock E30 master and res. Had the rod cut and welded at a local welding shop.

7. Steering System
E30 pressure line with E36 low pressure hoses cut to length. Mounts to stock E36 location on motor mount arm.

8. Cooling System
OEM Behr Z3M 3 row radiator. Bimmerworld silicone hoses. 80 degree thermostat. 16" spal pusher fan connected to 82 degree temp switch. Working A/C using custom A/C lines and R134a conversion.

9. Exhaust System
Fully custom dual pipes from headers to a 2 in 2 out Magnaflow cat to a Y pipe into 2.5" piping with a 12" resonator and a large unknown model of magnaflow muffler.

[ryanc88]

Motor: s50
Harness: s50
Injectors: stock
DME: 413 Red Label
Flywheel: stock s50
Clutch: stock s50
Driveshaft: E36 328i 5spd
Transmission: ZF 320 5 speed, stock e30 manual brace, e21 mounts with agk cups.
Motor Mounts: agk solids.
diff:2.93 LSD
Linkage: z3
Booster: e21
Master: e21
Radiator: '90 325i
Fan: mishimoto 16in puller
Exhaust: s52 manifolds, into x-pipe to magnaflow high flow then to stock e36 m3 muffler.

[spiDmang]

1. Engine: 95' S50b30US. S52 valves and retainers. replaced most wear items.

2. Engine wiring: E34 525i wiring harness w/ repinned C101 plug for a factory look.

3. Drivetrain: ZF320 5 speed trans / e36 328i front driveshaft / stock trans brace / 320i trans mounts / S2.93 (great MPG and overall daily driver use, but want something shorter)

4. Motor Mounts: e28 535i engine mounts.

5. Brake Booster: e21 brake booster, res and master cylinder

6.Cooling system: M20 late model radiator, e36 rad hoses, late model expansion tank, 16in electric pusher fan

7. Exhaust: SuperSprint replica longtube headers > Y-pipe > 2.5in mandrel bent straight piping > thrush 28in resonator > magnaflow muffler

header fitment issues i ran into were the headers were ever so slightly touching the cross member. The biggest issue for me is one of the headers is touching the firewall which causes some vibration in the cabin. Not bad, but kinda annoying at times. overall the exhaust sounds quiet at idle but rips at WOT.:up:

[bernzpeed]

thanks for the info., how will that affect idle though?

[Robert]

m20 flywheel has to be shaved 1/8" to fit.

[bernzpeed]

how much do you shave on the M20 flywheel to work with S52 and G260 combo?

[Robert]

What hoses do you guys use for the 318is radiator?