My 24v long term swap :) S54 I Love.

[EulB30]

I cant find these "BNB" tranny mounts.. link?

[Wanganstyle]

Authentic 1985 hand built H&B 327s engine engine in traffic with 6 speed. Cant fake gear 6....



This is the the my car taking one of 8 dyno pulls that day.

[LuckyHenriksen]

Wangan this thread is great. Thanks for posting so much info. I will one day build an S54 E30

[Thing30]

sent the oem ecu to germany and had it done,whats your email i will send some pics of the project so far:)

Am weighing out my options for hacking my ECU, may i ask who reprogrammed yours?

Ralph

[prada88m3]

no problem!

you called me over a year ago about my DTA s100 swap harness built for s54 - I remember. What are you doing for brains nowdays for your s54?

sent the oem ecu to germany and had it done,whats your email i will send some pics of the project so far:)

[brian52555]

OMG the sound of the engine in the 2nd vid

fap fap fap fap

[Wanganstyle]

history

[prada88m3]

6 speed shift linkage+transmission mount/brace+Driveshaft = BNB designs 6 speed e30 swap kit;

My car is the prototype for the production kits. Kit has been designed to fit both the new 2005+ Zhp ZF 6 speeds and the older Getrag e36/m46m 6 speeds. Designed for both SOHC and DOHC engines: M42/M20/M50/M52/M54/S50/S52/S54


S54 engine Motor mounts is same as any S52/m50 swap into E30. Use the e36 engine arms and your mounts of choice- AKG/others make aftermarket for race cars/play cars, there are a few OEM options for street car use.

Headers:

My car currently has a set of vintage Hardy and Beck Longtube headers with the vintage built M20 engine.

Headers also depends on your subframe/oil pan choice - if you run a custom modified subframe with modified s54 oil pan, you may have more clearance.

Also the issue of single pipe vs twin piping. Your exhaust shop will need to decide this one.

S54 uses 2x 60mm pipes from header all the way to muffler. No Usa e30/e36 has similar piping size.

S54 headers or s50b32 headers share exhaust geometry, a EURO 3.2 e36m can pnp the header of s54 to the midpipe of s50b32. (in a e36M euro evo chassis)

E30 chassis cannot fit a longtube header designed for E36, such as aftermarket "euro" longtubes made to copy s50b32 headers.

Custom modification to OEM mid pipes is required to fit an entire S52b32 USA engine and its midpipes/cats+ oem shorty tiny headers into a e30.

THANK YOU THANK YOU THANK YOU!!!!!!!!

Im doing this swap on my 88m3

[nando]

it shouldn't sound like poop if you build it right. I dunno. I think my current exhaust will work fine. :)

besides - S54 induction noise is way better than exhaust noise. S54 exhaust usually sounds crappy regardless. There is also more power to be made with 3" over any stock dual exhaust. some race cars even go to 3.5", but that's overkill for a street car.

Actually, BMW induction sound in general is better than exhaust - plus it has the benefit of only being loud when you're in it. If you want to drive quietly, you can..

[Wanganstyle]

for an S54, go with 3" single exhaust. lighter and better flowing than E46 M3 exhaust.

but then it sounds like a poopera :( not an angry ITB BMW shooting exhaust out 2 pipes.

its absolutely ridiculous feeling to do WOT at 140mph+ with euro s54 catless headers + OEM usa e46m catless 60mm twin pipes. just mid pipes 1+2, the noise is fantastic, straight engine noise. to sneak by track DB regulations have a J pipe set in the mufler placement made with supertrapps. otherwise a 4 pack of resonators with a X pipe merge should make it pretty gnarly sounding, boxxer engines sound fantastic with those kind of setups ( 2 resonators, no muffler)

Just run no muffler if flow is of concern!!! the OEM e46m muffler is a ridiculous item.





Here is a quiet street s54 with euro headers+ S54 OEM midpipe section 1+2 and single muffler (OEM e36M) sounds like this; just imagine sitting in your e30 with this background noise. I am, hopefully soon!!!

Single muffler from e36M fits and sounds closer to any true e30 single muffler with 2 pipes in/out than a E46m 4 tip muffler.



if you want to run midpipes only (mufflerless) the max volume of sound from exhaust can be achieved. Tachometer was not calibrated in the DTA in this video, it was the first start up vid I took. Please excuse the "400 rpm" idle and incorrect tacho.

[nando]

for an S54, go with 3" single exhaust. lighter and better flowing than E46 M3 exhaust.

[Wanganstyle]

couple of questions::
what did you do for the shift linkage
the tranny mount/brace
headers
driveshaft
motormounts

6 speed shift linkage+transmission mount/brace+Driveshaft = BNB designs 6 speed e30 swap kit;

My car is the prototype for the production kits. Kit has been designed to fit both the new 2005+ Zhp ZF 6 speeds and the older Getrag e36/m46m 6 speeds. Designed for both SOHC and DOHC engines: M42/M20/M50/M52/M54/S50/S52/S54


S54 engine Motor mounts is same as any S52/m50 swap into E30. Use the e36 engine arms and your mounts of choice- AKG/others make aftermarket for race cars/play cars, there are a few OEM options for street car use.

Headers:

My car currently has a set of vintage Hardy and Beck Longtube headers with the vintage built M20 engine.

Headers also depends on your subframe/oil pan choice - if you run a custom modified subframe with modified s54 oil pan, you may have more clearance.

Also the issue of single pipe vs twin piping. Your exhaust shop will need to decide this one.

S54 uses 2x 60mm pipes from header all the way to muffler. No Usa e30/e36 has similar piping size.

S54 headers or s50b32 headers share exhaust geometry, a EURO 3.2 e36m can pnp the header of s54 to the midpipe of s50b32. (in a e36M euro evo chassis)

E30 chassis cannot fit a longtube header designed for E36, such as aftermarket "euro" longtubes made to copy s50b32 headers.

Custom modification to OEM mid pipes is required to fit an entire S52b32 USA engine and its midpipes/cats+ oem shorty tiny headers into a e30.

[prada88m3]

couple of questions::
what did you do for the shift linkage
the tranny mount/brace
headers
driveshaft
motormounts

[Wanganstyle]

I seen good S.E30 cars dyno around 150-160. Usually the junkyard engines get 135-145

And here is the reason why my m20 is dyno-ing low.

My initial mapping for 21.5 lb injectors is too rich (~11.7 till 5250, the spec e30 on dyno is quite a bit AFR leaner). I bet the extra quart or so of oil for track G loading I added did not help either lol


Time to re-map some more and trim some fuel!

mine (rich) compared to a strong dyno-ing spec e30 on same dyno.

[moatilliatta]

The spec cars were dyno-ing similar on hp as my m20 initial chip map dyno run yesterday - they may have peaked higher- i'll try to find a chart of a 2.5 on the same dyno

I seen good S.E30 cars dyno around 150-160. Usually the junkyard engines get 135-145