Andrew's S54 Swap

[pandaboo911]

Andrew's S54 Swap

Use a turbo core muffler such as Thrush Turbo / Magnaflow XL. It's not a straight through design so it's not super loud but still flows well.

This is what the inside of a turbo core muffler looks like

[TSAF]

I would like to use the stock oem muffler again but how can I make sure it wont choke the engine. Are you sure that yours works perfect without causing breathing problems to the engine?

[Andrew325is]

Originally on mine I fitted the muffler from a S50 B32. I wanted to be as close to BMW (sound & looks) as possible but on the dyno we found out that the muffler was "chocking" the engine so I had a custom one made. Now the engine breaths right but the sound is really loud and I do not like it.

That's very interesting. I guess they need to design you a quiet muffler. :) You could install a second muffler mid-way in the exhaust.

[TSAF]

Originally on mine I fitted the muffler from a S50 B32. I wanted to be as close to BMW (sound & looks) as possible but on the dyno we found out that the muffler was "chocking" the engine so I had a custom one made. Now the engine breaths right but the sound is really loud and I do not like it.

[Andrew325is]

Hi what have you done with the muffler? Is the car now very loud or have you done or used a muffler that sounds exactly like the OEM one.

Thanks in advance
Dimitris

Hey Dimitris,

I used a stock Euro E36 M3 muffler that is then plumbed directly to the catalytic converters. It sounded very nice. It was not loud at all. No "drone" at highway speed as some E46 M3 owners complain about.

[TSAF]

Hi what have you done with the muffler? Is the car now very loud or have you done or used a muffler that sounds exactly like the OEM one.

Thanks in advance
Dimitris

[0-60Motorsports]

Amazing build. I would love to do one....one day and use it as a DD.

But I would need to keep the AC

[WannaBe30]

Thanks andrew


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[Andrew325is]

sorry if this has been asked or if you specified. but i was wondering on the areoquip hoses did you get the 6 foot length? x2?

i didn't see shorter and seems like 6 is a lot

I bought it by the foot. Just measure how much you need.

[WannaBe30]

sorry if this has been asked or if you specified. but i was wondering on the areoquip hoses did you get the 6 foot length? x2?

i didn't see shorter and seems like 6 is a lot

[e30m20TurbO7]

Driven this car!

[gills]

OT: I contacted Fidanza flywheels for help identifying the FW I have and it turns out it's a very rare one. They used to make it for Dinan/BMW and is very similar to the one they make for UUC's stage II setup. Funny thing is I called Dinan and asked if they ever made an aluminum FW for the E36 and the guy said no. Time to sell a Dinan FW! lol

[gills]

Not wondering about bad effects of the LTW setup, as that is pretty common across the board.

I was wondering about what actually fits:

One can fit a M20 oem (or aftermarket) clutch and flywheel to a s54 and zf 5 speed.

All the bmw small 6 clutches can be interchanged (m20, m50, m54, s50, s54)

Tons of reasonably lightweight dual mass setups;

M54b30 zhp / z4 3.0 20#/ s52 22#/ s54 30# dual mass and associated clutchset is not much heavier than a stock m20 single mass setup.

which is very helpful. Thank you, waganstyle!

[Wanganstyle]

I think he's wondering if there are any bad effects to such a light flywheel on the S54.

personally I wouldn't want to run an 8.25lb flywheel on the street no matter what engine it was.

S54 enjoys eating harmonic dampers........

S54 seems to eat the most dampers when on track racing with light race clutches and single mass fly (racing twin disc etc)

..........

S54 only comes from bmw with a dual mass flywheel; this is calculated by the engineers in the harmonic balancer / damper design.

So the question is full raze then nothing will stop him from installing something full raze.

If one desires an oem type installation with longevity then a dual mass fly would be chosen.

Tons of reasonably lightweight dual mass setups;

M54b30 zhp / z4 3.0 20#/ s52 22#/ s54 30# dual mass and associated clutchset is not much heavier than a stock m20 single mass setup.

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[nando]

I think he's wondering if there are any bad effects to such a light flywheel on the S54.

personally I wouldn't want to run an 8.25lb flywheel on the street no matter what engine it was.