SLK-Class (R170) 1998-2003: SLK 200, SLK 230K, SLK 320

SLK/R170: M111 (230K) TB Upgrade

Old Oct 29, 2019 | 03:09 AM
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LUIS RAY's Avatar
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W211 E55 AMG / R170 SLK 230K / Porsche 996 Turbo S
Question M111 (230K) TB Upgrade

Hello from Korea!

I'm new in here and get some ideas for my SLK R170 230K (447)

My Ride already have some mods.

1. Cold Air Intake
2. Crankpulley upgrade (168mm to 185mm)
3. primary cat deleted
4. high flow exhaust manifold (header)

and now I'm about to upgrade tb.

I also own MY04 E55 AMG and already did a TB work.
(stock to 84mm)

and It was bang for buck.
so that I want apply that formula to my SLK.

Here's question.

I read some articles in MBW, and there's a few owner's already did.
and it was 2 type.

1. Bore up stock TB (approx. 57mm to 60mm)
2. fit bosch 74mm TB.

the 1's way is look like easier but
I want to apply 2's way.

does anyone know how it works?
as I found, 74 mm TB is for MB V6's and V8's (A113 141 01 25)

I think 74mm TB housing is not fit to slk r170's intake.
it needs to be get a adopter? like m113k?

Please show me the way for me.

Thanks,
Ray.
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