HE200W 5cm turbo for the OM617 with stock IP

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11-17-2023, 03:09 PM #1

Hi to all,

I'm new to the forum: First time posting but long time reader.

I'm been working on diesels and Mercedes OM617 engines for almost 20 years now.

I wanna upgrade the turbo in my OM617.

I have a quick question regarding what turbo will be best for the OM617 with stock IP (5.5mm)

with the ALDA deleted and automatic transmission.

Reading online I see 2 choices for the stock IP (Please feel free to suggest any other non-VNT

turbos suitable for a stock OM617):

Holset HE200W 5cm

and

Holset HE221W 5.5cm

Does any body have any experience with any of these 2 turbos with those particular turbines sizes

(5cm & 5.5cm) in the OM617?

I'm thinking of going with the HE200W 5cm.

I live at almost 4000 feet elevation.

I mostly drive in the 2000 to 3000rpm range and planning to run at about 15 psi of boost.

I hardly ever go over the 4000 rpm range but I read from a turbo test excel sheet that the HE200W

5cm will be fine over 4000 rpm if run at about 15psi to mantain a Boost/DP ratio of 1:1.1 with

stable EGT's.

What do you guys think of the HE200W 5cm in the OM617 with stock IP and automatic transmission?

Is the Holset HE200W 5cm turbo a good choice in my case?

Thanks

Kevy

Naturally-aspirated

11

01-21-2024, 11:37 PM #2

Don't delete the ALDA, there is no good reason to.
HE200W for the stock pump.

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