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om603.912 hx40
jarow123 Offline
K26-2
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Posts: 25
Joined: Apr 2013
Location: Slovakia
#1
om603.912 hx40
Hello

Im from Slovakia so i apologise if the spelling or some words might be wrong. I have build a om603.912 superturbo. 8mm dieselmeken pump with outside alda, holset hx40. what is the safe boost a om603NA ? actually i run 1,65 bar without any problems. The engine could handle a pressure of 2 bars ? ?.

Thanks
07-21-2019, 04:45 PM
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NZScott Offline
HX30W 73/44mm
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Posts: 376
Joined: Jul 2014
Location: New Zealand
#2
RE: om603.912 hx40
I'm sure you'd tell us if it wasn't Smile

With an HX40 your bottom end is probably ok as it won't ever get high boost at low RPM

1978 300D, 373,000km
OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (awaiting certification to be legal...)

1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km 'new' DD





07-22-2019, 04:47 AM
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