When I was setting my boost pressure, I adjusted it in 2.0psi increments until the engine performance (by feel) peaked. Anything over 14.8psi made no difference in 'feel' and no improvement that could be recorded with a stop watch, so I dropped the boost back to 14.0psi and left it there.

Additionally, my ALDA screw is backed all the way out CCW..Robert

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Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership