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spuggy spuggy is online now
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Join Date: Jul 2003
Location: Glorious Pac NW
Posts: 3,407
Originally Posted by mark houghton View Post
Seems to me your cold control pressure is too high;
I agree; dug out my dead tree factory manual; the tech spec booklet I bought only covers the years I need.

930/66 seems to be 83-91, 930/68 is the US version - what motor type do you have?

Because each motor type has it's own page, presumably because it's different enough to need it.

The CCP graphs/pressures are different between the two types for 1989 - and both seem quite different (generally lower) than the earlier types like 930/60.

The US 930/68 motor type also has a funky "two bands" on the chart, annotated "with charging pressure" and "without charging pressure". No idea what that's about.

The 930/68 "without charging pressure" band gives a range for CCP of 2.1 - 2.5 bar at ~23 degrees C.

The 930/68 "with charging pressure" band gives a range for CCP of 1.7 - 2.1 bar at 23 degrees.

The 930/66 band gives a range for CCP of 1.4 - 1.9 bar @ 23 degrees.
'77 S with '78 930 power and a few other things.

Last edited by spuggy; 07-07-2011 at 03:57 PM.. Reason: Oops. Had reversed the "without" and "with" charging pressure bands
Old 07-07-2011, 03:55 PM
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