Idiots guide to MBC - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Idiots guide to MBC
Posted by Jacey (more from Jacey) on Fri, 18 Oct 2002 10:04:14
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OK guys, I've read through past posts and think I get the gist of this! I would be grateful if someone could respond to this with a simple yes or no answer (I appreciate that detail is lacking!!!):
MBC can be used in one of two ways:
1. Set as the max boost limit, overriding boost control functions of ECU, to give high boost but zero knock protection (other than timing retardation)
2. Set below max boost, which continues to be governed by ECU, and use to keep wastegate firmly shut during spool up at which point MBC valve opens and allows ECU to control boost in normal way. This gives quicker spool up, no increase in max boost but maintains full ECU 'safety' functions.
Apologies for being slow on the uptake! :-'
posted by 213.120.81...
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