Is the ECU really measuring boost pre throttle body?

B_davis · 04-15-2011, 10:41 AM

IF this is the case, makes the peak/hold function of the cobb ap worthless for measuring boost.

Certainly it measures at the manifold?

Jeff@TopGearSolutions · 04-15-2011, 10:50 AM

It measures pre-throttle body.

Sustaind boost in gear is not very peaky in this car. Where some cars might sustain 20 PSI and taper down to 14. This car generally stays within 2 psi from peak to its lowest at high RPM.

04-15-2011, 10:41 AM	#1
B_davis Private First Class 127 Rep 190 Posts Drives: M4 Join Date: Jan 2011 Location: N/A iTrader: (0)	Is the ECU really measuring boost pre throttle body? IF this is the case, makes the peak/hold function of the cobb ap worthless for measuring boost. Certainly it measures at the manifold?
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04-15-2011, 10:50 AM	#2
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	It measures pre-throttle body. Sustaind boost in gear is not very peaky in this car. Where some cars might sustain 20 PSI and taper down to 14. This car generally stays within 2 psi from peak to its lowest at high RPM.
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