Ignition flutter?
#26
Arrogant Wankeler
More likely ignition breakup or map/transient enrichment needs to be cleaned up if reading very rich or wideband flickering lean (rich misfire). Injector deadtime errors will have the biggest impact at idle/cruise where any errors represent a larger part of injector on time, at high load it should make very little difference.
#27
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Thread Starter
More likely ignition breakup or map/transient enrichment needs to be cleaned up if reading very rich or wideband flickering lean (rich misfire). Injector deadtime errors will have the biggest impact at idle/cruise where any errors represent a larger part of injector on time, at high load it should make very little difference.
#29
Arrogant Wankeler
He wants to run around 18psi and stop the overboost due to the undersized exhaust gate. If he plumbs one conventionally with boost source acting against the spring it should do that. Not just using it as a BOV for closed throttle.
#30
~17 MPG
iTrader: (2)
Some modern cars close the drive-by-wire throttle to prevent overboost. That seems safer than adding a second BOV or wastegate to the intake because it should keep turbo speeds and exhaust manifold pressure lower. Perhaps you could fabricate a simple pedal stop to prevent the throttle from opening far enough to overpower the wastegate?
#31
Arrogant Wankeler
Some modern cars close the drive-by-wire throttle to prevent overboost. That seems safer than adding a second BOV or wastegate to the intake because it should keep turbo speeds and exhaust manifold pressure lower. Perhaps you could fabricate a simple pedal stop to prevent the throttle from opening far enough to overpower the wastegate?
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SpeedracerRX7
3rd Generation Specific (1993-2002)
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10-22-02 11:38 AM