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Toymods Social Secretary
Location: Sydney
Registered: July 2002
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Re: effect of running forced induction with standard ecu on VVT motor
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Sun, 16 January 2005 21:15
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jaze,
to answer your question CONCISELY, no you can't.
My reasons why you can't lie in the fact that you wish to retain the factory engine management. With an N/A engine management system, the tuning and fuel maps only go marginally above air pressure at sea level, as it is near impossible to obtain a higher manifold absolute pressue.
Furthermore, if the engine uses a MAP sensor to measure engine load, then it will most likely be ~1.1bar absolute - meaning that the ECU will fuel cut at anything above atmospheric pressure, as the MAP sensor will give its max output of 5.05V (fuel cut is approx 4.95-5.05V).
With an aftermarket ecu, or even with an interceptor like an Emanage (with add-on MAP sensor) will allow you to modify the fuel maps enough to tune up to that manifold pressure... but a stand alone is a much better idea.
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