Re: Can an ecu be reprogramed to reduce turbo lag? - Saab Performance Bulletin Board - Saabnet.com
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Re: Can an ecu be reprogramed to reduce turbo lag?
Posted by sean [Email] (more from sean) on Wed, 29 May 2002 22:19:49
In Reply to: Re: Can an ecu be reprogramed to reduce turbo lag?, kooch, Wed, 29 May 2002 21:49:25
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On anti lag systems the other components to the retarded timing are air bypassing the throttle plate and fuel. So you get combustion with the exhaust valve open which keeps the turbo spinning but also sounds terrible and it's very critical to have exact control over the combustion as a lot of heat is generated in the manifold and turbo,it's also very hard on cats.
To minimize lag you have to do all the logical stuff like reduce back pressure and have good flow, but if you want a turbo big enough to make big power it's going to have a lot of mass to get spun up.
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