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Re: Chips Ahoy!(reference for article on perf. chi (archive)

[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]

Posted by Rob Anderson on January 09, 2001 at 15:34:58:

In Reply to: Chips Ahoy!(reference for article on perf. chips) posted by Tim in N. FL on January 09, 2001 at 15:27:21:

The problems with these tests is that they take a stock car and put in on the dino. Then they drop in the chip and put it back on the dino. But they don't run in the chip first. The chip has to adapt to your individual motor. In an E28 with Motronic 1.0, this takes up to 1k miles. For Motronic 1.1 and newer engine managements, the chip starts to optumise itself sooner, but no matter what you will not see much improvement if any at all. All these people with OBDII cars have it even worse. If you take your car to the track and then dino it, then you drop in a new chip and drive the car on the street you will have less power. This is because the car adapts the fuel maps to your driving style. Motronic does not do this but you have to run in the chip to be able to tell the true gains.

Hope this clears it up
M535i SIG Chief Technical Advisor

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