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Unread 25th June 2016, 01:35 AM
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Join Date: Sep 2014
Location: Sydney
Year: 1998
Model: Outback. JDM TT conversion
Transmission: 5MT DR
Posts: 530
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pezimm,

I agree with you - to an extent.

The variation in parts etc means the default tune is 'safe' for extremes of part tolerances.

The 'fuel economy' part of the tune will be biased towards whatever the official city & highway economy test regimes are, and that's within whatever environmental regulations an in effect (especially hard to meet stuff like cold start emissions). They do not reflect real life.

That - plus all the other constraints, like cabin noise, etc mean the tune isn't optimised for your car, or your driving style.

Everything is a comprimise -- better to have that compromise skewed towards what you like, rather than what the average punter or new car buyer wants.
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