Quote:
Originally Posted by Rawdog
I just dont get what magic is in a tune and REALLY dont get why my tuner thinks he can improve on everyones tune. why didnt it just come from the factory with this good of gas mileage?
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The manufacturers needs to please many people/organizations/governments.
The tuner's job is to please you.
Have you ever seen a radar graph?
Imagine you can only fill so much of this graph. In one direction you have fuel economy, in another you have power, in another you have emissions, and so on and so forth. The manufacturer is going to spread their butter real thin in every direction. Power won't be where it could be. Emissions won't be where it could be. I think you get it by now.
The aftermarket tuner has far fewer people to please and can specialize how the engine does its work and put all the jelly on your piece of toast.
Edit: I've never seen a tuner at work. I've never been present when a vehicle was being tuned. But I know that there's slightly more to it than checking the box for 'Aftermarket Exhaust' or 'Aftermarket Turbo @ 8 PSI". By 'slightly' I mean a fuck-ton.
If only the ECU was designed from the get go with that kind of customization available. It would be awesome for all of us but fortunately for guys like John, who would be put out of work, that is never going to happen.