why are they not "tuned" from the dealer?
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Tuned
Joined: Mar 2004
Posts: 380
Likes: 12
From: somewhere in Colorado
why are they not "tuned" from the dealer?
Everyone knows about tuners and engine programmers. They go back to the 80's when EFI and computer controlled tranny's became a reality. Company's found ways to improve power and performance through chips and programmers. Now, more than ever, there are a ton of tuner options. So the question is why don't the manufactures put a vehicle out with the best programming available? For example, we can get a programmer for our new 08's that improves torque by over 100 ft/lbs and many times even more. So if there is more power to be harnessed in any given engine, why don't they come "tuned" from the factory? I am thinking it's because it decreases the engine or tranny's reliability? But if that's the case why would so many people get tuners/programmers if their truck is less reliable? Lastly, has anyone who has tuned their 6.4's got anything in writing from the dealer that says they will or will not cover their truck under warranty with the tuner/programmer installed? Thanks guys.
Posting Guru
Joined: Oct 2004
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its reliability bottom line. they cant say it will last 100k miles if they squeeze every bit of power from them. plus when you buy the truck you want some fuel milage, turning up the power usually lessens the fuel milage. would you buy a truck with say 100 less ft/lbs of torque if you got 5 miles better in gas. of course you would with gas prices they way they are.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
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From: SE Florida
The other reason they don't squeeze every last bit of torque and horsepower out of the engines is emission levels. The manufacturers are legally required to meet the government's emission standards. It is hard enough to do at these power levels, it would be nearly impossible at higher levels. If the engine makes any visible smoke it isn't going to pass the emisssions test. The tuner companies don't worry about this.
Former Vendor
Joined: Mar 2004
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From: Hendersonville, NC
Originally Posted by littleme13
its reliability bottom line. they cant say it will last 100k miles if they squeeze every bit of power from them. plus when you buy the truck you want some fuel milage, turning up the power usually lessens the fuel milage. would you buy a truck with say 100 less ft/lbs of torque if you got 5 miles better in gas. of course you would with gas prices they way they are.
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Tuned
Joined: Mar 2004
Posts: 380
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From: somewhere in Colorado
Originally Posted by SpartanDieselTech
It is emissions, bottom line.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
Originally Posted by boulderbronco
OK. So it does not hinder the reliability of an engine?
Everything was engineered for a certain power level. If you increase that level you decrease reliability.
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Tuned
Joined: Mar 2004
Posts: 380
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From: somewhere in Colorado
Originally Posted by Mark Kovalsky
Of course it lowers the reliability of the engine and everything downstream of the engine.
Everything was engineered for a certain power level. If you increase that level you decrease reliability.
Everything was engineered for a certain power level. If you increase that level you decrease reliability.
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