re: Performance Chip for car/truck

I have had 2, each on different year mustangs and did not notice anything special. Probably not worth the trouble. Mine cost around $300.

Only reason I deleted and tuned my diesel was the emissions system kept failing and I was out of warranty. I was tired of dumping money into a faulty system

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out of warranty

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Key point.

First thing they look for on a warranty claim is any way they can to get out of fixing it. Deletes and tunes are easy reasons for them to deny warranty work. They will even go back in the ECU to see if you had a tune, but took it off before you brought in for service.

I got my Geo Metro chipped. Unleashed the beast within. Things gotta be pushing 65hp now.

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I was just throwing out a number that I've seen but I'll re-ask the question; does anyone think that for $300 a mfr would hesitate to put a chip in that increases HP and MPG? No they wouldn't and they don't bc they don't exist

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They exist, but the gains that can be gotten from a simple engine computer remapping vary. Manufacturers don't put them in for any number of reasons, but probably the biggest is that they want to design the drivetrain to make it through the warranty without becoming shards. The computer and its programming is part of this drivetrain. The hardware is usually perfectly capable of putting out more HP and torque at lower fuel consumption with a different computer tune. However, the chances that something between the intake and the rear wheels grenades itself before the warranty is out almost certainly will go up. The manufacturer balances the life of the system against performance when designing it and pick an engine tune that gives a decent balance of both for the installed hardware. Consumer car engineering isn't F1 race engineering and there's ALWAYS a margin built in to a factory car that can be exploited in the aftermarket because, to a manufacturer, life span and reliability at the cost of performance is important as opposed to a racing team that wants to shave every ounce of weight and get the bleeding edge of performance out of the machine to win at the risk of watching the machine destroy itself.

I got a tune from black bear a few years ago in my silverado. He travels the country and does vehicle specific tunes. These are better than the canned vanilla tunes.

So this wouldn’t do much for a 5.7L Tundra?

I’d like to make upgrades but would rather not void warranty. Toyota used to offer a supercharger that did not void warranty but not anymore.

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They exist, but the gains that can be gotten from a simple engine computer remapping vary. Manufacturers don't put them in for any number of reasons, but probably the biggest is that they want to design the drivetrain to make it through the warranty without becoming shards. The computer and its programming is part of this drivetrain. The hardware is usually perfectly capable of putting out more HP and torque at lower fuel consumption with a different computer tune. However, the chances that something between the intake and the rear wheels grenades itself before the warranty is out almost certainly will go up. The manufacturer balances the life of the system against performance when designing it and pick an engine tune that gives a decent balance of both for the installed hardware. Consumer car engineering isn't F1 race engineering and there's ALWAYS a margin built in to a factory car that can be exploited in the aftermarket because, to a manufacturer, life span and reliability at the cost of performance is important as opposed to a racing team that wants to shave every ounce of weight and get the bleeding edge of performance out of the machine to win at the risk of watching the machine destroy itself.

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Or the manufacturer could be just holding back a few HP for a special or end of run model.