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Tuning on Cat C12

I have a C-12 Cat, set at 410 hp, and 1550 tq. I would like to get a little more out of it. From Cat they were available at 430/1650, and they want $800 to turn it up. Pdi ecm tune is around $2200. I have a Pdi shop near here. Even though it is triple the cost I think the ecm tune will give me better fuel economy, along with the power. I have'nt found anyone who has done this on a C-12 though, and I don't want to damage it. Any advice?

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I can tell you from experience sometimes you are opening up a can of worms when you go to playing with the power. They will tell you how much better your fuel economy and drive-ability will be but they don't tell you about all the damage that can result from doing this if your not really careful. My fuel mileage didn't improve at all matter of fact it dropped about a 1/2 mile per gallon. I have know several that have had the same results I got and heard many more stories like mine. I did it on a fresh rebuild and had the pleasure of rebuilding it 2 yrs later to undo what I thought was going to help my fuel mileage. Others may tell you different but it wasn't my experience so choose wisely it's not a good as they tell you it will be.

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thanks Blackwood, this is why im a little leery

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I would suggest having CAT turn it up. It's cheaper, more reliable (within the ratings of the engine) and will give you a better result than the "PDI Tune." And like Blackwood777 said, you "open a can of worms when you start playing with the power."

CAT has employees called engineers who can and do test the limits of the engine, and determine the ratings that the engine can safely operate in. I'm not aware of PDI having such engineers. I would be very skeptical of PDI.

Pittsburgh Power, unlike PDI, has very extensive knowledge of CAT's engineering process, and while they have successfully turned up CAT engines for quite some time, they recommend their own product, the PowerBox, for most applications since they know what damage can be done when the power is turned up significantly.

In my opinion, I would go with Caterpillar's own tune, save the $1400 and still be able to safely run your engine longer. If CAT screws up, it's on CAT. If PDI screws up, it's on YOU.

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Thanks Zachary for your answer

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oops, sorry I put that in the wrong place.

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It's OK. I still got it in my e-mail. Thank you!

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I had a KW t2000 at 430 hp pretty strong for the rating make sure you do your over heads had mine break valve springs and also if it starts using oil get it in as soon as possible i started using about 1 gal. every 7 to 8000 miles at 67 or less mph hr and in less then 6 mths. I threw a rod. that was a 2001 C12 with gen 2 Eaton auto shift

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Thanks Edward, Ithink I have decided against the PDI route.

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michael will be eternally grateful.
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