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Old 07-18-2014, 12:14 PM
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The line between performance and reliability

I know that any time that you increase power on most engines you lose reliability to some extent. My truck just turned over 120,000 it is my daily driver. I want keep it another 200,000 miles. I know that people say that if you want it to last for ever keep it stock but who wants to drive a stock 7.3 for that long? I'm thinking that 450 hp is a good limit.
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Old 07-18-2014, 12:38 PM
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anywhere between 400-450hp.

if you upgrade all the parts with good quality parts the first time, you'll be set.
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Old 07-18-2014, 01:19 PM
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I'm by no means a professional 7.3 Guru, and I know a lot of people dislike this guy, but I believe he knows a bit.

Basically, he states that you can increase your power with out losing the engine's longevity. He draws the line at adding bigger performance parts such as bigger turbo, stronger injectors, etc. So, if you just put a tuner, intake, exhaust, maybe some other minor things, you should be fine. But like I said, I'm not an expert. There's some people here who are, though. They'll likely speak later.
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Old 07-18-2014, 01:36 PM
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I don't think a guy who recommends changing the oil in the hpop reservoir, runs nitrous and propane on his street truck, puts the egt probe in the downpipe, and says that the SCT tuner is better than a 6 pos chip knows much about 7.3 performance.
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Old 07-18-2014, 03:09 PM
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if you go with the best parts you usually get great reliability.

If you go with a good set of rebuilt, or new performance injectors from any of the big names they should last a very long time.

a built 4r100 from john wood or bts is a must for reliability out of an auto.

a turbo that is matched well for the injectors you choose.
then theres all the other supporting mods.

that guy might be good at working on 7.3's as far as general wrenching goes, but hes not definitely not a performance expert.
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Old 07-18-2014, 04:31 PM
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You can do a bit and maintain reliability to at least 450 hp. Any more than that and it will really depend on how you drive it.

Single shots can be more reliable than the stupid spilt shots that these trucks come with stock because you can run less timing to get the same power.
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