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post #1 of 5 Old 04-20-2019, 05:12 AM Thread Starter
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Another numbers question

Silly I know but, what is considered Max boost from a stock turbo? Iím not having issues(that I know of, but could change after reading replies). Iíve seen 26-28 psi, which comes on very quickly when needed, and holds until I back off or as the truck comes up to speed.

Another FICM question. Mine is always between 47.5-48.5, mostly 48-48.5 while driving. It drop to 47.5 from time to time, but not for long. Should the voltage go up and down or should it remain constant?
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post #2 of 5 Old 04-20-2019, 06:45 AM
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Originally Posted by tmj690 View Post
Silly I know but, what is considered Max boost from a stock turbo? Iím not having issues(that I know of, but could change after reading replies). Iíve seen 26-28 psi, which comes on very quickly when needed, and holds until I back off or as the truck comes up to speed.

Another FICM question. Mine is always between 47.5-48.5, mostly 48-48.5 while driving. It drop to 47.5 from time to time, but not for long. Should the voltage go up and down or should it remain constant?
It's been a while since I had a stock turbo but I'm sure I never saw 30 in any WOT run. The FICM voltage will not be constant. If you start seeing lower numbers, start looking at FICM options quickly before you loose an injector.


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post #3 of 5 Old 04-20-2019, 09:14 AM
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26-28 is muy bueno.

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post #4 of 5 Old 04-21-2019, 06:44 PM
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Mine gets 24 tops. All stock. I got it apart today and it looks like I had some exhaust leak I was not aware of...


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post #5 of 5 Old 04-26-2019, 07:14 AM
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Max Boost

Max boost I have ever saw was about 27.5. This is all stock unloaded flat ground.

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