Jake brake w/ performance tune - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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Old 05-10-2012, 11:23 AM
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Jake brake w/ performance tune

I was wondering if it is safe to run the jake brake in a performance strategy tune on my truck? It's an 04 6.0


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Old 05-10-2012, 11:26 AM
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If you are referring to the exhaust braking using the turbo (not an actual exhaust brake mounted in the exhaust), I've been doing that for over 25k miles now. All my tunes have the feature, just to varying degrees depending on the application.
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Old 05-10-2012, 11:28 AM
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Oh ok what exactly does it do does it help slow the truck at all I am re flashing it with the jake brake now will this hurt the turbo?


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Old 05-10-2012, 11:29 AM
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It is just the jake brake option in the sf3 it self


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Old 05-10-2012, 11:36 AM
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It won't damage the turbo, as the stock programming using the same feature (via engine breaking). It will slow the truck down when descending grades, particularly with tow/haul engaged. Takes a lot of load off the brakes.
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Old 05-10-2012, 11:56 AM
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It closes the vanes in the VGT to increase backpressure when you back out of the throttle.
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Old 05-10-2012, 12:12 PM
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Also it seems to shift really hard maybe it's normal but it's not as smooth shifting as before should I lower the shift pressure


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