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Powerband

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Old 11-05-2008 | 08:38 AM
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Question Powerband

Does anybody know the powerband on these 3.8L V6's?
Old 11-05-2008 | 10:07 AM
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They don't have one.
Old 11-05-2008 | 10:10 AM
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do i know it? uhm. no. but i have heard rumors...








mine does pretty good on the higher RPM's (3~4kish)
Old 11-05-2008 | 10:18 AM
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Well, the engines have hydraulic valve lifters, so, 5500 is probably the max. They do make their horsepower (what there is of it) somewhat higher in the powerband. I think they start to come on about 3 grand and run to about 5-5500. For the most part, I never get mine into the powerband.
Old 11-05-2008 | 10:26 AM
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they start to pull at about 2500 rpms and fall on its face at about 5100rpm , that is it and it still isnt making any real power , its a jk thing
Old 11-05-2008 | 11:18 AM
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Originally Posted by lijeepguy
they start to pull at about 2500 rpms and fall on its face at about 5100rpm , that is it and it still isnt making any real power , its a jk thing
Old 11-05-2008 | 11:36 AM
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what i mean by powerband is what section of RPM do you get the most efficient power. Example: 2000 - 3000 Rpm
Old 11-05-2008 | 01:30 PM
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Originally Posted by superduperman86
what i mean by powerband is what section of RPM do you get the most efficient power. Example: 2000 - 3000 Rpm
I know what you meant and I gave you the answer....although not quite accurate. This however, is:

202 HP SAE @ 5,200 rpm

237 ft lb @ 4,000 rpm

So, since the torque max output is at 4K and the horsepower max output is at 5200, there is your power band. From 4000-5200. Small ain't it?
Old 11-05-2008 | 02:34 PM
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Originally Posted by RedneckJeep
I know what you meant and I gave you the answer....although not quite accurate. This however, is:

202 HP SAE @ 5,200 rpm

237 ft lb @ 4,000 rpm

So, since the torque max output is at 4K and the horsepower max output is at 5200, there is your power band. From 4000-5200. Small ain't it?
So would that make it a PowerPoint?
Old 11-05-2008 | 02:39 PM
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Think the gearing would come into play as well if you have auto or stick for a tranny to be accurate.
On my 6 speed with 3:73 gears you can feel the TQ jump right up @ 1800 rpms and just gets more powerful till about 4500 or so, then it seems to start to make more noise then power so I usualy shift by then.
It does still pull pretty good to redline if you ignore the noise/vibration and the enevitable ruff shift from redline.


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