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8.1L torque limit? Bypass? hptuners

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Old Dec 27, 2010 | 09:30 AM
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Kerr's Avatar
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Default 8.1L torque limit? Bypass? hptuners

So i have my parts on now and the truck doesnt seem to be makinging the power it should... granted i havent dynoed but the seat of the pants its not where it should be.

8.1L headers, exhaust, intake, whipple, intercooler, cam, sping retainers, etc etc etc..

In hp tuners, ive noticed the max you can in the computer is 640ltq in the motor settings and in the tranmission setting. So is there any way around this.. Stock a 8.1L makes 455lbt they say the whipple alone bumps it 780lbtq then figure maybe 50 for the cam...

The truck runs good, dont get me wrong.. its impressive for a 8200 lbt brick.. Its just not 800+lbtq good. So what im thinking is the computer is some how pulling power if the max it will alow is 640lbtq as it shows on the hp tuners screan
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Old Dec 27, 2010 | 09:48 PM
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maxing out the tq management tables effectively turns off tq management, if something is holding your truck back its not that table.
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Old Dec 27, 2010 | 10:43 PM
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Hey Bill, are you a member of any other forums beside here and HP Tuners? I'd like to see this question asked and answered by the same two guys at more than just two forums.


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