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Old 10-25-2011, 01:54 AM
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600hp isn't out of the question. I put down 620 with my 6.0 at 10psi. Granted I was running methanol, but also **** for timing cause of bad plugs.
Old 10-25-2011, 02:02 AM
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Originally Posted by gonzo 6.0
whoa whoa,back the train up for just a second.Would you give us a break down on how you got to 422 HP cammed?What other supporting mods? cam specs? tuner?you hit the track?Appreciate the info.
sure thing, specs on the cam im not too sure but the last time i called the shop they told me it was the 401 comp cam with the VVT i can double check when i go to drop it off all i have is a VVT cam, 1 3/4'' long tubes from pacesetter, 3'' y-pipe, 3 1/2'' dual exhaust with flowmaster super 44s, 160* thermal stat, new comp push rods, springs, retainers, valve locks, stock rocker arms, K&N cold air intake, tuned by sam with 93oct, and tuned tranny and ended up with 422rwhp and 417rwtq im asking them to print out a dyno sheet again of their records and will post it up fastest time in the 1/8 was an 8.42 and fastest 1/4 was a 12.78 and slowest so for was a 13.22 having problems on the tranny hitting 2nd
Old 10-25-2011, 02:05 AM
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Originally Posted by smokeshow
600hp isn't out of the question. I put down 620 with my 6.0 at 10psi. Granted I was running methanol, but also **** for timing cause of bad plugs.
620??? really good numbers is that with stock bottom end? i really would like 620 to 650 but dont wanna blow chit up lol
Old 10-25-2011, 02:31 AM
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Yeah, stock bottom end. LS engines are tough.
Old 10-25-2011, 09:44 AM
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Originally Posted by smokeshow
600hp isn't out of the question. I put down 620 with my 6.0 at 10psi. Granted I was running methanol, but also **** for timing cause of bad plugs.
Jake don't argue! You know who I am! (IDRIVEAG8GT)

For some reason that screen name didn't meet the standards of the site so I had to use what it is now. Lol.
Old 10-25-2011, 01:31 PM
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Originally Posted by Gray Ghost Silverado
Jake don't argue! You know who I am! (IDRIVEAG8GT)

For some reason that screen name didn't meet the standards of the site so I had to use what it is now. Lol.
Hah all right, THIS guy...
Old 10-25-2011, 01:40 PM
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Originally Posted by 62nalide
Ok guys wanted to share the news lol I'm dropping off my cammed 2011 2wd Denali off to the speed shop and getting a custom fab front mount T76 with the intercooler behind the grill and a duranax 4" exhaust any idea what I would be making with 8lbs? Right now I'm at 422rwhp 417rwtq oh and how much psi can my bottom end take? Oh and it's a 6.2L
So since I am in Dallas I call dibs on your old exhaust system!
I need it come on
Old 10-25-2011, 01:55 PM
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Originally Posted by Grunt6.2LTZ
So since I am in Dallas I call dibs on your old exhaust system!
I need it come on
Sorry bro someone here beat you to it unless he changes his mind I'll keep u posted
Old 10-25-2011, 02:11 PM
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Which shop installed your VVT, and who tuned it?
Old 10-25-2011, 02:15 PM
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Originally Posted by Grunt6.2LTZ
Which shop installed your VVT, and who tuned it?
Speedtek performance tuned by Sam using HPTuners


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