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Patrick G dyno tune!

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Old 01-11-2011, 11:43 AM
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cutout would gain about 15 over stock exhuast! dmh or dougs ftw
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Old 01-11-2011, 01:15 PM
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Originally Posted by Daryn
cutout would gain about 15 over stock exhuast! dmh or dougs ftw
Has that been documented - on the OEM 6.2 cat-back system? I would not have guessed that much . . .
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Old 01-11-2011, 01:16 PM
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Originally Posted by 07 Z71
Didn't know pat g did tunes, I just though he was a cam man
Nonetheless congrats
Oh yeah - he tunes a BUNCH of vehicles - from mild bolt-on trucks like mine to 8 second race cars! As I was leaving Kurt's place they were loading Jay's 9-second 4th-gen Camaro on the dyno for a tune.

Pat's a great guy - who really knows his way around tuning.
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Old 01-11-2011, 04:37 PM
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Originally Posted by Daryn
cutout would gain about 15 over stock exhuast! dmh or dougs ftw
On a bolt-on 6.2L Denali, I've only found 3-5 rwhp gain from stock muffler to no muffler. A cutout will not gain 15 until you're making well over 500rwhp in my testing. For a bolt-on 6.2L, the cutout is more of a sound mod than a performance mod.
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Old 01-11-2011, 06:35 PM
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oh well i had a stock 5.3 muffler (3'') catalytic converters ... and a cam only 6.2 ... made 458/435 with the cutout open
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Old 01-11-2011, 07:51 PM
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Originally Posted by Patrick G
On a bolt-on 6.2L Denali, I've only found 3-5 rwhp gain from stock muffler to no muffler. A cutout will not gain 15 until you're making well over 500rwhp in my testing. For a bolt-on 6.2L, the cutout is more of a sound mod than a performance mod.
That's good to hear

U see Any gains with a Ported ls7 tb. I think they will fit the trucks
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Old 01-12-2011, 10:02 AM
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Originally Posted by Patrick G
On a bolt-on 6.2L Denali, I've only found 3-5 rwhp gain from stock muffler to no muffler. A cutout will not gain 15 until you're making well over 500rwhp in my testing. For a bolt-on 6.2L, the cutout is more of a sound mod than a performance mod.
That's more like what my dumb *** was guessing. Not at all worth the noise and drone of swapping out my muffler or adding a cut-out for 3-5 HP, IMO.

Thanks for chiming in, Pat.
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Old 01-12-2011, 10:05 AM
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Originally Posted by Daryn
cam only 6.2 ... made 458/435 with the cutout open
WOW!

Sharing is caring, Daryn . . . how about filling us in on your cam specs and all your mods? I could live with 458/435 at the wheels!
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Old 01-12-2011, 01:01 PM
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230/242 .600 on a 110 Bullet grind cam

allan futral tuned it
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Old 01-12-2011, 01:07 PM
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Sounds like an awsome tune.....how much is a dyno tune from pat g?????
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