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2004 GTO numbers

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Old 03-17-2009, 05:20 PM
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Default 2004 GTO numbers

I know I always hated these threads but a friend of mine asked me to post this so here it goes

Car is a 2004 LS1 GTO M6
Mods are:
Texas speed 228R, Patriot Duel Golds, Hardened Pushrods
Monster Stage III clutch (Maybe Stage 2.5 if its out by then)
Ported TB
Pacesetter LT's, Catless mids, Magnaflow Catback
Underdrive Pulley
K&N CAI

Car will be tuned by a very reputable tuner from my area

What kind of numbers do you think it will put down on a Dynojet?

He is hoping to crack 400RWHP
Old 03-17-2009, 06:03 PM
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395-405rwhp

My stalled A4 put down 400rwhp with the 228R without an ud pulley.
Old 03-17-2009, 06:52 PM
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Originally Posted by navyblueSS
395-405rwhp

My stalled A4 put down 400rwhp with the 228R without an ud pulley.
Well thats the goal (400+) I hope I can achieve it.
Old 03-18-2009, 08:23 AM
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What's the lift on that cam? It seems like a moderate cam, so I'd guess in the 385-395 range. 400+ would definitely be sweet, though!
Old 03-18-2009, 02:42 PM
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Anyone else have a guesstimate?

Originally Posted by ScreaminRedZ
What's the lift on that cam? It seems like a moderate cam, so I'd guess in the 385-395 range. 400+ would definitely be sweet, though!
.588/.588 on XRE lobes



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