performance packages?!?!
11-24-2006, 11:33 AM
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performance packages?!?! are they worth the money or would i be better off just putting something together myself..... i just bought an 04 gto ALL stock w/ low miles and im wanting 450 at the ground.... and yes i did a search.... what are some good ideas.... be specific
11-24-2006, 12:06 PM
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mikeith, To make 450 rwhp, you're gonna have to go pretty big/aggressive if you plan to stay NA. By that I mean, aftermarket intake, TB, manifold; big cam, ported heads, and LT's w/ aftermarket exhaust. Our GTO's lose more HP thru the drivetrain than the solid axle F-Body's. To make 450rwhp, you're gonna have to be about 540-550 at the flywheel of your 346 LS1. I'm not aware of any packages that claim that much...
I ain't tryin' to be a downer, if you want to go that big, More Power To Ya! Regardless, have fun with it!
I ain't tryin' to be a downer, if you want to go that big, More Power To Ya! Regardless, have fun with it!
11-24-2006, 12:22 PM
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Read the post about "Results with ETP heads". I have a post in there where my cousin's 'vette' is making 445rwhp and 406 rwtq with the ECM about 80% tuned. I should have the final #'s by the end of next week.
11-24-2006, 12:52 PM
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we lose 15-17% of our power through the drivetrain so to get 425 to the ground im going to need AT LEAST 500bhp.... anyone know of a decently priced kit making that... and yes w/ heads, cam, intake, tb, underdrive pulley, roller rockers, cai, everything.... i have exhaust covered, i already have a catback and my gf is buyin me kooks 1 7/8" LT's for X-Mas 
.... i know i know.... i can SMELL the jelousy!!! but anyway... would i be better just throwin down 3800 for a 408 shortblock and buildin little at a time from there? caus so far thats the only thing i can come up with to get the numbers i want and still be streetable
.... i know i know.... i can SMELL the jelousy!!! but anyway... would i be better just throwin down 3800 for a 408 shortblock and buildin little at a time from there? caus so far thats the only thing i can come up with to get the numbers i want and still be streetable
11-24-2006, 02:10 PM
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My cousin's car is very streetable and is his daily driver. Right now even at wide open throttle his instant mpg gauge only drops to 19 mpg. At cruise it gets 30-32 mpg on the same instant mpg gauge. His car is making 445 rear wheel HP right now with only about 80% of the ECM being recalibrated. That is the same as or more than the new Z06 that has been dyno'd at the current shop, that is tuning the car.