Stock 05 LS2 GTO numbers!
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From: The Confederacy
Stock 05 LS2 GTO numbers! My brother bought an 05 M6 LS2 GTO a couple of months ago and finally got it on the dyno this past Saturday. I was really impressed with the power it made. The car is bone stock down to the paper filter. At the time the dyno was done the car had 2,300 miles on it. It was also running VERY rich on the top end. I wish HPtuners would hurry up with their LS2 stuff 
Right now his plans for the car is to get about 7-8,000 miles on it and add some headers and a small cam, along with a pulley and good exhaust to it.
Right now his plans for the car is to get about 7-8,000 miles on it and add some headers and a small cam, along with a pulley and good exhaust to it. Thread Starter
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From: The Confederacy
Originally Posted by Checkmate
Nice #'s, a little rich though.. I see GM is still adjusting the tunes so the vette stays on top. 
I'd like to see what it would do "tweaked in". damn! stout as hell for a stocker. that puts it right at the 400FWHP given a 15% loss. Nice!
i agree w/ the hptuners ( once it gets out ) u'll pick up a good bit but of course you already know that gomer
i agree w/ the hptuners ( once it gets out ) u'll pick up a good bit but of course you already know that gomer
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From: Raleigh, NC
Originally Posted by Checkmate
Nice #'s, a little rich though.. I see GM is still adjusting the tunes so the vette stays on top.
I would not call that VERY rich. Maybe 5 ponies on the table,but if it were my personal car I would leave it alone. Even after headers / cam I would only tune it to 12.5 or so. Just IMHO
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Originally Posted by niphilli
My z06 was 11.5:1 from the factory
I would not call that VERY rich. Maybe 5 ponies on the table,but if it were my personal car I would leave it alone. Even after headers / cam I would only tune it to 12.5 or so. Just IMHO
I would not call that VERY rich. Maybe 5 ponies on the table,but if it were my personal car I would leave it alone. Even after headers / cam I would only tune it to 12.5 or so. Just IMHO
Brandon
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From: The Confederacy
I've had pretty good luck with my car running it where most people consider it "too lean", so that's the plan for the GTO too. I'd like to know how much timing it is getting too.... man, waiting for this software is going to be a bitch.
Originally Posted by niphilli
My z06 was 11.5:1 from the factory
I would not call that VERY rich. Maybe 5 ponies on the table,but if it were my personal car I would leave it alone. Even after headers / cam I would only tune it to 12.5 or so. Just IMHO
I would not call that VERY rich. Maybe 5 ponies on the table,but if it were my personal car I would leave it alone. Even after headers / cam I would only tune it to 12.5 or so. Just IMHO
I have seen on many occations where a LS1 running rich in the low 12's pick up at least 7-8 RWHP, and if you look closely the car is at aprox 11.9 in the high RPM's, where the car makes peak HP.
If I were to make an educated guess, I would venture to say 10-12 RWHP at a dyno reading of 12.7-12.9 (conditions being equal)
Nice #'s, my 02 A4 Z28 with LT's, high flow cats, predator tune, fipk, tb bypass and catback put down almost the same exact #'s just a tad little more torque. Nice to know GM is still underating their h.p #'s.
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From: STL
Originally Posted by Checkmate
Nice #'s, a little rich though.. I see GM is still adjusting the tunes so the vette stays on top.
