GMPP headers, intake, catback?? - Page 5 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

fastdoc436 · 01-29-2009, 10:39 PM

I'm going with all 3 GMPP dealer installed parts. Warranty will be intact and I'll make some HP gains...and hoping for a little more aggressive sound. I would like to get it tune by Speed Inc in Schaumburg, IL---realizing that it would have to be de-tuned if any problems arose before I took it to the dealer while under warranty. 30 HP would be exceptable.

ArcAngel · 01-29-2009, 11:03 PM

I heard these were made with Borlas help is this true??

*GTAHVIT* · 01-30-2009, 10:18 AM

^yes I think that's true.

I'm guessing with all these and a tune you might get close to 500 at the crank. add the cam and you could get over 500... My guess.

*CamaroSpike23* · 01-30-2009, 07:39 PM

Quote:

Originally Posted by mike@newera

I would bet the intake gives 7-9 rwhp, the shorty headers give 6-8 rwhp, and the exhaust is 2-3 rwhp . Then a custom dyno tune will net you more than all of the above, I've seen it for years on all of the new GM cars, especially when you mod them, the performance upgrades generally detune the PCM which does not provide the real power gain from the performance parts installed, because the addiaional airflow causes timing to be pulled, and the AFR to richen up a bit losing power with your stock tune.

90% of all consumer cars out there run pig rich from the factory. a nice "safety" feature built into the tune on the odd chance that something screws up and you go lean.

not sure how additional airflow would cause timing to be pulled tho.

tho I will agree that all mods are complemented by a tune.

aberg · 01-31-2009, 03:53 PM

I was just at my dealer and he said that with the catback and CAI I would gain very little hp. What he could not tell me is what they would do to mileage. Up? Down? How much would it change?

*CamaroSpike23* · 01-31-2009, 05:41 PM

could go up, could go down. 1-2mpg at most

01-29-2009, 11:03 PM	#58
ArcAngel Drives: 07 Black Cobalt SS/SC Join Date: Aug 2006 Location: Manalapan-NJ Posts: 2,872	I heard these were made with Borlas help is this true?? __________________ Through HIM you believe in GOD, who raised HIM from the dead and Glorified him..

01-30-2009, 10:18 AM	#59
GTAHVIT Blessed Drives: 2013 Sonic RS MT Join Date: Dec 2007 Location: Saint Augustine FL Posts: 28,441 View My Garage	^yes I think that's true. I'm guessing with all these and a tune you might get close to 500 at the crank. add the cam and you could get over 500... My guess. __________________ Click image to see build thread. PQ - "the love of cars. It's a boys first step toward manhood and a mans last hold on boyhood." Fbodfather - "We do not want to use the Z28 moniker on a car that does not deserve this hallowed name." The_Blur - "Let's not confuse competitors with equals."

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01-29-2009, 10:39 PM	#57
fastdoc436 Drives: 2010 2SS/RS,35thLE/SS,30thAE/SS Join Date: Jan 2009 Location: Plymouth, Indiana Posts: 154 View My Garage	I'm going with all 3 GMPP dealer installed parts. Warranty will be intact and I'll make some HP gains...and hoping for a little more aggressive sound. I would like to get it tune by Speed Inc in Schaumburg, IL---realizing that it would have to be de-tuned if any problems arose before I took it to the dealer while under warranty. 30 HP would be exceptable.

01-31-2009, 03:53 PM	#61
aberg Drives: 2LT/RS Join Date: Jan 2009 Location: NY Posts: 206	I was just at my dealer and he said that with the catback and CAI I would gain very little hp. What he could not tell me is what they would do to mileage. Up? Down? How much would it change?