Panther427
New member
Stock for stock a GXP is faster. just with like 300 dollar worth of bolt ons then it becomes a drivers race.
I would have to strongly disagree with that statement. Lets look at some specs shall we.....
97-03 GTP
Horsepower: 240 hp
Torque: 280 ft-lbs
Max Horsepower: 5200 rpm
Max Torque: 3600 rpm
Curb Weight: 3559 lbs
04-05 GTP/06-07 GT
Horsepower: 260 hp
Torque: 280 ft-lbs
Max Horsepower: 5600 rpm
Max Torque: 3600 rpm
Curb Weight: 3583 lbs
05-08 GXP
Horsepower: 303 hp
Torque: 323 ft-lbs
Max Horsepower: 5600 rpm
Max Torque: 4400 rpm
Curb Weight: 3600 lbs
GXP is only 40 pounds heavier, and has 40+ hp and 40+ ft-lbs tq over the GTP/GT, giving it a better hp/tq to weight ratio. A decently modded supercharged 3.8 will walk a 5.3; but stock vs stock, 5.3 will win all day long.
I wanted to be a Marine
-Swash
:th_thumbsup-winkynoed mine after I baby'd to to the 1500 mark and the GXP dynoed at 320, after my Intake, Exaust, Mass Airflow Sensor, and SuperChips Flash Paq im at the 500 mark, Might i add all under 2k:th_winking:
No Bolt-ons GXP is putting down anywhere near 500 CRANK hp, let alone 400. This isn't bashing it is a fact. Dyno sheet please? The Turbocharged GXP put down numbers around 480-500 WHEEL Horsepower. I'm just curious to know how you got almost 200 horsepower from a intake/exhaust/tune.
I know you like all People That can't do Math or the Research for your self let me break it down and might i add i am tryin to play nice
Base Hp Before Mods 320
+ 35HP With Intake
+10HP with Mass Air Flow Sensor __P.s you need all of this for the Superchips Flash Paq to work Correctly for Max Power
+20 Magnaflow
Humm we are at 385 Already Then You Need to Run 93 Octain or higher,
Then while your flash Paq is in custom tuning Mode__(Classified)___(read the book it came with)
+90hp That easy at 475 in the front wheels.
It's great that you made this statement since now we know you're talking out your ass. He can't do the math since you're using ricer math and adding up the magical HP numbers on products.
The 5.3L is not under rated from the factory. It has 303HP at the CRANK stock. This is verified by tons of the 2006+ Impala SS owners at NAIOA who have had their car dyno'd and get about 245-250HP at the wheels. This is the stock base line. FYI, there is no way to dyno your car at the crank (like you're claiming with the numbers you're quoting) without pulling the engine. No one who knows anything about cars refers to the crank HP. All that matters is what is going to the wheels.
You do not get those kinds of gains from tunes, catbacks, and from silly sensors. Produce a dyno sheet and disappoint yourself. A modded out 5.3L with ported/polished heads, cam, exhaust upgrades, and a good tune put down 278HP at the WHEELS (which is an estimated 346.25 crank HP). You can see the dyno yourself here:
North American Impala Owners Association - Garage - mixerda's 2007 Chevrolet Impala
Just click on the icon next to his run in the "dyno run" table.
So either put up or shut up.
I know you like all People That can't do Math or the Research for your self let me break it down and might i add i am tryin to play nice
Base Hp Before Mods 320
+ 35HP With Intake
+10HP with Mass Air Flow Sensor __P.s you need all of this for the Superchips Flash Paq to work Correctly for Max Power
+20 Magnaflow
Humm we are at 385 Already Then You Need to Run 93 Octain or higher,
Then while your flash Paq is in custom tuning Mode__(Classified)___(read the book it came with)
+90hp That easy at 475 in the front wheels.
O
M
F
G
BWHAHAHAHAHAHAHAHA!!! You are so lucky I was drinking something when I read that or I would have ruined my monitor. You are such a noob on SO many levels and you don't even know it, do you?
LOL
Ya sorry but my Stock GXP only put down 245 hp. which is correct for a 20% drivtrain loss
Ya sorry but my Stock GXP only put down 245 hp. which is correct for a 20% drivtrain loss
Mine put down 252 whp stock.....installed K&N and got it up to 263 whp (259 whp in high heat and humidity).
East Coast Air and High Altitude in Colorado might have something to do with that![]()
Yep....air's pretty thin up there in Colorado. Air's even thinner where SJR GXP is......thin enough to cause hallucinations.