First G8 with headers
First G8 with headers Before we get into the numbers ARH deserves credit for creating a quality piece for these cars. I don't have to say much else because the numbers speak for themselves but lets just say GM left a lot on the table with these cars. You'll see the numbers from bone stock up to modded with ARH headers, RotoFab CAI, and a Kaltech Tune all in steps.
Here are the dyno sheets from all of the testing. Everything was done on our Mustang Dyno 1100SE with the converter unlocked.
Stock - 288 hp 302 ft lbs.
1. ARH Exhaust, Stock Mufflers, Stock Intake, Stock Tune - 327 hp 342 ft lbs
2. ARH Exhaust, No Mufflers, Stock Intake, Stock Tune - 328 hp 344 ft lbs.
1. ARH Exhaust, No Mufflers, RotoFab CAI, Stock Tune - 333 hp 352 ft lbs.
2. ARH Exhaust, Stock Mufflers, RotoFab CAI, Stock Tune - 332hp 349 ft lbs.
3. ARH Exhaust, Stock Mufflers, RotoFab CAI, Kaltech Tune - 343 hp 360 ft lbs.
Enjoy.
Here are the dyno sheets from all of the testing. Everything was done on our Mustang Dyno 1100SE with the converter unlocked.
Stock - 288 hp 302 ft lbs.
1. ARH Exhaust, Stock Mufflers, Stock Intake, Stock Tune - 327 hp 342 ft lbs
2. ARH Exhaust, No Mufflers, Stock Intake, Stock Tune - 328 hp 344 ft lbs.
1. ARH Exhaust, No Mufflers, RotoFab CAI, Stock Tune - 333 hp 352 ft lbs.
2. ARH Exhaust, Stock Mufflers, RotoFab CAI, Stock Tune - 332hp 349 ft lbs.
3. ARH Exhaust, Stock Mufflers, RotoFab CAI, Kaltech Tune - 343 hp 360 ft lbs.
Enjoy.
Last edited by Kaltech Tuning; Jun 13, 2008 at 11:22 AM.
TECH Senior Member
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From: Western Burbs of Detroit
This was an awesome post bro. You really showed how every step effected the amount of power the motor made. Best post as far as R&D goes in a long time. Need more sponsors to take a few extra minutes and post up like you. Very, very impressed.
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From: Western Burbs of Detroit
I almost forgot....................
Whens the cam going in ???
If you do a cam swap, will you start small and go bigger to see how she responds to more lift/duration ??
Any aftermarket head available for this thing, or will you port the stock ones ???
Subscribed man. Can't wait to see what's next for the G8..............
Whens the cam going in ???
If you do a cam swap, will you start small and go bigger to see how she responds to more lift/duration ??
Any aftermarket head available for this thing, or will you port the stock ones ???
Subscribed man. Can't wait to see what's next for the G8..............
Does the ARH system delete the cats? What does the ARH "exhaust" consist of besides headers (X-over, cat delete pipes,etc.)? Very nice gains from ARH regardless, a little disappointed with the Rotofab though. Great work guys!
Larry
Larry
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TECH Enthusiast
Joined: Dec 2002
Posts: 736
Likes: 0
From: Chattanooga,TN
I almost forgot....................
Whens the cam going in ???
If you do a cam swap, will you start small and go bigger to see how she responds to more lift/duration ??
Any aftermarket head available for this thing, or will you port the stock ones ???
Subscribed man. Can't wait to see what's next for the G8..............
Whens the cam going in ???
If you do a cam swap, will you start small and go bigger to see how she responds to more lift/duration ??
Any aftermarket head available for this thing, or will you port the stock ones ???
Subscribed man. Can't wait to see what's next for the G8..............
I'm looking into getting a G8 later this year but I would prefer the get a GXP or an M6 G8.
Thanks a lot. It was fun working with this car and figuring out what its capabilities are. There's a lot of performance to be had by properly tuning the transmission tables. During dyno simulations we found .2 in the 1/4 with the same 60 ft simply from transmission tuning. We also got this big car barking the tires on the 1-2 shift in sport mode with 2 people in the car and about 40lbs worth of stuff in the trunk.
As for cams, this particular customer needed the car back and is on his way back to nebraska. We're currently accepting appointments for those interesting in helping test cams.
As for cams, this particular customer needed the car back and is on his way back to nebraska. We're currently accepting appointments for those interesting in helping test cams.
TECH Enthusiast
Joined: May 2005
Posts: 689
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From: Perth, Australia
G8-GT L76 engine = LS2 block + L92 heads + LS3 intake + displacement on demand.
Wow, impressive results. These are basically LS2 range numbers if I'm not mistaken, correct? Definitely strong, and definitely detuned / tamed like hell from the factory. Can't wait to see some cammed ones driving around. 
TECH Enthusiast
Joined: Dec 2002
Posts: 736
Likes: 0
From: Chattanooga,TN
