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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Finally got around to installing my bolt ons and getting the car tuned. This was on the same Dyno. Unfortunately, the shop experienced a computer crash and lost some dynographs, my baseline included. I do have the original graph, but no overlay so comparison is a bit more difficult.
Stock, the car made 471/440 SAE 5
I added Kooks 2" headers with high flow cats. Stock out of box MSD. Katech 103mm throttle body. Halltech 103. Corsa Extreme cat back.
Car made 502/476. SAE 5
Big jump in torque in the midrange. Power peaks a hair sooner and carries better. All in all I'm satisfied. I was told it's the strongest stock heads and cam car they've done. Throttle response is great, extremely snappy down low and violent in the midrange. My heads are 100% untouched. Everything is in spec. Wasn't a huge gain for the money spent, but it builds a great foundation for future mods. I held off on porting the intake manifold so I could have it port matched to the heads. I gathered I gave up maybe 10hp or so on a stock heads and cam setup. Thanks for looking! The car is a blast and I can't wait until warmer weather.
Solid gains for a few mods, and like you said they will only help out even more in the future when you do the heads and add a cam. It's always fun to do things in stages and track progress!
I think you're leaving more than 10 hp on the table. My car with ARH 2" headers w/catted x-pipe, MF108 intake and Mamo ported MSD and 103 mm TB made 530 at the wheels. Obviously different dyno conditions so it's not perfectly apples to apples but there is a lot more potential in these engines with stock heads and cam than people realize.
I think you're leaving more than 10 hp on the table. My car with ARH 2" headers w/catted x-pipe, MF108 intake and Mamo ported MSD and 103 mm TB made 530 at the wheels. Obviously different dyno conditions so it's not perfectly apples to apples but there is a lot more potential in these engines with stock heads and cam than people realize.
What did your car baseline? What was the total gain?
I think you're leaving more than 10 hp on the table. My car with ARH 2" headers w/catted x-pipe, MF108 intake and Mamo ported MSD and 103 mm TB made 530 at the wheels. Obviously different dyno conditions so it's not perfectly apples to apples but there is a lot more potential in these engines with stock heads and cam than people realize.
Do you have a baseline before the mods? I'd be curious to see how much you gained overall.
Solid gains for a few mods, and like you said they will only help out even more in the future when you do the heads and add a cam. It's always fun to do things in stages and track progress!
That's how I've always liked to do things. I'm glad I decided to check my heads instead of going straight to H/C/I. The journey is often more fun than the destination.
I personally think the stock cam is quite good. I’d anticipate if you get a good set of heads and port the intake you will make 560 with the stock cam
If I knew for sure I could do that, I'd keep the stock cam. I love how the car drives and I don't really have the need or desire for a 650whp massive cam monster that has poor manners. I've typically had good luck getting stage 4 cams to drive fairly nice but you can never get that stock drivability with them.
If I knew for sure I could do that, I'd keep the stock cam. I love how the car drives and I don't really have the need or desire for a 650whp massive cam monster that has poor manners. I've typically had good luck getting stage 4 cams to drive fairly nice but you can never get that stock drivability with them.
call and talk to Tony Mamo about a set of his heads and port match with your intake.
I made 528/495 STD with the stock intake manifold and stock exhaust manifolds with bolt-ons and AI heads.
If I knew for sure I could do that, I'd keep the stock cam. I love how the car drives and I don't really have the need or desire for a 650whp massive cam monster that has poor manners. I've typically had good luck getting stage 4 cams to drive fairly nice but you can never get that stock drivability with them.
cam motion stage 2 ls7 cam.
I have it going in mine. It’s supposed to make great power and retain good driving characteristics.
What did your car baseline? What was the total gain?
Originally Posted by c6Zobsessed
Do you have a baseline before the mods? I'd be curious to see how much you gained overall.
Unfortunately I didn't have the time or money to baseline the car before mods. I think the first run before the tune was altered was 512, that's the only "baseline" I have.
id love to see the OP prove you wrong. At minimum he will see 35 from heads with a CR bump and another 10 from mamo porting
With a stock cam ????
The only way he'd reach that number (SAE) is with a cam swap, with the heads. Compression bump alone with head porting won't net 35 RWHP.
But....it's is a chassis dyno, so you can tweak a few things to get it there....maybe.
With a stock cam ????
The only way he'd reach that number (SAE) is with a cam swap, with the heads. Compression bump alone with head porting won't net 35 RWHP.
But....it's is a chassis dyno, so you can tweak a few things to get it there....maybe.
I netted 45+ from my AI heads with stock cam, intake manifold, and stock exhaust manifolds (not including tune). Total net was 85RWHP from heads, Calaway honker, x-pipe, ported TB, tune .. Stock intake manifold (cleaned up by AI), stock exhaust manifold 12.5:1 AFR / .85 lambda with 22 degrees of timing.
I netted 45+ from my AI heads with stock cam, intake manifold, and stock exhaust manifolds (not including tune). Total net was 85RWHP from heads, Calaway honker, x-pipe, ported TB, tune .. Stock intake manifold, stock exhaust manifold
Wait......you picked up enough airflow on a set of OEM stock heads worked over by Advanced Inductions to pickup 45+ rear wheel horsepower on an otherwise stock LS7....not to include any tuning to ????
Wait......you picked up enough airflow on a set of OEM stock heads worked over by Advanced Inductions to pickup 45+ rear wheel horsepower on an otherwise stock LS7....not to include any tuning to ????
Yes
Check out Race Proven Motorsports youtube channel to see atleast two other examples of this. They are netting between 60-75 RWHP with AI headswap and tune only. These days they have started using Frankenstein heads, and I have not seen a FED head only dyno, but the FED heads have similar results to the AIs on H/C packages. I would put the AI heads a few steps above WCCH and AHP, but not any better than the afternarket offerings from Brodix, FED, TrickFlow/Mamo, etc
People dont realize how well the LS7 responds to a little compression and some trick exhaust port work. THey also dont realize how well the stock intake and exhaust system works. The crutch on the LS7 is the exhaust port flow not the camshaft
Check out Race Proven Motorsports youtube channel to see atleast two other examples of this. They are netting between 60-75 RWHP with AI headswap and tune only.
Damn. I guess I should have saved thousands and went with just AI heads. I went from 469 whp stock to 558 whp dynojet with the addition of Callaway Honker CAI, NW 102 tb, Mamo ported MSD, ported/milled .012 WCCH heads, 2" American Racing headers and a BTR Stage 2 cam (230/246 .644/.630 115 +4). Work done by Doug Rippie Motorsports who have been doing this for many many years with a shop full of LS/LS7s year round.
Check out Race Proven Motorsports youtube channel to see atleast two other examples of this. They are netting between 60-75 RWHP with AI headswap and tune only. These days they have started using Frankenstein heads, and I have not seen a FED head only dyno, but the FED heads have similar results to the AIs on H/C packages. I would put the AI heads a few steps above WCCH and AHP, but not any better than the afternarket offerings from Brodix, FED, TrickFlow/Mamo, etc
People dont realize how well the LS7 responds to a little compression and some trick exhaust port work. THey also dont realize how well the stock intake and exhaust system works. The crutch on the LS7 is the exhaust port flow not the camshaft
02-02-2024, 08:04 AM
Bolt on numbers are in!
