LS3 C6 makes 527 rwhp!
11-04-2012, 09:37 PM
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LS3 C6 makes 527 rwhp! A copy from my thread on corvetteforum:
After months of research I finally pulled the trigger on doing a cam swap. Plans for the car were an occasional drap strip visit, but mostly street driven/DD so I didn't want a car that would barely run. I contacted MANY vendors(most if not all on this forum) as to what they would suggest. I turned to Vengeance Racing for there 'stage 3' cam package that really interested me. The package included everything you needed to do the job properly.
I went ahead and installed new lifters (LS9) as I had the resources to remove the heads while I was in there anyways. A coworker who has been in the porting business for many years took my heads on as a challenge. He noticed right away that the runner didn't need much work, if any. The rough casting would be smoothed, but no excess material required removal. I also spoke with Cajun @ Bare Essentials Racing for a ported TB, and intake manifold. Mod list is as follows:
VR Katoik camshaft - 235/243 620/623 113 LSA
VR Dual Springs
Hardened Pushrods - 7.400
MELLING High Volume Oil Pump
KATECH C5R Chain
COMP Trunion Kit
ARP Cam Bolts
LS7 Timing Gear
LS9 Lifters
LS9 Spark Plugs
Ported Heads
OBX 1 7/8" headers
Catless Mids
Corsa Sports
BER Ported TB
BER Ported Intake Manifold
Dyno Tune by Walls Rod & Custom. Redline set to 7000.
The graph printed wasn't the car's best run, but was very close ~ 2 hp. Our best run, the car made 527 rwhp and 436 rwtq. I never got the final AFR ratio, but later I added a AEM wideband and afrs are around 12:1. Nonetheless, hat an animal! Big thanks to Kevin and Ryan at Vengeance Racing for all their help! As well as Cajun at BER for his assistance as well. Top notch vendors.
Idle clip(car was cold and literally was running on fumes so I just did a quick light rev):
After months of research I finally pulled the trigger on doing a cam swap. Plans for the car were an occasional drap strip visit, but mostly street driven/DD so I didn't want a car that would barely run. I contacted MANY vendors(most if not all on this forum) as to what they would suggest. I turned to Vengeance Racing for there 'stage 3' cam package that really interested me. The package included everything you needed to do the job properly.
I went ahead and installed new lifters (LS9) as I had the resources to remove the heads while I was in there anyways. A coworker who has been in the porting business for many years took my heads on as a challenge. He noticed right away that the runner didn't need much work, if any. The rough casting would be smoothed, but no excess material required removal. I also spoke with Cajun @ Bare Essentials Racing for a ported TB, and intake manifold. Mod list is as follows:
VR Katoik camshaft - 235/243 620/623 113 LSA
VR Dual Springs
Hardened Pushrods - 7.400
MELLING High Volume Oil Pump
KATECH C5R Chain
COMP Trunion Kit
ARP Cam Bolts
LS7 Timing Gear
LS9 Lifters
LS9 Spark Plugs
Ported Heads
OBX 1 7/8" headers
Catless Mids
Corsa Sports
BER Ported TB
BER Ported Intake Manifold
Dyno Tune by Walls Rod & Custom. Redline set to 7000.
The graph printed wasn't the car's best run, but was very close ~ 2 hp. Our best run, the car made 527 rwhp and 436 rwtq. I never got the final AFR ratio, but later I added a AEM wideband and afrs are around 12:1. Nonetheless, hat an animal! Big thanks to Kevin and Ryan at Vengeance Racing for all their help! As well as Cajun at BER for his assistance as well. Top notch vendors.
Idle clip(car was cold and literally was running on fumes so I just did a quick light rev):
Last edited by hangtime204; 12-11-2012 at 08:54 PM.
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12-01-2012, 12:00 PM
#16
Nice numbers.
Without getting it on a DJ it's hard to compare. MD can read anywhere from way less to a bunch higher than a DJ depending on what the operator does.
Without getting it on a DJ it's hard to compare. MD can read anywhere from way less to a bunch higher than a DJ depending on what the operator does.
Last edited by ScreaminRedZ; 12-01-2012 at 12:09 PM.
12-11-2012, 11:43 AM
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I refered back to my time slip when I ran the car and I was wrong. It ran 12.1 @ 121. Not sure on the DA but it was very warm that day ~30*C so around 90*F?? , and there was a headwind. Definitely not the day to be setting any records. Thats why I went out there in 100% street trim. 30 psi. Bridgestone re11's out back. stock size. All numbers aside, it does surge at parking lot speeds or during low speed manuevers, which I've learned to accept. The car pulls extremely hard in the mid-high range.. go figure. lol. Around the city I have no issues other than the 1st gear surging, but it drives very similiar to a stock vette at cruising speeds. Would recommend this cam for the serious hp enthusiast.