700+ rwhp 93 octane daily driver C6 Grand Sport build thread
08-04-2014, 04:21 PM
#1
700+ rwhp 93 octane daily driver C6 Grand Sport build thread I have always enjoyed driving my cars daily rather than having them as dedicated race cars. I am very pleased to report how nicely my 2013 Corvette Grand Sport has turned out. First off, my is a heavily optioned automatic car. Now before any of you purists dog the car for running an automatic, I must say that this is the fastest shifting automatic car I have ever modified. The shift response after engaging the paddle shifters is immediate.
Here are the details on the car:
Forged 416 LS3 built by LME featuring Wiseco 15cc dished pistons, Callies Compstar rods, and Callies Dragon Slayer Crank. Static compression is 10.0:1.
Cam choice: 222/242 .629/.604" 121LSA +5 advance custom Patrick G cam ground using EPS lobes from Cam Motion. This is a smooth idlling, wife-approved cam that idles at 600 rpm and sounds awesome. Good fuel economy and not a stinky cam.
HK Racing Engines sourced the Trick Flow 255 LS3 heads which were massaged by Greg Good from Houston.
Peak flow numbers were 409cfm at .650" on intake and 263cfm on exhaust. I used the TFS 448lb dual valve springs with Ti retainers. Greg worked primarily on improving the wet flow of the TFS heads as their dry flow is already excellent right out of the box.
Presence Distribution sourced the East Coast Supercharging Paxton Novi 1500 supercharger with restrictor removed. This is the most OEM looking and fitting centrifical supercharger that I've seen for the C6s. With my generous head flow, cam choice, and extra cubes, peak boost is only 11 psi. The fuel system upgrade is the ECS stage one fuel system that utilizes an inline Bosch pump activated by a Hobb switch at 2psi. This is good for over 800rwhp. No boost a pump for my combo. The stock LS3 intake manifold used the stock fuel rails and FIC 850 fuel injectors.
LSX Performance Dyno Tuning sourced the American Racing 1 7/8" long tube headers, no cats and stock 2.5" OEM NPP rear muffler section round out the mods. Kurt Decker applied a really trick Lingenfelter window switch to control the NPP exhaust so it stays closed and quiet at any rpm where throttle position is less than 80%. Above 80% throttle, the extra baffles open and it gets really loud and exotic sounding. I have the mild to wild switch if I want it to be loud all the time.
Assembly of the engine, supercharger and fuel system was handled by Mike Pabone at Late Model Racecraft in Houston. LMR also fabbed up a custom coolant crossover for cylinders 7 & 8 to keep combustion chamber temps in line with the others. LMR also constructed a trick dual hose evac system to keep crankcase pressure under control and to route crankcase gasses to a catch can reservoir at the front of the car.
All tuning was handled by yours truly using both EFI Live and HP Tuners. There are some really important tables that are exclusive to each piece of software so the best tune came from using both programs.
On LMR's dyno, the combo made 719rwhp and 653 rwtq. Here's a video of the dyno run.
Keep in mind, this run was performed with only 15 degrees of spark timing, 93 octane, no meth, and 11 psi. Don't forget this is an automatic with stock transmission and stock torque converter. If I want to make over 800rwhp, all I have to do is do a pulley swap, add some race fuel and crank the ignition timing up into the 20 degree range. I plan on racing the car in this upcoming Texas Mile. The car is a highway machine, it gets 23mpg and is super reliable. I give thanks to all parties involved in making this project a reality.
Here are the details on the car:
Forged 416 LS3 built by LME featuring Wiseco 15cc dished pistons, Callies Compstar rods, and Callies Dragon Slayer Crank. Static compression is 10.0:1.
Cam choice: 222/242 .629/.604" 121LSA +5 advance custom Patrick G cam ground using EPS lobes from Cam Motion. This is a smooth idlling, wife-approved cam that idles at 600 rpm and sounds awesome. Good fuel economy and not a stinky cam.
HK Racing Engines sourced the Trick Flow 255 LS3 heads which were massaged by Greg Good from Houston.
Peak flow numbers were 409cfm at .650" on intake and 263cfm on exhaust. I used the TFS 448lb dual valve springs with Ti retainers. Greg worked primarily on improving the wet flow of the TFS heads as their dry flow is already excellent right out of the box.
Presence Distribution sourced the East Coast Supercharging Paxton Novi 1500 supercharger with restrictor removed. This is the most OEM looking and fitting centrifical supercharger that I've seen for the C6s. With my generous head flow, cam choice, and extra cubes, peak boost is only 11 psi. The fuel system upgrade is the ECS stage one fuel system that utilizes an inline Bosch pump activated by a Hobb switch at 2psi. This is good for over 800rwhp. No boost a pump for my combo. The stock LS3 intake manifold used the stock fuel rails and FIC 850 fuel injectors.
LSX Performance Dyno Tuning sourced the American Racing 1 7/8" long tube headers, no cats and stock 2.5" OEM NPP rear muffler section round out the mods. Kurt Decker applied a really trick Lingenfelter window switch to control the NPP exhaust so it stays closed and quiet at any rpm where throttle position is less than 80%. Above 80% throttle, the extra baffles open and it gets really loud and exotic sounding. I have the mild to wild switch if I want it to be loud all the time.
Assembly of the engine, supercharger and fuel system was handled by Mike Pabone at Late Model Racecraft in Houston. LMR also fabbed up a custom coolant crossover for cylinders 7 & 8 to keep combustion chamber temps in line with the others. LMR also constructed a trick dual hose evac system to keep crankcase pressure under control and to route crankcase gasses to a catch can reservoir at the front of the car.
All tuning was handled by yours truly using both EFI Live and HP Tuners. There are some really important tables that are exclusive to each piece of software so the best tune came from using both programs.
On LMR's dyno, the combo made 719rwhp and 653 rwtq. Here's a video of the dyno run.
Keep in mind, this run was performed with only 15 degrees of spark timing, 93 octane, no meth, and 11 psi. Don't forget this is an automatic with stock transmission and stock torque converter. If I want to make over 800rwhp, all I have to do is do a pulley swap, add some race fuel and crank the ignition timing up into the 20 degree range. I plan on racing the car in this upcoming Texas Mile. The car is a highway machine, it gets 23mpg and is super reliable. I give thanks to all parties involved in making this project a reality.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
08-04-2014, 07:07 PM
#4
Yes sir, I'm still on the 6 rib setup. With only 11psi, I'm certainly not stressing the belt at this time.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Trending Topics
08-06-2014, 04:44 PM
#15
What size injector did you go with.... I had Siemens 60lbs, but I just returned them for 80lbs.... I would like to get near 700 rear, and then spray 125 to 150 hp on top...
I wonder if I made a mistake...
What is the duty cycle on your injectors also...
I wonder if I made a mistake...
What is the duty cycle on your injectors also...
. I love ls3 vett's! Happy to see it with an auto also! Can the stock auto in a c6 GS take that power for long though? 
08-06-2014, 08:01 PM
#18
Proper tuning is the key to long trans life. I've had a bunch of customer cars with stock 6L80s take this kind of power for a long time. When you start reducing the MAF scale to accommodate larger injectors than the OS will take, you reduce the delivered torque the engine sends to the TCM. It's super important to maintain an accurate delivered torque number to the trans or it will reduce line pressure and lengthen shift times, ruining the trans in short order.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
