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[VR] Twin Turbo 440ci Camaro SS makes 1600+RWHP!!!!

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Old 09-19-2018, 07:47 AM
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Default [VR] Twin Turbo 440ci Camaro SS makes 1600+RWHP!!!!



Back in early 2016 we received a phone call from a gentleman out of South Florida that owned a Whipple supercharged 5th gen Camaro SS and was looking to completely change directions on the car to start down the path of building one of the quickest and most powerful 2010+ Camaros in the country. Joe knew that he had a long road ahead of him, but was planning to do the project mostly himself with the help of a local tuner that had worked with him on his cars previously. The first step in the process was to build an engine capable of most anything that they were going throw at it, which is where this initial call came in. We put together an engine combination that we would prefer for one of our builds. Joe’s goals were simple. He wanted to make over 1,500rwhp, still be fairly reliable, and be able to not only be effective on the track, but also terrorize the local streets in his area. The longblock combination that we landed on was as follows:



· GM LSX Standard Deck Block

· Callies Billet CCW Crankshaft (4.125”)

· Callies Ultra Billet I-Beam Connecting Rods (6.125”

· Wiseco Custom Forged Pistons w/ Full Coating and Gas Porting (4.125” Bore)

· Coated Main/Rod Bearings

· ARP Main Stud Kit

· MAST Motorsports 285cc LS7 Cylinder Heads

· Isky Bushed Solid Roller Lifters

· T&D Shaft Mount Rocker Arms

· Vengeance Racing Custom Spec Solid Roller Camshaft

· ARP LSX 6-Bolt Head Stud Kit w/ Cometic Gaskets

· Melling Oil Pump (at the time was still hydraulic roller)

· Vengeance Racing Billet Valve Covers





Joe took delivery of his engine and started removing the current LS3 based combination that was in the car to prepare for install. As sometimes happens, Joe realized that the project was starting to develop into something that he preferred a shop to handle from front to back not only to free up some time on his end and complete the project faster, but also to add that extra piece of confidence to the build at these power levels. Joe stopped by at our Street Car Takeover event later that same year and started discussing his plans to wrap up the build on the car. The Camaro was already fitted with a full set of QA1 adjustable coilovers, every suspension link/chassis brace available, a Rossler TH400 transmission, and Strange 9” rear end conversion so the focus was solely on power management and delivery while it was here with us. The foundation for the power delivery on the car would start with a completely custom fabricated twin-turbo system built here in house using a pair of Precision Turbo Gen II 76/75 CEA billet wheel turbochargers that Joe had purchased earlier in the year. Our fabricator and shop foreman Jey Clegg spent countless hours putting together what was to be one of the cleanest turbo systems that we have had the pleasure of setting eyes on for this chassis, and used nothing but the highest quality materials for the build. A pair of TiaL blow-off-valves and wastegates, large Bell intercooler (air to water), and 100% custom fabricated turbo manifolds set off the system for this mid-mounted turbo kit. Once fabricated, everything on the hot-side was sent out to Jet-Hot for their extreme 2000 coating, and the cold-side was sent out to our local powder coater for a beautiful final finish. The LME billet intake manifold was added as well to really top off the engine bay work.























For power management, we went to our proven ECU which is the ProEFI 128 unit. The ProEFI system was configured and installed by Jey as well, and he also performed the final calibration once everything was installed. ProEFI has proven time and time again on our builds and others across the globe to provide not only precise engine management capabilities, but also give us many fail-safe features to keep our vehicles and engines performing at peak levels longer than ever. The ProEFI ECU was able to let us command boost levels and other ignition/fuel settings through their 5-position I-Boost switch mounted inside of the car so that Joe had near infinite adjustability with the car no matter what fuel or power level he wanted to use that day. Our custom fuel system and 220lb/hr fuel injectors provided plenty of fueling for this car to achieve Joe’s power goals and beyond. The car was up and running on this combination and performing flawlessly during break-in. The car came back shortly after a few shakedown runs for additional safety items to be installed as well as a conversion to a full Dailey Engineering 3-stage dry sump system featuring their billet oil pan. This did require removal of the A/C system, but in the notion of safety and reliability, this was a must at the power levels and RPM we were achieving with the engine. A custom parachute kit was installed as well as a drag wheel/tire setup, and a few suspension adjustments were also made before heading back out to the ¼ mile for more testing. But first, we had to show off a bit on the dyno and really see what this combination could do…



Once on the chassis dyno, we dialed in pump gas/low boost settings and worked our way up into ethanol fuel and increasing boost into the 40psi range for our final numbers. The result was a smooth 1,611rwhp, far beyond the original goals from the customer. Once complete on the dyno we made a few drivability tweaks and then headed to Carolina Dragway for testing. Due to an insane work schedule from the customer and his requirement to always be the one piloting the car, we’ve only been able to get out to one solid track outing and it just so happened to be one of our typical Georgia summer days, making conditions less than favorable. Also the focus of the day was to ultimately get Joe comfortable with the car as this was a whole new animal compared to his 700rwhp supercharged LS3 previously in the car. The result was a 25psi pass on the foot brake ending with a 8.86 ET @ 163mph! A 7-second ET goal has been put in place and we feel that this is easily achievable with some more track time and a few ECU and suspension tuning adjustments in place.







The Camaro is now back home in South Florida with the owner so that he can enjoy some time on the street in the remaining Florida summer, but does plan on making the trip up for our upcoming Street Car Takeover Atlanta event at the end of this month. Stay tuned for even more performance results coming soon on this beast of a 5th gen Camaro, and enjoy the GearHead Flicks produced video in the link below.


Check out more of our Feature Builds, Performance Packages and Products at our website https://vengeanceracing.net/index.html. We have a wide range of performance parts on our online store for your LS or LT build. Feel free to contact us with any questions at Sales@VengeanceRacing.net or by phone @ 678-513-7105. We look forward to hearing from you.
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Old 09-20-2018, 07:46 AM
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ttt...
Old 09-20-2018, 04:58 PM
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Nice work, car looks mean, and that power is going to be a handful at 40psi lol. Be good to see rpm instead of dyno roller speed on the dyno - looks like there is some low boost coming in early providing pretty useful power below the rpms where it all goes stratospheric
Old 09-21-2018, 11:22 AM
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Sick build !!!
Old 10-04-2018, 06:17 AM
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Originally Posted by Bazman
Nice work, car looks mean, and that power is going to be a handful at 40psi lol. Be good to see rpm instead of dyno roller speed on the dyno - looks like there is some low boost coming in early providing pretty useful power below the rpms where it all goes stratospheric
Thank you! Unfortunately the tach pick up wasn't working that day so I couldn't graph over RPM, but boost does come in early and hard with this turbo kit design which was the goal for the customer as much as he uses on the street as well.

Originally Posted by Jimbo1367
Sick build !!!
Thank you!
Old 10-04-2018, 02:46 PM
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Very good idea laying the IC over and placing it under the radiator. I assume it will have a mesh stone guard/screen to protect the core from debri and some kind of splitter directing air up?

The large front mounts are often a guaranteed way to ensure you can never hot lap on a road circuit because they simply block the radiator and once the motor heat soaks from a few WOT pulls down the straights, the temps cannot be brought back down without backing off. Keeping the radiator clear like that you have is very smart for anyone that wants to go more than 400m at a time or more than straight line high speed (where there is enough air forced through both cores to work... for a while anyway). Those of us that like to corner too know from experience how hard it is to keep cool once power levels rise. Another way I have seen is running 2 front IC's one each side so the radiator is unimpeded. I may go that route myself next time.




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