Category: CTS-V

For most of us, a 900whp V3 CTS-V is definitely near the top of the list of dream daily drivers. And not one to dream without taking action, Jeff decided to bring us his 2017 Cadillac CTS-V to make that dream a reality!

Up first in the shop, Alex disassembled the LT4 to the short block and reassembled with a camshaft from Weapon X Motorsports, phase limiter from COMP Cams, valve spring set from PAC Racing Springs, rocker arm bronze bushing trunnion upgrade from Smith Brothers Pushrods, pushrods from COMP Cams, DOD delete plugs from Cam Motion, 2110 Dog Bone Style lifters from Johnson Lifters, CNC ported cylinder heads from Katech, LTR7IX-11 spark plugs from NGK Spark Plugs, custom fabricated ignition coil relocation plates with MSD Performance spark plug wires wrapped in Protect-a-Boots from Design Engineering, Inc., cylinder head studs from ARP, a W175AX 2.9L twin-screw system from Whipple Superchargers, a harmonic balancer and lower pulley setup from Weapon X Motorsports, 103mm throttle body from Nick Williams Performance, SuperFlow carbon fiber 5.00″ air-intake system from Weapon X Motorsports, 2.00″ primary ID long-tube headers from Kooks Headers and Exhaust connecting to the OEM exhaust system, SPI (Secondary Port Injection) system from Weapon X Motorsports, auxiliary fuel pump and Flex Fuel conversion from DSX Tuning, Boost Chiller setup from Weapon X Motorsports to keep output consistent even in the southeast summer heat, along with all the OEM GM odds and ends to bring it all together and eliminate DOD/AFM.

With the mechanical work wrapped in the shop, Matt strapped her down to the rollers for Vlad to perform a custom Flex Fuel calibration via HP Tuners. With the Whipple 2.9L delivering ~16psi, Vlad dialed in 93 octane first coming in at a strong 794.26whp & 737.38lbft. Then with E85 in the tank, the LT4’s output jumped to a repeatable 880.01whp & 832.93lbft, with a best run of 901.07whp & 841.68lbft! Plenty more jam in the jar with additional boost pressure, but for now, Jeff’s going to have a blast with the extra 330whp. Stay tuned for more to come from this badass V3 in the future!

Leo brought us his 2012 Cadillac CTS-V to get it 9-second capable!

Up first in the shop, Andrew set the V2 up with a harmonic balancer from Lingenfelter Performance Engineering, pinned crankshaft to eliminate slippage, paired with a 9.17″ lower supercharger pulley from Lingenfelter Performance Engineering to further overdrive the supercharger by 18%, an auxiliary fuel pump system from DSX Tuning, all perfectly complementing the existing modifications including a Stage-III Torque 3-bolt conversion camshaft from Brian Tooley Racing, valve train from Brian Tooley Racing, rocker arm bronze bushing trunnion upgrade from Smith Brothers Pushrods, long-tube headers from Speed Engineering, 1300cc fuel injectors from Fuel Injector Clinic, 340lph in-tank fuel pumps from AEM Performance Electronics, Flex Fuel conversion from DSX Tuning, 2.38″ GripTec upper pulley from ZPE Industries, a 102mm throttle body from Nick Williams Performance mated to a port matched supercharger snout, breathing in through a 5″ cold-air intake system, all topped off with an 8-gallon trunk-mounted icebox from PNRWelding.

With the mechanical work wrapped in the shop, Matt strapped her down to the rollers for Vlad to perform a custom Flex Fuel calibration via HP Tuners. With 86° F ambient air and 67% humidity, Vlad increased the LSA’s output to 740.44whp & 756.57lbft on E85! With power where it needs to be, transmitting through 28″ M&H Racemaster radials, Leo’s in good to shape to get his 9-second slip!

Brian brought us his 2019 Cadillac CTS-V for the first round of modifications!

Up first, John strapped her down for some baseline dyno runs to establish our starting point (coming in at 576.90whp & 633.52lbft), then next up the shop, Thomas set the LT4 up with a Roto-Fab, LLC air-intake system, GripTec 2.30″ upper supercharger pulley, a Mightymouse Solutions Mild catch can, Stainless Works 2.00″ primary OD long-tube headers Cerakoted by Detective Coating, MSD Performance spark-plug wires wrapped in Design Engineering, Inc. Protect-a-Boots, C&R Racing 27mm core heat exchanger, and a Lingenfelter Performance Engineering 160° thermostat.

With the mechanical work wrapped in the shop, John strapped her back down for Vlad to perform a custom calibration via HP Tuners. The results? 652.99whp & 668.75lbft on 93 octane, a gain of 76.09whp & 35.23lbft over stock baseline! Killer results for the first round of work, with more to come in the future.