The real goodies though lie underneath the Civic's hood. All 26 of the remaining D-series faithful will surely cry foul though when they realize that the stock engine was ditched in favor of a B18C Integra GSR powerplant. Troy knew that the engine would see boost like his brother's so he fortified the block with Golden Eagle sleeves, JE 9.0:1 compression pistons, and Eagle connecting rods. Headwork comes in the form of Skunk2 valve springs, retainers, and GSR camshafts with custom KMS rocker lockers. The rocker lockers eliminate low-to-high VTEC engagement, leaving the engine in a high-cam-engaged state throughout the powerband. Breathing is improved through a JG Engine Dynamics intake manifold and BBK 70mm throttle body. The head is further ventilated with Troy's custom fabricated KMS crankcase and head breather system. Sitting on the gorgeous KMS-fabricated tubular manifold is a Turbonetics T61 turbocharger mated to a custom 3-inch down pipe and dump tube assembly. A TiAL 40mm wastegate and 50mm blow-off valve manage the pressure inside the system. Spent exhaust gases are fired down the piping through a KMS-fabricated KTeller exhaust and A'PEXi turbo muffler combination. A Spearco intercooler and C&R radiator provide ample cooling to the B-series engine. Further automotive ingenuity is displayed with Troy's use of a GM three-bar map sensor. To address the fuel system's needs, Troy selected a set of Precision 1,000cc injectors and supplied fuel utilizing an Aeromotive 1,000hp in-line pump, fuel pressure regulator, and fuel pump regulator. Said fuel is safely stored in a 10-gallon cell and, when called on, is delivered to the pump through Earl's steel-braided lines. An AEM standalone engine management system controls all engine parameters, like fuel and ignition timing.
With such a potent turbo setup, power delivery is always an issue so Troy opted for a Clutch Masters twin-disc Kevlar clutch and flywheel to get the power through all five gears. A Quaife limited-slip differential ensures that torque is distributed equally to a pair of Drive Shaft Shop Stage 2 axles. The turbocharged hatchback rides on TEIN Basic coilovers, and KMS traction bars make sure that wheel hop is decreased when the car launches down the 1320. Troy has the option to drag the Civic on M&H drag slicks and 14-inch Diamond Racing wheels or bronze 15-inch TE37 wheels mounted on Kuhmo Ecsta MX street tires. For added braking efficiency over the stock CX pieces, Troy installed complete front and rear DC2 Integra brakes.
Troy also readied the cockpit with the installation of an Art Morrison six-point rollcage, Simpson five-point safety harnesses, and Sparco Torino racing seats. Driver feedback items include an Auto Meter tachometer and gauges that display oil pressure, water temperature, and boost pressure. A custom KMS aluminum switch panel sits beneath the dash and provides all of the appropriate toggles, buttons, and switches necessary for making it all happen.
KMS' green machine has yet to hit the dyno but the brothers estimate power to be around 380 whp-and we believe 'em. On street tires, the Civic made a 12.26-second pass at 126 mph at just 15 psi. With both brothers displaying matching powerhouse Honda hatchbacks, rest assured that business at KMS Motorsports is anything but usual.