Motivational force comes by the way of a fully built twin-turbo V6 engine built by Keasler Racing in Maryville, Tenn. The bottom-end consists of a 4.5-liter Ford SVO V6 block stuffed with all the right components. The original 4.5-liter block was bored from 3.980 inches to 4.125 inches and the original stroke of 3.50 inches was increased to 3.52 inches via a Moldex billet crankshaft. The combo increased the displacement of the SVO block by 0.2-liters, resulting in a total displacement of 4.7-liters. Filling the large cylinder bore of the block are custom 8.5:1 compression CP forged race pistons while Total Seal rings ensure perfect sealing at extreme cylinder pressures. Oliver billet rods are in charge of pushing the pistons up and down in the cylinders. Fitted in the pushrod engine is a Crane roller cam tag-teamed with Smith pushrods. The engine now incorporates a custom dry sump oiling system fabricated by Fast Times Fabrication utilizing a Moroso pan with custom baffles and windage tray, a Moroso Stage 3 pump and trick oil reservoir.
A pair of SVO aluminum race heads reworked by McKenzie Racing & Machine in Ventura, Calif keep the boost moving into the engine. The heads received McKenzie's Competition port work, which includes full port and polish and custom blending of the valve bowls. The heads were given a precision three-angle valve job and then outfitted with Ferrea hardware, including triple heavy-duty springs, oversized titanium intake valves, super-alloy exhaust valves and titanium retainers and keepers.
Mounted onto the exhaust ports of the McKenzie heads are a pair of Kiwi Design turbo headers that channel the spent gasses to two huge Turbonetics turbochargers, capable of pressurizing ambient air to 40 psi. However the turbo twins are regulated by a pair of Turbonetics Racegate wastegates to a less astronomical 30 psi during competition. As many of you know, a hot air charge from a turbocharger has yet to realize its maximum potential. To increase efficiency, a custom-fabricated Spearco liquid-to-air intercooler has been employed. From the chiller, the pressurized air is force fed into a custom Hogan sheetmetal intake. Plumbed into the intake runners are Bosch 160 lb/hr injectors filling the combustion chambers high-octane juice. Since the Ford V6 was an odd-fire engine finding a stand-alone engine management system that worked well was not easy.
Nelson eventually chose an Electromotive TEC-III engine management system. Instead of running one Motec M48 stand-alone system, which was previously installed on the Focus, the Ford incorporates two three-cylinder TEC-III units working in conjunction with each other to deliver the power. Having had a bunch of misfire problems with the previous stand-alone unit due to the odd-fire set-up, Nelson raves about the TEC-III saying it has been the saving grace of the Focus. The Electromotive unit also kills two birds with one stone since the engine management already incorporates a distributorless ignition system with individual coil packs. The entire powerplant combination has been good enough to produce 1,400 horsepower on the engine dyno, that's some serious horsepower.
With the chassis and powerplant all sorted out it was time to put some sheep's clothing on the wolf. Composite Concepts in Rivera Beach, Florida constructed the entire carbon fiber body from plugs made from the factory sheetmetal parts. The front-end of the Focus had to be extended slightly to accommodate the chassis' longer wheelbase. The hood also incorporates custom openings so the compressor sides of the turbochargers have plenty of air to ingest. The entire carbon-fiber shell only weighs an amazing 80 pounds!
So what is next for the Focus? Well as this article was put together the Hoyos Racing Focus, piloted by Matt Hartford, bettered its time with a 7.386 at 189.19 mph at the IDRC Hurricane Nationals. And as the story goes to the presses Nelson guaranteed us that the Focus should have already bagged the world's quickest title which is held currently by Siquel Racing RX-7 (7.33 at 179 mph) to go along with their world's fastest sport compact title. We just can't wait for these two Titans to go head to head and see which one is still standing in the end.