Sneak Peek- Matt Coffman’s 2015 Formula Drift Nissan S13


A 240 amp DC Power racing alternator provides clean and stable voltage for the electronics. Race cars often ignore the alternator and it is pretty common to see alternator failures in drifting due to the intense heat soak and extended idle times drift cars experience with tons of fans and pumps running.
Even though E99 runs cool, Matt's car had plenty of cooling capacity as you can see with the huge radiator and oil cooler.  In drifting you almost can't have enough cooling and the car has a lot of cooling system headspace.  Due to the pace of a drift event, car are run hard, then forced to sit idling for many minutes immediately after a run while the judges decide the winner. This can get intense once the event reaches the final 4 as the tempo of the event picks up and the car has to spend a lot of time running and idling continuously, especially if there are one more time draws.  Heat soak and vapor lock is a huge issue since some events can be held in areas where it is quite hot and humid. 
These lines feed oil to a valvetrain spraybar, it helps keep the rockers lubricated and the valvesprings cool with the fast valve motion that a roller cam creates. Valve springs can actually get really hot and require cooling, especially with the radical valvetrain motion that a modern inverted flank roller cam can produce.
A Fuelsafe racing fuel cell, with its flexible but tough puncture and tear resistant foam filled inner bladder can safely contain the fuel even in extremely violent accidents that breach the metal tank itself. The fuel cell also has an internal surge baffling system and multiple fuel pick ups to help enssure a constant supply of fuel even during hard cornering.  Like most pro drift cars the rear unibody is cut away at the point of the rearmost suspension pickup points and replaced with a tubular subframe.  This reduces weight and makes the car a lot easier to repair in the event of an accident. The rear subframe supports the bodywork and the fuel cell.  The fuel system uses all Radium components, from an in cell lift pump to the large surge tank to make sure that the engine gets an uninterrupted supply of E99.  The fuel hoses are all exotic fuel compatible XRP lightweight teflon lined lines needed with the alcohol based fuel.
Twin Bosch 044 motorsports fuel pumps supply the thirsty engine.  A car burning E99 consumes about 50% more fuel than gasoline so a lot of pump capacity is needed. The MoTeC M150 ECU controls the pumps, one pump runs during idle and part throttle with the second pump kicking in when the load increases. 
The high capacity Radium surge tank gets fuel from the in cell lift pump.  The fuel then goes to the twin Bosch pumps that supply the engine.  Even if the fuel is sloshed away from the lift pump pick up by cornering loads, the surge tank holds enough fuel for several seconds of running so the engine will never starve or stumble.

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