Inside Matt Field’s Drift Assassin Nissan S14

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An Aeromotive ORB 12 Pro Series fuel filter with an alcohol 10 micron glass filter keeps the ethanol fuel clean.  Alcohol based fuels attract dirt like a magnet and a filter that can really clean the fuel is important to keep the injectors from clogging. 
The fuel pressure is controlled by an Aeromotive extreme flow dual port regulator.  An engine that burns alcohol at the rate of 1000 plus power needs a lot of capacity in the fuel handling department. The regulator is designed to handle up to 9 GPM and 125 psi.  The regulator has a 1:1 step up for forced induction applications. 
Matt's front suspension is made by Parts Shop Max or PSM.  Matt has been an essential part in the development of the PSM Limit Break kit. The Limit break kit is one of the most impressive S chassis drift suspension systems made.

The limit break system can handle up to 70 degrees of steering angle and has more adjustment than any other suspension set up on the market. Camber, caster, kingpin angle, roll center, track width, trail, steering angle, Ackerman angle and scrub radius can all be adjusted with the limit break system.

The front suspension of the kit has a lower control arm, a special upper hat and a knuckle that lowers the car without messing up the bump steer and roll center. It also quickens the steering and gives more steering lock.

The skilled crew chief can work miracles with this system and the stupid can really mess a car's handling up!

The limit break system is set up to run a front swaybar, unlike many angle increasing drift suspension systems. We really like that feature and think drift cars need to run bars. In Matt's case a 3 way adjustable 27mm Progress front sway bar is used.

 

The front coilover is PSM's 3-way adjustable remote resovoir shock. It uses a 9 Kg Swift spring.  It is independently adjustable for high and low speed compression damping and rebound damping.  A few years ago 3 way adjustable shocks were unheard of in drifting but now they are becoming the norm for pro cars. 

Some neat features are that the ride height can be adjusted independently of preload. The camber can also be adjusted by an excentric at the upper bolt.  You can see how the camber plate is very adjustable in this picture.

 

The Swift springs use thrust bearings to reduce friction and allow the damper to operate with less spring kinking force.  This reduce tire shock and improves grip. You can see the thrust bearings above the ride height adjustment collar. 
At really high steering angles the caster must be reduced to prevent steering sticking and extreme jacking which can hurt grip and overload the power steering.

The PSM limit break system allows a large amount of caster adjustment.  The system also allows for a big amount of strut offset to accommodate a big change in front track to make room for steering angle in the wheelwells. 

The upper mount also allows for a big adjustments to reduce king pin inclination which can also cause severe jacking and steering sticking at big steering angles. 

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