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| The APR carbon wing is mounted solidly to the chassis through these aero tubed mounts. Many of the top drift cars use aero tuning, especialy on the faster tracks. |
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| The car also has a functional front splitter. With the speeds that drift cars are now reaching aerodynamics are becoming something to be considered. A splitter also makes the car look closer to cones, something that can help judging and one of the reasons why it’s painted a bright contrasting orange! |
In addition to the bumper bars, we had to construct mounts for the custom APR wing. Most wings are mounted to the trunk via brackets. We felt that the trunk had too much flex in it to withstand any down force so we felt the best way to connect the wing was to the chassis. It had to look cool considering the wing not only provided performance value but had to look really good. We opted to use streamlined tubing. The tubing looks just as aerodynamic as the wing and is attached directly to the chassis right at the rear-most part of the cross-member. The amount of direct down force to the chassis is second to none.
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| The three rotor turbo 20B engine is a very tight fit in an engine compartment designed for a two rotor engine. The 20B is powerful but it is big and heavy. It weighs more than an LS V8 engine but makes more power than one. Kyle Mohan of Mazdatrix built the motor which is street ported and uses Lannetti apex seals. All parts are WPC treated. The engine produces 700 WHP and 500 lb/ft of torque at only 17 lbs of boost. The engine has a 8200 rpm rev limit. |
With the engineering on the rear end done, it was time to address the front end of the Mazda RX8. We will start with the power-plant. Bergenholtz Racing has been known for drag racing and horsepower. No matter what we wanted, we wanted mass amounts of power. It was in our nature for God’s sake. We noticed competitors in Formula Drift were opting for V8 power-plants. Horsepower seemed to be the name of the game. Horsepower made the drift cars faster and easier to drive and torque on hand at a moment’s notice for the Joons was a must. We opted for a Mazda 20B rotary 3-rotor power-plant with turbo. The Mazda 3-rotor engines make stupendous amounts of power with turbo reliability. We would enlist the services of Kyle Mohan of Mazdatrix to fully build the engine complete with street porting. Mazdatrix did an amazing job and assisted us in consulting on the proper components to surround the Mazda 3-rotor. In addition, we WPC Treated the whole motor for durability and longevity. All the plumbing in the RX8 was handled by Baker Precision.
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| You can see the humongous 60mm Tial wastegate and barely see the hotside of the GT40XSPL turbo due to the tightness of everything. |
The intake manifold for the Mazda 3-rotor appears to be stock but a large amount of fabrication work went into it. The factory manifold has a large amount of runners within it and this takes up plenum volume. The manifold appears to look like a plenum but is far from it. Encased in the plenum are several runners. Based on my experience I did not like this design. I proceeded to cut the manifold in half and port all the runners out. I wanted to create a manifold design that was a true plenum. The plenum would act as a reservoir of air for all the runners to feed from. The runners feeding the plenum were quite long so I did not worry too much about losing torque.
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| The big HKS tube and fin intercooler is V-mounted with the CSF radiator. This gives better cooling in a sideways traveling drift car. |
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| Dual Motec CDI untis fire Nology coils to keep the fire lit. |
