World's First rear mount turbo M275 V12 - 2003 Mercedes Benz CL600

850+ hours of work, several broken knuckles, and one crazy idea.

UPDATE completed a 5,700 mile trip across America and back in 11 days
https://www.youtube.com/watch?v=-99JuvriTnc

Projects and Modifications - in data logging / early tuning stages

More build photos on my IG : ConeKillerAUTOx (and no - I don’t auto cross this car haha)

Suspension / Braking / Wheels
• Removed ABC system
• Removed ABC control unit
• Removed stock ABC/Power steering pump
• ABC System Deletion
• ABC Pump Deletion
• Power steering pump conversion to w220 non ABC
• Coilover Suspension Conversion (Eibach)
• 18” Lightweight MB 5 spoke rims
• 18” TOYO R888 Tires (275 rear / 255 front)
• EuroParts/Mercedes lower and upper control arms
• Brembo upgraded rotors throughout
• Brembo 4/6 pot calipers

Ignition / Electronics / Computer Management
• Mercedes Benz Coil Packs
• ECS Mercedes Benz Ignition Control Module
• 24set of step 7 cold NGK Plugs
• Mercedes Benz gas pedal with new pedal sensor
• ABS sensors throughout
• ECS Transmission conductor plate (3x)
• ECS Transmission wiring harness
• Eurocharged Transmission Control Module
• Eurocharged ECU Tuning
• Glowshift gauges (wideband A/F, boost, oil temp, 2x oil pressure, nitrous pressure, fuel pressure)
• GReddy Spec ii electronic boost controller
• Remote mount Whistler 360 radar detector
• Rewired all stock sensors (MAP, temp, pressure, etc)

Engine / Cooling / Turbo / Transmission
• Removed stock turbos
• Removed stock exhaust / stock turbo manifolds
• Cut and capped existing oil feed / return lines
• Looped stock turbo water feed/return lines
• Removed washer fluid Reservoir
• Removed heating lines to washer fluid
• Removed stock steering wheel
• Removed stock heat exchanger
• Separate coolant reservoir/system for intercoolers
• 2x Electronic fans for heat exchanger
• 2x Bosch water pumps for intercooler circulation
• Custom Water-to-Air Intercooler
• Water ICE tank
• Water lines to and from backseat/engine bay
• Mercedes 2000-2002 non turbo exhaust manifolds
• Nitrous Express 10Lb - 125 shot (wet-shot) system
• Nitrous Express Purge system
• Massive front mount heat exchanger
• Borg Warner rear mount S400 series turbo
o Compressor Wheel: 74.5mm / 101.45mm - 95lbs/min
o Turbine Wheel: 78mm x 87mm
o Compressor Inlet: 5”
o Compressor Outlet: 4”
o Turbine inlet: 0.90 Divided T4
o Turbine Outlet: 4”
• 2x TurboWerx Oil pumps (1 scavenge / 1 feed)
• 5 QT remote standalone oil reservoir for turbo only
• Oil feed/return lines + Front mount oil cooler
• Mobile1 Full Synthetic 0W-40 throughout
• Replaced all stock vacuum lines
• TiAL Sport 50mm MV-R Wastegate
• TiAL Sport 50mm Blow Off Valves X2
• GReddy Electronic Boost Control Valve Spec ii
• SLR Mercedes McLaren 722.6 Solenoid/spring upgrade kit (used a few parts from it)