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

Updated: 12 Mar 2018

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)

Comments

This is marvelous . Omg

That is one lit af Mercedes!!

Damn, add the V12 power that car comes with, and you have a ridiculously awesome car.

Thank you!

how much money was put in it?

bought it for 7900 and have put in about 5k in repairs and 4k in modifications. no labor costs as i did it all

I’m a Benz guy by no means, but this build breaks my metaphorical neck several times over.

Nasty ride, and genuine respect for the effort put into it. 👌

Thank you very much! Learned a lot doing it for sure!

This is awesome but ngl bisimoto has been doing this to porsches for years

oh yes many other cars do it to. I just had stated for this V12 engine type / body style its the first.

this thing is madness! I love it!

Thank you!

Had it on a dyno?

Not yet, still data-logging. I am hoping to get it on a dyno by the end of July and then again at full power in September

Budget build … yeah k XD

btw how did you break ur knuckles?

I bought the car for $7,900, did all the repairs myself for $4,000-$5,000, did the modifications and fabrication minus a few parts all myself for $3,800. thats a budget build if I ever saw one to have a V12. Broke two on my right hand working on the stock suspension removal when the jammed hydraulic strut released smashing my hand into the cement. also when the transmission fell out of its mount crushing my fingers against the transmission jack while I was under the car.