1993 Porsche 964 RS Cup Street Legal

• Factory 964 RS Cup with COA 
• 1 of 15 MY93 RS Cup & 1 of 127 Total RS Cups
• Guards red 
• 10 years of ownership and documentation (photos and receipts)
• $60k in receipts from recent engine build and transmission refresh
• Circuit spec 3.8L engine producing 320ps
• Individual throttle bodies
• Turn key Engine & Drivetrain 
• Track day ready 

Vehicle Introduction

The dream of piloting a true racecar on the street is one that is shared by many in the automotive sphere.

With the introduction of the 964 generation of the 911 came the first Porsche Carrera Cup series. In 1992 Porsche switched from a normal C2 chassis to an RS chassis for the cup cars  making this specific car 1 of 127 Carrera RS Cups built and 1 of only 15 built in 1993. Aside from the factory race preparations this 964 has recived a circuit spec 3.8L engine producing 320PS that was built by RIGHTWAY a Porsche raceshop in Suzuka City Japan( hometown of Suzuka circuit). RIGHTWAY was the sole shop to maintain and build this RS cup for the previous owner of 10+ years. In addition to the engine a host of other modifications have been made to make for a more capable machine, these will be discussed further down. In the 10+ years the previous owner had this RS cup it was gentleman raced in multiple series in Japan including, Carrera Cup, and Rush Cup . Unlike modern Porsche Cup cars this 964 RS Cup started life as street chassis and would maintain much more in common with the street car it is based on, meaning this RS Cup can be street registered and driven on the street without doing damage to any of the components. 

Driving Experience

An Analog driving experience is one that has become increasingly in demand due to the numbness that plagues the majority of modern vehicles, when it comes to this RS Cup the experience is anything but numb. The added rigidity and lightness that comes from being a race chassis makes for an extremely direct connection between the driver and what the chassis is actively doing, allowing for a two way conversation of what the driver wants and how the vehicle is responding to that input. Power has increased from the factory rated RS CUP 278ps to 320ps courtesy of the Rightway built circuit spec 3.8L, this power can be accessed with urgency thanks to the added response of the custom 45mm ITB set up. Sending the power to the ground is a close ratio RS G50/10 5-speed makes for an engaging experience especially when paired with the added power and response of the powertrain. Both engine and transmission feel strong, pulling hard through each gear followed by smooth direct engagement into the next, this is to be expected considering the recent documented overhaul both received.  As a whole if a raw analog experience is desired, this RS Cup will deliver. slough of suspension 

Chassis & Exterior

Finished inside and out in Guards red the exterior is much the same as it would have been in 1993 as left the factory maintaining the classic 911 look. In terms of condition the paint is genuinely good for a race car showing signs of track use such as rock chips but nothing major. To help drop some weight the front fenders and doors have been replaced with composite version, in addition a carbon kevlar hood has been fitted. Like all others that competed in the series this RS Cup left the factory as fully race prepped chassis featuring a Matter Motorsports 6 point roll cage, seam welding in high stress areas, no sound deadening, lightweight RS glass, RS door panels with crank windows and factory sunroof delete. The suspension setup includes spherical bushings, adjustable antiroll bars, RS Cup spec Bilstein coilovers that were refreshed in 2014 with custom valving and spring rates, spherical upper strut mounts with camber adjustment for the front, and RS front uprights. RS front uprights allow for a lowered ride height while still keeping proper geometry for roll center and bump steer. The most recent exterior change has been converting back to factory aero and mounting a set of 18inch 3-piece RH speedline style wheels, previous track aero and wheel set up available. One of the most important aspects to any car let alone a racer is a straight chassis, even with this RS cup competing in numerous events and series for the past 30 years that chassis has remained in excellent condition with no structural damage. 

Engine & Drivetrain 

With over 30 years of racing and motorsports activity the original engine and transmission set up got a little tired, due to this the engine and transmission received a $60k complete overhaul done by Rightway in 2020. This overhaul included bumping displacement to 3.8 liters, a custom ITB set up with 45mm throttle bodies, 935 style case dowel pin conversion, web camshafts, ARP headstuds, and ARP Rod bolts. WPC treatment was performed on many parts including the entire rotating assembly, cylinder walls, camshafts, rocker arms, and wrist pins. WPC treatment aids greatly in part life, increased ability to keep oil on the surface, and increased strength, linked below will be a video and article explaining WPC treatment. A DLC coating has also been applied to the wrist pins, and rocker shafts. Controlling fuel and ignition is a HKS F-CON ECU ran in conjunction with the factory Bosch unit, as well as a MDI Dual spark ignition system. When refreshing the transmission every component was inspected for cracks or damage, and replaced where needed. Parts replaced included 2/3/4/5 synchronizer rings, 2/3 gear sets, main shaft bearings, pinion shaft bearings, and differential side bearings. Sending power from the engine to the transmission is an ATS Carbon Twin disc clutch, with appropriate flywheel.  

Recent Service

• Complete inspection Performed at Redland Performance
• Both front wheel bearings replaced 
• New harmonic balancer/crank pulley
• Distributor cap and rotor replaced 
• Oil change Motul 300V 15w-50 
• Alignment 
• Nut and bolt check
• Track Day ready but would suggest rotors in next service
• Compression test available 

Tuning Menu

Engine

• $60k split case engine rebuild completed in 2020
• 3.8L Built by RIGHTWAY 320ps with Dyno sheet
• 62M54563
• Fully WPC treated rotating assembly
• WPC treated cylinder walls
• Wrist pin WPC treated and DLC coated
• ARP Headstuds
• ARP Rod bolts
• 935 style crankcase dowel pin conversion 
• Web camshafts WPC treated
• WPC treated RS rockerarms
• DLC coated rockershafts
• Factory RS Cup Titanium Retainers 
• Custom Individual Throttle body conversion using 45mm TBs
• Factory RS Cup headers mated to custom single exit exhaust
• MDI Dual Spark ignition system Tech 2 for Porsche
• RSR Style Oil coolers 

Drivetrain 

• $15k transmission refresh completed in 2020
  • 2/3/4/5 gear synchros 
  • 2/3 gear sets
  • Mainshaft bearings
  • Pinionshaft bearings
  • Differential side bearings
  • New seals
  • Full crack and damage inspection
• Factory RS G50/10 5-speed 
• ATS Carbon Twin Disc clutch
• Circuit spec factory LSD 

Exterior

• Guards Red 
• Composite Front fenders
• Composite Doors
• Carbon Kevlar hood with RS hood prop

Optional Aero/Race package

• 964 RSR Decklid with GT Wing 
• Paint matched front lip
• Rays Engineering TE37  
  • Front 18×8.5 +50
  • Rear 18×10 +50

Chassis & Footwork

• Factory Matter Motorsports 6 point rollcage
• Factory Adjustable Anti-roll bars
  • Front: 24mm 5-way
  • Rear: 18mm 3-way 
• RH speedline style wheels (refinished as Speedlines)
  • Front: 18×8
  • Rear: 18×9.5
• Factory Bilstein RS Cup Dampers refreshed in 2014 with custom spring rates and valving 
• 2 piece floating rotors front 
• Factory Pressure Sensitive ABS-Cut off for emergency breaking 

Interior

• Factory Porsche 964 Cup Recaro SPG
• Recaro SPG GF-UP passenger seat
• Willans 4 point 2 inch harness driver and passenger 
• MOMO MOD. 07 350mm
• Works Bell Rapfix II quick release
• GT Shift Knob Soft Urethane 

SERIOUS INQUIRIES CALL/TEXT DANNY @ (786) 291-3622 

• More photos and information available upon request.
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• Can Ship (Insured) Anywhere Worldwide if Needed. 
• Located in Miami, Florida 33126
• Financing Available with Approved Credit
• Trades Always Welcomed (UP or DOWN)