1987 PORSCHE 928 S4 TRACK CAR - $59,500

Listed By fastkarz2
1987 PORSCHE 928 S4 TRACK CAR  for Sale $59,500
Private Seller - fastkarz2
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Ad Number184109767



Here is a rare opportunity to purchase a very well sorted track car that is an absolute monster on the race track, yet extremely reliable. The car has been extensively upgraded using only the best parts available without concern for the costs incurred. A Pro Charger D-1SC supercharger as well as many other engine modifications have been added producing approximately 600 gross horsepower and over 500 horsepower at the rear wheels in a car that has been weight reduced to just 3,000 pounds. The resultant acceleration and top speed are awesome. But it’s not just the engine that has been upgraded; significant modifications without regard to cost have been made to the body, chassis, suspension, steering, brakes, electrical interior, wheels and tires. The end result is an extremely fast, safe and reliable track car capable of extremely low lap times capped off with a state of the art data gathering system to help you analyze your every movement on the track. This car is located in Troy, MI and can be purchased complete for $59,500. Two binders detailing the upgrades and including receipts are included. Also, a video of the car at speed at Waterford hills Raceway is available upon request. But wait….. there’s more. Concerned about parts availability? Two 1989 928 parts cars, one complete and one a roller can be purchased along with the track car for an additional $15,000
Attached is a detailed description of all the upgrades for the track car:
Fully sorted PORSCHE 928 TRACK CAR• 1987 Porsche 928 S4, used on HPDE and OTD, sold by bill of sale, VIN#WPOJB0922HS861215
• Meticulously built, well sorted and obsessively maintained over the last 4 years
• Fast, reliable performer (1:15.20 best lap time at Waterford Hills on Sep 12, 2020)
• SUPERCHARGED, 15 psi max boost, original 5.0 liter Porsche V-8, estimated to be 500+ WHP
• Electromotive Tec-3 ECU, Panasonic Toughbook laptop programmer/data logger included, dual electronic ignition
• 2-Kirkey Racing Seats, Lifeline fire system, RJS 5-point harness, Roadkeeper video and track data logger
• Numerous engine, suspension, body and other track performance upgrades
• Timing Belt, Belts & Water Pump replaced in Apr 2020, 15 hours total time since the change out

• Pro Charger D-1SC custom mounted centrifugal supercharger, with K&N air filter fitted with water sleeve, silicon hosing aluminum tubing fresh air induction mounted behind L/H headlight , custom Mishimoto high efficiency air to air intercooler, thermal wrap on air induction components, G-Reddy modulated blowoff valve with a secondary redundant full flow by-pass valve, 15 psi max boost
• Custom fabricated 3” dual stainless steel exhaust with performance x-pipe and dual “magnaflow”mufflers, with a single “pipes” muffler with internal x-pipe, prove bolt on Waterford pipe is included
• Electromotive “Tec 3” dual ignition electronic control system and ECU unit, fully optimized with a race tune setup for track use, with “Tec 3” tuning program software and real time data logging, controlled and recorded on a removable Panasonic Toughbook mounted to passenger floorboard with docking station
• Clewitt Engineering ignition wires
• Upsized 42 lb Bosch fuel injectors, adjustable engine rev limiter is set to 5700 RPM, Engine redline is 6200 RPM
• Custom cooling system with a full aluminum racing radiator, high flow volume thermostatically controlled electric radiator fan, 2 water pumps; the PORSCHE belt driven mechanical water pump as originally fitted PLUS a secondary electric driven centrifugal water pump that supplies flow through 2 custom fabricated engine coolant radiators mounted in each front wing, all silicon hosing and aluminum tubing
• Precision Motorwerks windage and crank scraper system
• 3 quart accu-sump engine oil supplement system for low oil pressure conditions with automatic valve deployment set below 28 psi, accumulator bleeder valve hose plumbed below to undercarriage
• Modified oil pan with 928 Motorsports extended capacity, with an internal cloverleaf baffle design and special oil inlet suction tube system, total engine oil capacity is 12-3/4 quarts
• Custom mounted supplemental Porsche GT2 engine single pass oil cooler
• Custom built extra length insulated inlet and return fuel delivery hoses by Precision Motorwerks
• Solid aluminum billet engine mounts by 928 Motorsports
• Engine coolant quick drain valve on engine block
• Crankcase vent catch cans with filtered vents, easy access drain hoses at undercarriage
• Magnetic drain plug on engine oil sump
• Porken timing belt tensioner

• Heavy Duty Carbon Fiber Racing Clutch rated for 600 ft.lbs, racing clutch hose assembly
• Rebuilt 5 speed manual transmission by COGS-COGS (2019), magnetic drain plug
• Rebuilt 8 plate LSD (2020)
• Custom designed and fabricated transaxle oil cooler with electric pump for oil circulation, dual electric fans and aluminum oil cooler, external pressure and temperature gauges, 5 quart transaxle capacity
• Rebuilt half shafts with new boots
Body, Chassis, Suspension, Steering & Brakes
• Bilstein adjustable coil overs on 4 corners, front springs 950 lbs., rear springs 600 lbs.
• Fully adjustable sway bar links by 928 Motorsports, both front and rear
• Rebuilt steering rack with solid aluminum mounting bushings by 928 Motorsports
• Custom 3 piece frame cross member by 928 Motorsports that allows for quick oil pan removal
• Stainless steel brake flex lines by Precision Motorwerks
• All 4 stock calipers fully rebuilt with new pistons and seals, powder coated red (2019)
• Trimmed fender wells with bolt on fender flares for clearance on wheel/tires
• Louvers for air exit on upper surface of both front wings
• Embedded wing mount radiators with flow thru front of wing wheel wells
• Stainless steel wire grating on all air inlet and outlets
• Custom designed and fabricated steel scraper protection wear plates that protect critical undercarriage/engine from front end damage
• Custom designed and fabricated mesh screen skid plate to prevent track debris from entering engine bay fouling belts
• Hood louvers for oil cooler fresh air inlet and engine hot air outlet
• Front splitter for cooling, front end downforce and undercar airflow

• Mechanically adjustable rear wing for downforce
• Sunroof deleted and replaced with aluminum, riveted blank
• Single drivers side windshield wiper
• Lexan rear window
• Pinned hood locks and rear hatch lock
• Dual element carbon fiber rear wing
• Optima yellow top deep cycle battery (2019)
• 90 Amp lightweight alternator (2019)
• Lightweight starter (2018)
• Emergency electrical master switch “On-Off”
• Permanently mounted battery tender
• Plug ins for GoPro, Roadkeeper, cell phone, Toughbook
• Brake lights only
• Interior completely stripped, lightened and painted black
• Full welded in roll cage
• Roadkeeper 2 camera video logging and data logging system
• Short throw solid ball mount shifter linkage
• MOMO removable steering wheel with hanger hook on passenger side
• Gauges in cockpit for supercharger boost, engine block coolant temperature (Evans waterless), engine coolant temp into radiator, engine coolant temp on return side to engine, engine oil temperature in the sump, engine oil pressure, air/fuel ratio, fuel pressure, hour-meter zero at last timing belt/water pump changeout, tach n/s, Lenova tablet for speed readout and logging, light for accusump deployment
• Lifeline fire suppression (current)
• Kirkey racing seats for both driver and passenger
• RJS 5 point racing safety harness for both driver and passenger (current)
• Easily removable, pinned lexan door panel windows for driver and passenger
• Slim profile drivers and passenger door racing mirrors
• NACA pinned in ventilation ducts on driver and passenger side
• NACA ventilation duct in driver’s door
Wheels & Tires
• Fitted with extra long wheel studs at 4 corners
• 3 piece aluminum racing wheels – Front 18” x 11”, Rear 18” x 12”, media blasted and resealed 2019
• Tires – Racing slicks
o Front maximum size 320-650/18
o Rear maximum size 335-710/18
• Hubcentric wheel spacers – H&R 25 mm on all 4 corners
• Bosch 44 Motorsports fuel pump
• Car weighs in at less than 3000 lbs.
• Yellow on body is a wrap, base color of car is blue

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