Vehicle Details

• Year: 1980
• Make: Porsche
• Model: 911SC Modified
• VIN: 91A0142087
• Mileage Shown: 107,845
• Transmission: Manual
• Title Status: Clean
• Color: GTS Red
• Seller Type: Private Party
• Location: Canton, MA 02021
• Lot #: V-0049067

This 1980 Porsche 911SC Coupe was purchased by the seller in 2005 and subsequently underwent a custom turbocharged 3.3-liter engine build. The exterior has been refinished in Porsche GTS Red paint and modified with Turbo-style fender flares, IROC-style bumpers, a ducktail rear spoiler, and wide staggered-diameter Fuchs-style wheels. The cabin has also been fitted with new carpeting, leather Sport Seats, and a three-spoke MOMO steering wheel. Boasting a claimed output of approximately 280 HP at 12psi of boost, this turbocharged 3.3L-powered 911SC Coupe is now being offered for auction by its longtime owner out of Massachusetts.

This 911SC was refinished in GTS Red, a rare modern Porsche color that is currently offered as a Paint to Sample option. The exterior has been modified with Turbo-style fender flares, a fiberglass ducktail rear spoiler, and fiberglass IROC-style bumpers. Other details include front bumper “PORSCHE” lettering, Carrera script side stripes, a “Carrera RS-T” rear designation, a sunroof, yellow-finished brake calipers, and a black turndown exhaust tip. The car rides on Fuchs-style wheels measuring 16”x9” in front and 11”x17” in the rear, dressed in Kumho Ecsta tires sized 225/50 and 285/40 respectively. The seller indicates the paintwork was completed about 2 years ago and the exterior remains in very good overall condition.

The interior features replacement black carpeting and power-adjustable Sport Seats sourced from a later model 911 and reupholstered in black leather. Other accessories include a leather-wrapped three-spoke MOMO steering wheel, power windows, an under-dash boost gauge, and a Turbo-logo radio delete cover. The air conditioning compressor has been removed, the power-adjustable side mirrors have been disconnected, and the dashboard clock is inoperable.

The flat-six engine has been rebuilt to a 3.3-liter displacement and includes a Carrera 3.2 crankshaft, a turbocharger, an intercooler, a blowoff valve, electronic fuel injection and ignition systems, a custom exhaust, and an aftermarket engine management system. A claimed dyno-tested output of approximately 280 HP is sent to the rear wheels through a rebuilt 5-speed Type 915 manual transaxle. The seller notes the suspension has been lowered by 1” from the stock ride height. A spare engine management computer is included in the sale, and leak-down and compression test results are provided below.

• Cylinder #1: 131 psi, 9%,
• Cylinder #2: 120 psi, 9%
• Cylinder #3: 131 psi, 7%
• Cylinder #4: 120 psi, 8%
• Cylinder #5: 125 psi, 8%
• Cylinder #6: 126 psi, 8%

This sale will include a toolkit, a spare tire, a spare engine management computer, and a clean title.

The seller would like you to know: “Thank you for visiting my auction. I have owned the car for 19 years, garage-kept. I modified it from a standard 1980 911 SC and turned it into a 1974 Porsche 911 3.3 Turbo IROC tribute. It has taught me all about electronic fuel injection & ignition, and how to design turbocharger systems. It was recently dyno-tuned, but before we could perform a final power run, we broke the dyno. Power is 280-290 hp with a conservative 12 psi boost, I just don't have the chart to prove it!”

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Seller: MikeyB 

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