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Porsche 911 Turbo Flachbau

Porsche 911 Turbo Flachbau

Coupé, 1987

Highlights

  • Factory-delivered Slantnose 930 M505
  • Increased displacement to 3.6 liters from 3.3
  • Sunroof / drip-rail delete.

M505 – 3.6L Turbo – G50. Zweck is pleased to present a genuine, factory-delivered slantnose 930 that appears nearly unmodified from the outside. But underneath is an extreme, yet tractable, performer, hiding incredibly developed underpinnings by Dick Elverud. Highlights include: increased displacement to 3.6 liters from 3.3 using numbers-matching original case; G50 5-speed conversion with rebuild and re-gear to close ratios; front and rear suspension converted to Bilstein coilovers; and sunroof / drip-rail delete. Many upgrades have been performed to match as a complete package, and a full specification sheet is available below in the “The vehicle in detail” section.

Built by who is widely regarded in his era as one of the best 935 engine builders and IMSA race mechanics, this slant performs better than any other CIS 930 we’ve encountered and with the short-geared G50, feels more comparable to a modified GT2. Docile and well-mannered when driving around town, this 930’s coilover setup is surprisingly comfortable and compliant. The steering is tight and the upgraded Brembo brakes work phenomenally.

The exterior features a DP front lower valence, and at the same time as the work completed on the roof and drip rails, the car was refinished in its original shade of Guards Red, which presents beautifully. With only 21 thousand miles, the interior shows extremely well and includes factory sport seats, a modern Blaupunkt Bremen SQR46 Bluetooth head unit (with period aesthetics), Momo Prototipo steering wheel/hub (original wheel included as well), and functioning AC.

This modified M505 930 comes with COA, books/manuals, compressor, spare, and records dating back to 1987–including invoices from Andial.

Price: USD 199,930

United States

ZWECK
12910 SW 89 Ct
33176 Miami
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The vehicle in detail

ENGINE
– Last rebuilt in 2015 by Dick Elverud, famous 935 and IMSA engine builder
– Displacement increased to 3.6l, built on original numbers-matching 3.3 case
– 3.6l crankshaft (cross-drilled f or oiling)
– JE 100mm piston set f or turbo engine
– Porsche 100mm cylinders
– Case machined for 100mm cylinders
– Clearanced engine case & oil pump
– Balanced crank, rods, & clutch assembly
– K27 Turbo
– Twin plug head conversion
– Cams reground t o 964 profile
– Extrude-honed heads & intake
– Raceware connecting rod bolts, case studs, head nuts, and billet washers
– Titanium spring retainers
– Garretson longneck intercooler
– Powerhaus stainless exhaust system
– HI-6 CD boxes (2)
– MSD Blaster coils (2)
– Front oil cooler

TRANSMISSION
– 5 speed G50/50 short bellhousing transmission conversion
– Purchased from Patrick Motorsports
– Rebuilt with close ratios / shorter gears
– Limited slip differential, modified for increased lockup
– Larger ring & pinion
– WEVO G50 short shifter

SUSPENSION & BRAKES
– 23mm front and 30mm rear torsion bars
– Bilstein coilover conversion with Eibach springs
– Upgraded sway bars F/R (front is “through-body”)
– Brembo GT front big brake kit
– Stainless steel braided brake lines
– Brake ducts

EXTERIOR & INTERIOR
– Sunroof deleted
– Rain gutters / drip rails shaved
– DP front valence
– 993 aero mirrors
– 993 door handles and gaskets
– Factory Sport Seats
– Momo Prototipo steering wheel and hub (factory included)
– Blaupunkt Bremen SQR46 Bluetooth head unit

Specifications

Year of construction: 1987
Model: 911 Turbo Flachbau
Body: Coupé
Series: 930
Mileage: 21977 mi
Cylinder capacity: 3,6 Liter
Steering: left
Transmission: Manual
Drive: Rear drive
Fuel: Gasoline
Configuration: Air conditioning
Interior color: Black
Interior material: Leather
Exterior color: Red
Manufacturer color code (exterior): Indischrot/Guards L80K
New / used: Used car
Ready to drive: yes

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Porsche 911 Turbo Flachbau

Price: USD 199,930

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