Porsche 911 Backdate

Porsche 911 Backdate

Coupé, 1990


  • ST conversion 3.8
  • Special color Aston Martin Ultra Marine Black Pearl Metallic
  • special leather!

Porsche 911 (964) conversion to the 911 ST from the years 1970/1971 based on a Porsche 964 (was converted and fully restored in Germany).
EZ: 01.07.90, 3.8 ccm, approx. 235 KW / 320 PS, 750 km since the restoration or conversion, 5-speed manual transmission, special color Aston Martin Ultra Marine Black Pearl Met., special leather and leather interior Bentley Saddle including trunk.
Fantastic 911 ST backdate model with historic registration!

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The vehicle in detail

Vehicle configuration/restoration:
Exterior: vehicle dismantling down to body shell
Vehicle ice blasted
F-model latch
ST Steel front and rear fenders
Hoods F-model steel
Fully hand painted in Aston Martin Blue Met.
Underbody tunnel panel painted in body color
F model indicators Metal inserts, front and rear
F-model rear window new
Front window F model new
Window frame chrome
Trim strips outside chrome
Headlights H-4 chrome
Chrome horn grille
Aluminium polished rear grill

Lettering 911 gold high gloss
lettering ST gold high gloss
PORSCHE lettering in high-gloss gold
Stainless steel door sills with "ST" lettering
Outer sill paneling in plastic with aluminum cover painted in body colour, accompanying aluminum profiles, black rubber, "ST" lettering
Mirrors on the right and left like Carrera RS
Chrome rear horns
Heat protection in front of the rear silencer in sheet steel
Front air intakes chrome
Chrome wiper arms
Windscreen washer nozzles chrome
Bumpers front and rear aluminum – chrome profile
Chrome door handles
Sliding roof kinematics overhauled
Trims and wind deflectors on the sunroof in chrome
Radiator encapsulation by aluminum sheets (smooth underbody)
Protective strip under front spoiler
Engine mounts new
Screws, bolts, nuts cleaned, stripped of paint, glass beads blasted, checked and re-galvanised
Wheel hubs, anchor plates, etc. galvanized and newly powder-coated
Chassis/brakes: conversion to Bielstein spring chassis with adjustable main and auxiliary springs
Trailing arm overhauled with new bearings (rear axle)
New swords with reinforced bearings (rear axle)
Reconditioned wishbones with reinforced bearings (front axle)
New tie rods
Stabilizer bearings new
Domlager new
Steering gear overhauled
New ball heads (front axle)
Turbo brake system, new brake discs, brake lines and brake calipers
Drive shafts overhauled with new bearings
Engine: Fully rebuilt 3.8 liter 320hp sports engine with 3.8 RSR pistons and cylinders
Cylinder heads from the 964 RSR with larger intake and exhaust valves, modified camshaft and control times, conversion of the injection to single throttle injection
Two-pipe exhaust system Manifold made entirely of stainless steel. Stainless steel silencer 2 x 100 cell catalytic converter (original was 1 x 60 cell cat)
New programming of ECM
Muffler with stainless steel outlets
Control flaps for heating outdated
Engine panels repainted
Ignition distributor obsolete
Alternator overhauled
Control unit reprogrammed
idle actuators etc. obsolete
Power approx. 320 hp
Gearbox 5 – gear (switch) overhauled
Interior: "Recaro Classic" seats in leather Bentley Saddle, ST logo embossed headrest, center seat panel in matching houndstooth fabric, rear seat cushions in houndstooth fabric, backrests in houndstooth/leather combination, black Bentley leather dashboard, Bentley leather saddle side parts, leather recessed grips Bentley black, leather Bentley Saddle trim strips, leather Bentley Saddle parcel shelf
Garmet strips below aluminum profile
Dashboard center section with aluminum profile, leather Bentley Saddle in the center, "PORSCHE" lettering on the right above the glove compartment lid
Steering column cover, ABS cover, tank cover, fuse box, rear blower cover, rear fuse box, shelf and switch painted in body colour.
Tank steel strap in chrome
Boot mat and engine mat quilted to match the leather Bentley Saddle
Rug "ST" grey
Instruments obsolete, digits in historical green
Turned aluminum switch and handbrake lever
Handbrake lever bag and shifter bag leather Bentley Saddle
Door pockets like F model
Close handle and armrest in black Bentley leather
Interior mirror chrome
Cream white headlining
Sun visors black and white
Reduction of wind noise on the window frame thanks to a special rubber profile
seals new
Radio Classic Becker with I-Pod connection
2 x round loudspeakers each with chrome covers in rear shelf and door
Climate control unit overhauled
Fan unit obsolete
Oil cooler overhauled
Air conditioner outdated
Oil lines and fuel lines new
Oil thermostat overhauled new

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Year of construction: 1990
Initial registration date: July 1990
Model: 911 Backdate
Body: Coupé
Series: 911 Backdate/Modified
Mileage: 750 km
Power: 320 HP
Cylinder capacity: 3,8 Liter
Steering: left
Transmission: Manual
Drive: Rear drive
Fuel: Gasoline
Interior color: Brown
Interior material: Fabric/Leather combination
Exterior color: Blue
Manufacturer color code (exterior): Aston Martin Ultra Marine Black Pearl Metallic
Paint-to-Sample (PTS): yes
Condition: Fully restored
New / used: Used car
Ready to drive: yes
Car location: DEGermany

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