1978 Porsche 911 SC Targa

Nov 21, 1985inspection119,916 mi

PPI shows strong engine, fix list

John G. Dayton performed a pre-buyer's check, including a compression and safety inspection. The engine showed strong compression across all cylinders (180-185 PSI), but the inspection noted worn brake pads, bad sway bar bushings, a missing EGR valve, and hot/cold running issues.

JOHN G. DAYTON ENTERPRISES PORSCHE CARE, Signal Hill, CA
$126.00
Jul 12, 2001repair

New fuel inductor by Jax European

Jax European Car Service replaced the fuel inductor. This addressed a fuel delivery issue.

Jax European Car Service Inc., Los Alamitos, CA
$20.43
Jul 23, 2001repair108,391 mi

Engine miss diagnosed, new ignition parts

An intermittent engine miss prompted new spark plugs and a coil wire from Jax European.

Jax European Car Service, Los Alamitos, CA
$168.23
Oct 16, 2001maintenance107,950 mi

Spark plugs and wires replaced

New spark plugs and ignition wires installed at Jax European Car Service.

Jax European Car Service, Los Alamitos, CA
$520.76
Feb 22, 2002maintenance109,458 mi

Lube service, 110-mile drive for stall

Jax European changed the oil and air filter. A technician test drove the car 110 miles, failing to duplicate an intermittent stalling issue.

Jax European Car Service Inc., Los Alamitos, CA
$87.77
Apr 24, 2002repair109,783 mi

New ignition control unit stops stalling

Vehicle stalled after 15-20 miles of driving. Jax European installed a new ignition control unit and coil.

Jax European Car Service Inc., Los Alamitos, CA
$640.69
May 22, 2002other110,333 mi

Car at Jax European Service

The car was at Jax European Car Service Inc. on this date and mileage. This record does not list any labor or parts.

Jax European Car Service Inc., Los Alamitos, CA 90720
$150.00
Jun 26, 2002repair110,843 mi

Warranty diagnosis, owner declined tie-rods

European Car Service diagnosed a warranty claim. Owner declined their recommended tie-rod replacement, and the service was free.

European Car Service Inc. Jax, Los Alamitos, CA
$374.93
Jun 26, 2002maintenance110,843 mi

New Dunlop front tires installed

Jax European Car Service installed and balanced new Dunlop SP 8000 front tires. Owner declined tie-rod end replacement.

JAX EUROPEAN CAR SERVICE INC., Los Alamitos, CA
$355.30
Dec 5, 2002repair113,041 mi

Diagnosed engine stalling, oil and filter

Jax European diagnosed an engine stalling issue, replacing old fuses and cleaning electrical contacts. They changed the oil and filter, but could not replicate the reported stall.

Jax European Car Service Inc., Los Alamitos, CA
$131.45
Dec 5, 2002maintenance113,068 mi

Shop visit, no service details

Car was at European Car Service Inc. No labor or parts listed on this record.

EUROPEAN CAR SERVICE INC. JAX, Los Alamitos, CA 90720
$133.89
Dec 12, 2002repair113,085 mi

Oil fouled plugs, vacuum hose repaired

Jax European replaced oil-fouled spark plugs and repaired a leaking vacuum hose after a road test.

Jax European Car Service Inc., Los Alamitos, CA 90720
$243.86
Jan 13, 2003repair113,156 mi

Starting issue diagnosis, battery replacement at no charge

European Car Service diagnosed a starting system complaint. A new battery was installed at no charge, but the original issue was not duplicated during testing.

EUROPEAN CAR SERVICE INC., Los Alamitos, CA
$187.40
Feb 13, 2003inspection113,382 mi

California emissions test at Anaheim

Anaheim Test Only Center performed a California emissions test.

Anaheim Test Only Center, Anaheim, CA
Feb 13, 2003inspection113,377 mi

Vehicle intake at Jax European

Jax European documented the car. No labor or parts are listed.

Jax European Car Service Inc., Los Alamitos, CA
$75.00
May 9, 2003ownership114,158 mi

JAX recorded VIN, no services

JAX European Car Service logged the vehicle's VIN and mileage into their system. No parts or labor appear on this invoice.

JAX EUROPEAN CAR SERVICE INC., LOS ALAMITOS, CA 90720
$142.86
Oct 1, 2003repair114,840 mi

Towed non-start, ignition and leaks fixed

Car towed in for a non-start condition. Shop replaced the ignition coil, control unit, pick-up coil, and addressed engine oil leaks with new return tubes and switches.

Jax European & Asian Car Service, Los Alamitos, CA
$1,387.52
Nov 14, 2003repair115,068 mi

New coil, engine leaks diagnosed

Jax European & Asian Car Service installed a pre-paid ignition coil. Technicians diagnosed significant engine leaks from the right side timing chain cover and front camshaft seal.

Jax European & Asian Car Service, Los Alamitos, CA 90720
Dec 29, 2003repair115,372 mi

Left axle and final drive replaced

Car towed with no drive after a snapping noise. Shop replaced the left axle and final drive.

Jax European & Asian Car Service, Los Alamitos, CA 90720
$349.09
Jun 10, 2004repair116,488 mi

No-start ignition repair, major leak diagnosed

Ignition connections cleaned and timing reset to fix a no-start condition. An oil leak was diagnosed, requiring a $4500 engine reseal; oil and filter changed.

INDEPENDENT CAR SPECIALISTS INC., LOS ALAMITOS, CA 90720
$227.21
Jun 10, 2004ownership

Shop intake, no labor recorded

Independent Car Specialists Inc. recorded a shop visit. No labor or parts are itemized.

INDEPENDENT CAR SPECIALISTS INC., LOS ALAMITOS, CA 90720
$227.21
Jun 25, 2004repair116,488 mi

No start diagnosis, new fuel pump relay

Car towed for no-start; shop replaced the fuel pump relay. They checked fuel pressure, timing, and adjusted the fuel pressure regulator.

INDEPENDENT CAR SPECIALISTS INC., Los Alamitos, CA
$202.33
Jan 12, 2005repair117,197 mi

Oil leak fixed, engine needs tune

John G. Dayton Enterprises repaired an oil leak at the oil pressure sender adapter. The shop noted an engine miss and advised a tune-up.

JOHN G. DAYTON ENTERPRISES, Signal Hill, CA
$126.00
Apr 16, 2005repair117,804 mi

Corrected fan wiring, new engine mounts

A rebuilt fan control box and new engine mounts went in. The shop corrected reversed wiring in the fan control harness.

JOHN G. DAYTON ENTERPRISES, SIGNAL HILL, CA 90806
$678.59
Jun 1, 2005repair118,622 mi

No-start fix, goodwill carpet repair

Car towed in no-start; replaced fuel pump fuse. Shop restored left footwell carpet under goodwill.

JOHN G. DAYTON ENTERPRISES, SIGNAL HILL, CA
Mar 7, 2006purchase

Pelican parts: fan, pop-off valve

Owner purchased a new 11-blade cooling fan, fuel filter, and CIS pop-off valve from Pelican Parts.

Pelican Parts, El Segundo, CA
$118.21
Mar 16, 2006purchase

Pelican parts for routine maintenance

Pelican Parts order included a new fuel filter, air pump filter, cooling fan, master cylinder cap, and door lock surround.

Pelican Parts
$102.50
Mar 16, 2006purchase

Parts returned to Pelican

Owner returned parts to Pelican Parts Inc. for a refund.

Pelican Parts Inc.
$-325.56
Mar 16, 2006purchase

Pelican Parts order shipped to California

Pelican Parts shipped a $443.77 order to Jack Pierce in Canyon Lake, California.

Pelican Parts.com
$118.21
Jun 28, 2006purchase

Fuel filter from Pelican Parts

Owner acquired a new fuel filter from Pelican Parts. No labor recorded.

PELICAN PARTS, EL SEGUNDO, CA
Aug 9, 2006modification

Weltmeister short shift kit and tune-up

Weltmeister short shift kit installed. Pelican Parts supplied fluids, spark plugs, valve cover gaskets, and a magnetic drain plug for a full service.

Pelican Parts, El Segundo, CA
$290.00
Sep 21, 2006purchase

Oil return tube kit purchased

Pelican Parts supplied an oil return tube kit and washer reservoir cap.

PELICAN PARTS, El Segundo, CA
Oct 18, 2006purchase

New heater hoses purchased from Pelican

Pelican Parts supplied multiple heater hoses for the engine and heat exchangers.

Pelican Parts, El Segundo, CA
$46.82
Nov 14, 2006purchase

Valve cover gasket kit from Pelican

Valve cover gasket kit acquired from Pelican Parts. No installation labor recorded.

Pelican Parts, El Segundo, CA
$25.71
Mar 15, 2007repair

New rear engine lid shock

Pelican Parts supplied a replacement rear engine lid shock.

Pelican Parts, El Segundo, CA
$15.97
Jun 5, 2007purchase

Pelican Parts badge mounting clips

Ordered OEM speednuts/clips from Pelican Parts for exterior lettering.

Pelican Parts, El Segundo, CA
$6.77
Jul 6, 2007purchase

Custom flannel car cover purchased

Owner purchased a custom 100% cotton flannel car cover from MPT Industries.

MPT Industries, Dover, NJ
$155.00
Jan 31, 2008purchase

Genuine Porsche EGR system parts order

Pelican Parts supplied a new genuine Porsche EGR valve, pipeline, gaskets, and related hardware.

Pelican Parts
May 25, 2011repair128,307 mi

Hard shifting diagnosis, stock shifter

European Motorsports diagnosed hard shifting in 2nd and 4th gear, noting a worn 1st gear synchro, and installed a used stock shifter in place of an aftermarket unit. The engine received a valve adjustment, new valve cover gaskets, and new oil return tubes.

EUROPEAN MOTORSPORTS, Vista, CA
$888.45
Jun 13, 2013purchase

Pelican Parts window channel acquired

New window channel acquired from Pelican Parts.

PELICAN PARTS, Harbor City, CA
Feb 25, 2014purchase

911 door stay and Hirschmann antenna acquired

Pelican Parts supplied a Hirschmann universal antenna and a 911/912 door stay reinforcement kit.

Pelican Parts, Harbor City, CA
$53.72
May 14, 2014purchase

Custom hose ends for unknown project

Hose-Man supplied custom hose ends. No labor logged, likely for a future modification or repair.

HOSE-MAN, Inc., Irwindale, California
$45.03
Oct 1, 2015purchase

Oil system upgrade, brake bleeder valves

Rothsport oil inlet check valve, speed bleeder valves, oil line, and filter were acquired from Pelican Parts. A new temperature sending unit and heater control knob also purchased.

Pelican Parts, Harbor City, CA
$474.66
Dec 4, 2015purchase

Oil thermostat gasket acquired

Porsche Parts Electronic Catalogue page lists part 930.106.326.01. This is an oil thermostat housing gasket, acquired for future use.

PORSCHE
$131.33
Dec 10, 2015repair132,874 mi

Engine diagnosed with severe left bank leakdown

Black Forest Automotive diagnosed engine popping, finding severe cylinder leakdown on the left bank (cylinders 1-3) due to piston/cylinder/ring wear. They re-torqued seized head nuts, adjusted valves, and replaced mismatched spark plugs.

BLACK FOREST AUTOMOTIVE, INC., San Diego, CA
$2,199.75
May 7, 2018purchase

Brake master cylinder grommet from Pelican

Pelican Parts supplied an Ate brake master cylinder reservoir grommet.

Pelican Parts, Harbor City, CA
$12.12
Feb 13, 2019purchase

New custom flannel Targa cover

Custom 100% cotton flannel car cover purchased for the Targa from MPT Industries.

MPT Industries, Dover, NJ
$213.00
Jan 21, 2020repair

Auxiliary air valve rebuilt by FIC

FIC rebuilt the auxiliary air valve.

FIC
$175.00
Jan 21, 2020repair

Erratic high idle regulator replaced

Fuel Injection Corp fixed an erratic high idle at 1800 RPM. A new auxiliary air regulator went in.

Fuel Injection Corp, Tracy, CA
Jan 24, 2020purchase

Fuel filter, oil service parts acquired

Pelican Parts supplied a fuel filter and engine sump sealing ring.

Pelican Parts, Harbor City, CA 90710
$47.31
Jan 27, 2020inspection

Auxiliary air valve tested good

FIC tested the auxiliary air valve. No replacement required.

FIC, Tracy, CA
$14.00
Jan 28, 2020purchase

Acquired replacement transmission credit from Pelican

Pelican Parts provided a credit for a replacement transmission. The owner also purchased an oil sump plug sealing ring.

Pelican Parts, Harbor City, CA
Feb 7, 2020purchase

Pelican Parts ships genuine rubber hose

Pelican Parts shipped a genuine Porsche rubber hose for $41.33. Handwritten calculations on the invoice suggest the owner planned a DIY installation.

Pelican Parts, Harbor City, CA
$41.33
Aug 5, 2020purchase

MSD Blaster ignition coil purchased

Owner purchased an MSD Blaster High Vibration Coil from Pelican Parts.

Pelican Parts, Harbor City, CA
$83.19
Nov 10, 2020purchase

MSD 6A ignition and Clewett wires

Owner acquired an MSD Digital 6A ignition control, tach adapter, Clewett performance spark plug wires, rotor, and cap from Pelican Parts. This is a serious performance upgrade.

Pelican Parts, Harbor City, CA
$521.87
May 10, 2021cosmetic

Door panel installation, wiper replacement

Automotive Techniques installed customer-supplied door panels, lubed the window regulators, and replaced the wiper blades and caps.

AUTOMOTIVE TECHNIQUES, Novi, MI
Jul 28, 2021ownership

Shop visit, no work recorded

Automotive Techniques logged the vehicle on this date. No labor or parts were noted for the entry.

Automotive Techniques, Novi, MI
$6,071.59
Sep 9, 2021sold

Sold on Bring a Trailer for $50,000 to @bhorrocks

Listed as "Prior BaT auction (September 9, 2021)".

$50,000.00
Sep 20, 2021maintenance45,000 mi

New Michelin Pilot Sport A/S 4 tires

Belle Tire installed four Michelin Pilot Sport A/S 4 tires, including mounting and balancing.

Belle Tire Grosse Pointe Farms, Grosse Pointe Farms, MI
$897.88
Oct 2, 2021repair

Superfly Garage: Suspension, brakes, seals estimate

Estimate from Superfly Garage for Lemforder ball joints, front caliper rebuilds, all new exterior seals, interior refresh, and a Momo Heritage steering wheel.

Superfly Garage LLC, Dexter, MI
$4,599.02
Jan 31, 2022purchase

New steering wheel, interior trim sourced

An Amazon steering wheel, eBay carpet, and rear deck fabric were acquired. Pelican Parts supplied glass and front bumper trim. This ledger also lists Auto Atlanta parts and several returns.

Aug 25, 2025modification

Rennline door panel install

New Rennline door panels fitted to the interior.

Rennline
$290.24
Sep 11, 2025sold

Sold on Bring a Trailer for $115,000

Listed as "1978 Porsche 911SC Targa Twin-Plug 3.4L". Lot #209585.

$115,000.00
Nov 30, 2025inspection

Head stud, leak, and alternator check

Black Forest Automotive inspected for head stud failure, oil leaks, vacuum leaks, and alternator bearing health. This is a critical check for air-cooled engines.

BLACK FOREST AUTOMOTIVE, INC., San Diego, CA
$372.00
Undatedrepair

Rear panel, deck lid repaired and refinished

Terry's Custom Painting repaired and refinished the rear panel, deck lid, and right rear upper panel.

TERRY'S CUSTOM PAINTING, DIAMOND BAR, CA 91765
$897.50
1978G-body · targa9118211150

Exterior

10 documented5 to spec2 modified
  • Paint

    Paint

    respray (same color)

    Delivered in Black. It wears Fern Green today after a documented October 2021 full respray, with recent panel refinishing.

  • Headlights

    H4 headlight

    replaced

    Left the factory with sealed beam headlights in sugar-scoop trim rings, standard for US cars of the era. Now fitted with H4 headlights.

  • Badging

    Silver 911 SC script

    factory

    Delivered with silver 911 SC engine-lid script; it currently displays the same factory badging.

  • Trim & moldings

    Bright anodized

    factory

    Delivered with bright anodized window and body trim; it retains this finish, confirmed by photo.

  • Side mirrors

    Body-color flag mirror

    replaced

    Delivered with optional dual side mirrors. Original equipment replaced with body-color flag mirrors, a distinctive later-era style.

  • Antenna placement

    Right fender mast antenna

    factory

    Original antenna placement offered left fender (manual) or optional right fender (power), with this car's factory configuration undocumented. A right fender mast antenna is currently fitted.

  • Wheels

    Fuchs 16-inch

    factory

    Delivered with optional 16-inch Fuchs alloys (6-inch front, 7-inch rear), a collector-preferred specification. Retains this factory equipment.

  • Tires

    Michelin Pilot Sport All Season 4

    replaced

    When new, it left the factory fitted with period-correct radial tires. It now rides on Michelin Pilot Sport All Season 4 tires.

  • Rear spoiler

    stock

    factory

    Delivered with a smooth deck lid; an optional fully rubberized rear spoiler was also available. It retains this factory specification.

  • Rear taillights

    All-red taillights

    factory

    Delivered with all-red taillights, standard for cars delivered to the US. Replacement lenses are US-market all-red.

5 undocumentedshow fields
  • Targa bar
  • Targa top
  • Front bumper
  • Fog lights
  • Rear bumper

Interior

8 documented1 to spec2 modified
  • Steering wheel

    MOMO California

    replaced

    A four-spoke plastic wheel was standard, with a three-spoke optional; this car's factory configuration isn't documented. It now runs a MOMO California three-spoke wheel.

  • Gauges

    VDO 5-gauge cluster

    factory

    Delivered with the VDO five-gauge instrument cluster, standard for the era. It retains the factory cluster, now with an upgraded late-style temperature sending unit.

  • Dash vents

    small

    factory

    Smaller rectangular dash vents were standard for the era, consistent with cars through 1985. This car retains its original set.

  • Shift knob

    Wood and metal knob

    replaced

    Delivered with the simple plastic shift knob standard for the era. Now fitted with a wood and metal knob, a tasteful deviation from factory.

  • Front seats

    Sport seats

    factory

    Delivered with standard full leather seats. Now fitted with Sport seats, upholstered in black leather and multicolor Houndstooth cloth.

  • Upholstery

    Black leather and multicolor Houndstooth cloth

    recovered

    Delivered with factory-standard leatherette and fabric upholstery. The cabin is now recovered in Black leather and multicolor Houndstooth cloth, a desirable period specification.

  • Door panels

    Rennline RS-style

    replaced

    Delivered with standard interior door panels. Now fitted with Rennline RS-style panels, featuring pull straps and manual window cranks.

  • Carpets

    Square-weave

    replaced

    Left the factory with standard cut-pile carpeting. Now fitted with replacement Beige square-weave carpets, a period-correct upgrade.

3 undocumentedshow fields
  • Dashboard
  • Pedals
  • Rear seats

Mechanical

7 documented2 modified
  • Engine

    Air-cooled Carbureted Flat-six

    replaced

    Delivered with the 3.0L aluminum-case Flat-six. Now an air-cooled carbureted Flat-six, a significant deviation from factory fuel injection.

  • Fuel delivery

    Dual Weber 46mm Carburetors

    replaced

    Delivered with Bosch K-Jetronic CIS fuel injection, standard for the era. This car now runs dual Weber 46mm carburetors, a common period conversion from mechanical injection.

  • Ignition / ECU

    Twin-plug distributor with CDI

    replaced

    Delivered with a Bosch CDI unit and single-plug distributor. Now fitted with a twin-plug distributor and CDI system for enhanced combustion.

  • Exhaust

    SST M&K exhaust system

    replaced

    Delivered with two-way catalytic converters and an air pump system. Now runs SST headers and an M&K exhaust system, a collector-preferred aftermarket setup.

  • Gearbox

    915

    rebuilt

    Left the factory with a 915 five-speed manual transaxle, standard for the era. A replacement 915 unit has since been rebuilt with new synchronizers, improving shift feel and longevity.

  • Suspension

    Suspension

    replaced

    Delivered with torsion bar suspension and front and rear sway bars. The suspension was recently rebuilt, replacing wear items like ball joints and bushings.

  • Brakes

    Brakes

    rebuilt

    Delivered with power-assisted four-wheel disc brakes, standard for the era. The front calipers were rebuilt in 2021, and Speed Bleeder Valves provide easier fluid changes.

Comfort

3 documented1 to spec2 modified
  • Windows

    Manual crank

    factory

    Delivered with manual crank windows, a configuration characteristic of early US production; photo confirms present.

  • Audio

    Sony CD stereo

    replaced

    Delivered without a factory stereo, a common practice for dealer-installed options. Now fitted with a Sony CD stereo.

  • Air conditioning

    Kuehl AC compressor

    replaced

    Delivered with air conditioning, standard for US-market cars. Now uses a Kuehl AC compressor.

2 undocumentedshow fields
  • Spare tire
  • Frunk