For show 935 by JLP Manual

Porsche 935 by JLP, 1981 - Primary exterior photo
Exterior color
BlueBlue
Interior color
BlueBlack
Mileage
Not specified
Power
412 kW
First registration
Not specified
Model year
1981
Drive layout
Rear wheel drive
Steering
Left hand drive
Accident history
Repaired by Porsche Service
Technical problem
No
Full service history
No
Warranty
No
Number of owners
Not known
Wheel size
16"
Seats
Bucket seats (Cloth fabric)
ABS
PCCB
LSD
Navigation
Sports exhaust
TV
Entry & Drive
Servotronic
Seat memory
Air suspension
Leather dashboard
ParkAssist
Front seat heating
Parking heater
Rear seat heating
Trailer hitch
Heated steering wheel
Cabriolet hardtop
Additional information

935 JLP-3 IMSA

Chassis: JLP-3

The only car to win both the Daytona 24 Hours and the Sebring 12 Hours in the same year
1982 IMSA Camel GT Championship winner
Five consecutive race winnings and 16 podium finishes in 26 races
Professionally restored by Gunnar Racing, with maintenance by Gunnar and Canepa
Driven by John Paul Sr. & John Paul Jr. and Derek Bell
JLP-3 is believed to be the most successful of all Porsche 935 race cars. It is the only car to ever win both the Daytona 24 Hours and the Sebring 12 Hours in the same year, 1982. It recorded an unprecedented, seven consecutive First Place finishes from Pocono in September of 1981 through Charlotte in May of 1982. In its career of exactly two years from Sebring 1981 through Daytona 1983, out of a total of twenty-seven races, it recorded nine wins and sixteen podium finishes. That’s a win in every three races entered and a podium in 60% of its races, an astonishing achievement. Its finishes contributed to John Paul Jr.’s 1982 Camel GT Championship and his father’s 1982 international Triple Crown of Endurance Championship.

The story began when the father and son driving team of John L. Paul Sr. and Jr. turned to Graham “Rabbit” Bartrills’ GAACO company in Norcross, Georgia to build a special Porsche 935 for endurance races. Given the designation JLP-3, aside from the engine and transmission, it used only the cowl, windshield pillars, roof, and door frames from a 1972 Porsche 911T. The rest was all high-tech, tube frame, custom fabricated race car with lightweight fiberglass bodywork and the latest suspension and aerodynamics. In the opinions of expert aficionados, this is the definitive Porsche 935. The GAACO chassis is carefully laid out to maximize responsiveness, handling and, most importantly, balance.

Powered by an twin-turbo air-cooled, 3.2-liter IMSA-spec engine with Bosch mechanical fuel injection, the twin-turbo Porsche 935 JLP-3 was restored some years ago by the Porsche specialists at Gunnar Racing and has since been maintained by them and Canepa. Presently in the hands of only its fourth owner since the John Pauls, the JLP-3 has recently undergone a painstaking race preparation, at which time its engine, four-speed transaxle, suspension, and brakes were all rebuilt. JLP-3 is currently race ready and more than capable of winning at an international historic level. It is eligible for all foreign and domestic IMSA GT vintage events, including selected events such as the Rolex Monterey Motorsports Reunion and the Wine Country Classic.

On any continent, in any company, JLP-3 is a welcome entrant and a participant that will thrill its drivers and everyone fortunate enough to see it perform. Its record of back-to-back victories in the Daytona 24 Hours and Sebring 12 Hours is unmatched in the fabled history of these two races, and with 23 podium finishes, nine First Place wins, and seven consecutive victories, JLP-3 is considered by many as the most dominant of all Porsche 935s in existence for a reason.

JLP-3 Competition History

1981 IMSA Camel GT Championship

12 Hours of Sebring – John Paul Jr. / John Paul Sr. – 66th place, Qualified 6th
Road Atlanta 100 Miles – John Paul Jr. – 8th place, Qualified 1st
Riverside 6 Hours – John Paul Jr. / John Paul Sr. – 2nd place, Qualified 1st
Laguna Seca 100 Miles – John Paul Jr. – 2nd place, Qualified 2nd
Lime Rock 200 Miles – John Paul Jr. – 6th place, Qualified 5th
Mid Ohio 200 Miles – John Paul Jr. – 3rd place, Qualified 1st
Brainerd 200 Km – John Paul Sr. – 3rd place, Qualified 7th
Daytona 250 Miles – John Paul Jr. / John Paul Sr. – 3rd place, Qualified 2nd
Watkins Glen 6 Hours – John Paul Jr. / John Paul Sr. – DNF, Qualified 2nd
Mosport 6 Hours– John Paul Jr. / John Paul Sr. – 30th place, Qualified 3rd
Road America 500 Miles – John Paul Jr. / John Paul Sr. – 13th place, Qualified 1st
Road Atlanta 150 Miles – John Paul Sr. – 27th place, Qualified 6th
Pocono 500 Miles – John Paul Jr. / John Paul Sr. – 1st place, Qualified 1st
Daytona Finale 250 Miles – John Paul Jr. – 1st Place, Qualified 1st
1982 IMSA Camel GT Championship

24 Hours of Daytona– John Paul Jr. / John Paul Sr. / Rolf Stommelen – 1st place, Qualified 5th
12 Hours of Sebring – John Paul Jr. / John Paul Sr. – 1st place, Qualified 6th
Road Atlanta 150 Miles – John Paul Jr. – 1st place, Qualified 1st
Riverside 6 Hours – John Paul Jr. / John Paul Sr. – 38th place. Qualified 3rd
Charlotte 500 Km – John Paul Jr. / John Paul Sr. – 1st place, Qualified 3rd
Lime Rock 1 Hour – John Paul Sr. – 5th place, Qualified 5th
Daytona 250 Miles – John Paul Jr. – 18th place, Qualified 2nd
Sears Point 100 Miles – John Paul Jr. – 20th place, Qualified 4th
Mosport 6 Hours – John Paul Jr. / John Paul Sr. – 1st Place, Qualified 3rd
Road America 500 miles – John Paul Jr. / Mauricio de Narvaez – 2nd place, Qualified 8th
Mid-Ohio 6 Hours – John Paul Jr. – 41st place, Qualified 4th
Road Atlanta 500 Km – John Paul Jr. / John Paul Sr. – 1st place, Qualified 4th
Pocono 500 Miles – John Paul Jr. – 2nd place, Qualified 2nd
Daytona Finale 3 Hours – John Paul Jr. / Mauricio de Narvaez – 63rd place, Qualified 6th
1983 IMSA Camel GT Championship

Daytona 24 Hour – John Paul Jr. – 22nd place, Qualified 27th
Canepa Service History

2005

Rebuilt fuel injection pump
Cleaned fuel tank and fuel tank foam
Replaced all chassis and in tank fuel lines
Replaced fuel pumps
Install upgraded ignition coils
Install upgraded CD boxes
Rebuild boost gauge
New wiring harness to support new CDI boxes.
Replaced battery
2007

Rebuilt turbo chargers
Rebuilt turbo charger oil feed line
Replace right rear axle seal
Install ¼ Gurney flap
2008

Complete engine rebuild (by Jerry Woods Enterprises):

Replaced pistons & cylinders (3.2), Carrillo connecting rods, rod bearings, main bearings, nose bearing and intermediate shaft bearing.
Replaced camshaft thrust plate and thrust washer, exhaust valves, exhaust valve guides and seats, rocker arms, valve adjusting screws and lock nuts.
Replaced intake valves, intake guides and seats, head studs (set); cylinder head sealing rings and base gaskets.
Replaced timing chains, chain tensioner, tensioners and timing chain guides, idler arms, turbocharger seals and gaskets, oil pressure switch and oil return tubes.
Replaced fan center drive, v belt and alternator belt.
Replaced oil lines and fittings.
Replaced spark plugs, spark plug wires and connectors.
Transmission rebuild:

Replace transmission ring and pinion gear, differential bearings, etc.
Replace main shaft bearings, differential bearing and seals, ring gear bolts and lock plates, pinion bearing, and transmission gaskets
Replaced faulty starter motor
Installed new SFI approved roll bar padding
Installed a complete set of Canepa brake rotors, including mounting bolts and washers
2009

Replaced rocker arm on cylinder #4. Installed new rocker shaft and seal with new rocker shaft o-ring seals on cylinder #2. Adjusted intake and exhaust valves. New set of (12) spark plugs.
Rebuilt turbo chargers
Installed new turbo oil supply gaskets, turbo oil drain gaskets, turbo inlet gaskets and turbo outlet gaskets.
Installed new make-up tank fuel pump. Installed new fuel filter cartridge. Cleaned and inspected fuel bladder. Washed fuel cell case. Fabricated new fuel pickup plate with all new hose fittings and custom formed pick up tube.
Rebuilt air jack valve

Car location
4900 Scotts Valley Drive, Scotts Valley, California, 95066, United States
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Photos
Porsche 935 by JLP, 1981 - #1
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Porsche 935 by JLP, 1981 - #7
Porsche 935 by JLP, 1981 - #8
Anniversaries
Sep, 19 – 110th birthday anniversary of Ferry Porsche (1909)
Sep, 23 – 15th birthday of the Boxster 987 (2004)
Sep, 28 – 31st birthday of the 911 964 (1988)
Oct, 29 – 79th birthday of Hans-Peter Porsche (1940)
Nov, 15 – 44th birthday of the 924 (1975)