PROJECT GALLERY — 3.6L / 3.8L Builds & Conv

1975 911 RSR Backdate 3.8L Engine Conversion and more!

Posted by PATRICK MOTORSPORTS on

1975 911 RSR Backdate 3.8L Engine Conversion and more!

This 1975 911 was backdated to a 1973 RSR style and received our 993 3.6L to 3.8L motor package. The car also had a fully adjustable RSR style suspension installed.  The 915 transmission was also addressed and we installed a lightweight stage 1 flywheel and clutch for improved throttle response and smooth engagement.  A limited slip differential helps keep the power planted on exit.  A 993 turbo brake package was installed to enhance stopping power as well. Enjoy the video!                               

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914 to 916 Tribute 3.8L DME 915 Tailshift Upgrade Conversion

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914 to 916 Tribute 3.8L DME 915 Tailshift Upgrade Conversion

Patrick Motorsports has built this 916 steel roof replica, powered by a fully built 964 DME based 3.8L engine, driven through a 915 gearbox with WEVO tail shift system. The car has a modern A/C system featuring R-134 refrigerant, utilizing a front mounted 993 A/C condenser with fan assist. We have stripped the chassis, seam welded & reinforced all critical areas, and incorporated a tubular cage system front to rear. This 916 Tribute won 1st in Class at PCA Werks Reunion 2015.   See it on YouTube! : http://youtu.be/wZvhkRCO2_k        914/6 Oil Tank Filler Neck Kit (OIL 901 107 640...

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Grand Prix White 1984 911 Carrera to 911 ST Long Hood 3.8L Varioram Euro RS G50 SBH Upgrade Conversion

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Grand Prix White 1984 911 Carrera to 911 ST Long Hood 3.8L Varioram Euro RS G50 SBH Upgrade Conversion

We started with a customer supplied 1984 911 Carrera 3.2L, first complete disassembly and evaluation. Then conversion to long hood early ST configuration. This will be powered by a 1996 993 v-ram configured to 3.8l Euro RS spec.. We will be using our G50 short bell housing gearbox. Take a look at the interior detail!            Porsche 911 GT3 Sport Muffler For Early 911 / 914-6 GT (EXH 911 GT3 SM PMS - Store Link) 1984 911 Carrera 3.2L to 911 ST Conversion With 3.8L 993 Varioram and G50 Fitment Of The HID Light System In...

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1973 911 RSR 3.8L Backdate Upgrade Conversion

Posted by PATRICK MOTORSPORTS on

1973 911 RSR 3.8L Backdate Upgrade Conversion

This 1974 to 1973 backdate 911 got a complete tear down, rebuild and upgrade package with a 3.8L engine, RSR bodywork, coilover suspension, and custom interior. Here is how it arrived at our facility as a roller with no engine or transmission:   No expense was spared with the suspension & brakes either. The car uses 993 Turbo 'Big Red' brakes with a fully adjustable RSR coilover suspension.Some of the parts include: - Rear Spring Plate Set - 935 RSR - (1965-1989) PORSCHE 911 / 930 Turbo (911 331 935 R 01)- RSR Lightweight Front Control Arm & Cross Member Suspension...

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Sahara Beige 1974 911 Carrera To 911 3.6L Twin Turbo RSR G50-50 Upgrade Conversion

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Sahara Beige 1974 911 Carrera To 911 3.6L Twin Turbo RSR G50-50 Upgrade Conversion

This original 1974 Carrera has been converted to an all steel RSR wide body, and fitted with a 993 Twin Turbo EFI engine and G-50/50 transaxle. It has also had a 1989 930 torsion tube conversion that allows the fitment of 930 rear trailing arms! Of course it has all 930 brakes & suspension. Take a look at our custom Twin Turbo Duck Tail!                

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Ocean Blue Metallic 1997 993 Hot Rod Build 3.6L to 3.8L Conversion

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Ocean Blue Metallic 1997 993 Hot Rod Build 3.6L to 3.8L Conversion
This hotrod started life as an Ocean Blue Metallic 1997 993 C2.  Converted from 3.6 to 3.8 liters with our slip in Mahle Performance piston and cylinder set, this car has been thoroughly gone over.

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1979 930 Turbo to 1974 911 RSR IROC 3.8L DME Euro 915 Upgrade Conversion

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1979 930 Turbo to 1974 911 RSR IROC 3.8L DME Euro 915 Upgrade Conversion

This original 1979 930 Turbo 3.3L chassis has been expertly converted to a lightweight 1974 911 RSR IROC inspired street racer! This chassis is fitted with a 1997, 993 Carrera 3.6L DME engine then converted to a high torque 3.8L displacement! Featuring hydraulic billet sport cams and married to a specially prepared, 1986 915 Euro transaxle gearbox with LSD and euro oil cooler system. This one of kind project is 100% built in-house.                  As you can see the Patrick Motorsports 911 / 930 Roll Bar fits like a champ! Also shown, our...

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"BIG LAGUNA" 914/6 GT 3.8L DME 915 Transmission Upgrade Conversion

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"BIG LAGUNA" 914/6 GT 3.8L DME 915 Transmission Upgrade Conversion

View this post on Instagram 914-6 GT Style "BIG LAGUNA" in from San Diego for service after 12 years & 7500 miles #patrickmotorsports #porscherestoration #porsche #porsche914 #9146 A post shared by PATRICK MOTORSPORTS (@patrickmotorsports) on May 15, 2020 at 12:30pm PDT The front trunk is the heart of our dry sump oil cooling system. This starts out with a Peterson OIL TANK part# OIL 08-0011-DB - 16 quart (4 gallon) aluminum (race) – dual breather - 9 inch. Diameter X 19 inches tall – Also uses the billet aluminum brackets part # OIL 08-0101 Price: $68.00. The oil is routed...

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Tangerine 1972 914/6 GT 3.6L DME 915 Upgrade Conversion Restoration

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Tangerine 1972 914/6 GT 3.6L DME 915 Upgrade Conversion Restoration

  At Patrick Motorsports we are among the fortunate few who are able to mix our passions and our livelihoods.  While some days we take it for granted and its just work, other days we look around and appreciate being surrounded by the best output of the truly iconic marquee that is Porsche.  The enthusiasm and passion that our team and our clients have for these cars is simply immense.   One such project of 2018 that embodies this passion and utter determination is a 1972 914 restoration belonging to a client of ours based up in Colorado.  The '72 914...

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1973 911 RSR 3.8L Twin Turbo MOTEC EFI Upgrade G50 6 Speed Upgrade Conversion

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1973 911 RSR 3.8L Twin Turbo MOTEC EFI Upgrade G50 6 Speed Upgrade Conversion

This special project's goalbwas to back date this 1978 PORSCHE 911 Turbo (930) chassis to the famous 1973 Porsche 911 RSR. This lightweight chassis is fitted with a custom built drivetrain featuring a 993 twin turbocharged 3.8L engine and 6 Speed transaxle. The engine is precisely controlled by a MoTeC M600 engine management system. The transmission is of our special 993 Short Bell Housing, 6 Speed transaxles. Another little addition will be on-board motorsport inspired, KRONTEC air jack system! And of course a fully adjustable brake and suspension system. Take a closer look! Best In Show Award - August 2014 Werks...

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1971 914/6 Italian Model to 914/6 Big GT Spec 3.6L DME Upgrade 915 Upgrade Conversion

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1971 914/6 Italian Model to 914/6 Big GT Spec 3.6L DME Upgrade 915 Upgrade Conversion

This original 914-6 was first delivered to Captain Willis, a paratrooper stationed in Bitburg Germany and later resided in Pordenone Italy.  Both he and the car were transferred to Florida where the car collected dust for many years.  In 2008, the vehicle was sold on eBay and started its transformation into a 914/6 GT.   Like many projects that come to Patrick Motorsports, this 914-6 sat in the midst of restoration for several years.  Oftentimes individuals and even shops underestimate the difficulty, labor and knowledge required for a full restoration.  The body of the vehicle was to receive GT style flared...

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917 LMK Gulf Tribute Featuring A Mahle Motorsports 3.8L 915 Conversion

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917 LMK Gulf Tribute Featuring A Mahle Motorsports 3.8L 915 Conversion

Youtube Linkhttps://youtu.be/EAx7RCNJaRMMeet the legend Up until this point, the only way to drive a 917 required you to be one of the few super elite drivers chosen by Porsche. Now that's all changed.There was an authentic Porsche 917K (#024) at auction at Gooding & Company, in Pebble Beach, for an estimated $13 to $16 million.If you could not bid on the 917K at Pebble Beach, Patrick Motorsports has the next best opportunity - and it will only happen once. A History of Racing Dominance The Porsche 917 was rushed onto the tracks in its 1969 debut, and initially struggled with some handling miscues,...

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PCA Werks Reunion Winning 914/6 Super GT 3.6L DME Varioram G50 Upgrade Race Car Conversion

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PCA Werks Reunion Winning 914/6 Super GT 3.6L DME Varioram G50 Upgrade Race Car Conversion

  Awarded 1st in Class at PCA Werks Reunion 2017. The 914-6 GT 3.6L Spec Racer fitted with a 1997 3.6L V-Ram engine and one of our Early G50 inverted mid-engine transaxles. Take a look! Won 1st in Class at PCA Werks Reunion 2017 in Monterey, California! The initial body being fitted to the acid dipped 914 chassis The body fit from the rear Here you see the inverted G50 trans mocked up in the rear of the 914/6 chassis The 914 steel targa bar weighs just 19.5 lbs                        ...

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Polar Silver 993 GT2 Lightweight

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Polar Silver 993 GT2 Lightweight

The Legendary Porsche 993 GT2 Lightweight - In the workshop for body repair, service and track preparation...and of course HVAC! Driving the lightweight GT-2 at INDE Motorsports Ranch was a treat, super smooth and very fast ! PMS Sachs Race Engineering GT2 Clutch on computer balancer PMS Billet Single-Mass Flywheel    

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1996 993 RSR EVO II 3.8L MOTEC ITB G50 6 Speed Upgrade Conversion

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1996 993 RSR EVO II 3.8L MOTEC ITB G50 6 Speed Upgrade Conversion

We started with a 1996 993 coupe and completely converted it to full race RSR GT II configuration. We used all EVO II lightweight composite glass body work including the roof skin, and flush mount lightweight LEXAN windows. On the scales we are at 2,360 lbs. We spared no expense or detail on this car. The engine is a 964 based 3.8L RSR, utilizing all the tricks- RSR big valves & seats, Sprint cams, TWM manifold system, hand made full race 1-7/8" stainless steel headers with merge collector & rear crossover secondary merge exit. We are utilizing the very best...

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1985 930 Euro to 935 3.8L Twin Turbo Upgrade Conversion

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1985 930 Euro to 935 3.8L Twin Turbo Upgrade Conversion

1985 930 Euro To 935 3.8L Twin Turbo ConversionBuilt With Mahle Turbo 102mm 3.8L Pistons   964 Based 3.8L twin turbo with gt 2 oil pump & black coated bearings 3.8l twin turbo intercooler & intake fabrication 935 SKID PLATE FABRCATION            

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Porsche 914 To 916 3.8L MOTEC EFI Slide-Valve ITB 915 Race Car Upgrade Conversion

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Porsche 914 To 916 3.8L MOTEC EFI Slide-Valve ITB 915 Race Car Upgrade Conversion

914-4 conversion to 916 style body, with a 964 based 3.8L MoTec managed Slide Valve EFI engine & 915 WEVO mid-engine transaxle. The car also incorporates the new M185 MoTec digital dash.  Final form, pictured with front and rear spoilers attached.       Parts List Shown With Store Links: Peterson Dry Sump Oil Tank Assembly - 4 Gallon (OIL 08 0011 DB) Remote Oil Breather Ventilation Catch Tank - 3 in. DIA (OIL 08 0410) AP Racing / Allstar Performance Dual Feed Remote Brake Reservoir (BRA CP2293 85) Setrab 180F Engine Oil Thermostat Set AN-12 Universal (OIL 901 107 T180...

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914/6 GT 993 3.6L DME 915 Upgrade Conversion - The Mule Car

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914/6 GT 993 3.6L DME 915 Upgrade Conversion - The Mule Car

For the installation into the “Project Mule Car”, the engine has been fitted with our Cam Block of Kit, Single Belt Alternator/ Crank Pulley Kit, 914-6 Engine Sheet Metal Kit, our special Engine Conversion Mount, 993 3.6L DME Engine Conversion Harness, Conversion Air Intake Boot Kit, Air Injection System Delete Kit, Stainless Steel Sport Headers with Polished Stainless Silencers, 914-6 Reproduction Oil Tank System, and our SETRAB Front Mount Oil Cooler Kit. Many other factory based parts will be used. This car will be fitted with a late model 1986 915 transmission with LSD featuring the WEVO rear tail shift...

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914/6 GT 3.6L DME 915 Upgrade Conversion

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914/6 GT 3.6L DME 915 Upgrade Conversion

  This car is fitted with our front oil cooler system, the Setrab oil cooler (part # PMP 500-15NPT3/4). This is plumbed to the engine using Goodridge fittings and stainless braided hoses. Adding an oil cooler system is a must for operation of the air cooled engines in warmer climates, as the factory engine mounted cooler just does not keep your engine operating in its optimal temperature range, causing premature engine wear and loss for performance. Our systems have been designed to keep your engine operating at its desired operating temperature which extends engine life and improves performance. 914 GT OIL COOLER...

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1974 914/4 to 914/6 3.6L DME 915 Upgrade Conversion - Black Beauty

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1974 914/4 to 914/6 3.6L DME 915 Upgrade Conversion - Black Beauty

This 1974 914 started life as a Southern California 4 cyl. daily driver. Now this "Black Beauty" should be right on the streets of San Diego! 1995 993 DME engine converted for 914 application. 1986 915 transmission with WEVO tail shift and PMS shift linkage system. This system works beyond belief!This 1974 914-4 chassis was very clean, we repaired a few rust areas, a little accident damage from the past, and then adding a full cage system w/o door bars for the street & steel GT flares and GT front oil cooler system.       This car is fitted...

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914/4 to 3.8L DME 915 Upgrade Conversion Restoration

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914/4 to 3.8L DME 915 Upgrade Conversion Restoration

Final assembly is complete, and the car is looking great with its retro look! This little 914 2.0L four came down from Colorado for our "auto spa treatment". The customer wanted reliability & great performance for his state of Co. that had to adapt and perform in various altitudes and temperature conditions! Well there is an answer to that problem, the 3.2L & 3.6L air cooler DME engine conversion from PATRICK MOTORSPORTS. Before the 914 was delivered our customer had decided that a 3.6L 964 DME engine coupled to a late ‘85 915 transaxle would be the drivetrain package. He...

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Light Blue Metallic 1981 911 SC 993 3.6L DME Varioram Upgrade Conversion

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Light Blue Metallic 1981 911 SC 993 3.6L DME Varioram Upgrade Conversion

Jeff's 1981 PORSCHE 911 Super Carrera with a 1997 993 3.6L V-Ram engine conversion.                 The 993 V-Ram 3.6L DME engine is originally equipped with secondary air injection system (smog pump), power steering and an oil filter console. The power steering pump driven off the right side camshaft is removed and replaced with our camshaft block off plate. We also remove and plug the air injection ports on the engine. The oil filter console is in place of the original style engine mounted oil cooler found on Porsche 911 cars made before 1990. This...

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Riviera Blue 911 RSR Race Car With 964 3.8L G50 5 Speed Race Car Upgrade Conversions

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Riviera Blue 911 RSR Race Car With 964 3.8L G50 5 Speed Race Car Upgrade Conversions

We fit this 911 race car with a 3.8L 964 based RSR engine, and coupled it to a 1989 G50 transaxle. The gearbox has all the tricks, tall 2.8 ratio first gear mainshaft set with close ratio gears straight thru 5th gear. We set the G50 up with a Quaife torque biasing differential and our billet side cover. This is just the start of our project build sheet, see the detail in the photos and read the description of parts & service related to getting it done. These services shown here are performed daily at Patrick Motorsports, and the products we...

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Guards Red 1998 993 Carrera S Varioram to 3.8L Euro RS Engine Upgrade Conversion

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Guards Red 1998 993 Carrera S Varioram to 3.8L Euro RS Engine Upgrade Conversion

We have just completed a fully documented conversion of this 1998 Porsche 993 Carrera 2 S to a full Euro 993 RS 3.8L engine. Baseline Dynamometer Testing Results: The stock original 993 3.6L Varioram engine configuration produced 225.75 Ft/lbs Torque and 243.50 Horsepower at the wheels.         Balancing the single mass Euro RS flywheel and clutch assembly. Sachs Race Engineering Sport GT2 Clutch Porsche 993 Euro RS 3.8L Engine Conversion Package. Notice the large valve heads and lightweight magnesium intake manifold base runners! Original Porsche Engineering!     The Porsche Euro RS 3.8L cylinder heads as received. For this project...

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Mexico Blue 1996 993 Turbo G64 4WD To 2WD GT2 Upgrade Conversion Restoration

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Mexico Blue 1996 993 Turbo G64 4WD To 2WD GT2 Upgrade Conversion Restoration

 This 993 Turbo came to us as a Black Horse, and needed a refresh so the famed Mexico Blue was chosen to breathe some life back into the car. The GT2 style is referring to the change from 4 wheel drive to 2 wheel drive.  We have converted the original 993 Turbo all wheel drive gearbox G64/51 to a 993 Turbo 2 wheel drive unit. This keeps the nice tall turbo gears and the strength in tact, it also retains the center oil feed main shaft and pinion shaft that the G64/51 & GT2 have in common.  New interior...

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Maritime Blue 1995 993 RSR Speedster 3.8L MOTEC ITB 2WD G64 6 Speed Race Car Conversion Restoration

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Maritime Blue 1995 993 RSR Speedster 3.8L MOTEC ITB 2WD G64 6 Speed Race Car Conversion Restoration

This project started life as a 1995 Porsche 993 Carrera 2 cabriolet. I purchased it as a salvage title interior fire/burn, and parted it out. I always dreamed of a race car, or Crazy C4 Roadster conversion -turbocharged of course, "Pikes Peak" killer. OK, I came to my senses, and here is what we have done. We stripped & sand blasted the tub, seam welded & caged the chassis. We then gave it the Zinc acid etch sealer. We fitted it with the 993 GT2 glass body package, our little twist was the addition of the cab./speedster profile. We have...

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1991 Porsche 964 3.8L RSR Twin Turbo G50 6 Speed Restoration Conversion

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1991 Porsche 964 3.8L RSR Twin Turbo G50 6 Speed Restoration Conversion

  This 964 RSR was built to win with a 3.8L twin-turbo engine, 993 G50 6 Speed, Wavetrac differential and more!  Oil Scavenge Pump and Crankshaft Cam Work                   993 Twin Turbo engine & 6-speed conversionBuilt up to 3.8L with Mahle Pistons & CylindersPauter rods, GT2 Pump, GT2 sport camsHandmade custom 321 SS headers and exhaustTwo K24 turbosTall 1st gear + Short gear stackWavetrac differentialMoTeC C125 Race DisplayTuned MoTeC M600 ECUAll parts used in this build are stocked, distributed,and installed at Patrick Motorsports!

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Light Yellow 1980 911 SC TO 911 RS 3.8L Backdate Restoration Conversion

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Light Yellow 1980 911 SC TO 911 RS 3.8L Backdate Restoration Conversion
This 1980 911 SC to RS is sporting our Mahle Motorsport 3.8L engine package, 915 transaxle, 935 - coilover suspension and 993 Twin Turbo BIG brakes!

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Grand Prix White 1978 911 SC 3.0L To 911 ST Backdate Restoration Conversion

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Grand Prix White 1978 911 SC 3.0L To 911 ST Backdate Restoration Conversion

Another 911 backdate from 1978 911 SC to 911 ST - all steel fenders! 993 3.6L DME engine & 915 Euro gearbox with LSD & oil cooler. L-908 Grand Prix White with special M-Tex Benz navy blue interior! 911 ST Conversion Front Nose Metal Work Completed 911 ST Rear Driver's Side Steel Fender Metal Work test fitment and lined up 911 ST Rear Driver's Side Steel Fender Metal Work Welding Progress Driver's side rear quarter panel steel fender metal work finished Paint preparation and Imron primer under finish.  Fitting the Front Long Hood, RS Front Bumper, and Front Steel Fenders....

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1976 911 Turbo Carrera to 993 3.6L DME Conversion Restoration Upgrade

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1976 911 Turbo Carrera to 993 3.6L DME Conversion Restoration Upgrade

This 1976 911 Turbo Carrera came to us from San Diego for a bit of restoration & upgrades. The plan was to fit the car with a 1995 993 3.6L DME engine featuring A/C and heat, along with upgrading the suspension & brake system to hang on the newfound power plant.1976 911 Turbo Carrera to 993 3.6L DME Conversion Restoration Upgrade Before restoration start  The finished car below.  Read more below to see the upgrades and conversions     Our rear 964 4 piston brake caliper conversion with late 930 rotors               These classic BBS...

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