OUTLAW CADILLAC 8.2L V8 MID-ENGINE PORSCHE - ONE OF A KIND
Make: | Porsche |
Model: | 911 |
SubModel: | TARGA |
Type: | TARGA |
Year: | 1981 |
Mileage: | 85,000 |
VIN: | WP0EA0918BS160228 |
Color: | Brick Red |
Engine: | 8.2 Litre Cadillac V8 |
Cylinders: | 8 |
Fuel: | Gasoline |
Transmission: | Dual Range FWD TurboHydramtic 425 |
Drive type: | RWD |
Interior color: | Tan |
Drive side: | Left-hand drive |
Vehicle Title: | Clear |
Item location: | Newport Beach, California, United States |
Extras |
Power Windows Convertible, Leather Seats |
Listed by |
Private seller |
Description of 1981 Porsche 911 |
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1981 Porsche 911 Targa - 8.2 Litre Mid-Engine Cadillac V8 General When I was 15 years old in 1972 I read about this type of engine transplant written up in "Peterson's Complete Book of Engine Swapping No. 2" and always thought is was a very clever idea. That write-up was for an Olds 425 V8 into a Porsche 912. That book had been sitting on my shelf for years and when I reached 45 the itch was just to great to resist and I decided to build my own. Fitting the package in The Porsche shock tower crossmember and sheetmetal behind the rear seat had to be removed. I chose a Targa body because of the extra unibody rigidty provided to help when this sheetmetal was removed. The body is still surprisingly stiff. When I was building the car onlookers swore that the back window would pop out and the chassis would twist. But it is all still nice and stiff. The Engine The engine is a 1970 Cadillac 500 cid block specially built for me by Maximum Torque Specialties of Wisconsin. They are/were THE performance Cadillac engine builder. The engine has been slightly bored, decked, and fully balanced. Forged rods and pistons are used, the very expensive Bulldog aluminum heads, pretty healthy cam with roller rockers and a specially designed valve train. Roller timing gear & chain, high flow oil pump, and lots of other goodies went into building this engine. It pulled 537 +/- hp on the dyno. It idles a little rough and gives this Porsche a very suspicious sound! To keep engine area temperatures low we ceramic costed the exhaust manifolds in and out to direct exhaust gas heat out the tailpipe. The stock manifolds to keep it quieter under the luggage (since the engine is literally right behind you). A high torque starter, remote oil filter, Holley spread-bore double pump carb and some billet goodies were also added. When you pull that luggage off and your onlookers see those "Porsche 8.2 Litre" valve covers you'll grin with delight at their complete bewilderment. The Transmssion There are only a few people that know about these TurboHydrmatic 425 Automatic transmissions. They are essentially a TurboHydramatic 400 with reverse rotation and a different valve body. These transmission were used in GMC motor homesand so there is tremendous strength and great aftermarket parts are available. This transmission was built to heavy motor homespecs, has a Trans-Go Shift kit, and is the VERY SPECIAL Switch-Pitch torque convertersystem. For those of you not familiar, applying a 12V signal to a transmission terminal changes the converter from low stall to high stall. This gives great hi-stall off the line performance and exceptional pull with it switches back to low stall. For more info just email me. I also have an aftermarket Switch-Pitch transmission controller that I have not installed and does with the car. Final Drive I used a 2:73:1 final drive. I tried a 3:17 ratio but the engine just revved too high at cruising speeds. With the huge torque of this motor and the dual range torque convertor the 2:73 gears are great. Note the wheels are 7's in front and 8's in the rear. These are the largest size stock Porsche rims and tires that fit this car properly and all are brand new (and were expensive). Powerplant Installation After removing the shock tower and rear seat sheetmetal the engine just lifts up from below. I use the stock Porsche corner engine mount structure in the back with different biscuits. The custom front mount is welded to the torsion bar tube. Exhaust I tested three exhaust systems and have settled on a MagnaFlow dual in, dual out muffler mounted in the typical Porschelocation. 2.5" pipes are used. There is NO "humming" effect (Flowmasters sounded the worst). For heat control I use ceramic coated stock exhaust manifolds. Certainly headers were considered BUT because the engine is so close to the interior I think the noise would be unpleasant. Besides....the power and torque is pretty insane anyway and I like the "sleeper" design. Cooling Engine cooling is handled by a specially designedaluminum dual cross flow radiator. This radiator also contains a transmission cooler and uses two VERY high capacity fans. A high capacity water pump was also used. After installation of a large oil cooler up front with a temperature switch the car is staying cool at all times in stop & go and light freeway driving here in Southern California during 75 to 90 degree weather. Interior What everyone loves is the leather Hartman luggage engine cover. I purchased used Hartman luggage on ebay and my fantastic interior guys (Roberto's Auto Trim in Costa Mesa, CA) figured out how to cut, hollow and attached the luggage to make the cover. The inside of the cover uses marine "SoundStop" engine room insulation to keep the passenger compartment quiet and cool. Summary This project turned out just terrific. The power plant package fits just great, it's a total sleeper, and people just can't believe it can be true. I've held onto the car for all these years because it is so unique. Well its time to move on. I've owned 75+ classic & special interest cars and now am turning my time to family, travel, outdoors and boating. The buyer will be getting something that will turn heads everywhere and appreciate the well thought out design and execution of the build. The has a clear Montana title. Cars of this age are granted "Permanent" registration status. CLICK ON ANY PHOTO BELOW FOR ORIGINAL LARGE DIGITAL IMAGE IN NEW WINDOW
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