Popular with super car players "Big Bumper 911"

*This is a translation done by a machine.

The Porsche 911 is a model that has long been referred to as the "long-life model" or "few decades have passed without changing the basic design.". It's true in a sense, but not in a sense. The first model, the 1965 model "901", and the latest model "992" have changed so much that I think they have little in common except for the fact that they use a horizontally opposed 6-cylinder engine and an RR layout. The history of 911 is a product of repeated evolution and improvement.

There have been some big changes in the long history. Therefore, the first model that comes to mind when you hear "911" is different for each generation, and it is characteristic of Porsche. The explosive popularity of the "Porsche" name in Japan is thought to have been sparked by the supercar boom that began in the mid-1970s. The model most familiar to this generation of enthusiasts is the 2nd generation 911 model from the 1974 model to the 1989 model.

Also referred to as "G Model" by enthusiasts, the 2nd generation features a 5-mile bumper for compliance with North American safety standards. Therefore, it is often called "Big Bumper". The standard 911 of the Big Bumper era can be roughly divided into 3 generations. The first is the so-called "2.7" from the 1974 to 1977 models, the second is the "SC" from the 1978 to 1983 models, and the third is the "Carrera" from the 1984 to 1989 models. These classifications are mainly based on the displacement of the onboard engine. "2.7" of course has a 2.7 liter engine, "SC" has a 3.0 liter engine and "Carrera" has a 3.2 liter engine. Up to 2.7, the model is still type 901 from the time of Narrow, but after SC, it is type 930. Some people refer to the entire 911 in the Big Bumper era as "930", but officially the SC and Carrera are "930".

Needless to say, the highest-performance model of the Big Bumper era is the Carrera from the 1984 model. With a bore stroke of 95.0 x 74.4 mm in diameter, the 3164 cc engine delivers 231 ps in German specifications, accelerates to 0 ~ 96 miles in only 5.4 seconds, and has a maximum speed of 245 km/h. Since the power surpassed Carrera RS in 1973, it was given the name "Carrera" which had been given only to racing models and their base models.

The sharpness of the 3.0 liter model was the most impressive in the SC era, but the power and torque of the 3.2 liter model of Carrera stand out more. Now, the most important point is how often the maintenance is carried out, but at that time, I felt that the speed had increased, and I can't forget that I was strongly aroused by the longing.

Tomoyuki Shimada's Highlights!

This 1985 model 911 Carrera is from Mitsuwa Automobile which is a regular dealer. The current owner purchased the car in 2013, and the mileage at that time was already 109000 km.

The most distinctive feature of this car is that the engine has been changed from the Japanese specification of 217 ps to the German specification of 231 ps, and the current owner has spent about 11 million yen and enthusiasm since obtaining it and has kept it in excellent condition. And the details of the overhaul and maintenance that the current owner has made are all recorded.

Let's list some of them. It is only a part, but it may be hard to check. But be sure to check it out so that you know the enthusiasm of the current owner.

First of all, in 2014, the current owner did not break it, but because the original engine had blow, there was also a desire to taste the real ability of the 911 Carrera, so I changed it to a German specification. In 2017, when the mileage was 150,000 km, the engine and transmission were overhauled and heavily maintained by the hands of a mechanic called "the master of air-cooled Porsche."

Split the crankcase and replaced the 2nd piston ring. Replaced 12 stud bolts and replaced head sensor. Replaced the full load contact. Replaced the throttle lever. Machining the head. Replace the valve seat. 12 valves were replaced. Adjusted the valve contact. The valve guide was replaced with a new one. Replaced three fuel lines under the intake manifold. Replaced the catalyzer. Replaced the fuel damper. Replace the oil filter. Replaced the oil pressure switch. Replace the ground cable. Six plugs were replaced with Bosch WR7DC.

Replaced the 1st and 2nd gear synchronizers. Replaced the drain plug. Replaced pinion shaft bearing. Replaced the back switch. Adjust the differential side flange and backlash.

The clutch was overhauled. Re-setting the foot circumference (Height adjustment and simple alignment adjustment). The left half shaft was overhauled. Repair the sunroof (Removal of sunroof and replacement of strip).

Before that, it was heavily maintained in 2015 at a Porsche specialty store that is said to be one of the oldest stores.

Overhauled the brakes (Replaced the disc, rotor, caliper, brake hose and brake sensor with genuine products.). Replaced all oil lines (Front oil cooler, thermo housing, and oil hose) with genuine products. The muffler catalyst was replaced with an external one (Genuine product available). Replaced the steering wheel leather. Replaced the weather strip. Replaced the speed sensor. The fan of the cooler condenser was replaced. Replaced the genuine plug cord. Replaced the ignition coil.

Recently, in 2018 it replaced the front and rear brake pads of FERODO, in 2019 it replaced 4 tires with P Zero ROSSO of Pirelli, and in the same 2019, after the restoration finish by Chiba Garage, the leather belt for fixing the rear seat was replaced with a genuine new one, the air conditioner compressor and belt were replaced, and the left and right sun visors were also replaced with new ones. In this way, it is very finely cared for. Again, the above repairs are only a part.

As a result, the engine system is very good. The engine delivers a very clear, air-cooled sound and is amazingly smooth and powerful. The mission is so maneuverable that you wouldn't believe it was a Porsche 915 that has been described as "The feeling of stirring honey with a spoon.". I've test drive a number of Carrera so far and this car has never been so favorable. I was able to truly feel the words "I took care of it because I wanted to keep it in the condition it was in when it was shipped from the factory to Germany." by the current owner.

That's why the interior and exterior of the car are kept as original and the height of the car remains as standard. The only difference is the LSD made by OS Giken which was built in 2016.

If you look closely, there is a small scratch by stepping stones around the front, but it has been carefully repaired by the restoration finish, and the headlamp is also brighter than the LED because the lens is polished beautifully. Of course, there are no dents or fading of paint. The interior has some scratches on the seat, but considering the age of the car, it can be said that it is in good condition, and overall, it is exceptionally beautiful. If I were to look for a minus point, it would be that there is no seat belt on the left side of the rear seat and there is no gas in the air conditioner.

The car body has never been repaired and the paint has been original since it was new. There are also documents for the new car warranty of Mitsuwa Motors, and the maintenance history of the current owner is well kept and all are ready. As mentioned above, since the engine has been replaced, there is no number matching, and if you simply look at the mileage figures, it is over 174000 km at the time of the interview, so you cannot say that it is suitable for those who are particular about that. However, with the maintenance of the air-cooled Porsche professional, it is a fact that it has been performing like a new car or even better.

If you want to experience the fun and comfort of the Big Bumper era of 911, I thought there would be no better car.

Vehicle Specifications

Model Year1985
Year of PurchaseJul 1985
Engine Capacity3,164cc
Steering WheelLeft
ColorGrand Prix White
Chassis No.WPOZZZ91ZFS109653
Engine No.
InspectionAugust 2021
AreaChiba, Japan