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Thread: 1968 Porsche 911 Sportomatic C/D Road Test

  1. #1

    1968 Porsche 911 Sportomatic C/D Road Test

    From their archive; Car and Driver Magazine of that era was more irreverent then the other pubs of the day . . .


    1968 Porsche 911 Sportomatic
    Like the car itself, Porsche's "automatic" transmission takes a bit of getting used to.

    From the March 1968 Issue of Car and Driver


    You really don’t suppose that the Herren Doktoren at Porsche really believe all that FIA stuff about the 911 being a Group II sedan?

    On the other hand, how do you explain Stuttgart’s new Sportomatic transmission? If the 911 was a legitimate 4-passenger sedan, instead of a precise, responsive Gran Turismo, the Sportomatic might be a nifty option. But despite what the FIA has said, the 911 is a GT, and we can’t reconcile ourselves to the fact that Porsche would sacrifice so much to develop a new market. Say it isn’t so.

    It is. Sportomatic, which is nothing more than the time-honored Porsche 4-speed transmission connected to the engine with an automatic clutch and a torque converter, is now available on all 911s. And we don't like it. We understand the reasons for it, but we disagree and we don’t like it.

    Follow the reasoning of Porsche’s product planners. The traffic situation in metropolitan areas gets worse by the day and there’s no relief in sight. People are here to stay, and people drive cars, and more and more of them, and those cars clog the highways. Even die-hard sports car buffs have been known to grow weak after continued exposure to rush-hour traffic if only in half-hour, morning and evening increments. There is the purist stuck on the Bayshore Freeway or the East Side Drive and it takes him an hour to drive five miles—bumper to bumper—and his left leg begins to tie up and he’s got a charley horse that would put a pentathlon star to shame and he begins to wonder if there isn't something better.

    Porsche did some wondering too, and Porsche’s answer was the Sportomatic. Trouble is, Porsche should have held out. Porsche is the enthusiast’s car. It's not cheap, but it's not up there with Lamborghini either. It’s comfortable, it handles, and it goes—even as a Group 2 sedan, maybe especially as a Group 2 sedan. It would be easier to discover your wife was unfaithful than Porsche—but that's not the way Porsche thought of it.

    Porsche thought it had a perfect car for the enthusiast and non-enthusiast alike. Maybe the car's bumper protection really isn’t up to the task of defending the 911 against onslaughts from arrogant buses and taxis, but with Porsche's agility and modest size that kind of defense shouldn’t really be necessary. Just give us an automatic transmission—Porsche thought—and we'll have an everyman’s car, everyman who can afford over $6300 that is.

    Well, it doesn’t work. Not only is Sportomatic a funny name, but the transmission is a funny transmission—though there is little humor in the added $280 tacked on because they’ve taken away the clutch. The whole thing puts you to mind of Detroit’s bizarre efforts at clutchless shifting that died a merciful death in the middle Fifties. The great unlamented Gyromatic, for instance. If the Gyromatic didn’t put Chrysler Corporation out of business, it hurt—and hurt badly; and we’re sad to see Porsche repeat the experiment.

    Porsche begins by calling its Sportomatic an automatic transmission, and you’d think, if you didn’t know any better, that the transmission would change gears by itself. No chance. And in this day of computers and automation, being required to shift an automatic is a hard fault to overlook. It’s unlikely Porsche is trying to deceive anyone except themselves, but the fact remains that they’ve labeled the gear shift knob L-D-D3 and D4 in the Sportomatic. Save your stamps if you’re interested in finding where D2 went. We haven’t a clue. A thorough search uncovered not a single trace of it, and we looked hard. Its whereabouts will forever remain one of the mysteries of the Sportomatic.

    But P is a good lick. Everyone should have a parking lock, even if it’s only so you can concentrate at the drive-in.

    So Porsche wanted to sell more cars—wanted to have a broader market base—and decided the time-honored automatic clutch was the answer. As we said, it's nothing new. There’s a whole untapped market out there made up of people whose level of coordination won’t allow them to put any kind of sequence at all to the movements of a clutch pedal and gear shift lever. And it’s obvious Porsche had them very much in mind. Even near imperceptible movements of the shift lever actuates a microswitch which, through a solenoid, activates a vacuum system. A single plate dry clutch, inspired by a vacuum cylinder, interrupts torque flow so the manual transmission can be shifted. The purpose of the torque converter is clear: it allows the 911 to be stopped with the brake without declutching or engaging neutral. Moreover, it multiplies engine torque in the lower speed ranges to reduce the need for selecting a lower gear when greater acceleration is required.

    All of which is to say that driving a Sportomatic is not difficult, but enjoying it would require concentrated effort and no previous exposure to the delights of the manual car—a lovely, exciting, satisfying device.

    In explaining how all this works, Porsche encourages you to engage D when and if you choose to move forward. Use L when ascending or descending steep grades. Cope with ice and ennui as best you can—a problem that Porsche has never had before.

    D was dutifully selected and a moderate depression of the throttle opened all six Weber throttles in absolutely normal fashion. The result was a healthy roar from the engine compartment with a sadly dispro*portionate amount of forward progress. Any major throttle opening with the transmission in any of the D positions causes the tach to zoom up to about 3000 rpm and hang there until the car catches up. As a matter of fact, one of our biggest objections to the Sportomatic was trying to distinguish any one D from any other D. They all seemed the same. The engine sounded the same, the performance seemed about equal and we just didn’t know what to make of it.

    Happily, once you get the thing over 3000 rpm, the system acts much more like a manual transmission. A little experimenting with the not-recommended L position resulted in an engine roar much more in keeping with the car’s speed and, better still, it reduced quarter-mile times by a half a second. Not bad. Don't be alarmed, Porsche lovers, L is simply first gear in the manual transmission, so there is no reason why it shouldn't be used for acceleration as well as braking.

    One more moment of carping: you will remember we said that the clutch is automatically disengaged with even imperceptible movements of the shift lever. We weren’t kidding. The driver had better remember precisely where the shift lever is, because if he so much as rests his hand on it before he is ready to shift, the clutch will disengage and the tach will whirl out of sight before you can say “holy broken motor.” Porsche claims to have an automatic ignition cut-out, but who wants to see if it works?

    With all this, it’s about time to make it clear that there’s absolutely no trouble in shifting. Just grab the lever and move it. No matter how fast you do it, it's impossible to beat the clutch or the synchronizers. And that’s a real pay raise if you want a Porsche and your wife doesn’t because she doesn't think she’ll be able to drive it. She will, and easily, too. And maybe that’s one of our objections. You may find yourself a little embarrassed when you’re trying to make a quick shift because the sound put out for the world to hear is a pretty strong implication that the driver doesn’t know when it’s safe to let the clutch out.

    So you’re driving the Sportomatic with your hand poised, hawk-like, in mid-air, waiting the proper time to swoop down on the lever. But it might be well to remember that the hawk-like hand isn’t the only thing ever to hit that lever. You can do it with your knee under hard cornering—and who wants a Porsche if he isn’t going to bend it in a corner now and then—and if you go for the fast idle or heater controls located between the seats, and miss, you might find yourself in D3.

    So we’re unhappy. And we’re unhappy because the 911 is still something of a standard for judging roadholding and ultimate cornering ability. We were pleasantly sur*prised to learn that those unfashionable 4.5-inch wide wheels used on Porsches almost since day one have been replaced by wheels an inch wider. Racing seems to have improved the breed here, and Porsche, which stormed off with the under 2-liter championship in the ‘67 Trans-Am series, has obviously paid attention to how they accomplished that. Ride harshness suffers, but what the hell, it‘s a Porsche, and Porsches are cars.

    Porsche handling has usually generated debate among the oversteer-understeer factions. We like it, it's got style and it works. Hang the tail out, put a wheel in the air and grab a handful of reverse lock, we say. On the other hand, we do recommend that a newcomer to the car approach it with great respect. The transition from initial understeer to mild oversteer can be disconcerting to the novice.

    Another thing the 911 does well is stop. The truly sophisticated internally vented disc brakes on all four wheels pull the car down at a .91G deceleration rate in our 80 to 0 mph braking test. More than that, not a trace of fade was apparent after four stops. This kind of performance is vastly superior to what we’ve grown to expect from the more conventional disc front/drum rear systems on so many American and European cars.

    continued . . .
    Last edited by DOUGS73E; 01-09-2014 at 02:52 PM.
    Doug Dill

    1973 911E Coupe
    PCA #1987109761
    Early 911S Registry #548

  2. #2
    continued . . .

    Several visible changes have been made in the car for ‘68 so that they will comply with the federal government's safety and exhaust emission standards. The windshield wiper arms are now flat black and, for some reason, come to rest in front of the driver instead of on the passenger side as on earlier 911s. Porsche styling has generally been way ahead of the pack, particularly in the lighting department. The car’s parking and tail lights are of wrap-around design which makes them visible from the sides as well as the front and rear. Even so, Porsche has added reflectors on the sides of both front and rear fenders—and the result is that a Porsche will never go unnoticed at night. Besides, what better way to tell a ‘68 from a pre-federal safety standard 911?

    Another, sadder, change is the absence of the 911S. The 180 hp car is no longer available in this country thanks to the benevolent legislators and the smog laws. Porsche engineers weren’t able to strain enough carbon monoxide and unburned hydrocarbons out of the exhaust and still have 180 horsepower left for the customer, so they’ve concentrated their efforts on the 148 hp version. Porsche has used the typically European approach to the exhaust emission control problem, choosing the afterburning process in which fresh air is pumped into the exhaust manifold resulting in rapid oxidation of large clouds of evil gasses. Installation of all the required plumbing has made the engine compartment crowded, but aside from the clutter no undesirable effects resulted. Besides, whatever the virtues of previous Porsches, service accessibility was never among them and, like dueling scars, burns and skinned knuckles have always been a badge of merit among true Porsche lovers.

    For any GT car in the $6000 range to be worth its salt, consideration must be given to the driver. After all, these are supposed to be drivers’ cars and not family barges. In this area the Porsche really shines. A few hours behind the wheel gives the impression that a driver could set off for the end of the world and still be fresh enough for a return trip without ever getting out. The luxurious bucket seats support just the right portions of the anatomy while the woodrim steering wheel is the proper arms-reach away. Unfortunately, the rim of the wheel obscures the driver’s view of the oil level on the left and the clock on the right. This is the only serious flaw in an otherwise well layed-out interior. Since there is no clutch pedal with the Sportomatic, the designers have thoughtfully provided a platform for the driver to rest his left foot. Other manufacturers please copy.

    Air-cooled cars are not famous for having the most powerful heaters in the world so auxiliary heaters of some sort are frequently provided. Our test car was equipped with such a device of extraordinary capacity. We fully expect that the interior of this car could be maintained at a comfortably warm temperature in an Alaskan winter even with the doors open.

    How, then, does the Sportomatic Porsche fit into the luxury GT car market? Mechanically, we question the wisdom of circulating engine oil and torque converter oil from the same sump even though we know Porsche engineers don’t make many mistakes. A definite problem area exists when the clutch can be disengaged by accidental contact with the shift lever even though this is an essential part of the whole automatic clutch system. Still, we grudgingly admit that Porsche has probably increased their market appeal. Any territory gained would be in the non-enthusiast area since we can’t conceive of any current Porsche buyers denying themselves the joy of using its faultless 4- or optional 5-speed gearbox or just giving up part of the precision feel of the pre-Sportomatic 911. Non-enthusiasts who could appreciate the Porsche as a fine touring car but have no desire for total involvement in driving technique will be potential customers for the Sportomatic. Somehow, it just seems that Porsche has compromised themselves and this is hard to swallow. Like finding out that your mother is taking in laundry just to put you through school.

    We've tested 911s before and come away glowing with admiration. We are still glowing. Unless there are some changes made in the Sportomatic, however, the 911s we will choose in the future will have foot-operated clutches and no torque converters, thank you.

    Doug Dill

    1973 911E Coupe
    PCA #1987109761
    Early 911S Registry #548

  3. #3
    Specifications

    VEHICLE TYPE: rear-engine, rear-wheel-drive, 2+2 passenger GT coupe

    PRICE AS TESTED: $7,156

    ENGINE TYPE: air-cooled flat-six, aluminum block and heads

    Displacement: 121.5 cu in, 1991 cc
    Power: 148 hp @ 6100 rpm
    Torque: 145 lb-ft @ 4200 rpm

    TRANSMISSION: 4-speed automatic

    DIMENSIONS:
    Wheelbase: 87.1 in
    Length: 163.9 in
    Width: 63.4 in Height: 52.0 in
    Curb weight: 2430 lb

    C/D TEST RESULTS:
    Zero to 60 mph: 9.3 sec
    Zero to 100 mph: 25.7 sec
    Standing ¼-mile: 16.8 sec @ 82 mph
    Top speed (C/D est): 120 mph
    Braking, 80-0 mph: 236 ft

    FUEL ECONOMY:
    C/D observed: 15-19 mpg



    Doug Dill

    1973 911E Coupe
    PCA #1987109761
    Early 911S Registry #548

  4. #4
    Early S Reg #1395 LongRanger's Avatar
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  5. #5
    Well, in a way, the marketeers were correct - they were just about 45 years too early and didn't have all the cool technology needed for today's automated manuals. I see GT3's in bumper-to-bumper traffic all the time... The manual transmission is fading pretty quickly
    Bill
    1969 911T - sold
    2001 911 Turbo - sold
    1996 911 C4S - returned
    1982 911SC - gone
    1960 356 Roadster - sold

  6. #6
    I should have mentioned that I see them in bumper-to-bumper traffic in Shanghai...
    Bill
    1969 911T - sold
    2001 911 Turbo - sold
    1996 911 C4S - returned
    1982 911SC - gone
    1960 356 Roadster - sold

  7. #7
    Member
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    Thanks for this Doug.

    Just my car.

    I've just put original steel wheels and hubcaps on to replace 6J Fuchs previous owner had added. They looked too big.

    Graham

  8. #8
    Senior Member Orbit's Avatar
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    No So Bad

    Lately I had the opportunity to drive around a 1968 911 L Sportomatic and they really have a bad reputation that they do not deserve. For me driving these older cars is not about technical discussions it is about how they make you feel when you are driving them. In the same day I drove the 1968 911 L Sporto I was also driving a 1988 959. When you are driving a 68 911 L Sporto the technology makes you smile as you adapt to its self imposed limits, driving a 959 the technology makes you apprehensive, as in, "I hope everything works because fixing it is going to take a month of Sundays if one of those diagnostic lights stays on".

    I never noticed the lack of the D2 on the shifter of the 68 911 L, it doesn't bother me. I did find out quickly about shifting without lifting off the throttle, that 2 liter engine with the 66mm crank throw revs up pretty quick! No flat shifting!

    How cool is that red ring of color in the Sporto Shift knob - did any other knob get something special like that?

    There seems to be a cloud over 911's that have any of the following: Sepia Brown paint , US Sealed beam headlights, Targas, or Sportomatic transmissions. To me a 73.5 CIS Sepia Brown Targa Sporto with sealed beam headlights would be really cool. If anybody has that car I would love to see you post a picture of it!

    Rodger@orbitracing.com
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  9. #9
    Member 1488 MrJTP2001's Avatar
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    I bought a '68 911 Sporto new and drove it for years. Loved it. Won lots of club event trophys. Overwhelmed at work, I let it sit for a while and I sold it. About 8 years ago I visited the individual I sold it to and was surprised, angry, sad, etc that he had let it go to waste. (turns out he had a stroke shortly after buying it) It sat in the gulf coast sun, uncovered for 12 years, etc. I bought it back, put it on a transporter and began. By the end of this year it will go in for final body work and bare metal repaint. Original color, Ozzi Blue. The engine has completed a total tear-down/rebuild and is waiting for the body to be finished. It is a matching numbers car and still has everything it left the factory with. Well, almost, I still need to find the right seats.
    Tony
    68 Sporto Project
    2016 Boxster

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