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tonypeoni tonypeoni is offline
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Join Date: Apr 2006
Location: Greenwood, IN
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911 turbo 86-89

I would like to start a thread to discuss and detail the differences the 86/89 cars have over the earlier years. This was no doubt in reaction to the U.S. emission standards but also to avoid litigation due to the instantaneous turbo boost. I would very much appreciate this not turning into a shouting match over what year is better.


Road & Track 1986
“In its latest state, the 911 Turbo has had most of its rough edges smoothed. The engine, Porsche’s venerable, air-cooled flat-6 has been “smogged”, as we say, meaning that it meets emission requirements in all 50 states. A bit of diddling with the electronic control module and the fitting of a catalytic converter took care of that technicality without much loss in horsepower and performance. Intercooled, the 3299-cc, KKK turbocharged, Bosch fuel injected boxer motor develops 282 bhp at 5500 rpm, even in U.S. trim. And while it doesn’t have the same punch-in-the-stomach throttle response of its predecessors, it’s brawny enough to send the present-day Turbo scrambling from 0-60 mph in 5.0 seconds and to the quarter mile in just 13.4 seconds.”

“At the test track, we discovered that the 911 Turbo will still give any car a run for its money, hustling to 60 mph from rest in 5.0 seconds. The time is the same for the 1978 Turbo, but the manner of getting to speed is noticeably different: Gone is the slow movement off the line that was followed by the punch-in-the-back turbo effect. The 1986 car moves off smartly and the speed just continues to build-quickly-with an only slightly detectable boost from the turbo. The means are different, the end is the same.”


Car&Driver 1986
“Nevertheless, if 1979 was a great year for turbochared 911s, 1986 ought to be even better, right? Twenty-nine more horses, fatter tires, and six years of chassis development could only make things positively dreamy.”

“With a searing 0-to-60 mph of 4.6 seconds and clocking of 13.1 seconds at 105-mph through the quarter-mile, the 911 Turbo is most assuredly this season’s acceleration ace-providing you’re willing to resort to rough, wheel-spinning, drag-race starts. On the road though, these numbers pale next to the Turbo’s boost-lag arthritis. Even the healthier of our two test cars took forever to spin its turbo to liftoff speed. Once it was up and running, it was plenty strong, but it just didn’t awe us the way the old 930 used to.”

Still looking, but I have yet to find a period article (R&T, C&D, etc.) that refers to post-1986, 911 Turbos as 930’s. Anyone?






Last edited by tonypeoni; 04-28-2014 at 06:39 AM..
Old 04-27-2014, 08:53 PM
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