Until 1986, all 911 Carreras were equipped with the same 915 gearbox as the 911 SC. While the 930/20 and 26s offered 284 Nm, the 930/21 and 25s are down by 19 Nm, only pushing out 265 Nm.īut what’s the elephant in the room? It is the gearbox.
But the main difference between these engines, is the torque figure. Low compression models need 6.5 seconds and will only achieve a top speed of 149 mph. 0 to 62 mph takes only 6.1 seconds and the 3.2 could accelerate up to 152 mph. They deliver sporty performance, even by today’s standards. In Germany, the 930/20 engine continued over the whole lifespan of the Carrera 3.2, while Switzerland got the 930/26 engines from 1985 until 1989, offering the same power output as the 930/20, but having an auxiliary air pump, blowing into the exhaust ports.įor that reason, european 911 Carrera 3.2s with 930/20 and 26 engines, producing 231 hp are much desired. The compression ratio remained at a constant 9.5 : 1 for 930/21 and 25 engines. Hence, from 1987 onwards, every US, Japanese and Canadian Carrera got the 930/25 engine with 217 hp. In 1986, the low compression engine was redesigned again. The engine for these markets was called 930/21 and provided 207 hp at 5,900 rpm. Whereas for the German 911 Carrera 3.2s cats were optional, the US models for example had a catalytic converter als standard. Very restrictive emission laws in some markets required Porsche to introduce catalytic converters for the Carrera 3.2. The most desired 911 Carrera 3.2’s are European cars without a catalytic converter Moreover, the 911 Carrerea 3.2 got hydraulic timing chain tensioners and an improved oil cooler. Combined with the then-new shut off on the overrun, the 911 Carrerea 3.2 was much improved on both, emissions and gas mileage. Therefore the mechanically controlled K-Jetronic was replaced by the new L-Jetronic with the electronic Bosch Motronic (DME), which was the first system that could handle the injection and ignition via a single device. Of course, the engine had to become more powerful as well. According to Porsche themselves, 80 per cent of the engine had been completely redeveloped.īeing Porsche, the goal wasn’t just making the 911 more polar bear-friendly. As a result, the 930/20 engine pushed out 231 hp at 5,900 rpm while delivering 284 Nm of torque at 4,800 rpm, the 930/21 had to deal with 207 hp and 265 Nm. The six-cylinder boxer engine now had a capacity of 3,164 cm³ due to a bore increased by 4 mm, the crankshaft of the 3.3 Turbo and a compression ratio of 10.3 : 1 in the 930/20 engine, in the US, Canada and Japan, the Carrera was offered with the lower compression 930/21 engine, offering 9.5 : 1. The market launch of the 911 SC’s successor dates to the year 1984. As a result, Porsche developed the last hurrah of the 911 G-series: the 911 Carrera 3.2. In their main sales markets USA, Japan and Europe, tighter emission rules from 1983 onwards meant, that the engineers in Zuffenhause had to redesign their engines. After ten years of production, Porsche was facing new challenges by the law.
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