Tidig 944 turbomotor kontra sen

[michael rasmussen]

Jag har kylslinga på min 87:a en svensk såld bil om det nu har ngn betydelse.

[Erol]

Jag har kylslinga på min 87:a en svensk såld bil om det nu har ngn betydelse.

Nån kan ha bytt låda på din bil under årens lopp eller monterat kylslinga, kanske rent av fanns som tillbehör.

Enligt Wikipedia (som ofta har rätt) så verkar våra spekulationer/teorier stämma, kylslingan kom -86, försvann -87 och kom sedan tillbaka på Turbo S -88 för att sedan bli standard -89.

For the 1986 model year
Porsche introduced the 944 Turbo, known internally as the 951. This had a turbocharged and intercooled version of the standard car's engine that produced 220 hp (164 kW) (217 hp (162 kW) in the US) at 6000 rpm. The turbo was the world's first car using a ceramic port liner to retain exhaust gas temperature and new forged pistons. The Turbo also featured several other changes, such as improved aerodynamics, a strengthened gearbox with a different final drive ratio, standard external oil coolers for both the engine and transmission, standard 16 inch wheels (optional forged Fuchs wheels), and a slightly stiffer suspension (Progressive springs) to handle the extra weight. Major engine component revisions, more than thirty in all, were made to the 951 to compensate for increased internal loads and heat.

Changes occurred for the 1987 model year.
On the interior, the 1987 944 Turbo became the first production car in the world to be equipped with driver and passenger side air bags as standard equipment. A low oil level light was added to the dash as well as a 180 mph speedometer as opposed to the 170 mph speedometer on the 1986 model Turbos. Also included is the deletion of the transmission oil cooler, and a change in suspension control arms in order to reduce the car's scrub radius. The engine remained the same M44/51 power-plant as in the 1986 model.

In 1988, Porsche introduced the Turbo S .
The 944 Turbo S had a more powerful engine (designation number M44/52) with 250 hp (186 kW) and 250 lb·ft (340 N·m) torque (standard 944 Turbo 217 hp (162 kW) and 243 lb·ft (329 N·m)). This higher output was achieved by using a larger K26-8 turbine housing and revised engine mapping which allowed maintaining maximum boost until 5800 rpm as compared to the standard 944 Turbo the boost would decrease from 1.75 bar at 3000 rpm to 1.52 bar at 5800 rpm. In June 1988, Car and Driver tested the 944 Turbo S and achieved a 0-60 mph time of 5.5 seconds and a quarter-mile time of 13.9 seconds at 101 mph (163 km/h). Top speed was factory rated at 162 mph (261 km/h).

The 944 Turbo S's suspension was the then state-of-the-art "M030" option consisting of Koni adjustable shocks front and rear, with ride height adjusting threaded collars on the front struts, progressive rate springs, larger hollow rear anti-roll/torsion bars, harder durometer suspension bushings throughout, larger 26.8 mm (1.1 in) hollow anti-roll/torsion bars at the front, and chassis stiffening brackets in the front frame rails. The air conditioning dryer lines are routed differently to clear the front frame brace on the driver's side. The 944 Turbo S wheels, known as the Club Sport design, were 16-inch forged and flat-dished, similar to the Design 90 wheel. Wheel widths were 7 inches (178 mm) in the front, and 9 inches (229 mm) in the rear with 52mm offset; sizes of the Z-rated tires were 225/50 in the front and 245/45 in the rear. The front and rear fender edges were rolled to accommodate the larger wheels. The manual transmission (case code designation: AOR) featured an higher friction clutch disc setup, and an external cooler, and also featured a limited slip differential with a 40% lockup setting. The Turbo S front brakes were borrowed from the Porsche 928 S4, with larger 4-piston fixed calipers and 12" inch discs; rear brakes remained the same as a standard Turbo. ABS also came standard.

In 1989 and later production, the 'S' designation was dropped from the 944 Turbo S, and all 944 Turbos featured the M44/52 package as standard.

[mojo158]

Hej,

Åter igen, tack för svaren. Enligt den engelska versionen av Wikipedia så fanns inte oljekylare på 87:orna. Misstänker att oljekylaren återkom med turbo s, alltså med diffspärren som någon skrev.

/Staffan

[TurboS]

Tror växellådorna är likadana på alla turbobilar förutom att vissa hade diffbroms och vissa inte hade det.
Sen varför dom plockade bort oljekylaren var nog mer en fråga om att den inte behövdes.

Rätta mig om jag har fel dock.

Turbo S och senare turbo modeller fick tillbaka oljekylaren.

[Mårten]

Jag hade som sagt kylslinga på min turbos orginallåda och det är INTE en Turbo S och jag hade heller ingen diff... men en -88 är det ju...

[Peedster]

Jag har en 1987 med diff och oljeslinga, dock option 220. Standard hade inte kylslingan.

/P