Porsche Cayman 981 GT4 Racing version

Official photos: 2015 November 18
Premiere: 2015 November 18, Los Angeles Auto Show

Porsche Cayman GT4 Clubsport
 © Porsche

Technical specification and comparison

Modification Engine kW lb-ft Nm Gearbox 60 mph 100 km/h 160 km/h 200 km/h mph km/h DIN kg DIN lb W/lb W/kg Nord-
schleife
Cayman 981 GT4 Racing 3.8B6 283 309 420 PDK 6-speed 1300 2866 98.7 218
Cayman 981 GT4 Street 3.8B6 283 309 420 manual 6-speed 4.2 sec. 4.4 sec. 9.3 sec. 14.5 sec. 183 295 1340 2954 95.8 211 7:40...45
911 991 GT3 3.8B6 350 324 440 PDK 7-speed 3.3 sec. 3.5 sec. 7.5 sec. 11.4 sec. 196 315 1430 3153 111 245 7:30
DIN weight = car with 90% fuel, no driver, no cargo. Weight of German versions with standard equipment.

Speaking of mid-engined Porsche racing cars - as the 919 Hybrid was not made available for customer racing teams, the RS Spyder was the last mid-engined racing car that Porsche offered to its customers until the Cayman GT4 racing car.

The car was confusingly named as the GT4 Clubsport. Club sport versions were always street legal, but not the GT4 CS. The difference between professional racing and amateur club racing was that you could drive your racer to the Porsche club sport events and back home.

The 981 GT4 racing version had the same 911 3.8-litre 283 kW engine as the street legal GT4. The racing version GT4 was available only with a unique 6-speed PDK gearbox (typical PDK of the time had 7 speeds) and was solely destined for private racing drivers (Porsche works teams use sequential gearboxes for racing). The suspension was adapted from the 911 991 GT3 Cup car. The size of the standard fuel tank was 90 litres. FIA-approved FT3 tanks were optionally available in 70- and 100-litre sizes. Although the 18" wheels and tyres of the racing GT4 were much lighter than the 20" units on the street version, at 1300 kg/2866 lb, the stripped out racing version was only 40 kg/88 lb lighter than the street legal version because of the full safety cage and heavier automatic gearbox. Like all racing Porsches, the racing version of the GT4 was a Porsche Motorsport product (ordered directly, not from a Porsche center).

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The forged wheels are fitted with 25/64-18 Michelin slicks at the front and 27/68-18 at the rear. The reliable and cost-effective steel brake discs measure 380 mm front and rear. © Porsche
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2018 Intercontinental GT Challenge, round 4, California 8 Hours, Laguna Seca, Porsche Cayman GT4, Spencer Pumpelly, Derek DeBoer, Sean Gibbons
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Intercontinental GT Challenge, round 4, California 8 Hours, Laguna Seca, Porsche Cayman GT4, Chris Bellomo, Tom Dyer, Rob Orcutt
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The 981 GT4 racing car was a sales success for Porsche Motorsport with 421 cars made.

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2019 Nürburgring, Porsche Cayman GT4 with wider body
2019 Nürburgring 24 hour race SP6 class winner (27th overall). The car has a non-stock widebody kit and was driven by Achim Wawer, Michael Grassl, Ivan Jacoma, Claudius Karch.© Porsche

© James Herne / Stuttcars.com


Continue to 981 GT4 rally car or to 982 GT4 racing car
Anniversaries
Sep, 23 – 16th birthday of the Boxster 987 (2004)
Sep, 25 – 18th birthday of the Cayenne (2002)
Sep, 28 – 32nd birthday of the 964 (1988)
Oct, 11 – 33rd birthday of the 2708 (1987)
Oct, 29 – 80th birthday of Hans-Peter Porsche (1940)