Hi! And welcome to another addition of “The Anatomy Of”. In this article I shall be delving into quite possibly my favourite racing series and car, The “Porsche Carrera Cup GB” and the “991 911 GT3 Cup car” I have a real soft spot for Porsche which may become evident in future posts, but if I ever won the lottery the Porsche dealership would be my first port of call even before the estate agents!
These cars are just simply stunning from all angles in my eyes. For me it was actually quite hard to capture the cars and their true Motorsport heritage as there’s just so much to take in. I will try and give you the insiders view to these amazing machines but I’m sure I will have missed something!
The 991’s chassis is actually 100mm longer than that 997. This was to provide high precision and more stability at speed and on the limit during races. Porsche also redesigned the single-piece race wheels so that once paired up with the new Michelin tyres the front axle grew to 27cm (2cm wider than the 997 setup) and the rear axle grew to 31cm (1cm wider than the 997 setup)
I wish I could have taken more indepth photos of the suspension setups but due to how competitive this series is I also didn’t want to show any settings that the Motorbase team (https://motorbaseperformance.co.uk) use. So here’s the technical low down taken from www.porsche.com:
McPherson suspension strut, adjustable in height, camber and track; forged strut with optimised stiffness, two-shear connection, heavy duty spherical bearings; wheel hub with centre lock; racing shock absorbers; forged supporting mounts; adjustable double-blade type anti-roll bar; power steering with electro-hydraulic pressure feed.
Multilink suspension, adjustable in height, camber and track; forged strut with optimised stiffness, two-shear connection, heavy duty spherical bearings; wheel hub with centre lock; non-adjustable racing shock absorbers; forged supporting mounts; adjustable double-blade type anti-roll bar.
Two independent brake circuits for front and rear axle; adjustable via brake balance system. Brake discs, inner-vented and slotted, 380 mm diameter; racing brake pads, optimised ventilation ducting.
Engineers gave the further improvement of driver safety high priority again in the development of the new Cup vehicle. Drivers are protected by a redesigned safety cage and race seat, specially moulded around the head and shoulders and individually adjustable with the help of a padding system.
A rescue hatch in the roof provides easy access for primary medical attention and for the extrication of the driver.
As with the road-legal car, the body of the new 911 GT3 Cup combines highest rigidity with low weight thanks to its smart aluminium-steel composite construction. The latest 911 GT3 Cup weighs in at just 1,175 kilograms.
Engine and Gearbox:
The engine in the Porsche 911 GT3 Cup is a 3.8-litre, six-cylinder boxer engine.
Thanks to the weight-optimised modular race exhaust system, the vehicle generates 460 hp (338 kW) at 7,500 revs per minute, ten horsepower more than its predecessor.
Power is delivered to the rear axle via a race clutch and a Porsche Motorsport designed six-speed dog-type gearbox with a mechanical limited slip differential. For the first time in a Porsche cup race car, gear shifting is performed with paddle shifts on the steering wheel.
And to be expected these cars don’t just run on Shell V power! They use a 101/102 RON and 89/90 MON unleaded gasoline with approximately 2% oxygen content that meets the current FIA ‘Appendix J’ gasoline specifications
It’s all well and good having this amazingly setup car but if the person in control of it doesn’t know what they’re doing then it’s all a waste! There’s two drivers in the Motorbase Carrera Cup team one of them being Lewis Plato. Here’s some of his current career highlights which I’m sure will grow and grow over the years to come!
Porsche Carrera Cup GB – 2nd in Rookie Championship, 8th in Overall Championship
British GT – 10th in Championship
Radical Endurance Championship – 2nd in Championship
And finally with that all combined together you have man and machine in perfect harmony on track.
And with that this concludes this addition of “The Anatomy of” As always I really hope you liked the article and found it informative but also visually interesting! If you would like to feature on the “Anatomy of” then please feel free to message me on my instagram page dan_martin_media and we can discuss a feature!
Thanks again! Dan