Description
We’ve got a limited number of actual Cosworth Formula 1 piston ring packs for sale, as raced in the 2013 Formula 1 season in the Cosworth CA2010 engine. Each ring pack contains a compression ring and oil control ring, and looks great displayed on its own or fitted to one of our Cosworth CA2010 Formula 1 pistons.
Cosworth CA Engine
The final Formula 1 engine from Cosworth, codenamed the CA, took all of the knowledge gained from decades of competition in F1 and turned this know-how into probably one of the best Cosworth engines ever. The CA was introduced in 2006 with Williams, and saw Cosworth return to the production of V8 normally aspirated engines that began with the DFV back in 1967. Capable of 20,000 rpm, the CA became the new benchmark for F1 powerplants.
After a brief sabbatical, Cosworth returned to the grid in 2010 with an updated version of the CA. By now the rules had dropped the maximum speed to 18,000 rpm. Nevertheless, the CA2010 engine was still able to produce in excess of 775 bhp. Consequently, the CA2010 was the ideal choice for both Williams and for the three new teams in F1 (Virgin Racing, Lotus Racing and Hispania Racing).
The CA2010 engine was raced for four season, bowing out at the end of 2013 after powering the rebranded Marussia team.
You can watch a short video we put together of a Cosworth CA2010 engine being pushed through its paces on Cosworth’s transient dyno at speeds of up to 18,000 rpm – just click here.
Cosworth Formula 1 Piston Ring Pack
At the heart of the CA2010 engine were eight highly-stressed pistons, all moving up and down the bores at over 300 times per second. The only components that were stopping the combustion gases from escaping into the crankcase were the compression rings, whilst the 3-piece oil control rings have to prevent the gaseous mix of oil and air from travelling in the opposite direction.
Even though the engine runs at incredibly high speeds, there is only a single compression ring that is just 0.65 mm thick. Likewise, the oil control ring, consisting of two rails and a wave-form expander ring, measures just 2.1 mm in thickness.
Details:
- Diameter = 98 mm
- Total thickness = 2.75 mm
- Weight = 8 g














