Description
How do you fancy having a Cosworth Formula 1 butterfly throttle on display in your home or office? Well, exclusive to Modatek, we have for sale one of the Formula 1 butterfly throttles that was fitted to the Cosworth CK engine, and was raced in 1999 by Stewart Grand Prix.
Cosworth CK Engine
The CK engine was active in Formula 1 from 1999 to 2004. Designed and manufactured initially for Stewart Grand Prix in 1999, the CK engine represented a change in design philosophy from Cosworth as they sought to reestablish themselves as the top F1 engine manufacturer. The CK engine included numerous departures from previous Formula 1 engine designs, leading to what was possibly the lightest engine on the grid. By 2002, the CK was capable of speeds of up to 18,300 rpm with power in excess of 850 bhp.
Following a race-winning debut season with Stewart Grand Prix, the CK engine went on to power the team, now branded as Jaguar Racing, until the middle of 2002. A customer-spec version of the CK engine was supplied to Arrows Grand Prix in 2002 and to Minardi for the following year.
Cosworth Formula 1 Butterfly Throttle
The throttles on the 1999 Cosworth CK engine were butterfly valves (in subsequent years they were changed to barrel valves). The two targets for the butterfly throttle were to make it as light as possible for rapid reaction, and to make it as thin as possible so that it provided the least amount of obstruction when open.
Hence the butterfly valve itself was produced from carbon-fibre, which is light, thin and stiff. Each valve was connected to an aluminium coupling, which included plastic inserts to seal off the bearings. At the thinnest point, the valve is less than 2 mm thick.
You might be wondering why there are only two butterfly valves (it’s a V10 engine, so there should be five valves per bank) – that’s because it would have been connected up to another section containing the other three butterfly valves.
Details:
- Length= approx 195 mm
- Width = approx 28 mm
- Height = approx 15 mm
- Weight = 23 g
- Material = carbon-fibre valves, aluminium alloy couplings
