WESMO COSWORTH Duratec 2.4

Cosworth has developed and built a 2.4 litre engine (2339ccm) with 280 hp specifically for Westermann Motorsport.

The basis of this engine is the 2.5-litre Ford Duratec engine with 2488ccm displacement, along with a 2.3 litre (2261ccm) crankshaft .

Advantage of 2.4 vs. 2.5 litres:

• lower piston speeds, 94mm to 100mm piston stroke
• significantly lighter crankshaft  (a balance shaft is not required)
• no VVC

Thus, we now have a solid, light and high-revving engine in the product range now that the 2.3 litre engines are no longer available.

This engine has been tested by experienced racing drivers extensively on international high-speed GP tracks such as Hockenheim, Monza, Mugello, as well as in 500km endurance races.

There are well-known companiess which offer engines based on a 2.4 litre architecture with 300 - 310 HP. We have deliberately decided against such a concept for a variety of reasons, ultimately deciding to go our own way with a durable circuit and road engine that has somewhat less power on paper, but offers significant advantages for our applications:

• Cosworth is one of the most-known premium manufacturers     --> higher resale value
• Cosworth has many proven years developing Duratec engines
• Attractive pricing
• No need to change differential ratios
• Longer intervals between rebuilds - i.e. lower operating costs
• Crankshafts from the 2.3 litre (Caterham CSR 200 and CSR 260) or ARROW 2.3 can be used
• Forged con rods from the Cosworth 2.3 litre
• Caterham compatible dry sump and cooling system (existing systems can be adopted)
• Flywheel, clutch and bellhousing are taken from Duratec base models (original Caterham parts)
• Camshafts and valve train from the 280 hp 2.3 Cosworth
• Compatible with Caterham or Cosworth roller barrel injection systems
• Fuel system and wiring harness from the Caterham R 300/400/500, C 400, CSR 260
• Exhaust system R 300/400/500, C 400, 420R, CSR 260 + 2.3 Cosworth with 280 hp
• Ready to Race engine mapping is supplied by Cosworth / WESMO. No further rolling road setup necessary.
• Hot test and break-in on a Cosworth dyno optionally possible.
• Engine setup to 95 octane fuel.
• Guaranteed spare parts supply through Westermann Motorsport
• Use in class 1 at the SMRC or Magnificant Seven Series with many drivers in each class.
• Affordable upgrade of a R 300/400/500, 420R, C400, CSR 260
• Cylinder head can be taken from the 2.0 or 2.3 (price reduction with a donor/core engine)