QED Motor Sport
			Rover K > Components > D2H Throttle Bodies
	Our direct to head throttle bodies can be fitted in two different configurations to suit constraints of budget or space. Compact fitment, 42mm bore This configuration was the originally intention when the throttle bodies were designed and is the most compact and lightweight system available on the market today. As well as the inherent space saving of direct to head throttle bodies this configuration uses a more compact, 'Pico' design of injector, which allows the fuel rail to be positioned further back than would be possible with standard injectors. In this configuration the air trumpets are made from carbon fibre and with the shortest of these trumpets the fitted length from the face of the cylinder head to the ends of the trumpets is less than 7 inches. Budget fitment, 45mm bore It is also possible to use direct to head throttle bodies with the standard type of injectors. This obviously makes the system as a whole slightly cheaper. However because the standard injectors are longer than the Pico variety the fuel rail is now further forward and will foul on the air filter backplate.To get around this problem a spacer is fitted between the throttle bodies and the trumpets. To further reduce the cost of this system the spacers have a tapered bore which enables the fitment of a less expensive, 45mm, alloy trumpet. When fitted with the shortest alloy trumpets available the fitted length from the face of the cylinder head to the ends of the trumpets is about 7½ inches