Ford Cosworth YB Turbo Direct-to-Head throttle bodies

High-performance individual throttle body inlet system for the Ford Cosworth YB Engine. This inlet setup replaces the exiting inlet manifold with our direct-to-head throttle bodies and turbo plenum. The inlet system fits the engines found in the Sierra Cosworth, Saphire Cosworth, and Escort Cosworth. They are designed to fit within the confines of the original engine bay in both the Sierra and Escort body shells without needing to make any cuts.

The plenum can also be ordered to suit Escort Cosworth’s with Air Conditions. The plenum has cut outs in to allow for the A/C pipework through the bulk head.

The system has been designed around our Direct-to-head throttle bodies and plenum chamber capable of withstanding boost pressures up to 5 bar, with no reduction in flow at high RPMs. The ITB system improves throttle response both on and off boost.

The plenum inlet has 3″ (70mm) hose fitting for linking to the intercooler.

The inlet consists of a set of our 48mm or 50mm individual throttle bodies with integrated injector mountings which are mounted on a billet head mating flange.

A plenum with an additional 4 injectors can be ordered which will make an 8 injectors setup possible.