Does anyone know of any throttle bodies that can be swapped over to the SHO? Perhaps an aftermarket 3.7 Mustang's 73mm throttle body? The reason I ask is because I sealed the throttle body motor cap with a vacuum cap (the cap that a lot of us have lost) and a replacement cap, the vacuum cap collapses under idle / vacuum and gets inflated under boost. This tells me that everyone that has lost the cap is essentially suffering a vacuum/boost leak at the throttle body plate seal.
I looked at the F-150 EcoBoost and Mustang EcoBoost throttle bodies and they all use a model of TB that has a sealed motor (the plastic is a slab side design, no removable cap). The model of motor that we are using was used as far back as the 2005 Mustang that was never really intended for a turbo application. GM's GTDI LNF throttle body (used as far back as 2006) is the same style as the F-150/Mustang EcoBoost throttle body, so there's no chance of a boost leak like ours.
