[Rawknees'Turbo]

Originally Posted by Hads930

Isn't this essentially what Porsche did with the 930? I removed mine when I had my engine out, as have most owners I would assume. It had an fresh air pump and injectors that were in the exhaust port of the cylinder head, remove the pump and injectors and plug the open port in the head. They did not make a cleaner engine, they just diluted the exhaust.

http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/458147-air-pump-removal.html

Nope, that is not how the 930 air pump worked (did not dilute the exhaust gasses). Injecting air into each exhaust manifold port raised the exhaust system temperature and helped to burn off unburnt, wasted fuel in the exhaust (something that the 930, K-Jetronic fuel system is notorious for), and with models that had catalytic converters, an air pipe was hooked to those, and the additional air supply from the pump increased the temperature of the catalyst and helped its operation.