So i picked up an exhaust off an F355 from ebay yesterday. It has three inlets for exhaust from the engine. One for each bank, and a separate one that is supposed to be operated by vacuum. On the ferrari if came off, It opens at around 3000 rpm for extra flow apparently. It has me thinking that maybe the the normal 2 ports wouldn't be enough flow to support the 3800 without the third opening. I am trying to figure out a way to incorporate this third port into the rest of the exhaust in some way. I have an idea, although not sure how it will work out. The plan would be, since I am running separate manifolds, to run a "Y" off each exhaust bank and bring them together via another "Y". Then, before running into the third port, I have to figure out somewhat of a vacuum operated exhaust valve, or something i can hook a cable to and hook it in conjunction with the throttle cable so that it opens as the throttle opens. This is the area I am looking for help in. Anyone have any ideas?
Here is a link to a discussion I found online. Hopefully it will work:http://www.google.ca/url?sa...YSB1Boko6lElmuAiknyg