ok im in the process of fabbing a custom intake manifold and a custom TWIN tutrbo manifold for a 6 port s4 engine, im going with a agressive street port and more then likey a wolf 3d, now i only want to run like 8 psi to start with then once all the bugs are worked out i would like to eventually run around 12-14 psi, one of my questions is when i fabb the runners for hte intake manifold should i just make the the same lenght as the stockers, of should i kinda tune then to the turbos peak eff. i posted the com map below if anyone could help me with that it would be great, now secondly i am bassically running one turbo per rotor so should i run two waste gates or just a single? also i have read in a couple place that about 16 inchs long is ideal for turbo mani runners, how long should the wastegate runners be??


thanks a ton

--joe