Titanium -
I was planning on keeping the aux sleeves anyways. everything i read said that they are a good thing to keep on an N/A build.
Regarding the MS, I have already built and tuned an MS-II v3.0 running the MS-II Extra code for my DD car (92 Sundance Duster with an 01 eclipse v6 running EDIS,mid to high 20s mpg mixed driving, close to or above 30mpg if i blow the whole tank on the highway and ~200ish WHP, 14.712@92.99mph with a crappy 2.1 60')
Why would brigeporting the Aux ports hurt daily driving? don't they open at 4000+rpms? I was thinking a bridge on the aux ports for higher RPM flow while retaining a streetport on the primary and secondary ports...
Also, would running a 4-port center housing for larger primaries adversely affect low end power?
Balancing is being figured in to the build due to the mix-and-match nature of the motor
a Miata diff will fit the N/A rear end and axles? that makes life simpler