Turbo in hand, I've to figure out how this beast is going to be mounted.
looking into options for a header, i find that the only viable off the shelf reliability might be the
ZZP header.
it will require an additional adapter between the header and block to obstruct the SAI channels :
Manifold Spacer
ZZP has this posted on the spacer page on the order of parts related to the L61
Head >
ZZP exhaust manifold gasket > Spacer Plate > RTV > Turbo Manifold.
Although I fantasize about having an UEL header, a custom manifold is not yet out of the question... cost is to be determined.
If I were to go this route i would imagine that I'd need to figure out / calculate optimized lengths that would allow for back pressure pulses to overlap on exit to and/or through the turbo. still researching...
also... ARP studs ?!?! I'll be planning the engine testing and preparatory upgrades this spring : injectors, fuel pump, & Studs??
again, still doing the research and a few times i have been pointed back to Nic Brunet's
Ecotec and a couple times something to the effect mentioned
here (full video
link with Lisa Kubo)