That changes EVERYTHING. For an SPI you will need to do a custom turbo. Its not pointless unless YOU think it is. I believe the escort forums will have a bit more thorough info for the SPI but there are plenty of helpful chaps here as well. I would first look to making sure yours isnt one of the ones that drops a valve. Do an extensive investigation of your current engine condition to include compression tests. I'd say look to ebay only for piping. The other pieces, get from a reputable place. And dont overlook the classified section.
thanks blkthunder, my split port is the original engine that came with my car back in 2000, its got roughly 87k miles and it runs really good, the most ive done to the engine is CAI, msd coil, intake runner shorted open, and a fuel controller. its a pretty solid engine for the most part, and i believe ( or would really like to believe) that ive probably got 20 more horsepower over stock.
its the # 4 valve i believe that gets dropped but i haven't encountered anything like that so before i even buy any turbo components i'm gonna probably rebuild the head.
there are a few boosted SPI's hanging around.
hope they chime in.
yeah, that would be amazing if i could get in touch with someone who has done this major upgrade, i have friends who are gonna help me who know 30x more than i do about turbo-charging, but id like to get the info from a focal jet guy who knows what hes talking about and knows focuses (or foci).