Originally Posted by mtxpert
Remember these are direct injection injectors not regular injectors, much different beast. Also in order to take advantage you will have to upgrade the high pressure fuel pump (HPFP) by going either with duals like the BMW and Mercedes or a bigger surface area on the piston. I follow the Mazdaspeed guys because their platform came out in 2006, they've given getting enough fuel from the DI setup and are now piggybacking PI on top of it, the same thing I'm currently installing this week on my Flex. I'll be able to report back some finding on my transverse ecoboost V6 on stock (smaller than yours) turbos with E85 within 2 weeks. Hoping to see well over 400WHP/450WTQ on my baby GT15's on E85 - that HP level got me to mid 12's on my Flex with my nitrous setup.
Sorry, should have been more specific, I work for a diesel fuel injection manufacturer. We are obviously well versed in DI. I know what modifications can be done to increase fuel output, but you have to balance those as you don't want to begin to impinge on the walls or the piston.
The research is what would be cost prohibitive. The tips we can have manufactured for relatively cheap. But the overall cost for sales in maybe the hundreds per year is not worth it.