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So simple solution would be to weld a pressure valve somwhere in the exhaust to bleed off backpressure at high rpm

get rid of that stock exhaust setup its causing your restriction the turbos themselves create backpressure your only doubling it with full exhaust i went with custom 3" all the way out you may also want to get meth injection you can also upgrade the compressor wheel on the turbos

thats great news and thoes numbers are promising what were your iats looking like on the e85

iat's are a lil high does your bumper support block the intercooler if so cut holes in that sumbi**h get more air past the intercooler and iats should drop you dnt wanna be above 110f iat you can test if your iats at the issue by iceing the intake pipe do a few pulls and see if you start...

Sweet sounds like you already have addressed the problem iv been crunching numbers and so when i saw that you were getting boost drop of a few psi at higher rpm confirmed it a little for me. Our heads are similar to the v-tec so at high Rpm they really need to breath. if your boost is set to...

are you planning to use an ebc to raise boost at higher rpm to compensate for the loss in air density of the smaller turbos that will eliminate the boost drop off above 4k rpm. Correct me if im wrong but because the ecoboost turbos flow lower cfm's that the procharger we will have to run...