With just a flash on my IX I get consistently ~80% IDC numbers at 7000rpm with evoscan.

 

What load values are you calculating?

 

the reason i ask is that i haven't seen anyone hold that much boost w/o massive tapering. what are your mods again? what is your boost cut set at? it's not that i don't believe your idc values, because mine is even more saturated then yours going up to 115% peak, albeit i believe there is a 10-15% error descrepency in this readings. if you care to post your ipw vs. rpm logs that would help too.

 

My mods are a Vishnu Subzero mail-in flash. The car is otherwise stock. I can easily hit 20+ psi at 7000 rpm on the stock boost gauge. Vishnu and Works both claim 20 psi at 7000 rpm, and both of them modify the stock boost lines. I don't know exactly what Works does, but its easy enough to see on the Vishnu website that they remove the restrictor pill in front of the BCS and put a *bleeder* (to atmosphere) in its place. I guess there is the issue of whether the stock IX turbo can support 20 psi at 7000 rpm with the wastegate shut. Assuming that my boost gauge is accurate, then this is one data point that says it can support 20 psi at 7000 rpm. I am looking into getting one of the Omori 45 mm boost gauges that includes a pressure sender that is mounted in the engine compartment. Omori claims its "very accurate".