12 5.0 e85 what compression for 19 psi

[Turbo900rr]

Ok I have a 12 gt running 12 psi on stock internals. I know borrowed time. I'm building a motor over the winter and my deciding/limiting factor is the procharger d1sc. At 7 k rpms it will put out approximately 19 psi. I was thinking with a forged motor I can still get away with the factory 11:1 cr. Maybe even a bit higher like 11.5:1 What do you guys think? Also it's the stage 2 intercooler so ait's should be reasonable.

 

[Bud]

I was running 13psi from a PD blower on my stock internals on E85. My order is in for an 11 to 1 motor with L&M with plans to throw 20psi at it with twin 60's. I'm not sure if it was a smart idea or not yet. At my elevation and using e85 I'm hoping it will be safe and make tons of power. I'm hoping that if my compression choice was too high my tuner can adjust dynamic compression with the tivct some to help out.