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Old Yesterday, 11:27 AM   #1
Scooby Specialist
Member#: 157002
Join Date: Aug 2007
Chapter/Region: South East
Location: Jacksonville, FL
2011 STI
Satin White Pearl

Default Wastegate springs for TurboSmart CompGate 40?

I have a Dominator 2.5XT-R with a GrimmSpeed EWG setup, running a CompGate 40. Built motor, built heads, etc. We found that on the dyno the spring was not enough and boost was tapering from 26psi to 21psi by redline.

I need to get stiffer springs, but I am not really sure how to determine which springs to run. On 93 octane the tune is setup for 21psi and on E85 it's 26-27psi.

I read through the chart that TurboSmart provides but it wasn't clear to me. Does anyone know how to best set this up?
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