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Grp A impreza 34mm restrictor


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Hi all

First post looking for some advice quick run down 2ltr vf34 96 gc8 fully built motor standard yellow side feed injectors link g4+ v1/2, I've tuned road/track car's for a few years first time with restrictor any ideas how to make the most of it, I've only managed 245bhp 240ftlb at 1bar and it's not picking up quick enough is there a certain way to tune restrictor engine's in terms of ignition or is it as normal find peak power an that's your lot? Without restrictor made 296bhp 282ftlb any help or feedback much obliged I'm scratching my head a lot at the min reluctant to push more boost before gaining at lower numbers, any estimates on power out puts expected with restrictor? 

Many thanks Adam 

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