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Old September 15th 2020, 18:48
Steve C's Avatar
Steve C Steve C is offline
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Join Date: Sep 2002
Location: Sydney, Australia
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Hi

I've been talking to my local Subaru tuner and AWD Subarus with similar specification motors to mine are making 360 - 380 kW at all four wheels.

I've been thinking that there must be a restriction somewhere in my setup, I'm running a Varex muffler and a water to air intercooler.

My ECU has an exhaust pressure map sensor so the other night my son and I did some extensiveness testing.

So 290kpa inlet, 350kpa exhaust On 25psi (eboost), so 1:1.2 which is quite acceptable.

We also checked pressure drop across the intercooler which was about 3 psi.

So now that I'm confident that my setup is not causing issues I'm going back for a touchup tune with some more timing and boost as suggested by the Subaru tuner.

Steve
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