A major improvement was made by adjusting the wastegate. It was definitely part of the problem...
Details on page 5, post #174
I still have the "hesitation/detonation under load (and in higher gears)" issue and I'm continuing to problem solve.
So, last week I finally got tuned. Unitonic Stage 1+. It's supposed to be boosting to 18psi, but I'm only getting 15psi. I did a boost leak test and found the jet suction pump behind the IM was leaking. I pulled it out, sealed it up with epoxy, put back in, and tested again for a boost leak. It held solid and I couldn't find any other leaks, but still only got 15psi.
Jet Suction Pump
Epoxyed and drying in front of the heater...
Boost leak tester...
I thought it could've been that I didn't install the b5 clip for my 034 billet block breather, so I installed that. Still the same. No change. I don't know what else to check. Is the N75 to blame?
On the plus side, since fixing the block breather and jet suction pump, my engine has never felt better.
But I want 18psi dammit...
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