Hello,
Looking for some advice on what might be reducing my power in my first turbo LQ4 build.
Currently I have an LQ4 with an 80 mm VSracing turbo, I followed some of the guides on these forums for wideband VE tuning and I seem to have a decent air fuel ratio (hopefully).
The problem is now I'm looking to get into boosted regions, and power is getting pulled when I'm half throttle or more. Car feels strong with 1/4 throttle but the power drops once I add more throttle (log attached, with the tune file)
Does this look like a knock/timing issue? Or am I running into something else. I have knock retard going on, but way more power is being pulled than I expect. Once I'm past half throttle, the car feels like it has 150 hp.
Car: 87 Rx7
Trans: TR6060
Engine:
LQ4 with forged .020 over pistons
Deatchwerks fuel injectors and matching pump
AEM wideband
HPTuners 2 Bar SD OS on a red/blue PCM
Thanks in advance if you can provide any assistance.