Anything under 3000rpm is not laggy at all. The factory car makes full torque at ~2000rpm, so, you could assume you would be seeing positive manifold pressure at 1500rpm - even with this bigger turbo
With the 8 close ratios in the ZF8, I would be surprised if you ever went lower than 3000rpm at...
The manual upshift in the A90 arw lightning quick - but ensure you have traction control OFF
The vehicle traction control throttle, and so any upshift with less than 100% throttle are slow and doughy.
Turn it all off for whipcrack shifts and downshift blips that are lightning fast - even...
Thanks mate that's awesome. I knew there was one, I was wondering where old mate got confused haha. Great pics! I might pm you about some measurements from the OE dump pipe if that's ok?