OK so I've just started to get to know my (auto) MY07 GT-B, and overall it's great, but there are a couple of niggles. I'm already planning to get some HD rear swaybar mounts as a priority, but I'm curious about the tune too.
Can the experts here please cast an eye over this dyno graph and tell me whether the torque hole between 2500 and 3000 rpm is normal? You can definitely feel it in traffic and it's a bit annoying TBH. I have seen others on here complain about something similar, but only in relation to stock tunes. Mine was retuned after a replacement turbo was installed; supposedly because the first one died when the previous owner overheated it. The installation notes for the new turbo say "leave to idle for min 1 minute to allow for cooling." I've read on here that the cooling system should operate even with the ignition off though - do you think the turbo shop might simply be unaware of how this works on our cars?
EDIT: Just remembered the previous owner said the turbo had VF30 wheels, though I guess the housing must be similar to VF46 to mate up to the stock dump etc. Could that explain the curve?