I have an r33 gtst rb25det skyline i took it in to get dyno tuned after installing a new engine
the mechanic i took it to is trying to find a problem with why its so gutless but dosnt realy know what it could be. its got a kkr t4 turbo thats shit i need a new one but that dosnt explain why its only making 90 kw when my old engine was making 180kw its a series 1 but with a seris 2 engine iv got a nistune board brand new splitfire coils brand new fule pump full service new oil and all filters its got a new clutch new everything exept turbo why is it running like shit. the turbo is still good just if everyone thinks its that iv tried it with a stock turbo but have the same problem.
please help meeeeeee
