When we lean out the a/f around the 4500 to 6000 range the torque climb to about 440.ForcedInduction said:Hmm pretty strange, my 1JZ dynoed 450 rwhp and rwtq on 20 psi and pump. Pretty similar turbo to yours too. Where did all your torque go?
I am not a friend of lean so we brought it down to rich and sacrifice a bit of torque.