ok i have a jdm gsr turbo with 450cc injectors tuned ecu on 8 psi my car will go all the wat to 5k and then looses power and if i keep holding it to the ground then it will go and looses power again. my turbo has real bad shaft play and im thinking the problem is the fins in the turbo hitting the side of the houseing and just amking it loose boost. do yall think that is the problem