I got my 83 280zxt started again after cranking on it a while and it ran better for some reason?? I can rev it now but not past 5.5k and my boost gauge isn't doing @!#$ and i don't hear it either(the turbo that is) The guy said he bought a new one and put it on and it was working?? but it sat for 2 months, did it freeze? Well my boost gage was moving some what i hit the gas and it moved up barely and then the psi would go into negitive. So . hmm... mabey turbos aren't as loud as i think? mabey it works and i don't know about it?