1jz single turbo problems...

turbulance_cressida

New Member
Sep 28, 2006
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brooklyn,ny
I got a 1j single turbo (Precision DBB 67) and for some odd reason the turbo started making some strange sound like the wheel is grinding.. but when removed down pipe everything looks fine. My current setup is 440 with DBB with aem wideband... car is also untune so I know by driving it can cause problems. I'm just looking for a little advice on what could cause my turbo to sound like that.