TwinTurbo.NET: Nissan 300ZX forum - I have the GT 525 that I bought about 10 years ago from Z1,
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Subject I have the GT 525 that I bought about 10 years ago from Z1,
     
Posted by Denis on March 04, 2023 at 11:31 AM
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In Reply To Z1’s 525+ posted by Mike@ZSpeed on March 04, 2023 at 06:34 AM
     
Message They use Garrett housings and parts, but machine out the compressor housing to hold a larger turbine wheel. At the time they offered a .54 AR, which is what I got so as to maintain a lower RPM spool-up. I have about 40K miles on them and they work great. Quick spool at about 2800 RPM and a strong build up to max @ 5000 RPM. Now these number are with stock intake pipes and cat back Borla. Running 20psi & 100 octane.

     
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