TwinTurbo.NET: Nissan 300ZX forum - Honestly, we have access to a handful of highly-skilled
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Subject Honestly, we have access to a handful of highly-skilled
     
Posted by Ghoztt (MD) on June 15, 2022 at 1:55 PM
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In Reply To What internals are the weak point? posted by Mike@ZSpeed on June 15, 2022 at 01:29 PM
     
Message and experienced tuners that could probably be more accurate in shedding light on what tends to fail first like Specialty Z, Harry Ztuner, etc. Nissan went all out on the VG30DETT, so the rotating assembly is really solid. What tends to fail boils down to the tune itself putting certain stress on certain areas. The stock girdles are known to fret and twist at higher level of power (800~1000whp+), but aside from that most of the parts can handle it as long as it's a safe tune that doesn't hit any fueling anomalies. Issues with pistons, rods , bearings, wrist pins, and the like are more about oiling and detonation failures than actual engineering limits. Building engines is more about insurance for most street cars.

1993 Nissan 300ZX Slicktop (Oxford Gray Metallic)
1991 Nissan 300ZX Slicktop Track-Star
1992 Nissan Skyline GT-R (Gunmetal Gray)
- Long Live the Z and Godzirra! -
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