TwinTurbo.NET: Nissan 300ZX forum - 4th gear.
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Subject 4th gear.
     
Posted by ZHOUND on November 11, 2002 at 2:23 PM
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In Reply To im confused >>>> posted by Chris(NJ) on November 11, 2002 at 08:32 AM
     
Message The reason you should want to dyno tune in 4th, is because its 1:1 ratio. And if you only tuned the 3rd gear, your A/F can still be off in 4th because in the higher gears you have more load on the engine, therefore if the fuel curve was perfect in third it can easily be too lean in 4th.

     
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