C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 18, 2012 | 04:26 AM
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jim spitzer's Avatar
jim spitzer
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St. Jude Donor '12
Default tach.

On my 90 L98 the factory tach. are they close to spot on. The reason I ask is my car seems to want to wind out a lot more then I would think. I read that the L98 will run out of air at 4800 rpm. The owners manual says to shift gears at about 3200 rpm.
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Old Aug 18, 2012 | 04:34 AM
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tahoemedic
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Each vette has its own personality but yes at about 4800 rpm is peak for the L98. The heads just don't flow well enough to go higher. That was one of the reasons GM moved to the LT-1.
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