Question about 1989 Chevrolet Corvette

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What is the ideal operating fuel pressure for an 89 Corvette w/ LT-1 TPI

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The 1989 corvette does not have the LT1 engine, it is a L-98 TPI. The proper rail fuel pressure with the pump running is around 42-44 PSI.

Posted on Jun 05, 2010

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The 5.0L injector is sized to deliver approximately 4.05 milligrams of fuel with a 2.5 millisecond pulse or 18.13 lbs per hr at approximately 36 PSI. The 5.7L injector is sized to deliver approximately 4.83 milligrams of fuel with a 2.5 millisecond pulse or 23.92 lbs per hr at approximately 43.5 PSI. This information is typical for all manufacturers and flow rates will vary slightly even between identicle injectors.
Good luck and hope this helps.

Posted on Feb 06, 2010


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