1984-1996 Corvette EGR Diagnosis


By Chris Petris

Exhaust Gas Recirculation (EGR) came about in 1975 when catalytic converters were introduced. The inert exhaust gas was used to quell the increased heat in the engine’s cylinders from the lean fuel mixtures required to keep the catalytic converters from melting down. EGR systems also helped eliminate spark knock from the increased combustion chamber temperatures. The feds were also pushing for a reduction of NOx nitrogen oxide emissions to reduce ground level ozone formation. The EGR system was an asset in many ways during the early years of emission control. As engine controls and development advanced, EGR has become obsolete for the majority of engine manufacturers. Unfortunately, there are many Corvettes on the road with EGR systems failing. (more…)

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Corvette Central’s Cutaway Car Unveiled

Corvette Central unveiled their “Cutaway Corvette”  during Corvettes at Carlisle August 27-29, 2010.  The car, a red 1988 with the TPI 5.7 and 4-speed automatic, was developed in cooperation with Petris Enterprises in Scottsboro, AL.  A majority of inner and outer trim panels have been removed in order to see the cars components up close.  Corvette Cutaway features OEM equipment, as well as replacement and performance parts offered by Corvette Central.  The car is able to be driven and will be used for seminars and events.

Bookmark CC Blog to stay up-to-date as we review this car in full detail!

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