Motorsport scene in the United States can be said as arguably one of the most competitive in the world. Season after season
racing teams are always more and more improvements to their vehicles. NASCAR sanctioned races are the most competitive races in the United States and teams are pursuing victories by improving their vehicles’ performance. Team Chevy is one of the teams going for the win every race they participate in. Recently
the team introduced the Impala SS race car in the NASCAR Nextel Cup. This development is now being followed by the announcement of a new engine that will be used on the Impala SS
which comes in the form of the Chevrolet RO7 engine. The engine will make its debut at the Samsung 500 at Texas Motor Speedway.The RO7 account is based on General Motors’ small-block V8 engines. It will be replacing the Small-Block/2nd Generation engine that team since 1998. The SB2 will completely replace the RO7 eventually. For now
the RO7 likely to improve the performance of the team cars to give. Mark Kent
director of GM Racing
their objectives of developing the new engine and the subsequent reaction after tests on the engine in this statement: “The GM Racing engine development team four major objectives in mind during the design had and the development of the Chevrolet R07 engine. Our goal was to create a motor that produces competitive power
delivers excellent reliability
enhances safety and reduces costs for Chevrolet teams. Based on the feedback we have received from Chevy teams after extensive dynamometer and track testing
I think we achieved our objectives. “The RO7 is the first engine that GM built solely for the purpose of NASCAR racing. According to Pat Suhy
GM Racing Group Manager for the oval track
“The Chevrolet R07 is GM Racing’s first purpose-built NASCAR racing engine. NASCAR parameters for the new generation engines offer a range of choices on key dimensions and design features. Our task was to take critical decisions and carefully balance the tradeoffs that would enable the Chevrolet R07 to Chevy’s success in NASCAR to go. In the long term
the results show whether we made the right choices. “The main parts for the RO7 engine as the cylinder block
cylinder head and manifold came from GM Racing. Other parts supplied by GM Racing are the water pump
rocker covers and front cover. Other components such as the Chevy fenders by different manufacturers. Engine parts are also supplied by several independent parts manufacturers. Meanwhile
Jim Covey
NASCAR engine development manager for GM Racing
has this to say how GM was able to get the latest driver of the Impala SS to “New manufacturers coming into NASCAR pushed the envelope with engines that had no ties to producing power plants
while GM engines were based on the architecture of the first small-block V NASCAR Nextel Cup Series director John Darby addressed this problem by developing a list of parameters that define the envelope for all manufacturers
thereby Chevrolet an opportunity to develop the R07 engine. Now with the introduction of the Chevrolet R07
Chevy teams have an optimized engine design that advances in racing technology made over the past 50 years reflects. “Major differences between the SB2 and RO7 include the increased cylinder bore centers RO7 that coolant flow to keep the engine at normal operating temperature increases. Another improvement of RO7 the SB2 is the time needed to assemble the engines. The RO7′s cast camshaft tunnel
integral piston squirter galleries
and overhead oil feed galleries makes it faster to assemble than its predecessor. As far as safety is concerned
the designers of the new engine moved the fuel pump external oil and coolant eliminates lines.Team Chevy is no doubt rely on the combination of the Impala SS and the new RO7 engine achieve more wins. According to Mark Kent: “The introduction of the Chevrolet R07 this weekend marks the beginning of a new era for the GM small-block V-8 en
gine. The Chevrolet R07 is the heir to the winning tradition of GM production-based engines that have powered Chevy to more than 600 victories in NASCAR Cup competition. As we look to the future
we are confident that the Chevrolet R07 engine and the Impala SS race car will Team Chevy’s winning ways going in NASCAR. “
Team Chevy Introduces New Racing Engine
