April 9, 2008

Sirio S21 CL7 R 3.5cc engine

Sirio S21 CL7 R 3.5cc circuit engine

Star Motor Engineering have been in contact to let us know about their new 3.5cc on road engine, called the S21 CL7 R. This 7 port engine uses ABC construction and is of the same quality level as the company’s CL7 R STI, coming supplied with a rear ceramic ball bearing for high performace and reliability. This motor is aimed at racers that want a reliable, easy tuning engine, while retaining the same technology that has won 2 World titles in this class.

Usage

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