A passive knock sensor was utilized to eradicate knocking, and afterwards versions showcased a specially-created more compact and lighter "Impact Turbo" which was tweaked to the exceptional exhaust signature of the Wankel engine for a 5-horsepower enhance.[thirteen] The engine ongoing until finally 1989 during the HB Cosmo series but by https://kamerongmoje.oblogation.com/29653397/the-greatest-guide-to-rx7-engine