1973 Porsche 911 RSR Twin Turbo Dyno Pull 558WHP !

With a 993 Twin Turbo engine enlarged to 3.8L and a short bell housing G50 six speed, this '73 RSR backdate made 558 wheel horse power at only 5700 RPM on pump gas ! With over 1100 RPM left before the tack turns red & a little more boost, it has much more power to give. Learn more about this build at Patrickmotorsports.com

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