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Old 04-26-2013, 08:25 AM   #1
gmonsen
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Default Version 3 NA 20b Start-Up
I am close to finishing version 3 of my NA 20b motor. New design is 3 plug per rotor, individual housing oiling and coolant systems, scalloped rotors, ITB's, and unique secondary throttle butterflies at the larger secondary intake ports built into the intake flange. This is designed to increase torque production at lower rpm while still producing the same top end power. We just started the motor up for the first time without the new intake system, just to bed in the motor. Should have the new intake system on in a few weeks.

G

http://s254.photobucket.com/user/fd2...R0053.mp4.html

http://s254.photobucket.com/user/fd2...R0052.mp4.html






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1991 BMW 850 6 speed
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