Turbo and Supercharger discussion
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By robster
#92799 I whant to build my own custom turbo manifold and the design will be some kind of mini ram (A/C friendly). So I would like to know what pipe diameter i should use!?
My squere area at the head is 30,5mmx42mm = 1081mm² this whoud lead to a diameter of 40-41mm or should i use a 45mm pipe to prevent reversion?

Pleaser help!