TwinTurbo.NET: Nissan 300ZX forum - Ah ok..didn't think..if only one runner is open at a time...
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Subject Ah ok..didn't think..if only one runner is open at a time...
     
Posted by collegeboy on February 12, 2007 at 10:22 AM
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In Reply To Wait a sec.... posted by Twainsville on February 12, 2007 at 01:32 AM
     
Message then that means our intake piping should only be about 1.95 inches in diameter for it to keep up as far as the math goes. Looks like we are good to go then :).

1.505x2=3.01 square inches per runner, and in this case, per side of the plenum

3.01/3.14=0.9585

0.9585 square root = 0.97908

0.97908x2= 1.958 inches in diameter.

Someone please double check my math. Also, are there really only two intake valves opened at a time on each side of the plenum? Just want to make sure.

Thanks,
Mike
1991 Black Twin Turbo

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