so... my original understanding of the formula was flawed so I did a little research, properly solved for L and then plotted it as a function of RPM. Here's a picture of the plot I was able to derive.
I also had the program pump out the minimum length at an 8k redline. Here's what I had the program pump out:
Quote:
>> runnerlength()
Assumed redline of 8000
Min Runner Length: 0.162229 m
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Consequently I think it will require a little tweeking in order to be extremely accurate. But assuming that there's about 10 cm or so inside the engine itself it makes absolute sense that a 11 cm intake manifold at redline is so small... but who knows.
So what do you guys think?
(also this is for a runner diameter of about 4 cm)
02-02-2010, 04:32 PM
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