| I'll take a set of MS manifolds to the flowbench and test them. Guess what? The flow values I will see are going to be greater than the values provided by the flowtest that was performer earlier. Then, take a set of stock manifolds and perform the same test. Compare that data to the data collected on the MS manifolds. NOW you will have a TRUE comparison that was not obtainable by the previous testing method. In addition, now you have two sets of data that you can compare to any other manifold flow test (given that it isn't flown through a head with 'x' valve opening). I dont know what your inclinations are in this argument, other than the most obvious being your argumentative nature (which I enjoy ~90% of the time :), but in this one, I figure your argument is based solely on face rather than true, objective comparison. Although I agree with you that the data provided in the non-standard form of testing they performed does have merit, it was very much likely the worse case of non-apples to apples comparisons that could have been performed given the simplicity of performing the test WITHOUT the cylinder heads as a factor. It is as if they went out of their way to make the comparison as complicated as possible. My biggest question is why did they perform their test by flowing through the cylinder head rather than flowtesting the manifold all by itself? There are only two possible conclusions, of which neither are good and only one is the most probable: 1) They didn't realize the effect the cylinder would have on their test data; that being, the fact that the valve/port/runner is going to introduce significantly more of an effect into the flow measurements as compared to the effects of the different manifold designs. 2) They were aware of these effects, but performed the test anyway. 3) It was simpler to attach the head to the flowbench as it would require machining of unique adapter plates to perform the test on the manifold itself. Consider this example as well: Say you want to flowtest an intercooler. Would you connect just the single component of the intercooler itself to the flowbench or would you attach the 22-some-odd feet of intake piping to it as well? The results they provided are specific to that cylinder head and the MS manifolds. It is NOT a representation of what the manifolds themselves flow and is not reproducable. The test was flawed, the data is incorrect, and the data is incomplete.
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