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only a side by side flow test, on the same calibrated bench is going to be of value. Mike Smith and Greg Dupree have done some nice work and I'm sure are great guys, but I doubt they are going to supply manfolds for a comparison test. If such a test were performed, who is going to define what is "good", when it is all relative...and done on a "bench" instead of in a car under dynamic conditions. Alias' doctored MS manifold test...even if the numbers were correct, doesn't mean much when you can put the subject manifolds side by side and see a massive difference in dimension. Furthermore, his flow test was performed on the better-flowing passenger side, instead the tighter-fitting driver's side. Besides dimensional "size", there is the issue of the "flow" pattern which has huge bearing on preserving lots of high velocity gases to spool-up your turbine. As a designer myself, I don't fault Mike or Greg for trying, just that I don't think they actually put the engine in the car and made the (large) turbo fit the engine AND the chasis, and unfortunately stuck w/ the stock manifold configuration.
I take a whole lot of pride in the fact that I have actually performed the latter task by engineering the manifold from the "ground up". We'll perform another flow test on these newly-designed pipes..and are certain the numbers will look even better than the others.... better than my previous design. But, isn't that what life is all about, working hard to make things and ourselves better for the good of all....and our Z. ThankZ for you interest,
Jon
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