Turbo manifold styles- Absurdflow lowmount vs ramhorn, which for maximum power?
#81
Fluid dynamics favors a design with the fewest bends from a drag and loss of impulse energy standpoint. You want very few 90s and no 180s if you want to maximize the effect of energy pulses on the turbine and not slamming into a corner and being dissipated as heat or rebounding. I don't have access to the fluid dynamics programs that some of you were using for intake manifold design, but many of the same principles are applicable. I recall that each 90 creates as much drag as 20 feet of straight pipe of the same diameter. If you must bend, use wide sweeping arcs.
As far as spool, shorter runners=faster spool. Full race, with their extensive experience in manifold building, agrees, even though saying otherwise would help their sales. They have no reason to lie. Sorry Bob, but I think you're wrong on that one. There may be other factors contributing to your fast spool, if it is indeed faster with the same displacement.
A low angle merge manifold with the shortest possible runners is the ticket. Tim, your designs look awesome. Have you started working on one yet?
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