Quote:
Originally Posted by Logic
I think the Anti Reversion Trap is about disrupting any backward flow aerodynamically.
Venting them into a specific sealed volume may make them more like PWTBs, but you WANT the pulses in the Branch to help pull the exhaust gasses out...
ie: If you moved them further down the pipes to get these pulses timed; you'd end up with a PWTB!  |
It's not an 'aerodynamic' phenomena. On David's typical Chevy small-block 350, it has to do with a MACH- 1.66 shockwave-induced, reflected-rarification-scavenging event, originating at the exhaust tip atmospheric interface. And the engine must have valve overlap in order for the effect to work.