Riceburner Posted August 17, 2012 Posted August 17, 2012 I have a question for the velocity stack guru's.... I have come across a 'power blade' stack (see pic below). The velocity stack is fitted with a horizontal plate across the centre, when the flatslide is open on low to half throttle the air is only drawn straight throught the lower section. This is meant to promote higher velocity,less turbulence and give better driveabilty. I guess it's acting like a choke at part throttle, at full throttle it has no effect. It claims to increase power/torque in the low to mid range rpm. People that have fitted then have had to increase main jet size. My shift point is 7200 so I figure thats low-mid range, for a carb desingned for twice that maybe more on bikes. The theory behind these seems to make sense but I'm wondering what you guys think? Quote
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