highboy_coupe
XS650 Addict
I was reading an interest article today by someone with an inline 4 engine with CV carbs, he had fitted K&N filters and had developed a midrange flat spot due to poor vacuum at part throttle; too much air turbulence around the carb mouth.
He found that rather than fitting covers, or a rudimentary airbox around the pod filters, creating some distances (maybe 50mm) between the carbs and the filters eliminated his flat spot.
He used some factory snorkels and bodged it together, but I found some 54mm ID silicone reducers of various sizes that would be perfect.
I suppose the science is that there is now a chamber of ''smooth" air behind the air filter, and that air originally drawn in sideways around the carb mouth is now channelled uniformly through the hose before hitting the carb.
Has anyone tried it? I'm going to give it a go (when my jets are sorted)
He found that rather than fitting covers, or a rudimentary airbox around the pod filters, creating some distances (maybe 50mm) between the carbs and the filters eliminated his flat spot.
He used some factory snorkels and bodged it together, but I found some 54mm ID silicone reducers of various sizes that would be perfect.
I suppose the science is that there is now a chamber of ''smooth" air behind the air filter, and that air originally drawn in sideways around the carb mouth is now channelled uniformly through the hose before hitting the carb.
Has anyone tried it? I'm going to give it a go (when my jets are sorted)