My point is that pods are better than no filter, and can work well enough on the street with proper tuning. For one thing, there is a very low air velocity at the carburetor entrance at lower RPMs, regardless of throttle opening, so the gang called turbulence Lloyd likes to call on has no effect.
Scottly,
I'm not certain why you delight in trying to bash me at every opportunity or to infer that I have said something I didn't. I invite you to focus your vendetta somewhere else.
To the ones in the tech forum who care,
Velocity is only one factor the carb employs to make a proper air fuel mixture. There is also the low pressure made by the falling piston on the intake stroke, and the physical distance from the atmospheric air source, to the carb throat jet exit point.
The most dramatic effect pods make for a street machine is to raise the carb throat pressure closer to atmospheric. This reduces the push through all the fuel jet orifices without effecting the air volume. Larger fuel jets are needed to compensate and restore correct fuel mix ratios. Neophytes then erroneously assume their engine uses more fuel, therefore is making more power, which is patently false. The extra noise, uncalibrated butt dyno, and unwillingness to believe they harmed their bike, fuels rider delusion. The larger jets are just compensating for lost volume of fuel due to operating pressure differences.
As I've said before (to those willing to listen) the turbulence issue is modal, related to the RPM and the air velocity through the carb throat. Turbulence eddies which reach into the carbs vary in size and violence as the air velocity changes. Each eddy has a high pressure side and a low pressure side. As the sides traverse the fuel jet outlets, more or less than average fuel volume exits the fuel jet pathway, making any fuel compensation adjustment non-linear and certainly unpredictable with whatever throttle position is selected.
Pods (as a generic) are only "better" than stock induction at or above red line RPMs when the engine is thrashing and trying to self destruct. That's a risk racer's take for the brief period of time they are on the track. This operational band is rather narrow and only briefly used on street vehicles. Without taylored profile slide needles, there will be street operating ranges which are too rich or too lean, and some that are just right, even if the attending "mechanic" has done anything besides getting it to run without customer complaint.
Racers don't care about these weird operation throttle selections, and posers only care that their bike "looks" like a racer, and tells everyone who will listen that it performs like one, whether their pods are specifically the same brand and type that were used on the idolized bike, or were simply ones they could obtain cheaply.
Can "pods" be tuned to "work"? Yes, for some value of "work" related to the level of acceptance and standards a person has.
If "working well" means being able to drive it around the block a few times, then pods can even work "well".