News flash: most tuners including Ivan from NY produced more power with the flies in.
Even Area P received 20 hp gains with flies in.
Ivan tuned my 2013 ZX14-R. . .fastest bike on the planet
News flash: most tuners including Ivan from NY produced more power with the flies in.
Even Area P received 20 hp gains with flies in.
I am not in a position to question the experts who spend countless hours performing dyno runs and modifications to get the most HP & Torque they can.
There is no logical reason they would leave the flies in if it would produce more power to take them out
Lets do it some more, shall we? KHI has seen fit to equip some of it's vehicles with secondary "flies" for a reason. While I can't speak for KHI, I know why American Honda sees fit to use them in their automobiles. Pray, tell, you say. ok, I will.
Under certain operating conditions the velocity of the air flowing into the head needs to be increased. This is accomplished by a controllable "restriction" in the intake tract. The higher velocity air helps to atomize the fuel, resulting in lower emissions for all of our tree hugging friends of nature.
Does anyone actually think that motor vehicle manufacturers "dumb down" their products for no good reason? Does anyone think that motor vehicle manufacturers put "extra" parts on a vehicle for no reason? Perhaps their profit margin is too high and the engineers are tasked with creating innovative new ways to complicate things and add expense? EMISSIONS is one of, if not the largest, hurdles that manufacturers have to overcome.
Go ahead and "modify" your vehicle so it "runs the way it should from the factory" and attempt to get it to pass the emissions testing required to sell that vehicle here in the EPA ridden US of A. Tinker, modify, remap, and reflash your little brains out, I certainly will. Just don't ask why it "didn't come this way from the factory?"
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I work with engineers....
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Aha! There is the problem right there! Stay away from dem guize, dey is no gud!
And remember, "The multitude of fools is a protection to the wise."
-Marcus Tullius Cicero
Written more than two thousand years ago and still as fresh a thought as any.
Brian
Well the engineers I work with on occasion really have to dumb things down for me so I'll do what I can. Way back when, or even now, depending on your social circles, many thought that tunnel ram intakes and other racing oriented parts were hung on street cars. It is common knowledge that larger intake runners are not better in all circumstance. If the air/fuel mixture is flowing too slowly, the combustion chamber will not fill properly. Huge volume is not always the answer. If that were the case, why not hang 100mm throttle bodies on vehicles along with 6 inch exhaust systems. Big picture, it's all about volumetric efficiency. Exhaust design has a large role in how the air fills the combustion chamber, along with the intake system.
I work with engineers that have to deal with CARB certification on a very regular basis. They have no reason to tell me anything but the truth. Is the emissions testing as stringent where you live and do you have to keep current with the constantly changing controls and government standards? I am just another dumb azz that will never be a genius like some, but I am smart enough to know that I don't know everything about everything.
In closing, no, all of my vehicles are not stock. I never stated or implied that they were. Read the last 2 lines of my previous post.
^^^ Very good analogy!!!
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The engineers have MANY factors they need to meet- most of them are NOT performance. Fuel economy, noise restrictions, emissions control, speed laws, engine control, cost, safety, longevity, repairability, user friendliness... most of those factors usually run contrary to performance, and many of them are probably factors for secondary butterflies.
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That explains why the tuners keep the flies in. Good dialog!