Originally Posted by silverbullitt51
well yeah that makes sense it would in theory hurt the performance but what about those cai kits that are super long and go down under the fender. i would agree that the effects would be better with a forced set-up, but im not 100% sure yet how they work im still researching, i was just posting what i noticed from my experience
Most of the ones I have seen like that compensate for the excess friction by pulling in colder air which is denser, being farther away from the heat source. Though the speed of the air overall shouldn't be affected that much by the friction, but in a case were air moves through the longer piping faster you got a lot of noise and extra heat generation. Think of speaker boxes and ports, the air will inevitably move through a smaller port but with port noise and sometimes in extreme cases cone turbulence (when the pressure can't equalize fast enough and there is a delay). In all honestly its all in such small amounts you will never notice the difference between one that's smooth vs one with baffles or blades or even one that 6inches long vs 9 inches long considering how high air pressure forcing air into intake.
My understanding is the spacer provides more air at the tb basically on demand and is not waitkng om the delay between the drop in pressure inside the intake and for fresh air to be pushed into the intake.
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