Quote:
Originally Posted by Sh0velMan
I think.... I think you guys don't really "get it" when it comes to my car.
Maybe if you saw and heard it in person? I think you have this impression that the car sounds like a small displacement Honda 4 cylinder with a straight pipe on it...
It doesn't.
Is there rasp? Yes, I can detect the sound of the rasp amid the other exhaust noises, but it definitely doesn't sound like yard equipment.
I mean, I've posted a video in my build thread of revving the damned thing, if all you hear in that sound clip is rasp, then I can't help you. My car is loud and in your face, and if people are laughing at the way it sounds, well, good for them. I'm glad I could give them something to laugh about.
And what's this about power? I'm losing power because I don't have extra pipes hanging off of my exhaust? Do you just make this stuff up as you go along? lmao. Do you even understand what causes the rasp? The mere act of acoustically cancelling out the pulses that generate the rasp can cause back pressure in the exhaust system. You're far more likely to see a power dip at specific RPMs WITH extra resonating chambers attached than you are with a straight pipe as 'canceling out the rasp' is breaking up an acoustic wavefront that helps with scavenging. I assume you know what that is, at least, and why you would not want to do so? This is exactly why you have to be careful with resonance alterations that close to the engine and why I will do no such thing.
THAT is fact, THAT is science. I don't want to make this an acoustics and fluid dynamics debate thread, it's already ridiculous enough.
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Well I have LTH also so I know what It sounds like. It was nothing but rasp as I'm sure yours is also. Reving a car doesn't count. I heard yours under load and my statement stands.
If you have rasp you're losing power, period. Read Chii post again. All that is from Tony at motordyne. Do you think tony makes more power with his ART pipes and CBE over straight pipes and other CBE because he lucky? No he's not lucky. He's smart and combated the rasp and drone with a proper setup using Helmholtz resonators which you don't have and I do. Guess what? I don't rasp or drone ever, and to boot because of the way a Helmholtz works with storing air pressure and acting as a vacuum when the flow has a gap in it, I bet I make more power than you too. The fact that you're talking about back pressure automatically makes you unqualified for this conversation. You need to read more and learn.
PS your science is wrong because your source you got it from don't have an understanding and years after years people are just passing BS along and down the line.