Suggestions for a good header?
#1
Suggestions for a good header?
Looking for a good header for my AP1. Currently running a vibrant muffler and resonator with a test pipe, but unsure of what headers actually offer any gains and still sound good. I'm having guys in Challenger R/Ts pull up and compliment how the car sounds and I don't wanna screw that up! Ideas?
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Sent from my HTC One X using Tapatalk 2
#2
Very hard to improve on stock header, that would be just about the last thing I would replace in a full N/A build. Lowering VTEC and tuning the car will yield bigger gains and overall improvement.
#4
Hytech is the best in my opinion for headers. Only thing that would top it is if ASP or Myers will make you a header. My buddy just got his Myers Header for his 320 wheel HP Nissan Sentra B13 with a SR24VE in it and the quality is amazing! Gained about 8whp over another same size race header he had.
#7
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#9
Intuition would suggest to most people that "knife edged" merges would be ideal, since it would seem that the high velocity gasses might flow with less resistance. However, the gas flow just doesn't mean jack crap. The magic is in the resonance, and good resonance is all about creating / passing good pressure waves while reducing / rejecting bad pressure waves.
It's also clear that knife edge transitions cause very narrow "RPM windows" for scavenging and plugging, which increases the wasted scavening and plugging; and requires a more conservative tune. If you consider the slope of a low-pass filter of some audio device, a filter that has an 18 dB per octave would be comparable to a header with rounded merges, and a 36 dB slope would be like a knife edge merge from Burns. If you are an audiophile, you might know that it would be easier to integrate and tune an 18 dB slope than it would a 36 dB slope. The overall performance of the 18 dB filter might be optimal.
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