Berk HFC hissing?
#1
Berk HFC hissing?
Well last week I installed some Berk HFC's in my HR and ever since then I hear a hissing sound coming from the back end of the car. It only seem to be doing it when I'm in gear and let off the gas. The car runs fine but there is a tad less power in the lower rpm, once I hit 5k rpm it kicks hard. Anyone experience this? I have a JYC Y pipe going to a Fujitsubo Legalis R. Other then the hissing, I've been very happy with the Berks.
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i have a sound at the high rpms thats been pissing me off too... i wouldnt call it a hiss though.. more of a raspy rattle... but i thought HFCs werent supposed to rasp... im 95% happy about the Berk HFCs... if it wasnt for the rasp/rattle id be 110% happy...
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Originally Posted by Sick Z
I have the same sound, I believe its just backpressure. We used exhaust leak test on the whole car and found no leaks. Maybe Brian at Berk can explain more about this sound.
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so its normal?? this is the question that stuck in my head all day now
i just put JVC HFC on my z and started to make some weird noise around 3k rpm
also the sound comes when rpm is going down,
the sound is hard to describe its like rasp and hissing and rasp mixed together.
also is there are front and back on gasket that comes with HFC??
i started to wonder that if there is Front and back on HFC than i must have put it in wrong...
errrr i am so noob..
i just put JVC HFC on my z and started to make some weird noise around 3k rpm
also the sound comes when rpm is going down,
the sound is hard to describe its like rasp and hissing and rasp mixed together.
also is there are front and back on gasket that comes with HFC??
i started to wonder that if there is Front and back on HFC than i must have put it in wrong...
errrr i am so noob..
#17
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Originally Posted by ppanzil88
so its normal?? this is the question that stuck in my head all day now
i just put JVC HFC on my z and started to make some weird noise around 3k rpm
also the sound comes when rpm is going down,
the sound is hard to describe its like rasp and hissing and rasp mixed together.
also is there are front and back on gasket that comes with HFC??
i started to wonder that if there is Front and back on HFC than i must have put it in wrong...
errrr i am so noob..
i just put JVC HFC on my z and started to make some weird noise around 3k rpm
also the sound comes when rpm is going down,
the sound is hard to describe its like rasp and hissing and rasp mixed together.
also is there are front and back on gasket that comes with HFC??
i started to wonder that if there is Front and back on HFC than i must have put it in wrong...
errrr i am so noob..
i'm not sure about the sound your getting at 3k RPM, but like i said, if you hear a hissing sound, or a sound SIMILAR to a blow off valve after you rev and the RPM's are coming down, its normal.
#18
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Originally Posted by ppanzil88
i just put JVC HFC on my z and started to make some weird noise around 3k rpm
also the sound comes when rpm is going down,
the sound is hard to describe its like rasp and hissing and rasp mixed together.
also is there are front and back on gasket that comes with HFC??
i started to wonder that if there is Front and back on HFC than i must have put it in wrong...
errrr i am so noob..
also the sound comes when rpm is going down,
the sound is hard to describe its like rasp and hissing and rasp mixed together.
also is there are front and back on gasket that comes with HFC??
i started to wonder that if there is Front and back on HFC than i must have put it in wrong...
errrr i am so noob..
Maybe I will get used to it, but they almost sound like test pipes to me....loud and raspy Not sure if I am going to keep them on or not.
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Originally Posted by reserved
Well, I just had my Crawford HFC's removed today and Berks installed instead (I was pretty happy with the Crawfords, but the Berks were getting good reviews here and when I saw them, just looked like a very nice product).
Maybe I will get used to it, but they almost sound like test pipes to me....loud and raspy Not sure if I am going to keep them on or not.
Maybe I will get used to it, but they almost sound like test pipes to me....loud and raspy Not sure if I am going to keep them on or not.
Last edited by itsjiggajames; 03-23-2008 at 02:04 AM.
#20
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Originally Posted by reserved
Well, I just had my Crawford HFC's removed today and Berks installed instead (I was pretty happy with the Crawfords, but the Berks were getting good reviews here and when I saw them, just looked like a very nice product).
Maybe I will get used to it, but they almost sound like test pipes to me....loud and raspy Not sure if I am going to keep them on or not.
Maybe I will get used to it, but they almost sound like test pipes to me....loud and raspy Not sure if I am going to keep them on or not.
interesting. Yes, they definately make the nismo louder but i only experianced slight rasp for the first few minutes of warm up.