Congrats to ZSteve, demon bolt removed!

Zsteve · 04-06-2010, 09:45 PM

Quote:

Originally Posted by m4a1mustang

It'd be interesting for the guys with some real mileage on these cats to pull them out and take a look inside to see how the honeycomb is holding up. I know it'd be a PITA but it'd be interesting to compare the longevity of the ERZs vs the FIs, Berks, and Stillens of the world.

The install was pretty easy so uninstall should only take about 30 mins. Im sure HFCs in general probably only have a certain life span, some more or less than others Im sure. I was hitting over 220 degrees on my oil temps so this weekend Im installing my Modshack DIY oil cooler and I am going to make sure all things are right with the HFC install while Im at it.

ArtVandaleigh · 04-07-2010, 02:54 PM

I installed Berk HFC's over the weekend to a Nismo exhaust and have some bigtime hissing/resonance going on. It's pretty loud, especially when the exhaust is cold, but gets a bit better as it heats up. WOT it's still very prominent though... plenty of clearance all around but it sure sounds like its almost metal on metal at mid-full throttle, could it be coming from the flex pipes? I had the exact same sound with my 350Z and Nismo exhaust too... althought not as loud now. Kinda a drag because the exhaust sound is very nice, just seems there are some angry King Cobra's under there somewhere lol.

Zsteve · 04-07-2010, 03:04 PM

Quote:

Originally Posted by ArtVandaleigh

I installed Berk HFC's over the weekend to a Nismo exhaust and have some bigtime hissing/resonance going on. It's pretty loud, especially when the exhaust is cold, but gets a bit better as it heats up. WOT it's still very prominent though... plenty of clearance all around but it sure sounds like its almost metal on metal at mid-full throttle, could it be coming from the flex pipes? I had the exact same sound with my 350Z and Nismo exhaust too... althought not as loud now. Kinda a drag because the exhaust sound is very nice, just seems there are some angry King Cobra's under there somewhere lol.

Well I don think I have any flex pipes now as the exhaust is all aftermarket. And the Hiss is just part of the game when you open up the exhaust and allow things to flow freely, plus the aftermarket parts arent as thick as stock, thats how they save weight, so the sounds come thru more. Its a give and take situation, if you want the power you have to take the noise too. If I go SC or final gear change I may go back to stock as the few HP wont really matter much then but for now Im sticking to them till they start to sound too raspy.

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04-07-2010, 02:54 PM	#2 (permalink)
ArtVandaleigh Base Member Join Date: Jan 2009 Location: NE Ohio Posts: 227 Drives: 09 PW 370Z Rep Power: 677	I installed Berk HFC's over the weekend to a Nismo exhaust and have some bigtime hissing/resonance going on. It's pretty loud, especially when the exhaust is cold, but gets a bit better as it heats up. WOT it's still very prominent though... plenty of clearance all around but it sure sounds like its almost metal on metal at mid-full throttle, could it be coming from the flex pipes? I had the exact same sound with my 350Z and Nismo exhaust too... althought not as loud now. Kinda a drag because the exhaust sound is very nice, just seems there are some angry King Cobra's under there somewhere lol.