Nissan 370Z Forum  

Berk HFCs on Factory Nismo Exhaust *RASP*

Hey all, First bolt-on on my nismo is the Berk HFCs and wondering if anyone has put this on their nismos with the factory exhaust. Reason I'm asking is that

Go Back   Nissan 370Z Forum > Other 370Z Models > Nismo 370Z


Like Tree3Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 12-07-2010, 03:43 PM   #1 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 14
QVu is on a distinguished road
Default Berk HFCs on Factory Nismo Exhaust *RASP*

Hey all,

First bolt-on on my nismo is the Berk HFCs and wondering if anyone has put this on their nismos with the factory exhaust. Reason I'm asking is that I am experiencing quite a bit of rasp under hard acceleration/revving and wondering if others have experienced this. Berk said that this is expected, no break-in period ; is it something ill just have to get used to? What are your experiences?

Thanks,

QVu is offline   Reply With Quote
Old 12-07-2010, 05:12 PM   #2 (permalink)
A True Z Fanatic
 
chops's Avatar
 
Join Date: Oct 2010
Location: NA
Posts: 1,732
Drives: NA
Rep Power: 21
chops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond repute
Default

i have rasp with the nismo factory exhaust and ERZ HFC's. the below is a video..it doesnt really capture the deepness of the exhaust thats awesome, but more so the rasp and decelleration hiss that i hate. from what ive posted elsewhere...

from 0-25 seconds, its a slow rev up until about 5-6k rpm. at 26 seconds or so im just jamming the throttle to the floor...the rattling (rasp) is very noticeable!

YouTube - IMG 0347
chops is offline   Reply With Quote
Old 12-07-2010, 05:35 PM   #3 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 14
QVu is on a distinguished road
Default

That is exactly how my car sounds!
My biggest pet peeve is to sound like a tin can driving down the road.

The rasp does diminish as the car warms up but I still notice it.

Are you just living with it? What are your plans?
djtranz likes this.
QVu is offline   Reply With Quote
Old 12-07-2010, 05:36 PM   #4 (permalink)
Base Member
 
BennytheBlade's Avatar
 
Join Date: Oct 2009
Location: Huntsville
Posts: 180
Drives: 09 Black 370 NISMO
Rep Power: 15
BennytheBlade is on a distinguished road
Default

Ive got berk hfc w the nismo exhaust and g3 intakes and no rasp.
Don't know what it's like w/o the intakes.
__________________
Forged Specialties SC 6 Bronze 19x9.5 +22 19x10.5+12|Hankook Evo 255/35/19 305/30/19
Berk HFC | BM Short Shifter |Stillen G3 Intake
BennytheBlade is offline   Reply With Quote
Old 12-07-2010, 05:39 PM   #5 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 14
QVu is on a distinguished road
Default

Thats so strange, then how is my install of the hfc different? Arg!
QVu is offline   Reply With Quote
Old 12-07-2010, 05:45 PM   #6 (permalink)
A True Z Fanatic
 
chops's Avatar
 
Join Date: Oct 2010
Location: NA
Posts: 1,732
Drives: NA
Rep Power: 21
chops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond reputechops has a reputation beyond repute
Default

Quote:
Originally Posted by QVu View Post
That is exactly how my car sounds!
My biggest pet peeve is to sound like a tin can driving down the road.

The rasp does diminish as the car warms up but I still notice it.

Are you just living with it? What are your plans?
from what everyone on the boards has told me...the rasp does diminish once they "break in". itll become less noticeable as the miles rack up. im at about 2-300 miles since ive installed them, and they are less raspy, but i still do get that annoying sound on hard acceleration. im hoping it goes away within the next thousand miles.

others on the boards have told me to give it a month or so before i come to any hard conclusion on removing them as they have said their rasp has nearly disappeared. we'll see as time goes.. otherwise it sounds soooo nice
chops is offline   Reply With Quote
Old 12-07-2010, 06:00 PM   #7 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 14
QVu is on a distinguished road
Default

Yea ill give it some time as well before i make the decision to remove em. I definitely like the sound other than the rasp...Thanks for your input! Appreciate it!.

QVu is offline   Reply With Quote
Old 12-07-2010, 06:02 PM   #8 (permalink)
A True Z Fanatic
 
Join Date: Nov 2009
Location: 90090
Posts: 1,851
Drives: Force Fed Nismo
Rep Power: 183
wishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond reputewishihadnav has a reputation beyond repute
Default

huh thats odd because i had no rasp aftr the Berks..hmm..
wishihadnav is offline   Reply With Quote
Old 12-07-2010, 10:09 PM   #9 (permalink)
Track Member
 
Rooskey's Avatar
 
Join Date: Jul 2010
Location: South Carolina
Posts: 974
Drives: 2014 Alpha7 GTR
Rep Power: 15
Rooskey will become famous soon enough
Default

No rasp here either. (Berks with Nismo exhaust)
Rooskey is offline   Reply With Quote
Old 12-07-2010, 10:39 PM   #10 (permalink)
Base Member
 
BennytheBlade's Avatar
 
Join Date: Oct 2009
Location: Huntsville
Posts: 180
Drives: 09 Black 370 NISMO
Rep Power: 15
BennytheBlade is on a distinguished road
Default

I was told that it may get louder as time goes one w/ the hfc, but so far, 3k miles or so, it still sounds the same... not loud, but deep.
__________________
Forged Specialties SC 6 Bronze 19x9.5 +22 19x10.5+12|Hankook Evo 255/35/19 305/30/19
Berk HFC | BM Short Shifter |Stillen G3 Intake
BennytheBlade is offline   Reply With Quote
Old 12-08-2010, 09:28 AM   #11 (permalink)
A True Z Fanatic
 
fuct's Avatar
 
Join Date: May 2009
Location: Sugar Land
Posts: 3,692
Drives: 97' Ranger :)
Rep Power: 23
fuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud of
Default

i just listened to your clip. if your talking about that hissing during deceleration then thats not rasp.... poke a large hole in a hoonda exhaust and you have rasp. i have CNT test pipes and i have double that hiss.

during hard acceleration i hear more of what sounds like a sh1t load of air trying to rush out the restrictive nismo exhaust. no raspy, more air-y<< not a word i know.
fuct is offline   Reply With Quote
Old 12-08-2010, 10:19 AM   #12 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 14
QVu is on a distinguished road
Default

I will be posting a video of what MY car sounds like. I don't mind the hiss on decell but its the metallic tinging/raspiness on hard accell that is buggin the absolute hell out of me. I do hear the air whoosh but it is accompanied by that tin can sound.
QVu is offline   Reply With Quote
Old 12-08-2010, 10:26 AM   #13 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 14
QVu is on a distinguished road
Default

YouTube - Sent from my iPhone
QVu is offline   Reply With Quote
Old 12-08-2010, 01:05 PM   #14 (permalink)
A True Z Fanatic
 
fuct's Avatar
 
Join Date: May 2009
Location: Sugar Land
Posts: 3,692
Drives: 97' Ranger :)
Rep Power: 23
fuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud of
Default

yeah def no tin can sound here. i would have ripped the TP's out if i heard that.
fuct is offline   Reply With Quote
Old 12-08-2010, 01:07 PM   #15 (permalink)
A True Z Fanatic
 
fuct's Avatar
 
Join Date: May 2009
Location: Sugar Land
Posts: 3,692
Drives: 97' Ranger :)
Rep Power: 23
fuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud offuct has much to be proud of
Default

Quote:
Originally Posted by QVu View Post
im guessing the video isnt capturing this tin can sound. im not really hearing it.

could it be your used to the deep rumble of a V8, and the mechanical sounding V6 is just dif to you?
fuct is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Nismo Exhaust - Berk NON RES TP's adidasboy1186 Parts for sale (Private Classifieds) 17 11-14-2010 10:15 PM
Berk HFCs for sale cheap bram370 Parts for sale (Private Classifieds) 6 08-14-2010 01:06 PM
Stillen or Berk HFCs spearfish25 Wanted 2 01-01-2010 02:15 PM
Stillen Exhaust with Berk HFCs semtex Intake/Exhaust 127 12-01-2009 02:53 PM
Brand New Berk HFCs, $390 Shipped drisko Parts for sale (Private Classifieds) 3 08-17-2009 10:50 AM


All times are GMT -5. The time now is 08:52 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2