Nissan 370Z Forum  

BERK HFC's.... Gasket between cats and exhaust mani??

I have been having issues with raspiness with my Berk HFC's and Stillen CBE... im 100% sure i've got all the slip joints 100% sealed up and that helped the

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust


Reply
 
LinkBack Thread Tools Display Modes
Old 11-03-2010, 05:14 PM   #1 (permalink)
Track Member
 
atx370z's Avatar
 
Join Date: Aug 2010
Location: Austin, TX
Posts: 637
Drives: 10 370Z T/S M6
Rep Power: 15
atx370z will become famous soon enough
Default BERK HFC's.... Gasket between cats and exhaust mani??

I have been having issues with raspiness with my Berk HFC's and Stillen CBE... im 100% sure i've got all the slip joints 100% sealed up and that helped the sound a lot... but im still getting some rasp around 4k to 5k rpm. I crawled under the car and noticed that the shop that installed the HFC's only used some sort of sealant between the HFC's and the exhaust manifolds. It's orange color and im sure it's some sort of high temp sealant. The shop works on Ferrari's etc. so i trust they know what they're doing, but is there supposed to be a gasket there or is the sealant sufficient? That is the only other place i could possibly be getting some "leakage".

All other bolted joints have gaskets and are super snug!

Thanks in advance.
__________________
Berk HFC & CBE, Stillen G3's, AMS Crank Pulley, JWT Flywheel,
4.08 Gears, UpRev, H&R Springs and 20mm Spacers, JDM
Rear Fog, EVO-R Front Lip and CF Upper Cover, 305's
atx370z is offline   Reply With Quote
Old 11-03-2010, 05:32 PM   #2 (permalink)
A True Z Fanatic
 
BOLIO 671's Avatar
 
Join Date: Mar 2010
Location: GUAHAN
Posts: 1,198
Drives: To & From then Back
Rep Power: 3399
BOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond reputeBOLIO 671 has a reputation beyond repute
Default

There should be gaskets between the HFC's and the Exahust Manifold....Berk supplies the gaskets to go with the HFC's...Most shops will add on that high temp sealant (Orange Color) as an addition.
__________________
2013 Nismo Z34 / FI TT #091 / IG: @lilzilla_z34
BOLIO 671 is offline   Reply With Quote
Old 11-03-2010, 06:07 PM   #3 (permalink)
Track Member
 
atx370z's Avatar
 
Join Date: Aug 2010
Location: Austin, TX
Posts: 637
Drives: 10 370Z T/S M6
Rep Power: 15
atx370z will become famous soon enough
Default

wtf... as far as i remember... Berk only supplied the 2 gaskets that have 2 holes that are used on the flange that bolts to the exhaust. I don't remember seeing a 3 hole gasket that was supplied with the HFC's.
__________________
Berk HFC & CBE, Stillen G3's, AMS Crank Pulley, JWT Flywheel,
4.08 Gears, UpRev, H&R Springs and 20mm Spacers, JDM
Rear Fog, EVO-R Front Lip and CF Upper Cover, 305's
atx370z is offline   Reply With Quote
Old 11-03-2010, 06:16 PM   #4 (permalink)
Administrator
 
Trips's Avatar
 
Join Date: May 2009
Location: Disneyland, Ca
Posts: 8,727
Drives: 🔰
Rep Power: 10
Trips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond repute
Default

Your supposed to reuse the metal gasket. Berks only supplies the gasket to the exhaust. Using silicone is a cheap work around. If you start it cold and hear a exhaust leak? check around the sliconed area for black exhaust soot, this is a sign there is a leak. The rasp is normal, the hfc's actually magnify the rasp, because of the improved exhaust flow.
__________________


http://www.the370z.com/payments.php
Trips is offline   Reply With Quote
Old 11-03-2010, 06:19 PM   #5 (permalink)
A True Z Fanatic
 
KaienZ34's Avatar
 
Join Date: Oct 2009
Location: LA. not L.a.
Posts: 21,652
Drives: Z34 Tour/Sport
Rep Power: 177
KaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond repute
Default

I bought my berks used so i called them they said it was the same as OEM part. So i got nissan part number 20691-19u00 and it's been working fine

__________________
"These Violent Delights Have Violent Ends"

KaienZ34 is offline   Reply With Quote
Old 11-03-2010, 06:24 PM   #6 (permalink)
A True Z Fanatic
 
KaienZ34's Avatar
 
Join Date: Oct 2009
Location: LA. not L.a.
Posts: 21,652
Drives: Z34 Tour/Sport
Rep Power: 177
KaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond reputeKaienZ34 has a reputation beyond repute
Default



I ended up getting part number 20692-65j00(this one goes between the y-pipe and mid-pipe before the resonators) aswell and berk part number bt1406 and it says all y-pipe/cat high temp graphite w/ss fire ring gasget(these go between the hfc and the y-pipe). I didn't end up using either one of these as i did not need them.
__________________
"These Violent Delights Have Violent Ends"


Last edited by KaienZ34; 11-03-2010 at 06:32 PM.
KaienZ34 is offline   Reply With Quote
Old 11-03-2010, 07:20 PM   #7 (permalink)
Track Member
 
Staples's Avatar
 
Join Date: Sep 2010
Location: Baltimore, MD
Posts: 546
Drives: '08 Infiniti G37s
Rep Power: 15
Staples is on a distinguished road
Default

I've heard the Stillen catback with high flow cats and it seemed pretty raspy to me. Each person is different though. One person will say there's no rasp, others might say it sounds like a Civic.
__________________
'08 Infiniti G37s - Forced Induction Fed
Staples is offline   Reply With Quote
Old 01-30-2011, 04:17 PM   #8 (permalink)
Enthusiast Member
 
NISMOFO's Avatar
 
Join Date: Jan 2009
Location: McKinney, TX
Posts: 269
Drives: 370Z
Rep Power: 16
NISMOFO is on a distinguished road
Default

Quote:
Originally Posted by KaienZ34 View Post
I bought my berks used so i called them they said it was the same as OEM part. So i got nissan part number 20691-19u00 and it's been working fine

So from the factory there is no gasket between the manifolds and the cats? I don't see one in the diagram.
NISMOFO is offline   Reply With Quote
Old 01-30-2011, 04:18 PM   #9 (permalink)
Administrator
 
Trips's Avatar
 
Join Date: May 2009
Location: Disneyland, Ca
Posts: 8,727
Drives: 🔰
Rep Power: 10
Trips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond reputeTrips has a reputation beyond repute
Default

Quote:
Originally Posted by NISMOFO View Post
So from the factory there is no gasket between the manifolds and the cats? I don't see one in the diagram.
Thats right
__________________


http://www.the370z.com/payments.php
Trips is offline   Reply With Quote
Old 01-30-2011, 04:53 PM   #10 (permalink)
Enthusiast Member
 
NISMOFO's Avatar
 
Join Date: Jan 2009
Location: McKinney, TX
Posts: 269
Drives: 370Z
Rep Power: 16
NISMOFO is on a distinguished road
Default

Thank you.....you are a life saver...I was freaking out!
NISMOFO is offline   Reply With Quote
Old 01-30-2011, 08:50 PM   #11 (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

My berks cats came with the three hole gaskets that go between the cats and manifolds. I was told to reuse the copper gaskets to seal it to the h-pipe.
Rooskey 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
◄Stillen/Injen CAI ║ Borla Exhaust/Berk HFC's ║ Tanabe Coils/SPC Rear Arms► ONEighty Parts for sale (Private Classifieds) 14 09-07-2010 11:03 AM
Those who installed HFC's, is there a factory gasket between the header and cat? rsximus Intake/Exhaust 6 04-05-2010 08:22 PM
Wtb - stillen exhaust / stillen intakes / berk cats xbigb4ller69z Wanted 0 03-24-2010 11:39 PM
Stillen Exhaust and Berk HFC's for SALE! mattkim85 Parts for sale (Private Classifieds) 16 10-05-2009 09:42 PM
Berk HFC's, Stillen Intake, and a Stillen Dual Exhaust.... 2theextreme The Lounge (Off Topic) 8 06-18-2009 10:01 PM


All times are GMT -5. The time now is 06:58 AM.


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