follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Scion FR-S Forum | Subaru BRZ Forum | Toyota 86 GT 86 Forum | AS1 Forum - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-13-2019, 03:47 PM   #1
86driftcar
Member
 
86driftcar's Avatar
 
Join Date: Oct 2019
Drives: Toyota 86
Location: Canada
Posts: 13
Thanks: 2
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Two resonators and still have rasp

This weekend I finally went with a buddy who is running a sprintex supercharger to get the last piece of exhaust installed; "resonated front pipe" which cause his exhaust to sound as raspy as a honda fart can. He is pro tuned with ECUTEK and running catless UEL tomei header, tomei over pipe, resonated invidia front pipe and resonated & muffler invidia N1 cat back. Two resonators but still raspy AF. Does anyone know if this will eventually go away, wil a revision tune get rid of this raspy sound? I've searched all I could and cant find a solution, any help is appreciatted.

Last edited by 86driftcar; 10-14-2019 at 11:09 PM.
86driftcar is offline   Reply With Quote
Old 10-13-2019, 05:13 PM   #2
tehShirt
Senior Member
 
tehShirt's Avatar
 
Join Date: May 2017
Drives: 2017 BRZ PP
Location: Upstate SC
Posts: 318
Thanks: 367
Thanked 233 Times in 129 Posts
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Garage
The combination of a catless header and aftermarket front pipe are going to contribute to the noise, as you've removed the two factory cats. The N1 can be raspy, especially with an EL header. You could try to use the stock frontpipe. Some people seem to have success with the JDL ultra-quiet frontpipe.


If it was me, I'd try the stock frontpipe first, then consider a different catback.
tehShirt is offline   Reply With Quote
Old 10-13-2019, 06:05 PM   #3
BEZO760
Member
 
Join Date: May 2019
Drives: Blue 2016 SCION FR-S
Location: CA
Posts: 77
Thanks: 46
Thanked 26 Times in 18 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
I've got

Header: JDL UEL header (no cat)
Over Pipe: Tomei over pipe (regular ol' basic pipe)
Front Pipe: JDL ultra quite front pipe (1 cat & 1 res)
Catback: Invidia N1( you know the deal)

No rasp at all. The JDL ultra quiet pipe really helps with rasp. The downside which I don't mind at all is it does drone at certain rpms on the highway.

All 2.5 inch not 3 inch.
BEZO760 is offline   Reply With Quote
Old 10-13-2019, 06:47 PM   #4
evoto86
Member
 
Join Date: May 2017
Drives: manual Toyota 86
Location: NSW
Posts: 90
Thanks: 21
Thanked 43 Times in 23 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I have a Catless UEL Header, Aftermarket Overpipe. I have kept the stock front pipe and catback, cut out the resonator in the front pipe and replaced it with a Vibrant ultra quiet resonator and it sounds great now no rasp at all and better then stock. You could just do the stock front pipe and Vibrant ultra quite resonator I'm sure he will get good results from that as well.
evoto86 is offline   Reply With Quote
Old 10-13-2019, 07:46 PM   #5
FRSBRZGT86FAN
Senior Member
 
FRSBRZGT86FAN's Avatar
 
Join Date: Jun 2013
Drives: 2015 FR-S AT, 2019 CX-5
Location: Philadelphia, PA
Posts: 4,158
Thanks: 3,025
Thanked 2,028 Times in 1,355 Posts
Mentioned: 31 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by 86driftcar View Post
This weekend I finally went with a buddy who is running a sprintex supercharger to get the last piece of exhaust installed; "resonated front pipe" which cause his exhaust to sound as raspy as a honda fart can. He is pro tuned with ECUTEK and running catless tomei header, tomei over pipe, resonated invidia front pipe and resonated & muffler invidia N1 cat back. Two resonators but still raspy AF. Does anyone know if this will eventually go away, wil a revision tune get rid of this raspy sound? I've searched all I could and cant find a solution, any help is appreciatted.

The N1 is notoriously loud, you'd need a different catback to cut out the rasp.
__________________
OFT Stage 2 UEL E85/Nameless Performance 3 inch axleback with 5 inch mufflers/ TRD CAI / CNT UEL/ Cusco Strut BAR & LHD Brake Stop / "JDM" Toyota Badges / WinJet JDM headlights - DRL MOD from fteightysix.com - 5000K Diode Dynamics HID kit / Diode Dynamics LED interior Lights and sidemarker bulbs / JDM Clear Sidemarkers / Diode Dynamics LED switchbacks/ OLM LED rear turn signals / Tap Turn Relay
FRSBRZGT86FAN is offline   Reply With Quote
Old 10-13-2019, 11:54 PM   #6
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 23,320
Thanks: 17,456
Thanked 20,844 Times in 11,533 Posts
Mentioned: 531 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by 86driftcar View Post
This weekend I finally went with a buddy who is running a sprintex supercharger to get the last piece of exhaust installed; "resonated front pipe" which cause his exhaust to sound as raspy as a honda fart can. He is pro tuned with ECUTEK and running catless tomei header, tomei over pipe, resonated invidia front pipe and resonated & muffler invidia N1 cat back. Two resonators but still raspy AF. Does anyone know if this will eventually go away, wil a revision tune get rid of this raspy sound? I've searched all I could and cant find a solution, any help is appreciatted.
Ya, put the OEM header back on.



humfrz
humfrz is online now   Reply With Quote
Old 10-14-2019, 12:07 AM   #7
86TOYO2k17
Senior Member
 
Join Date: Jan 2018
Drives: 2017 toyota 86
Location: PNW
Posts: 881
Thanks: 67
Thanked 369 Times in 266 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Ace 250 header, hks double res fp, csg mxp touring86 catback. No drone or rasp and not much louder than stock. Sprintex SC didn’t really impact exhaust only added intake/sc noise and whine.

I have noticed slight changes to exhaust sound with tune changes, but nothing drastic, i wouldn’t expect it to solve your issue.
86TOYO2k17 is offline   Reply With Quote
Old 10-14-2019, 01:16 AM   #8
86MLR
Senior Member
 
86MLR's Avatar
 
Join Date: Aug 2018
Drives: 2017 86 limited
Location: Sydney
Posts: 1,497
Thanks: 236
Thanked 1,124 Times in 632 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by humfrz View Post
Ya, put the OEM header back on.



humfrz
Decatting the OEM header works well for unleashing some free flow, plus it's way quiter than a Tomei UEL catless header that I trialled, plus the only cost was 3 gaskets.

The Tomei header, which showed nil real positives or gains over the decat, apart from noise, alot of noise, was pulled and sold ASAP, the guy I sold it to got busted by the police for noise after about 1 week.....opps

As for the OEM catback, I'm running it with my AVO, the only other aftermarket bits is a cheap 2.5" overpipe and a SME 2.5" resonated front pipe, the car is as quite as, it was slightly louder with the decated OEM header though, it seems a turbo acts as an excellent muffler.

This makes me happy because I dislike loud for the sake of being loud.

The main reason for my SME front pipe was after decating the OEM frontpipe there was a bit of rasp and added noise, the resonated front pipe fixed the rasp.

I do wish I got the dual resonated now though, an additional glass pack would be icing on the cake, the quiter the better I say.

The little thing runs up perfectly, it sounds stock when I'm just plodding around, and all you really hear when I'm up it is induction.

These are linkys from Pulse Racing (tuner/workshop) on facehead if anyone is interested in listening, scroll down to 10 September for when it got the turbo, or al the way back to 20 March for NA tune with full decat and 2.5" header back exhaust (twice the noise, half the power) > https://www.facebook.com/PulseRacingWorkshop/

My build thread is in the signature block if anyone is interested in an older gents opinionated view on things.

Not as old as Humfrz, but I'm working on it.
__________________
Disclaimer: This post represents the official views of the voices in my head at the time of posting.
http://www.ft86club.com/forums/showthread.php?t=133311
I'm only here for the biscuits
86MLR is offline   Reply With Quote
The Following User Says Thank You to 86MLR For This Useful Post:
humfrz (10-14-2019)
Old 10-15-2019, 07:53 PM   #9
86driftcar
Member
 
86driftcar's Avatar
 
Join Date: Oct 2019
Drives: Toyota 86
Location: Canada
Posts: 13
Thanks: 2
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thanks for replying yall. I have read and taken in some of your experiences, opinions. I feel like the combination of deleting the 3rd cat and the Invidia N1 is most likely causing he raspiness. When he was running the OEM front pipe there was no issue/rasp whatsoever so its definitely the catless front pipe.
He dropped in a K&N filter and as mentioned the catless but resonated invidia front pipe so we're going for a tune revision at the dyno this week. We'll see if anything changes and will report back... stay tuned...
86driftcar is offline   Reply With Quote
The Following User Says Thank You to 86driftcar For This Useful Post:
JesseG (10-15-2019)
Old 10-24-2019, 03:32 AM   #10
jflogerzi
Senior Member
 
jflogerzi's Avatar
 
Join Date: May 2012
Drives: 2013 Series 10 6MT FR-S
Location: Moreno Valley, CA
Posts: 3,351
Thanks: 1,141
Thanked 1,009 Times in 780 Posts
Mentioned: 60 Post(s)
Tagged: 0 Thread(s)
Garage
Your not gonna lose much running the stock FP imo. Just go back to stock FP and your Golden

Sent from my GM1915 using Tapatalk
__________________
2013 Series 10 FRS #553
JDL 4-2-1 EL, Stock, FP with Vibrant RES, Stock CB
RR Wilwood Front BBK, Stock rears, Motul 600 Fluid
Koing Hypergram 17x8 ET40 SX2 GTs 245/40/17
Sprintek 210 IC + FF + Tuned by Mike @ Xero Limit
jflogerzi is offline   Reply With Quote
Old 10-29-2019, 02:33 PM   #11
kevaughan
Member
 
kevaughan's Avatar
 
Join Date: Nov 2017
Drives: BMW E30, 2014 FR-S
Location: Toronto
Posts: 67
Thanks: 84
Thanked 14 Times in 12 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I had the same rasp problem as you when I was completely catless.
This front pipe changed everything and now the sound is much improved.


https://www.ft86motorsports.com/invi...-fr-s-brz.html
kevaughan is offline   Reply With Quote
Old 10-29-2019, 09:40 PM   #12
Tristor
Senior Member
 
Tristor's Avatar
 
Join Date: Feb 2018
Drives: 2017 Subaru BRZ Limited
Location: San Antonio, TX
Posts: 586
Thanks: 2,917
Thanked 513 Times in 271 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Garage
Why are you surprised there's rasp? The Invidia N1 and similar (Spec D) are basically the worst sounding exhaust you can buy for this platform. They have significant issues with drone and rasp even on otherwise stock exhaust, and after you go catless this just exacerbates this condition.

If you want your exhaust to not sound like garbage, buy a quality exhaust and stop trying to be cheap.
Tristor is offline   Reply With Quote
Old 10-29-2019, 09:54 PM   #13
86MLR
Senior Member
 
86MLR's Avatar
 
Join Date: Aug 2018
Drives: 2017 86 limited
Location: Sydney
Posts: 1,497
Thanks: 236
Thanked 1,124 Times in 632 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
I just got a Arc grip catback for cruises and meets, sounds amazeballs, really deep sound, no drone..

AVO turbo, 2.5" overpipe, 2.5" resonated front pipe.

Slightly too loud for me for daily, but by no means loud loud.

My kids says it sounds better than my old 2015 STI with a turbo back Q300, less drone as well, the Q300 droned a bit .
__________________
Disclaimer: This post represents the official views of the voices in my head at the time of posting.
http://www.ft86club.com/forums/showthread.php?t=133311
I'm only here for the biscuits
86MLR is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
custom resonators? 0x56 Northern California 2 07-18-2019 08:25 AM
Straight Pipe + 3 resonators, too much ? Blackedout86 Engine, Exhaust, Transmission 11 12-21-2018 02:47 PM
Do I need 2 resonators? DigitalVeil92 Engine, Exhaust, Transmission 7 03-29-2018 06:49 AM
Question about resonators Caharin Engine, Exhaust, Transmission 16 12-26-2014 03:01 AM
Reason for 4 intake resonators? ahausheer Engine, Exhaust, Transmission 3 06-08-2012 04:56 PM


All times are GMT -4. The time now is 06:51 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage vBulletin Plugins by Drive Thru Online, Inc.