Nameless Performance Equal Length Stepped Header - Page 270 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

OrbitalEllipses · 03-12-2014, 12:15 PM

Rear section of the midpipe going to the suitcase.

slava · 03-12-2014, 09:27 PM

Install went fine, everything fit real well. The Greddy SP elite and Namless stuff doesn't seem to mate up well at all. Sounds super raspy.

[ame="http://www.youtube.com/watch?v=-dfIGW9zymA"]BRZ with Namless EL Headers / DP / MP / Greddy SP Elite - YouTube[/ame]

I need some suggestions on how to fix this. It has the Nameless EL headers, 3" Downpipe, 3" Midpipe, and 2.5" Greddy SP Elite axleback. There has to be some science behind this. How do I make the raspiness go away? @Ryan@Nameless Any ideas?

Tuning set up Friday the 21st btw. Hoping to have a new muffler by then that kills the rasp.

Calum · 03-12-2014, 09:37 PM

Quote:

Originally Posted by slava

Install went fine, everything fit real well. The Greddy SP elite and Namless stuff doesn't seem to mate up well at all. Sounds super raspy.

I need some suggestions on how to fix this. It has the Nameless EL headers, 3" Downpipe, 3" Midpipe, and 2.5" Greddy SP Elite axleback. There has to be some science behind this. How do I make the raspiness go away? @Ryan@Nameless Any ideas?

Tuning set up Friday the 21st btw. Hoping to have a new muffler by then that kills the rasp.

Add a resonator.

OrbitalEllipses · 03-12-2014, 09:39 PM

Check for leaks, but it's probably just that you need an additional resonator. I take it the GReddy doesn't mate to the stock midpipe? If it does, try that.

slava · 03-12-2014, 09:41 PM

There is a resonator in the midpipe and one in the downpipe as well....

FrsDuke · 03-12-2014, 09:44 PM

Is the fp catless?

slava · 03-12-2014, 09:47 PM

Quote:

Originally Posted by FrsDuke

Is the fp catless?

Yes. No cats.

Boofneenee · 03-12-2014, 09:49 PM

Would the 3" piping have anything to do with rasp even with a few and cat in the piping?

FrsDuke · 03-12-2014, 09:51 PM

I think we have solved this riddle...

OrbitalEllipses · 03-12-2014, 09:56 PM

Quote:

Originally Posted by slava

There is a resonator in the midpipe and one in the downpipe as well....

You need another. Or a larger one.

Quote:

Originally Posted by Boofneenee

Would the 3" piping have anything to do with rasp even with a few and cat in the piping?

Bingo. Swap to stock midpipe, guarantee it sounds infinity times better.

Quote:

Originally Posted by slava

Yes. No cats.

That looks like a cat in the FP. Second pipe from the top.

slava · 03-12-2014, 09:57 PM

I think I'll try throwing the stock midpipe on on sunday and see what happens.

peter_ind · 03-13-2014, 07:00 AM

I had my downpipe supplied with a Helmholtz Resonator to cut down on drone. Any chance a HH could help in this case?

StormTrooper · 03-13-2014, 07:03 AM

I think the rasp is slightly different issue.

3inch exhaust and not enough muffler to deal with it.

2.5inch shouldn't be as bad.

Turdinator · 03-13-2014, 07:51 AM

So if I were running a 2.5" overpipe does the different gasket taper things down or is there a half inch reduction in pipe diameter messing up my gas flow?

03-12-2014, 09:44 PM	#3772
FrsDuke Fanboy Join Date: Dec 2013 Drives: 2013 ultramarine frs Location: Tx Posts: 612 Thanks: 242 Thanked 337 Times in 203 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Is the fp catless? __________________ I'm done helping those who won't help themselves. TL;DR: -Duke

03-12-2014, 09:49 PM	#3774
Boofneenee Go-Kart Enthusiast Join Date: Aug 2013 Drives: Toyota Scion FRS Location: Yup Posts: 800 Thanks: 576 Thanked 309 Times in 188 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Would the 3" piping have anything to do with rasp even with a few and cat in the piping? __________________ FRS Current mods: K&N air filter, OFT, OFH, berk high flow cat front pipe, Q300 exhaust, lighter wheels

03-12-2014, 09:51 PM	#3775
FrsDuke Fanboy Join Date: Dec 2013 Drives: 2013 ultramarine frs Location: Tx Posts: 612 Thanks: 242 Thanked 337 Times in 203 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	I think we have solved this riddle... __________________ I'm done helping those who won't help themselves. TL;DR: -Duke

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03-12-2014, 12:15 PM	#3767
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,889 Times in 2,902 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Rear section of the midpipe going to the suitcase.

03-12-2014, 09:27 PM	#3768
slava Senior Member Join Date: Mar 2012 Drives: brZed Location: colorado Posts: 388 Thanks: 180 Thanked 362 Times in 136 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	Install went fine, everything fit real well. The Greddy SP elite and Namless stuff doesn't seem to mate up well at all. Sounds super raspy. [ame="http://www.youtube.com/watch?v=-dfIGW9zymA"]BRZ with Namless EL Headers / DP / MP / Greddy SP Elite - YouTube[/ame] I need some suggestions on how to fix this. It has the Nameless EL headers, 3" Downpipe, 3" Midpipe, and 2.5" Greddy SP Elite axleback. There has to be some science behind this. How do I make the raspiness go away? @Ryan@Nameless Any ideas? Tuning set up Friday the 21st btw. Hoping to have a new muffler by then that kills the rasp.

03-12-2014, 09:39 PM	#3770
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,889 Times in 2,902 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Check for leaks, but it's probably just that you need an additional resonator. I take it the GReddy doesn't mate to the stock midpipe? If it does, try that.

03-12-2014, 09:41 PM	#3771
slava Senior Member Join Date: Mar 2012 Drives: brZed Location: colorado Posts: 388 Thanks: 180 Thanked 362 Times in 136 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	There is a resonator in the midpipe and one in the downpipe as well....

03-12-2014, 09:57 PM	#3777
slava Senior Member Join Date: Mar 2012 Drives: brZed Location: colorado Posts: 388 Thanks: 180 Thanked 362 Times in 136 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	I think I'll try throwing the stock midpipe on on sunday and see what happens.

03-13-2014, 07:00 AM	#3778
peter_ind Junior Member Join Date: Apr 2013 Drives: Toyota 86 GTS Location: Adelaide, Australia Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I had my downpipe supplied with a Helmholtz Resonator to cut down on drone. Any chance a HH could help in this case?

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