Possible fix for rasp!!! I might have found something

mjohn617 · 05-28-2011, 09:41 PM

IF HAVE QUESTIONS AFTER READING THIS, CHECK THE POST FROM LS1TECH.

WWW.LS1TECH.COM-HOW TO ELIMIATE RASP

I have been researching this for almost a year now, on and off. I just recently put LTH's on my Tacoma and got the rasp. So I started some more research.

I stumbled upon this post on a different forum here and am very convinced this will work!!

Classic Chambered Exhaust Inc. - Home Page

With the grain

Against the grain - This would be the proper way to install - contrary to the manufacture

It is called the Powerstick and from what I have been reading you need to be installed backwards with cases of heavy rasp.

Classic Chambered Exhaust...PowerStick

UPDATE 5/31/2011:

I have ordered one 25" Powerstick for my 2005 Tacoma, I will post some before and after videos of the sound. I am not sure I am ready to do this to the Z yet as I did put my cats back on and the car sounds wonderful with Stillen CBE.

AlphaSnacks · 05-30-2011, 07:23 PM

Wouldn't this create a restriction in flow, and thus power?

roplusbee · 05-30-2011, 09:26 PM

I guess that depends on the internal diameter. If it stays constant with the rest of the piping, it should eliminate certain sounds and flow about the same as the rest of the system.

In for updates..........

Jordo! · 05-30-2011, 10:30 PM

Why would you want the gasses flowing against the grain?

kdo2milger · 05-30-2011, 10:37 PM

reminds me of this...

( Click to show/hide )

frost · 05-30-2011, 10:50 PM

Quote:

Originally Posted by kdo2milger

reminds me of this...

( Click to show/hide )

Bwahahah, that will clog the pipe alright.

kdo2milger · 05-30-2011, 10:51 PM

Quote:

Originally Posted by frost

Bwahahah, that will clog the pipe alright.

or really hurt your wanker

roplusbee · 05-30-2011, 11:18 PM

Ouch...........

b1adesofcha0s · 05-30-2011, 11:20 PM

Quote:

Originally Posted by roplusbee

Ouch...........

dwntwnall4u · 05-31-2011, 02:14 AM

Interesting.

mjohn617 · 05-31-2011, 11:01 AM

Quote:

Originally Posted by Arnold K.

Wouldn't this create a restriction in flow, and thus power?

Well this would be after you have removed your cats....so it would be to either take the hit on power or sound. I would take some minimal losses to get rid of the that crappy rasp.

This data is for the exhaust going with the grain on a engine producing more torque than our cars ever will, I am pretty sure you are going to see very little added loss with either direction.

fuct · 05-31-2011, 05:22 PM

@5500 RPM they see a 100+HP increase????? whaaaa?????

mjohn617 · 06-16-2011, 12:06 AM

I just got my muffler in and installed on my Toyota Tacoma last week, the sound is freakin sweet. I had removed my cats, installed long tube headers and TRD Cat back. It sounded like **** to say the least. With the powerstick installed right where the piping merges to the muffler, I lost all the rasp and gargling, the exhaust is very conditioned.

I don't plan on doing this anytime soon on the Nismo, but if anyone is out there needing some sort of light....check it out.

05-28-2011, 09:41 PM	#1 (permalink)
mjohn617 Base Member Join Date: Jun 2010 Location: California Posts: 132 Drives: 2014 Lexus ES350UL Rep Power: 416	Possible fix for rasp!!! I might have found something IF HAVE QUESTIONS AFTER READING THIS, CHECK THE POST FROM LS1TECH. WWW.LS1TECH.COM-HOW TO ELIMIATE RASP I have been researching this for almost a year now, on and off. I just recently put LTH's on my Tacoma and got the rasp. So I started some more research. I stumbled upon this post on a different forum here and am very convinced this will work!! Classic Chambered Exhaust Inc. - Home Page With the grain Against the grain - This would be the proper way to install - contrary to the manufacture It is called the Powerstick and from what I have been reading you need to be installed backwards with cases of heavy rasp. Classic Chambered Exhaust...PowerStick UPDATE 5/31/2011: I have ordered one 25" Powerstick for my 2005 Tacoma, I will post some before and after videos of the sound. I am not sure I am ready to do this to the Z yet as I did put my cats back on and the car sounds wonderful with Stillen CBE. Last edited by mjohn617; 05-31-2011 at 11:33 AM.

05-30-2011, 09:26 PM	#3 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	I guess that depends on the internal diameter. If it stays constant with the rest of the piping, it should eliminate certain sounds and flow about the same as the rest of the system. In for updates.......... __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

05-30-2011, 10:30 PM	#4 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Why would you want the gasses flowing against the grain? __________________ Enjoy it. Destroy it.

05-30-2011, 10:37 PM	#5 (permalink)
kdo2milger OG Priesthood Join Date: Feb 2009 Location: Fargo, ND Posts: 17,859 Drives: NISMO T Rep Power: 59	reminds me of this... ( Click to show/hide ) http://www.the370z.com/anything-goes...ml#post1142061 __________________ Project *NISMO*

05-30-2011, 11:18 PM	#8 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	Ouch........... __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

05-30-2011, 07:23 PM	#2 (permalink)
AlphaSnacks A True Z Fanatic Join Date: Jan 2010 Location: Windermere, FL Posts: 1,618 Drives: '13 XKR-S, '10 370Z Rep Power: 18	Wouldn't this create a restriction in flow, and thus power?

05-31-2011, 02:14 AM	#10 (permalink)
dwntwnall4u Base Member Join Date: Dec 2010 Location: San Diego/ Hawaii Posts: 158 Drives: 2011 370Z AT,S,T,PW Rep Power: 15	Interesting. __________________ Working my *ss off for a GTM Rotrex SC to go with my 2006 URD Rotrex SC 4x4 Tacoma.

05-31-2011, 05:22 PM	#12 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 24	@5500 RPM they see a 100+HP increase????? whaaaa?????

06-16-2011, 12:06 AM	#13 (permalink)
mjohn617 Base Member Join Date: Jun 2010 Location: California Posts: 132 Drives: 2014 Lexus ES350UL Rep Power: 416	I just got my muffler in and installed on my Toyota Tacoma last week, the sound is freakin sweet. I had removed my cats, installed long tube headers and TRD Cat back. It sounded like **** to say the least. With the powerstick installed right where the piping merges to the muffler, I lost all the rasp and gargling, the exhaust is very conditioned. I don't plan on doing this anytime soon on the Nismo, but if anyone is out there needing some sort of light....check it out. levani041491 likes this.

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