|
05-19-2014, 06:47 AM | #1 |
Drives: Toyota Yaris 2009; 1.0 3 Cil. Join Date: Oct 2010
Location: The Netherlands
Posts: 495
|
Full straight midpipe ''iron''-sound?
Hey guys...
Last tuesday i've redone my straight midpipe in full stainless steel. Sound is awesome and I'm very happy about it, BUT: whenever I put my foot down or come near 3000-4000rpm, I hear this iron-kinda sound... pretty hard to explain... like when you put 2 iron bars against eachother and shake them around (lol wut?). hope someone knows what I mean! But is it normal for stainless steel midpipe? Thanks!
__________________
Speedbumps suck...!
|
05-19-2014, 01:39 PM | #2 |
Drives: 09 Meteoric Metallic 3 door HB Join Date: Jul 2010
Location: Atlanta Georgia
Posts: 419
|
Did you go up in diameter? It could be so heavy that is banging against something. Some stiffer exhaust hangers might do the trick.
|
05-19-2014, 02:17 PM | #3 |
Drives: 09 Blizzard Pearl RS LB Join Date: Sep 2009
Location: Calgary, Alberta
Posts: 371
|
What you are hearing is "raspiness" due to the removal of the resonator. When you remove the resonator, you have nothing to reflect some of the high frequency sound waves created by the exhaust gas if that makes sense...
__________________
“On a given day, a given circumstance, you think you have a limit. And you then go for this limit and you touch this limit, and you think, 'Okay, this is the limit'. And so you touch this limit, something happens and you suddenly can go a little bit further. With your mind power, your determination, your instinct, and the experience as well, you can fly very high.” ― Ayrton Senna |
05-19-2014, 05:49 PM | #4 |
Drives: Toyota Yaris 2009; 1.0 3 Cil. Join Date: Oct 2010
Location: The Netherlands
Posts: 495
|
Aaaah that explains it freestylin...! thanks :D And yes i did black griffin ;) but only 1cm bigger! ;) only got a 1.0 engine so.
__________________
Speedbumps suck...!
|
05-30-2014, 10:41 AM | #5 |
Drives: Toyota Yaris 2009; 1.0 3 Cil. Join Date: Oct 2010
Location: The Netherlands
Posts: 495
|
Is it possible to install a resonator back?
And where do I need to find one? Or how does it look like? and where should I install it?
__________________
Speedbumps suck...!
|
05-31-2014, 08:04 AM | #6 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
|
install it back in the same spot it came from.
|
06-02-2014, 06:10 AM | #7 |
Drives: Toyota Yaris 2009; 1.0 3 Cil. Join Date: Oct 2010
Location: The Netherlands
Posts: 495
|
Yeah but it also is used to be a mid-silencer... so If I put that back on... then it was useless to put in a straight midpipe.
are resonators also being sold seperatly?
__________________
Speedbumps suck...!
|
06-02-2014, 07:44 AM | #8 |
Form>Function
Drives: 07 Flint Sedan Join Date: Dec 2009
Location: Tampa
Posts: 4,018
|
you got a straight pipe exhaust to make it sound sportier but you dont want the sportier sound?
|
06-02-2014, 01:08 PM | #9 |
Drives: Toyota Yaris 2009; 1.0 3 Cil. Join Date: Oct 2010
Location: The Netherlands
Posts: 495
|
yes I do... but the raspiness can be an ugly sound... :(
__________________
Speedbumps suck...!
|
06-03-2014, 12:41 PM | #10 |
4 years of P90X!
|
I like the rasp of my straight pipe! BOSOZOKU!!
|
06-03-2014, 01:16 PM | #11 |
Form>Function
Drives: 07 Flint Sedan Join Date: Dec 2009
Location: Tampa
Posts: 4,018
|
ahhh ok, are you sure the raspiness is just the metal type? I have raspiness as well but it only developed about 6 months after having the exhaust and mine is because its so low, I scrape holes in my exhaust. You are slammed as well and may have the same issue, it might not only be your exhaust material
|
11-12-2014, 07:34 PM | #12 |
Drives: Vitz S 2007 LB Join Date: Feb 2013
Location: Kuala Lumpur, Malaysia
Posts: 131
|
I also have that rasp in my exhaust system, 4 1 extractor, mandrel bent 2 inch stainless 0.2mm thick, a S-flow midbox, 2 inch all the way till the rear joint, ending with the blitz nur spec S-FLOW rear box, its nice, till you floor it, theres this metal knocking.... couldnt pinpoint wheres it coming from...
|
11-12-2014, 08:10 PM | #13 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
|
That metal knocking sound is normal for the engine, but gets filtered by the resonator. If you run a Yaris engine with an open exhaust header (purely for fun) you will hear a horrible array of noises including that metal knocking sound.
If you read about what a resonator does, it is a precisely designed device which helps cancel out the worst frequencies of sound in the exhaust.
__________________
|
11-12-2014, 08:10 PM | #14 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
|
Did you use the proper spring bolts on the manifold connection?
What do the hangers look like? Sent from my iPod Touch |
11-12-2014, 08:29 PM | #15 |
Drives: Vitz S 2007 LB Join Date: Feb 2013
Location: Kuala Lumpur, Malaysia
Posts: 131
|
yes, i reused the original spring bolts in the manifold connection, incl. the rears as well, the hangers are all original...
scott, basically there is no solution for it? |
11-12-2014, 08:49 PM | #16 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
|
The solution would be to add an aftermarket resonator to your exhaust.
__________________
|
11-12-2014, 11:01 PM | #17 |
Obsessed with 1.5L
Drives: '10 PW Yaris Sedan Join Date: Feb 2011
Location: Westminster, MD
Posts: 907
|
Resonators are normally straight-thru factory and aftermarket. So adding one wont affect performance...if installed correctly and can even enhance scavenging due the cooling effect of the exhaust gases due the heat being dissipated thru the resonator.
I suggest the Flowmaster HP2...its a sorta hybrid straight-thru and works well at smoothing out the sound
__________________
-Greg...the Exhaust Freak. -10 PW sedan 107whp/110wtq, full exhaust, suspension bits, TRD LSD -06 Highlander 3mzfe Limited AWD -82 Malibu, 1uzfe swap -97 Tercel coupe, 1nzfe/4.31 -96 Tercel coupe, Turbo 5efe, autoX -96 Tercel 4dr |
11-18-2014, 06:46 AM | #18 |
Drives: 2010 Yaris Sedan Join Date: Oct 2013
Location: the good Carolina
Posts: 173
|
I thought about replacing mine with a Cherry Bomb, the tube style glass pack in the middle, and the Vortex at the rear.
__________________
2010 Yaris sedan, TRD CAT back (sport muffler only, really), OBX header (relocated front AF sensor to front pipe), OBX throttle plate spacer, K&N filter (in stock air box-for now), TRD struts and shocks, Mexico Rough Road Springs x 4, new Yota sway bar links front, slotted/drilled rotors and Maxx brakes front, Valvoline synthetic brake fluid, 3M undercoated, 16" Konig Feathers Michelin Pilot Sport AS 3 + Tires TRD rear sway bar, 4 GT Spec bars including: front strut brace 2 point, 4 point ladder brace, mid chassis brace and rear lower tie brace, rear hitch, [B] |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
2008 Yaris sedan ‘S’ sound deadening project. | Herbicidal | In Car Entertainment + Electronics (audio / video / alarm) | 155 | 09-04-2011 11:56 PM |
August 28th Shannonville Full Track lapping event! Touge.ca 11th event of 2010! | Touge.ca | Canada | 2 | 08-24-2010 04:25 AM |
July 10th Shannonville Full Track lapping event! Touge.ca 7th event of 2010! | Touge.ca | Canada | 0 | 06-23-2010 11:25 PM |
June 19th Shannonville Full Track lapping event! Touge.ca 5th event of 2010! | Touge.ca | Canada | 0 | 05-30-2010 04:39 AM |
Full Sound System For sale | cruz-gsr | Items for Sale by private party | 17 | 09-01-2009 12:16 PM |