Silencer

[davib]

Hey its me again !

I've heard a lot of exhaust problems and all

but i've heard people putting on a silencer and increase power...

I would like to know if anyone here who can quote me a price on a silencer

and where to get them?

Overall, any information on silencers (like if its a universal adaptor) would be great

david

[Eug]

silencer doesn't increase power.

to put it simply, it'll make an overly large diameter exhaust smaller, i.e. 3" and by doing so increases the volumetric vacuum efficiency of said large exhaust.

most exhausts have to be designed with a silencer.

as for quotes, search the regular online performance shops or head down/call your local exhaust shop.

simple.

/thread to be closed.

[inthisglass]

i have a silencer and all it does is make the exhaust note quieter and less aggressive/cool sounding

it does not affect the power at all. so i drive with it out so it sounds better:)

[davib]

thanks for the info EUG

sory for the n00b-ness, i just dont know many things!

thanks to u to intheglass... where'd u get ur silencers?

[inthisglass]

any place that sells mufflers should have them

they are just a piece of pipe with a sort of round dish that bolt straight into the tip of your cannon muffler

you could get the same effect by getting a flat bit of metal the same size as your muffler tip and drilling a hole in the middle of it. then stuff that into you exhaust..

[NFSR33]

wouldnt worry about a silencer....

get an Oval style resonator put in....

will make it quieter, and give it a gruntier sound....

i originally had a 4inch canon put on a 2.25inch exhaust...was running crap

put the silencer on, ran better...

took the silencer off and added an oval resonator, runs better

next, reducing cannon size, keeping piping and resonator...run best.....

[Yidz]

Had one, took it out and it sounds so much better. Would never put it back in

[(OO)SKYLINE(OO)]

Cuz you got an N/A car, if you put a 3" exahaust / large cannon muffler, you are loosing back pressure volumetric efficiency. By placing the Silencer in, it narrows the In-pipe of your cannon muffler and reduces the size back down to say 2.5" so your not loosing back pressure volumetric efficiency. = Get you power back up.

Silencers, pretty much a metal cylender, goto any exhaust place and they can make / measure one up for you. Or if you bought an aftermarket exhaust, they usualy come with a silencer.

Edited February 23, 2008 by Eug
correct terminology

[Eug]

i have made the appropriate edits in the above post...

it's funny seeing people who know about something without even knowing the correct terminology or even how to spell. hardly makes the information provided seem credible and will only confuse others from my personal point of view.

while this isn't a direct attack on (00)SKYLINE(00) i am merely using him/her as an example to inform others of the correct wording for future reference, more accurate search results and to prevent confusion with new forum members.

cheers

eug

p.s. - the thread will remain open, but the ideology that a silencer will increase power is not entirely correct. in the instance of an excessively large exhaust you will regain the response lost by installing a silencer into said excessively large exhaust. however on a well suited exhaust with efficient volumetric vacuum/scavenging characteristics (2.0" ~ 2.5") installing a silencer will more than likely create back pressure, and thus decreasing the efficiency of the exhaust.

just remember, back pressure is bad - you do not want it. increasing the volumetric efficiency of an exhaust will decrease back pressure.

[(OO)SKYLINE(OO)]

Thanks Eug

[KezR33]

Just want to make sure, but if you have a set inlet size (say 2.5") the muffler tip size only affects the noise that comes out of your car and has nothing to do with performance or any other factor, correct?

This is of course assuming the the muffler tip is at least 2.5" too.

Thanks.

[EMZ R33]

Hi guys, i had a silencer on my 6" cannon with a 4" tip

I use it for the longer trips at higher speeds to keen the fiance from getting a headache!!!

Ive stopped using it now though because it left a whole lot of black exhaust crap around the exhaust edge and silencer.

It looks good though, but id only ever use it as a show accesory, not much else.

You can kinda see the silencer in this pic

http://s21.photobucket.com/albums/b258/EMZ...nt=IMG_2706.jpg

And compaired to without

http://s21.photobucket.com/albums/b258/EMZ...nt=IMG_2523.jpg

EMZ

[SkyKC]

p.s. - the thread will remain open, but the ideology that a silencer will increase power is not entirely correct. in the instance of an excessively large exhaust you will regain the response lost by installing a silencer into said excessively large exhaust. however on a well suited exhaust with efficient volumetric vacuum/scavenging characteristics (2.0" ~ 2.5") installing a silencer will more than likely create back pressure, and thus decreasing the efficiency of the exhaust.

just remember, back pressure is bad - you do not want it. increasing the volumetric efficiency of an exhaust will decrease back pressure.

Damn, as you know I put 2.5" system recently,,,but it wasnt with a oval resonator.........its with a donut resonator, so when i run without a silencer it was sooooo loud, So i put the silencer back in so it runs smooth.........

So if i put a oval resonator instead of a hotdog one, i wont need to put a silnecer and create any back pressure ya?

Just thinking, do I have to get rid of the donut one to replace oval one or can I just add oval one with hotdog one (keep both)?

Cheers

[Eug]

that was way too confusing... oval donut oval donut oval donut.

to be honest, just do what you think feels right. there is no perfect setup, not unless you want to invest the time and money on bench flow tests and buying different exhausts. it's alot of R&D involved.

the 2.25" - 2.50" is a general rule of thumb!

[SkyKC]

that was way too confusing... oval donut oval donut oval donut.

to be honest, just do what you think feels right. there is no perfect setup, not unless you want to invest the time and money on bench flow tests and buying different exhausts. it's alot of R&D involved.

the 2.25" - 2.50" is a general rule of thumb!

hehehe my bad.......just thought that using a oval resonator will reduce noise better than hotdog resonator, thats all.

Cheers

[Lupes]

Got a question regarding this.

I know that if you put a 3" exhaust system on a N/A car it will lose power as it doesn't have enough volumetric efficiency.

I'm getting a cannon put onto my car this Friday, nfi what size it is, I'll post a pic up to help. But anyway, the pipe from the flange back towards the cannon is the same as stock size and the cannon increases in size a fair bit. Will I lose power from this?

[inthisglass]

if the rest of your exhaust is stock size then the cannon wont give you much gain

the only thing you will notice is the sound, not the power..

[Lupes]

Ok cool, cheers for that

Didn't expect a power gain.

I was thinking maybe the opposite could happen because of the size of the cannon itself.

[NISZILA]

I have a silencer in mine. With the silencer out, there is a huge increase in noise, and a slightly noticable gain in power. I keep the silencer in for the road, but take it out for skid pan days etc. Car sounds way more angry and aggressive with the silencer out.

[DiNoBoNeS]

Yes i pulled mine perm out but in the back of the car..... so if i do get pulled over b4 i get a yellow i can knock it back in and bult it in and start it up and the police should be kewl with it.

Even so ur car can go up to nine decibel in sound and with it out i do not think it hits this and just drive like a sane person if u floor it police will grab u on the flooring and will not worry about the sound.

HaPpY Driving people