Fordmods Logo

Making own exhaust? 

 

Page 3 of 4 [ 49 posts ] Go to page Previous  1, 2, 3, 4  Next

 
Posted: Mon Feb 05, 2007 7:26 pm 
Fordmods Junkie
Offline
User avatar

Posts: 3083

Joined: 22nd Sep 2005

Gallery: 13 images

Ride: EF

Location: Melbourne
VIC, Australia

cannon is bad word on these forums....
i assume since you said a dumper after, you used a "hotdog" resonator.

90db is not loud at all, a mate got epa'd with a two muffler redback and failed, got 92db.

that being said ive never had issues at police road stops, and my car poopson the 90db limit, some cops have actually said "sounds good"

 

_________________

Image
latest mod: A Service
MY BUILD THREAD

Top
 Profile  
 
 
Posted: Mon Feb 05, 2007 11:11 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 912

Joined: 6th Nov 2004

Ride: XR8

Power: 238 rwkw

Location: Perth
WA, Australia

Hehe, i operate a mandrel bender at work, im currently measuring and making mine

 

_________________

03 XR8 ute.... 251.5rwkw and counting
Image

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 6:05 pm 
Oompa Loompa
Offline

Age: 44

Posts: 35

Joined: 28th Nov 2004

Ride: EB 5.0

Location: sydney
NSW, Australia

hehe No it is a small HKS cannon hidden next to the spare wheel housing so nobody could see it, then we welded a 3" dump on to the end so all you see is just the tip pointing down. I work for a Japanese Import/Wrecker so just grabbed it off the shelf.

 

_________________

EB 5.0lt 2.5" Exhaust Kings Super Lows blah blah

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 6:19 pm 
Getting Side Ways
Offline
User avatar

Age: 28

Posts: 5889

Joined: 2nd Mar 2006

Gallery: 5 images

Ride: '14 Grand Cherokee

Location: Port Lincoln
SA, Australia

my exhaust is dumped at the diff but with pipe at the back so it looks legal :P and it has only one muffler, and that muffler pretty much has nothing in it :P im guessing my exhaust is at around 105dB. but the only thing i get from cops is a compliment for the nice exhaust sound :lol:

 

_________________

11/93 ED OPT20 GLi | Full Boat Spec

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 7:14 pm 
Stock as a Rock
Offline

Posts: 197

Joined: 8th Nov 2004

Ride: FG-XR6 EL EA '24 Dodge

Location: Tamworth
NSW, Australia

In2XG
Can you show some pictures of how it is done??

 

_________________

As Sigfried once said "Nein Nein Ninty Nine"

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 7:21 pm 
Smokin em up
Offline
User avatar

Age: 31

Posts: 264

Joined: 5th Jan 2007

Ride: E-Hybrid Falcon

Location: nowra, nsw
NSW, Australia

in2xg is it true that in the mandrel bend process you use a ball to maintain the inner diameter of the tube & the expense of thses 'balls' deters alot of pipe fabricators bending stainless ?

thats what i got told recently by the 'best exaust shop in town' & the best bend i could get in 2" s/s pipe was ugly at best.

just wanting to know if i do a road trip for mandrel bends am i expecting a long day ?

 

_________________

crow cam,cai,exaust,bbm,190 reg & el injectors,xr6 interior,guages,white cluster,pioneer/mtx stereo,big boot install w.i.p, 17"rims,koni/pedders shocks&springs with nolathane re-bush,ssv kit,stainless inserts,clear lights,t5 & short shifter,chardonay/pearl paint

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 7:48 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 912

Joined: 6th Nov 2004

Ride: XR8

Power: 238 rwkw

Location: Perth
WA, Australia

vibr8n wrote:
in2xg is it true that in the mandrel bend process you use a ball to maintain the inner diameter of the tube & the expense of thses 'balls' deters alot of pipe fabricators bending stainless ?

thats what i got told recently by the 'best exaust shop in town' & the best bend i could get in 2" s/s pipe was ugly at best.

just wanting to know if i do a road trip for mandrel bends am i expecting a long day ?


Hey mate, we at work use a mandrel that sits inside the pipe with as you say 1 or 2 balls on the end of it depending on pip size etc. This will give you a continuous I/D of the pipe right the way around of the bend. The most time consuming effort is actully setting the machine up to bend s/s pipes, so this is probably why fabricators tend to stay away from it. Once set it will usually bend all day providing all the pipe is the same ie: pipe O/D, I/D and wall thickness all play a part in being able to bend it right Ive got it done to an art now, usually takes me around 45mins to set the machine up, where as others it take them around 2-3hrs. Its a bit hard to explain how it works without showing pics of how it works so I will take some pics of it 2morro, on my camera phone and post them up to give u an indication as to how it works.

 

_________________

03 XR8 ute.... 251.5rwkw and counting
Image

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 8:22 pm 
Smokin em up
Offline
User avatar

Age: 31

Posts: 264

Joined: 5th Jan 2007

Ride: E-Hybrid Falcon

Location: nowra, nsw
NSW, Australia

that would be great thanks mate.

i just want pre-made mandrel bends for manifolds mostly but i had a job come up where i could definately benefit from mandrel bends, 3 meters of material.

 

_________________

crow cam,cai,exaust,bbm,190 reg & el injectors,xr6 interior,guages,white cluster,pioneer/mtx stereo,big boot install w.i.p, 17"rims,koni/pedders shocks&springs with nolathane re-bush,ssv kit,stainless inserts,clear lights,t5 & short shifter,chardonay/pearl paint

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 11:06 pm 
Getting Side Ways
Offline
User avatar

Age: 28

Posts: 2983

Joined: 15th Apr 2006

Gallery: 5 images

Ride: Falcon

Location: Aberfoyle Park
SA, Australia

Dude..i got a 2nd hand 2.5" catback from a wreckers for $60 plus $50 fitting and that included new rubber mounts and a warranty of 1 year. $110 for a car back is decent value.

But you can get them for $250 fitted.

If you make your own then go for it. Just i suggest 2 center mufflers and no rear resinator or 'hotdog'. Thats what i got on mine and its sweet as. The engine has a higher idle noice then the exhaust but sounds good and doesnt dron too much but at the same time sounds f**k great when you boot the mother f**k.

 

_________________

HOLDENS go like rockets. They fall apart in stages!!!

Top
 Profile  
 
 
Posted: Tue Feb 06, 2007 11:10 pm 
Smokin em up
Offline

Posts: 200

Joined: 3rd Oct 2005

Ride: XC GXL

Location: Townsville
QLD, Australia

so can anyone tell me any spesifications? also whouldnt a 2.5 inch lose to much back pressure? (In a dump pipe) so in a dum shouldnt i make it 2 inch?
Top
 Profile  
 
 
Posted: Wed Feb 07, 2007 10:01 pm 
Smokin em up
Offline
User avatar

Age: 31

Posts: 264

Joined: 5th Jan 2007

Ride: E-Hybrid Falcon

Location: nowra, nsw
NSW, Australia

my dump pipe is 4 inches.. it won't loose back pressure at the dump, will loose back pressure from anything over 2.5" like ricey exausts n missing mufflers but when done properly will be hard to loose to much.
i'm running a high flow cat, 2.5" non-mandrel bent system with one muffler, one hot dog & one res with a dump pipe. dumpies only change sound.

 

_________________

crow cam,cai,exaust,bbm,190 reg & el injectors,xr6 interior,guages,white cluster,pioneer/mtx stereo,big boot install w.i.p, 17"rims,koni/pedders shocks&springs with nolathane re-bush,ssv kit,stainless inserts,clear lights,t5 & short shifter,chardonay/pearl paint

Top
 Profile  
 
 
Posted: Wed Feb 07, 2007 10:14 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

I have a homemade exhaust on my 88EA sedan. The extractors are Pacemaker, the CAT is a modified BMW unit, with twin 2&1/4" to the main muffler, then a single 2&1/2" tailpipe section. I haven't had it sound tested, but it doesn't drone, and its not loud. I made the muffler out of S/steel.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
Posted: Wed Feb 07, 2007 10:56 pm 
Fordmods Junkie
Offline
User avatar

Posts: 3083

Joined: 22nd Sep 2005

Gallery: 13 images

Ride: EF

Location: Melbourne
VIC, Australia

Quote:
dumpies only change sound


your kidding right?

your saying if i change my oval tip to a round tip my cars sound will change?

 

_________________

Image
latest mod: A Service
MY BUILD THREAD

Top
 Profile  
 
 
Posted: Thu Feb 08, 2007 9:10 am 
Parts Gopher
Offline

Age: 51

Posts: 94

Joined: 9th Jan 2006

Location: Sydney
NSW, Australia

Have a chat to Dianne at Genie Exhaust in Myaree. Ask her nicely and I'm sure she'll let you have a scrounge through the offcuts bin. Or will supply GOOD mandrel bends at realistic prices.

She knows more about performance exhausts than most people in the industry.

Cute, too :wink:
Top
 Profile  
 
 
Posted: Thu Feb 08, 2007 8:33 pm 
Smokin em up
Offline

Posts: 200

Joined: 3rd Oct 2005

Ride: XC GXL

Location: Townsville
QLD, Australia

ok people recomendations on size amount of mufflers bends ect -im trying to draw up some desighns at the moment.

on an off topic note in the same class we are building a steam powered go kart...dunno what to think there....but aparantly we have just discovered that we have the ability to to make our own rims with some 25 grand machine ..wheird
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 3 of 4  [ 49 posts ]  Go to page Previous  1, 2, 3, 4  Next

Who is online

Users browsing this forum: No registered users and 23 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Mon Dec 18, 2017 7:49 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names