Damn Muffler Bent!

OZFORDAU · 12-03-2006, 05:16 PM

Hey,

I have a slightly bent muffler and there is also a hole in it about the size of a 5-10 cent piece! I seem not to be getting as much kms out of the tank or either lpg or petrol anymore! More so on lpg cause i dirve on lpg!

Cheers

Simon :eclipsee_

Casper · 12-03-2006, 05:17 PM

ok.. maybe replace it?

OZFORDAU · 12-03-2006, 05:23 PM

Is it making my petrol consumption worse is it????? If im going to replace it im going to get a 2.5" from the cat back!

Cheers

Simon

Casper · 12-03-2006, 05:27 PM

Quote:

Originally Posted by OZFORDAU

Is it making my petrol consumption worse is it????? If im going to replace it im going to get a 2.5" from the cat back!

Cheers

Simon

yes. Its causing turbulence in the muffler as the flow has been disrupted. Think of it as the potato up the tailpipe issue.. just not anywhere near as bad. What it does is reduce the efficiency of your exhaust therefore increasing consumption of fuel for the same efficiency. $250 for a cat back is the way to go.. sounds better to (and might actually drop 0.1 off your 0-100 time)

OZFORDAU · 12-03-2006, 05:31 PM

Quote:

Originally Posted by Casper

yes. Its causing turbulence in the muffler as the flow has been disrupted. Think of it as the potato up the tailpipe issue.. just not anywhere near as bad. What it does is reduce the efficiency of your exhaust therefore increasing consumption of fuel for the same efficiency. $250 for a cat back is the way to go.. sounds better to (and might actually drop 0.1 off your 0-100 time)

LOL, 0.1 i guess is better then nouthing lol! Ok then im losing about 150kms from the lpg tank just letting you know! And having a 2.5" cat back will that drink the juice up any faster?

Thanks casper

Cheers

Simon

Casper · 12-03-2006, 05:35 PM

no, despite popular belief, "power mods" also are often the best economy mods.
Think of it this way. (this is an example and is not technically totally correct)
You engine makes 100rwkw at peak. You add a cat back and you make 105rwkw. Without changing anything inside the engine you have increased engine efficiency 5%.
Therefor it takes 5% less effort for the engine to produce the same amount of power. 5% less effort means 5% less fuel. So by increasing performance on the same amount of fuel.. you have decreased fuel usage for an equal amount of performance.

Make sense?

OZFORDAU · 12-03-2006, 05:42 PM

Quote:

Originally Posted by Casper

no, despite popular belief, "power mods" also are often the best economy mods.
Think of it this way. (this is an example and is not technically totally correct)
You engine makes 100rwkw at peak. You add a cat back and you make 105rwkw. Without changing anything inside the engine you have increased engine efficiency 5%.
Therefor it takes 5% less effort for the engine to produce the same amount of power. 5% less effort means 5% less fuel. So by increasing performance on the same amount of fuel.. you have decreased fuel usage for an equal amount of performance.

Make sense?

Makes complete sense! Thanks Casp! Ok now where do i go to buy a 2.5" cat back? And where to get it installed? And is there any brand i should be after?

Cheers

Simon

Casper · 12-03-2006, 05:44 PM

any muffer place, same place will install it, any brand, its just mandrel bent pipe.

OZFORDAU · 12-03-2006, 05:46 PM

Ok so is $250 the max amount id come to spend on a 2.5 cat bak? What about 3" cat back?

Cheers

Simon

stiddy · 12-03-2006, 06:01 PM

with the cat back exhaust you'll gain that 150km's per tank back and then some more than likely..
well it depends, will work out even cause you'll be driving it harder to hear the exhaust ;) haha

OZFORDAU · 12-03-2006, 06:08 PM

Quote:

Originally Posted by stiddy

with the cat back exhaust you'll gain that 150km's per tank back and then some more than likely..
well it depends, will work out even cause you'll be driving it harder to hear the exhaust ;) haha

Haha, very true! Can't wait for it to be on! You reckon Mr. Muffer will be ok?

Casper · 12-03-2006, 06:18 PM

perfect

OZFORDAU · 12-03-2006, 08:02 PM

2.5" or 3" from cat back?

Cheers

Simon

Casper · 12-03-2006, 08:05 PM

Quote:

Originally Posted by OZFORDAU

2.5" or 3" from cat back?

Cheers

Simon

just take it to G&D and get the whole system done.. then have some FUN!! As far as insurance is concerned cat back or headers/cat back is all the same

OZFORDAU · 12-03-2006, 08:08 PM

Thanks....I'll G & D tomorrow!

Cheers

Simon

PS: Im still wanting to know if i should get a 2.5" or 3"? And what kind of prices should i expect to pay installed for eithe of them?

Casper · 12-03-2006, 08:11 PM

Quote:

Originally Posted by OZFORDAU

Thanks....I'll G & D tomorrow!

Cheers

Simon

PS: Im still wanting to know if i should get a 2.5" or 3"? And what kind of prices should i expect to pay installed for eithe of them?

just ask G&D for the one that will give the most performance. Stuff it, if you are paying money, get it done by those who know what works and not in it just to slap a muffler on auntie Doris's magna.
Tell them you are from aufalcon.com.. Glenn or Matt will help you out straight away.

GK · 24-03-2006, 12:31 PM

Quote:

Originally Posted by Casper

just take it to G&D and get the whole system done.. then have some FUN!! As far as insurance is concerned cat back or headers/cat back is all the same

Casper, just reading back over the thread a bit.

Are you saying that headers and 2.5 all the way back will add nothing to the insurance bill?

I hope you are? By the way, what insurance company are you with? Feel free not to answer though!

Cheers,

GK

Casper · 24-03-2006, 12:33 PM

Quote:

Originally Posted by GK

Casper, just reading back over the thread a bit.

Are you saying that headers and 2.5 all the way back will add nothing to the insurance bill?

I hope you are? By the way, what insurance company are you with? Feel free not to answer though!

Cheers,

GK

I'm with RACV for the moment (Shannons is looking aweful good though for renewal). As far as RACV are concerned exhaust is exhaust. A Cat back is an exhaust mod, a cat back and headers is an exhaust mod. They treat the 2 as basically the same mod.

ozfordau2 · 23-03-2006, 05:19 PM

broooooooooooooooooooooooooooooooooom brooooooooom broooooooom thats a car with a 37inch from header back

OZFORDAU · 23-03-2006, 05:33 PM

Mate, ИИИИ off!

Casper · 23-03-2006, 05:49 PM

Quote:

Originally Posted by ozfordau2

broooooooooooooooooooooooooooooooooom brooooooooom broooooooom thats a car with a 37inch from header back

oh, and your Dads R8 is a crapper :P (Yes, I KNOW, you play nice now cause I also traced the IP to an address now)

OZFORDAU · 23-03-2006, 05:52 PM

I might go there and key the piece of ИИИИ R8! lol.....BTW he's made a new account....It's Nitro_Circus! Burn him now.... :evilking:

Cheers

Simon

Casper · 23-03-2006, 05:39 PM

Troll must die.. goodbye ozfordau2.

stiddy · 23-03-2006, 05:44 PM

Quote:

Originally Posted by ozfordau2

broooooooooooooooooooooooooooooooooom brooooooooom broooooooom thats a car with a 37inch from header back

Im going to become a millionaire from making a device that allows you to stab people in the face over the internet.

:

OZFORDAU · 23-03-2006, 05:46 PM

lmao haha! Good! I'll be your business partner!

Cheers

Simon

Nitro_Circus · 23-03-2006, 05:48 PM

What a downy, honestly....hey simon ИИИ we still up for fishing??

Nitro_Circus · 23-03-2006, 05:48 PM

What a downy, honestly....hey simon we still up for cruisin i have the drill ready for the old muffler lol

Nitro_Circus · 23-03-2006, 05:49 PM

ahh double posy, my bad

Nitro_Circus · 23-03-2006, 05:51 PM

Hey Casper man, its ozforau2 just gettin bak at ozfordau for a prank a while ago. my old mans crapper can beat urs....if u got my adres....wat it is??? pm me with it...cyaaaaaa

Nitro_Circus · 23-03-2006, 05:53 PM

burn me, ill make more and more and more haha