hotdog mufflers
iam contemplating on taking out my muffler and putting just a hotdog in. just wondering if anyone has done that? if i do it will there be any power lost? as in loosing back pressure or anything? and i know it will be hell loud.
just curious thats all.
I want to do the same on my VS Ute but i dont have the guts to do it without someone else doing it before meOriginally Posted by Ross D.
keep me updated
well i want to find out if it will lose any back pressure first? or if it will lose enough for it to affect performance
Jizz in my pants
na will be all good, you will have a couple of mufflers most likely, the sound will depend of which one you replace with a hotdog, if you replace both it will be loud, I used to have a car with just 1 hotdog in the whole system and it was loud. won't be any problems with back pressure, I have had cars that get worse (exhaust valves burning out) but that has been after about 2 years.
What you think about 2 large long hotdogs? Replacing the two stock mufflers?
Jizz in my pants
it'll be loud, you gotta remember that those hot dogs are basically like a straight pipe, they do have some sound resonating stuff around the inside diameter, I would suggest buying a decent good flow muffler (proper muffler with baffles etc) and a hot dog and see what that sounds like, its hard for me in NZ as we don't have to have catalytic converters on our cars, so thats the 1st thing I always get replaced with hotdog or straight pipe, unsure for you guys as you have to have a cat converter.
i've only got one muffler now and it isnt even loud. sounds pretty nice tho. hmm not to keen on it now that you said **I have had cars that get worse (exhaust valves burning out) but that has been after about 2 years.**
what would that be from?
My current exhaust consists of the centre resonator/muffler and is dumped before the diff since its a ute its legal but ill agree mine isn't even loud.
When i took it for a test run around the block with nothing from the cat onwards it sounded sick, and also had a little burble on deceleration similar to a V8 but a miniature version
I don't think you could do anything to harm the engine by reducing back-pressure except sacrifice a little bit of low end for a better mid range and top end, i mean look at V8 Supercars, Formula One, Touring Cars etc none of these have mufflers and it doesn't harm them except they have less bottom end grunt.
But i may be wrong? I would like some opinions as i gotta do something to make my ute sound meaner asap
Steve.D what you think about Exhaust Cutous lol, http://www.youtube.com/watch?v=QJ-t0...eature=related
Matt.
Last edited by jokerflingo; 24-04-2009 at 05:18 PM.
think you've mistaken me for my brother. i was even thinking of getting a stock exhaust from a exhaust place cause aren't they 2 1/4? and get all the mufflers cut out of that and only one hotdog and dump it just after or before the diff. would sovle the back pressure wouldnt it cause of the slightly smaller piping?My current exhaust consists of the centre resonator/muffler and is dumped before the diff since its a ute its legal but ill agree mine isn't even loud.
When i took it for a test run around the block with nothing from the cat onwards it sounded sick, and also had a little burble on deceleration similar to a V8 but a miniature version
I don't think you could do anything to harm the engine by reducing back-pressure except sacrifice a little bit of low end for a better mid range and top end, i mean look at V8 Supercars, Formula One, Touring Cars etc none of these have mufflers and it doesn't harm them except they have less bottom end grunt.
But i may be wrong? I would like some opinions as i gotta do something to make my ute sound meaner asap
Steve.D what you think about Exhaust Cutous lol, YouTube - HEMI Dual Exhaust Cutout Valves- Engine Running
Matt.
Shouldn't be any problem and sorry Ross.D i was reading the group buy thread and forgot that he posted on your account once.
Hey guys, interesting thread. At the moment my car is 100% stock. i have not gone for a roady yet because i need some new tyres. Im just wondering if i was to replace my 2 mufflers with hotdogs would it be road worthy?
Thanks Terry
If you mean will it pass a R.W.C which i think you eastern states people have to have, i would say no, too loud
Rolling on 4 again :D
I would imagine it would be too loud to pass, also you have to keep the noxious emissions to legal standard.
Just as a side note, all this talk about sacrificing back-pressure is not technically necessary. Cars do not need exhaust back pressure, it is not a good thing to have. What you want is to find the balance between a smaller pipe which will produce back pressure, and a larger pipe which will allow the gasses to cool too quickly and lose velocity, hence creating a restriction.
To the best of my knowledge, a single 2 1/4", maybe 2.5" system at most, is about right for an ecotec, not sure about the 5L. I wouldn't know what sort of difference having hotdogs would make, I would think you would still run a 2 1/4" system though.
I have HM headers + a single 2.5 inch system with a hot dog at back on my 5L and it sounds pretty good i.e. not to loud but gets that V8 bark under heavy acceleration and slight back fire when backing off.
Mmmmm V8
So is the hotdog the only muffler or does it have a centre muffler/resonator and rear hotdog?
...sorry it also has a sports muffler (and cat.) together with the rear hot dog. At a recent sound off it put out 120db's, but I would expect it to be a bit louder under load.
Last edited by vsv8berlinawag; 27-04-2009 at 11:18 PM.
Mmmmm V8
Building my 2nd bns VS ute, had just the one hotdog on the last one and imo it sounded shit house, attracted unwanted attention, and just annoyed me at the end of the day.
I'd definitely have at least a sports muffler as well, but that is just my opinion.
Both of mine have had the Ecotec also.
I have a coby hotdog resinator sitting around not doing anything, and am thinking of welding some flanges on the end and swapping it in place of my cat converter. I would like to know if I will need to put a heat shield over it to stop it cooking the underside of my car. Anyone else done this?
vr 355
when i had my v6 manual i had the stock exhaust size with a highflow cat and dumped after the irs wishbone no hotdogs or mufflers just pipe and thats sounded hot and i never got defected or even looked at by the fellers in blue
when i get sad, i just stop being sad and be awesome...true story!
Awesome this is what i have been wanting to do but preferably with at least one hot-dog so if i did get any grief i could say it does have at least 1 muffler
So your saying you never really got looked upon with a high flow cat and straight through pipe? Did you also have extractors? I have to say when i did go round the block a few times with my exhaust unbolted from the cat backwards i did like it
I myself wouldn't think it would be that loud or create that much attention unless you are stupid in front of the boys in blue but many people on here disagree i see
I currently only have the one muffler which is the centre resonator and well it doesn't even seem very loud at all and its dumped at the diff.
Im thinking stock size pipe to keep some back pressure for low end with a couple of hotdogs with a sexy looking tip
What you think sqweek and was this the old Buick or newer Ecotec? and how bad was the drone? i presume you could control it a bit with a manual which ive luckily got and i also presume it would be reduced if it were a full exhaust and not dumped?
Thanks
Matt.
got boost
my vr v6 has 1 muffler and its a hotdog its not as loud as ya think mine is very deep and you can hear me coming but it wont bring cop attention onto ya and my car got yellowed a few months back for being to low and my car passed the pits with the hotdog on.cant wait to add extracters lol should sound even better!
and i honestly didnt feel any power loss ...and 3 of my mates have done it to there cars because they love the sound of mine i reckon it is worth doing only cost me like 70 bucks for a hotdog put on and i have seen no downsides and it is the exact note i wanted out of my six.
Drop Clutch
Alright that's it you've done it nowI need the details of what your exhaust system consists of? What type of hotdog and what brand as i would also want a deep note like yours and what size piping? Standard CAT? Standard Headers? And anything else i have left out.
Last of all what would you think would be a decent price for your exhaust system? As currently my standard single centre muffler/resonator dumped at the diff doesn't cut it
And is there much drone and whats it like even though usually its controllable in a manual? And what do you think too hotdogs would sound like? Better or Worse?
Thanks
Matt
I replaced the rear mufler on a vn v6 wagon i had. I was asked a lot if it was a v8!! I will be doing the same with my vr now, as when you replace only the rear it has a nice deep growl. not like just removing the rear mufler and putting in a straight pipe, that sounds crap!
my v6 ute has extractors , high flow cat , 2 & 1/2" thru to only a hotdog at the end .
sounds good if it's driven to suit this .
if you go thru the gears to soon it nearly sounds like a truck .... sort of . need to rev it out just a tad .
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