removing muffler?
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From: 626, ca, usa
Re: removing muffler? (thatnikkashoD)
ummmm.... just don't remove it. upgrade maybe, but don't remove it. if you drive it on the street, you'll get pulled over and the cops will take your car for some reason... if you race your car on the track, you should have an idea of what kind of set-up to run already..... not saying your an idiot or anything but......
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From: P Town Yo, ca
Re: removing muffler? (lvtecraverl)
You will not gain any power, if anything you might even loose a little. The engine relies on a certain amount of back preasure to work correct, and while the cat will provide a good amount of back preasure you will still loose some without the muffler.
The biggest issue will be the noise. It might be funny to take it off when you are about to replace it just to see how loud it would be, but it is not a wise idea to leave it like that. If you did not get pulled over the first day i would be surprised. within a week you would be just about 100% pulled over. Even with a quality exhaust system you still run the risk of being too loud.
The biggest issue will be the noise. It might be funny to take it off when you are about to replace it just to see how loud it would be, but it is not a wise idea to leave it like that. If you did not get pulled over the first day i would be surprised. within a week you would be just about 100% pulled over. Even with a quality exhaust system you still run the risk of being too loud.
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From: Mustafar
Re: removing muffler? (Racermech)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Racermech »</TD></TR><TR><TD CLASS="quote">You will not gain any power, if anything you might even loose a little. The engine relies on a certain amount of back preasure to work correct.</TD></TR></TABLE>
That's actually a commonly held misconception. Unbolting the exhaust will indeed yield gains over the restrictive stock system, but as you've noted, it will also be exceptionally loud.
That's actually a commonly held misconception. Unbolting the exhaust will indeed yield gains over the restrictive stock system, but as you've noted, it will also be exceptionally loud.
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From: Hardparkin in, IA, United States
Re: removing muffler? (Padawan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan »</TD></TR><TR><TD CLASS="quote">
That's actually a commonly held misconception. Unbolting the exhaust will indeed yield gains over the restrictive stock system, but as you've noted, it will also be exceptionally loud. </TD></TR></TABLE>
its not a misconception, it just has to do with where the power is, it will decrease low to mid range tq but probably let loose a few high end ponies
That's actually a commonly held misconception. Unbolting the exhaust will indeed yield gains over the restrictive stock system, but as you've noted, it will also be exceptionally loud. </TD></TR></TABLE>
its not a misconception, it just has to do with where the power is, it will decrease low to mid range tq but probably let loose a few high end ponies
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From: Mustafar
Re: removing muffler? (nate_2k5)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 »</TD></TR><TR><TD CLASS="quote">it will decrease low to mid range tq but probably let loose a few high end ponies</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rickdrizzle »</TD></TR><TR><TD CLASS="quote">you will have VERY shitty low end</TD></TR></TABLE>
I have yet to see a dyno chart showing a power loss anywhere on the curve when using a large-diameter or open exhaust setup compared with a stock setup.
Here you'll see the effects of running open header versus a well-designed full exhaust: Not that there is no point where the open header is making less low-end power (though some further tuning at the VTEC engagement would have been needed): https://honda-tech.com/zerothread?id=1381051
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rickdrizzle »</TD></TR><TR><TD CLASS="quote">you will have VERY shitty low end</TD></TR></TABLE>
I have yet to see a dyno chart showing a power loss anywhere on the curve when using a large-diameter or open exhaust setup compared with a stock setup.
Here you'll see the effects of running open header versus a well-designed full exhaust: Not that there is no point where the open header is making less low-end power (though some further tuning at the VTEC engagement would have been needed): https://honda-tech.com/zerothread?id=1381051
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From: CenCal, united states
Re: removing muffler? (Padawan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan »</TD></TR><TR><TD CLASS="quote">
I have yet to see a dyno chart showing a power loss anywhere on the curve when using a large-diameter or open exhaust setup compared with a stock setup.
Here you'll see the effects of running open header versus a well-designed full exhaust: Not that there is no point where the open header is making less low-end power (though some further tuning at the VTEC engagement would have been needed): https://honda-tech.com/zerothread?id=1381051</TD></TR></TABLE>
I ran it on my b18a swapped in my crx. Normally I was able to beat my other friend's hatchback with a b18b swapped around low end, but when I removed it, I kept on getting smoked. We then switched. He had no muffler and I slapped mine back on, I noticed the low end was more than before and I was able to pull on him.
That was my experience, take it for what its' worth.
I have yet to see a dyno chart showing a power loss anywhere on the curve when using a large-diameter or open exhaust setup compared with a stock setup.
Here you'll see the effects of running open header versus a well-designed full exhaust: Not that there is no point where the open header is making less low-end power (though some further tuning at the VTEC engagement would have been needed): https://honda-tech.com/zerothread?id=1381051</TD></TR></TABLE>
I ran it on my b18a swapped in my crx. Normally I was able to beat my other friend's hatchback with a b18b swapped around low end, but when I removed it, I kept on getting smoked. We then switched. He had no muffler and I slapped mine back on, I noticed the low end was more than before and I was able to pull on him.
That was my experience, take it for what its' worth.
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From: Mustafar
Re: removing muffler? (Rickdrizzle)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rickdrizzle »</TD></TR><TR><TD CLASS="quote">That was my experience, take it for what its' worth.</TD></TR></TABLE>
A dyno chart would be far more definitive evidence.
A dyno chart would be far more definitive evidence.
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From: Mustafar
Re: (Rickdrizzle)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rickdrizzle »</TD></TR><TR><TD CLASS="quote">It was MY experience, I couldn't care less if you believe me or not.</TD></TR></TABLE>
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From: Hardparkin in, IA, United States
Re: removing muffler? (Padawan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan »</TD></TR><TR><TD CLASS="quote">
I have yet to see a dyno chart showing a power loss anywhere on the curve when using a large-diameter or open exhaust setup compared with a stock setup.
Here you'll see the effects of running open header versus a well-designed full exhaust: Not that there is no point where the open header is making less low-end power (though some further tuning at the VTEC engagement would have been needed): https://honda-tech.com/zerothread?id=1381051</TD></TR></TABLE>
we aren't talking peak numbers we are talking the numbers compared to each other along the entire powerband. there is no way around that in the low to mid range tq is decreased when backflow is not present
I have yet to see a dyno chart showing a power loss anywhere on the curve when using a large-diameter or open exhaust setup compared with a stock setup.
Here you'll see the effects of running open header versus a well-designed full exhaust: Not that there is no point where the open header is making less low-end power (though some further tuning at the VTEC engagement would have been needed): https://honda-tech.com/zerothread?id=1381051</TD></TR></TABLE>
we aren't talking peak numbers we are talking the numbers compared to each other along the entire powerband. there is no way around that in the low to mid range tq is decreased when backflow is not present
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From: Mustafar
Re: removing muffler? (nate_2k5)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 »</TD></TR><TR><TD CLASS="quote">we aren't talking peak numbers we are talking the numbers compared to each other along the entire powerband.</TD></TR></TABLE>
I'm not talking about peak numbers either. If you check the link I provided, you'll find at least one chart showing no loss in power anywhere along the curve by unbolting the exhaust (with the exception of the VTEC crossover, which was purely a tuning issue). I'll try to dig up some other N/A charts if I can, but there are many turbo dynos showing large gains everywhere on the curve when running an open exhaust.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20ls01 »</TD></TR><TR><TD CLASS="quote">dont need one. its pretty noticeable. my friend felt it and i also felt it after we took off his oem muffler. </TD></TR></TABLE>
You need one if you're trying to substantiate your claim. The "butt dyno" is a notoriously inaccurate measuring device.
I'm not talking about peak numbers either. If you check the link I provided, you'll find at least one chart showing no loss in power anywhere along the curve by unbolting the exhaust (with the exception of the VTEC crossover, which was purely a tuning issue). I'll try to dig up some other N/A charts if I can, but there are many turbo dynos showing large gains everywhere on the curve when running an open exhaust.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20ls01 »</TD></TR><TR><TD CLASS="quote">dont need one. its pretty noticeable. my friend felt it and i also felt it after we took off his oem muffler. </TD></TR></TABLE>
You need one if you're trying to substantiate your claim. The "butt dyno" is a notoriously inaccurate measuring device.
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From: los angeles, ca, u.s.
Re: removing muffler? (Fern413)
getting caught without a muffler by cop will be the wrost thing for you especially here in cali.. they will RED FLAG the car.. then you will have to go to the state ref just to smog your car... so in other words its not advisable to do it...just upgrade exhaust if anything
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From: CenCal, united states
Re: removing muffler? (Padawan)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan »</TD></TR><TR><TD CLASS="quote">
I'm not talking about peak numbers either. If you check the link I provided, you'll find at least one chart showing no loss in power anywhere along the curve by unbolting the exhaust (with the exception of the VTEC crossover, which was purely a tuning issue). I'll try to dig up some other N/A charts if I can, but there are many turbo dynos showing large gains everywhere on the curve when running an open exhaust. </TD></TR></TABLE>
Turbo cars don't need back pressure, so removing the restrictive muffler would benefit it a lot. We're talking about N/A here, most likely a stock one.
I'm not talking about peak numbers either. If you check the link I provided, you'll find at least one chart showing no loss in power anywhere along the curve by unbolting the exhaust (with the exception of the VTEC crossover, which was purely a tuning issue). I'll try to dig up some other N/A charts if I can, but there are many turbo dynos showing large gains everywhere on the curve when running an open exhaust. </TD></TR></TABLE>
Turbo cars don't need back pressure, so removing the restrictive muffler would benefit it a lot. We're talking about N/A here, most likely a stock one.
Re: removing muffler? (thatnikkashoD)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thatnikkashoD »</TD></TR><TR><TD CLASS="quote">hey, I was wondering if I was to remove the muffler off my DA, would I loose power? How much power would be loss?</TD></TR></TABLE>
To answer your question, there probably wouldn't be any NOTICABLE power gains or loses. Yes it would be louder, but it might not be too bad. My muffler fell off my old Nissan years ago and I personally thought it was hilarious and left it like that - oh and don't worry about cops, just throw it in neutral when you see one. Worst thing that could happen is you get a repair ticket and you put the muffler back on.
To answer your question, there probably wouldn't be any NOTICABLE power gains or loses. Yes it would be louder, but it might not be too bad. My muffler fell off my old Nissan years ago and I personally thought it was hilarious and left it like that - oh and don't worry about cops, just throw it in neutral when you see one. Worst thing that could happen is you get a repair ticket and you put the muffler back on.