open exhaust, pros/cons?
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Re: open exhaust, pros/cons? (Dominican_Kid)
I was wondering if anybody here is running open exhaust? Is there any noticable gains on the quarter mile? I wanted to try this at the track and see if it did anything for my times. If i do this, do i need to remove all the piping from cat back? thanks for any info.
BTW: can you run this on the streets?
BTW: can you run this on the streets?
#3
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Re: open exhaust, pros/cons? (Dominican_Kid)
only time i ran open exhaust on the streets was when 1. my exhaust wouldnt reach and 2. i had no downpipe to reach my exhaust. other than that theres no point to runing open exhaust on the street.
#5
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Re: open exhaust, pros/cons? (Dominican_Kid)
1.) yes it will give you better 1/4 times...how much is up to the driver.
2.) don't run open-exhaust on the street. it's bad for the environment and annoying as all hell. oh yeah, it's illegal too.
2.) don't run open-exhaust on the street. it's bad for the environment and annoying as all hell. oh yeah, it's illegal too.
#6
Re: open exhaust, pros/cons? (Archidictus)
open exhaust usually results in less torque and horsepower, ESPECIALLY in the low end. Only time open header(s) really helps is if you're running a turbo or turbos, or if you're running an all-out race engine or a ton of N/A horsepower on a street engine.
#7
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Re: open exhaust, pros/cons? (boosted92)
You don't lose torque, it just changes the the torque curve on your engine to a higher RPM, which is why its not smart on low HP Honda's because the low end is lacking in the first place. You would have hella top end though....
[Modified by GetawayinMoscow, 6:32 PM 10/20/2002]
[Modified by GetawayinMoscow, 6:32 PM 10/20/2002]
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#8
Unceasing Measure
Re: open exhaust, pros/cons? (boosted92)
open exhaust usually results in less torque and horsepower, ESPECIALLY in the low end. Only time open header(s) really helps is if you're running a turbo or turbos, or if you're running an all-out race engine or a ton of N/A horsepower on a street engine.
#9
Re: open exhaust, pros/cons? (Archidictus)
I have found that my car runs like complete crap with open-header. I have a DC Sports 4-1 header, and other than being loud as hell and rattling every bone in my body, the O2 sensor, which on that header is mounted 1" from the end of it sometimes sees outside air between pulses and it really dosen't run well at all. I expect that a header with the O2 sensor mounted closer to the engine would perform better.
Let it also be noted that this sounds like complete crap.
Alternatively, I got a test pipe from testpipe.com for about $25.00 i believe. I installed that in place of my catalytic convertor, with the DC Sports 4-1 stainless header, AC revolution muffler, and it is also extremely loud. All deep sound was removed. There was nothing but high pitched screaming at all rpm's. I couldn't quiet it down, I tried installing the silencer in my muffler and that didn't help enough. I took her out on the highway and after 6 miles I had a splitting headache and took that sucker off. However, I believe there was a noticable gain in power at all RPM's. I kept the pipe for track and dyno use.
Also, it smelled like crap! Like an old pickup truck. I love my catalytic convertor It silences just right and keeps my car smelling mountian fresh
Hope this helps,
Dougal
[Modified by zelifcam, 9:50 PM 10/20/2002]
[Modified by zelifcam, 9:53 PM 10/20/2002]
Let it also be noted that this sounds like complete crap.
Alternatively, I got a test pipe from testpipe.com for about $25.00 i believe. I installed that in place of my catalytic convertor, with the DC Sports 4-1 stainless header, AC revolution muffler, and it is also extremely loud. All deep sound was removed. There was nothing but high pitched screaming at all rpm's. I couldn't quiet it down, I tried installing the silencer in my muffler and that didn't help enough. I took her out on the highway and after 6 miles I had a splitting headache and took that sucker off. However, I believe there was a noticable gain in power at all RPM's. I kept the pipe for track and dyno use.
Also, it smelled like crap! Like an old pickup truck. I love my catalytic convertor It silences just right and keeps my car smelling mountian fresh
Hope this helps,
Dougal
[Modified by zelifcam, 9:50 PM 10/20/2002]
[Modified by zelifcam, 9:53 PM 10/20/2002]
#11
Re: open exhaust, pros/cons? (zelifcam)
I ran open header in my 00 si, and it felt alot faster, but you could never get away with that on the street, way to loud. but at the track you will see lower times, I also purchased that test pipe, from http://www.testpipes.com and it is also alittle quicker, but open header is much better for power gains.
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Re: open exhaust, pros/cons? (ZappasOne)
I ran around my neighborhood for a little while open header after removing my turbo.
GOD DANG was my car fawking slow. Depressingly slow actually.
I only recommend open header at the track. It is soooo loud(when VTEC engages really watch out), and a 4 banger with no engine sounds like ****.
I also recommend trying it.
GOD DANG was my car fawking slow. Depressingly slow actually.
I only recommend open header at the track. It is soooo loud(when VTEC engages really watch out), and a 4 banger with no engine sounds like ****.
I also recommend trying it.
#14
Unceasing Measure
Re: open exhaust, pros/cons? (Dominican_Kid)
still loud as ****, still illegal, the cat will rob you of power with no benefit, what else do you want us to tell you? just try it for God's sake. it takes five minutes to drop the Goddamned exhaust.
****** newbies
****** newbies
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