What does an open dumptube sound like?
11-09-2004, 03:44 PM
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What does an open dumptube sound like?
What does the an open dump tube sound like with a 35mm wastegate installed?
I've searched before, but only found 1 thread - which really wasn't much help.
Does the wastegate make a "rat-tat-tat" sound when the specified boost pressure is reached? Or is it supposed to be quiet?
I've searched before, but only found 1 thread - which really wasn't much help.
Does the wastegate make a "rat-tat-tat" sound when the specified boost pressure is reached? Or is it supposed to be quiet?
11-09-2004, 03:56 PM
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Re: What does an open dumptube sound like? (ben@importparts.com)
I'm sorry - maybe I should rephrase my question.
What is the wastegate supposed to sound like when it actuates?
I know what the sound of the actual open dump tube is - but I am just curious to know if the wastegate is supposed to make a lot of racket when it actuates....
What is the wastegate supposed to sound like when it actuates?
I know what the sound of the actual open dump tube is - but I am just curious to know if the wastegate is supposed to make a lot of racket when it actuates....
11-09-2004, 04:05 PM
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i have an open dump on my car, its a d16, drag mani, t3, and a deltagate. whenever the gate opens up, it just gets REALLY loud, like BAM! INSTANT NOISE!
its kinda cool, i like it, but some people hate it. IMO it sounds very mean when it opens up. it definitely sounds mildly frightening.
its kinda cool, i like it, but some people hate it. IMO it sounds very mean when it opens up. it definitely sounds mildly frightening.
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11-09-2004, 04:52 PM
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Re: What does an open dumptube sound like? (opto_isolator)
it is hard to describe. It is just really loud and obnoxious. My new dump tube is like 1.75 inches and really close to the ground. When it dumps it is so loud I can not hear anything. I can not even hear v-tec pop anymore.
11-09-2004, 05:07 PM
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Re: What does an open dumptube sound like? (underpressure02)
Loud is a relative term....
Mine is loud. BUT - I can hear my wastegate valve banging against the the valve guide (rat a tat tat)....I've read on here that 1 other user posted something like this before - but that thread died.
The wastegate seems to work great (holds pressure, doesn't creep, etc) - its just loud, and I wondered if this is normal or what....
Mine is loud. BUT - I can hear my wastegate valve banging against the the valve guide (rat a tat tat)....I've read on here that 1 other user posted something like this before - but that thread died.
The wastegate seems to work great (holds pressure, doesn't creep, etc) - its just loud, and I wondered if this is normal or what....
11-09-2004, 05:09 PM
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Re: What does an open dumptube sound like? (underpressure02)
It sounds cool in first and second, but in thrid and forth when the motor is at full load it sounds like CRAP, I hated it. So I recirculated it back into the DP and its MUCH better.
12-10-2004, 02:37 PM
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Re: What does an open dumptube sound like? (opto_isolator)
Heres a video of an eclipse with open dump..
GT32/?? turbo with tial wastegate(dumped to the ground)..Also HKS cams,,
Car coming at you..Idling,,accelerating away from you and in-car..(No music)
Right click save-as
about 5mb..Its a real good video..Download it before the link dies,,
GT32/?? turbo with tial wastegate(dumped to the ground)..Also HKS cams,,
Car coming at you..Idling,,accelerating away from you and in-car..(No music)
Right click save-as
about 5mb..Its a real good video..Download it before the link dies,,
12-10-2004, 02:42 PM
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Re: What does an open dumptube sound like? (opto_isolator)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by opto_isolator »</TD></TR><TR><TD CLASS="quote">Loud is a relative term....
Mine is loud. BUT - I can hear my wastegate valve banging against the the valve guide (rat a tat tat)....I've read on here that 1 other user posted something like this before - but that thread died.
The wastegate seems to work great (holds pressure, doesn't creep, etc) - its just loud, and I wondered if this is normal or what....</TD></TR></TABLE>
You shouldn't hear the valve tapping around when the wastegate opens. All you should hear is the sound of exhaust, nothing else
Mine is loud. BUT - I can hear my wastegate valve banging against the the valve guide (rat a tat tat)....I've read on here that 1 other user posted something like this before - but that thread died.
The wastegate seems to work great (holds pressure, doesn't creep, etc) - its just loud, and I wondered if this is normal or what....</TD></TR></TABLE>
You shouldn't hear the valve tapping around when the wastegate opens. All you should hear is the sound of exhaust, nothing else
12-10-2004, 02:42 PM
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Re: (brickonwheels)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brickonwheels »</TD></TR><TR><TD CLASS="quote">So what kind of benefits are there to having an open dumptube?</TD></TR></TABLE>
Same effect as running a larger downpipe. At least thats my theory on it. Under boost the exhaust will choose to flow the less restrictive route (AKA the dump tube).
Same effect as running a larger downpipe. At least thats my theory on it. Under boost the exhaust will choose to flow the less restrictive route (AKA the dump tube).
12-10-2004, 02:45 PM
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Re: What does an open dumptube sound like? (opto_isolator)
The open dumps I've heard all sounded different.
Most noteable are the 4G64 with a 16G sounds like barfing noises when the wastegate opens and a friend's SR20DET with a T3/T04e that sounds like a motorcycle with an exhaust.
The ACV-R's wastegate solenoid was a lot louder than the GReddy Profec Spec B's in my experience. It clicks so fast and loud it sounds like Edward Scissor Hands on a type writer.
Most noteable are the 4G64 with a 16G sounds like barfing noises when the wastegate opens and a friend's SR20DET with a T3/T04e that sounds like a motorcycle with an exhaust.
The ACV-R's wastegate solenoid was a lot louder than the GReddy Profec Spec B's in my experience. It clicks so fast and loud it sounds like Edward Scissor Hands on a type writer.
12-10-2004, 03:48 PM
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Re: What does an open dumptube sound like? (IN VTEC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IN VTEC »</TD></TR><TR><TD CLASS="quote"> It clicks so fast and loud it sounds like Edward Scissor Hands on a type writer.</TD></TR></TABLE>
Nice analogy...
LOL
Nice analogy...
LOL
12-10-2004, 05:10 PM
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Re: What does an open dumptube sound like? (631 Teggy)
ask, and you shall recieve
ls@8lbs.......open tial 38mm; no dump tube, strait off the WG (temp of coarse
)
http://www.we-todd-did-racing....DE%3D
ls@8lbs.......open tial 38mm; no dump tube, strait off the WG (temp of coarse
)http://www.we-todd-did-racing....DE%3D
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