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Dump Tube Project

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Old May 2, 2006 | 12:38 AM
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Default Dump Tube Project

Has anyone tried to put a muffler on the end of their dump tube? Im looking for something to make the dump tube less noisey, Yes I know it can be rerouted but you will loose some power doing that. I was going to try to extend the tube by a few feet or so to see if that helps any. Anyone have any other ideas I would love to hear them!
Old May 2, 2006 | 01:34 AM
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Dude, in all honesty. Ditch the o2 dump. Its loud and annoying and it gets old really fast. Invest in a QTEC of some sort and be able to go Open Downpipe on the fly. Its the best thing since sliced bread IMO.

http://www.quicktimeperformance.com/QTEC/
Old May 2, 2006 | 03:45 AM
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Hmmmm. That sounds like a good idea. I know with me Turbo set up that i have to jack up my car when i go to the track and take the time to take off the s-pipe each time. I would definately look into getting this.
Old May 2, 2006 | 04:46 PM
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If you ar talking about the dump from the external WG, then route it into your exhaust.
Old May 2, 2006 | 04:57 PM
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He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Old May 2, 2006 | 05:00 PM
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Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
Old May 2, 2006 | 05:06 PM
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Originally Posted by tcengel
Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
I dont understand it either. Hense my ... lol
Old May 2, 2006 | 05:19 PM
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Originally Posted by zer0
Originally Posted by tcengel
Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
I dont understand it either. Hense my ... lol
Well I think b-cuz of air traveling out @ high speeds thruogh the dump tube would obviously provide more power cuz theres no restriction, but if it went throught the pipe then it would have to hit the CAT and the Exhaust b-4 getting released into the air
Old May 2, 2006 | 05:20 PM
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Default Re: Dump Tube Project

Originally Posted by Kaeon
Has anyone tried to put a muffler on the end of their dump tube? Im looking for something to make the dump tube less noisey, Yes I know it can be rerouted but you will loose some power doing that. I was going to try to extend the tube by a few feet or so to see if that helps any. Anyone have any other ideas I would love to hear them!
I was wondering if a silencer @ the end of the tube would do the trick.
Old May 2, 2006 | 05:21 PM
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I put a remote dump on my car a few weeks ago, and put my stock exhaust back. Ultra sleeper mod until I open it
Old May 2, 2006 | 05:28 PM
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Originally Posted by SO-CAL_TC
Originally Posted by zer0
Originally Posted by tcengel
Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
I dont understand it either. Hense my ... lol
Well I think b-cuz of air traveling out @ high speeds thruogh the dump tube would obviously provide more power cuz theres no restriction, but if it went throught the pipe then it would have to hit the CAT and the Exhaust b-4 getting released into the air
So route it back into the downpipe and have a remote open downpipe...its the best bet, I doubt anything will quiet an open dump tube, be sides rerouting it.

Open Downpipe on the fly, For the Win!
Old May 2, 2006 | 05:37 PM
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Originally Posted by zer0
Originally Posted by SO-CAL_TC
Originally Posted by zer0
Originally Posted by tcengel
Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
I dont understand it either. Hense my ... lol
Well I think b-cuz of air traveling out @ high speeds thruogh the dump tube would obviously provide more power cuz theres no restriction, but if it went throught the pipe then it would have to hit the CAT and the Exhaust b-4 getting released into the air
So route it back into the downpipe and have a remote open downpipe...its the best bet, I doubt anything will quiet an open dump tube, be sides rerouting it.

Open Downpipe on the fly, For the Win!
TRUE TRUE
Old May 2, 2006 | 06:09 PM
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Originally Posted by SO-CAL_TC
Originally Posted by zer0
Originally Posted by tcengel
Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
I dont understand it either. Hense my ... lol
Well I think b-cuz of air traveling out @ high speeds thruogh the dump tube would obviously provide more power cuz theres no restriction, but if it went throught the pipe then it would have to hit the CAT and the Exhaust b-4 getting released into the air
That would only matter if your wastegate didn't provide enough flow out of it. At the 5-10PSI that you will be using it for, this is not an issue at all.
Old May 2, 2006 | 06:11 PM
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I'm running an open dump tube, i love it
Old May 2, 2006 | 06:13 PM
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Originally Posted by tcengel
Originally Posted by SO-CAL_TC
Originally Posted by zer0
Originally Posted by tcengel
Originally Posted by zer0
He doesnt want to do that because it might loose some power..

Id route it back into my downpipe and run a QTEC or equiv.
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
I dont understand it either. Hense my ... lol
Well I think b-cuz of air traveling out @ high speeds thruogh the dump tube would obviously provide more power cuz theres no restriction, but if it went throught the pipe then it would have to hit the CAT and the Exhaust b-4 getting released into the air
That would only matter if your wastegate didn't provide enough flow out of it. At the 5-10PSI that you will be using it for, this is not an issue at all.
Kool well I think thats good enough for me I'll go ahead and route my dump tube to my exhaust cuz the dump tube sounds nasty after about three thousand rpms.

What exhaust setup would you guys recommend for me? Im only pushing 4psi but putting out about 265hp to the wheels.
Old May 2, 2006 | 06:26 PM
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Stock exhaust, with an electronic cutout or a 2.5in S-Pipe back.
Old May 2, 2006 | 07:18 PM
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Originally Posted by tcengel
Please explain why it would loose power? Sounds like something a shop told him since they are too lazy to do the work. Go to a good exhaust shop and have them fab one up.
Having the wastegate dump into the downpipe will loose some amount of power because it is now more restricted. Not to sound cocky but I am the exhaust shop!! I try to do as much as I can without taking my car places. That way I know what has been done. I cut some pipes and just dumped the wastegate back into the downpipe for now welded it up and called it a day... I was just trying to get some users input on how they have theirs setup, for people to reference too..
Old May 2, 2006 | 11:51 PM
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Originally Posted by Kaeon
Having the wastegate dump into the downpipe will loose some amount of power because it is now more restricted.
I understand why you and others are saying it would be more restricted, but wonder if you're considering the complete equation. Wouldn't (or at least couldn't) exhaust pulse scavenging possibly improve the performance, due to effectively relieving the restriction, even when compared to an open pipe?
Old May 3, 2006 | 02:23 AM
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Originally Posted by nodsetse
Originally Posted by Kaeon
Having the wastegate dump into the downpipe will loose some amount of power because it is now more restricted.
I understand why you and others are saying it would be more restricted, but wonder if you're considering the complete equation. Wouldn't (or at least couldn't) exhaust pulse scavenging possibly improve the performance, due to effectively relieving the restriction, even when compared to an open pipe?
Hmm you bring up a valid point. But it seems alot of tests have found that open tube is still the best way to go. Im going to check into this more...
Old May 3, 2006 | 05:47 AM
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dump tubes are tight man... they're the vibes down or' here..most of the turbz here are dump... but it sound cooler and less beastly w/o....

up to you thou...



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