How Does O2 Dump Work??

[rjdavis21]

How does the O2 dump work on our cars? It looks like it lets raw exhaust out after the wastegate...but wouldnt that be extremely illegal and make the car smell like a lawnmower? How does this work and what are the benifits of it. Thanks.

 

[philipkrotch]

it just dumps the hot gases from the turbo straight out so it doesnt mix with the exhaust gases resulting in better flow. the point of having one is to help preven boost creep. yes, it is very emissions illegal and no, it wont smell like a lawnmower, u probably wont even smell it because it usually dumps under your car. its also loud as hell when ur at full boost, ilove it., i have one and its the greatest invention next to the wheel!

 

[laserspeeddemon]

Annoyingly loud, very illegal, attracts attention from the cops, $150 minium.

In my opinion, an atmospheric dump 02 housing should be for a track car not a street car. I have a heavly ported 2g 02 housing on my 1g talon, and it can hold boost all day long.

 

[philipkrotch]

i just liked having it on a stock exhaust, quiet as hell, then u rip on it and ppl about shit them selves.

 

[xcelr8n]

alright, so I know this isnt where this thread belings, but Im thinking of adding one, I want to add it on to a stock exhuast.
is it streetable, when youre not giving it? I dont want cops loving me off.

what nosie does it make under say 3000rpm?

 

[rjdavis21]

so this loud sound is not worth the power gain? does it sound just as u dont even have a muffler?

 

[MyEclipse5]

you want a power gain, do what my buddy did, and what im going to do.

Where your cat should be put a "Y" type pipe. Put a "flange" in one of the holes, and the other hole goes back to the muffler and all. Whenever your racing, or want to hear that sound, take the flage off and youll be running open DP...then if your going to be in a well populated area with cops, stick the flage back in and boom. He even made a custom switch in the car to pull it off and put it on.

 

[rjdavis21]

well i really "didnt" want the sound actually

 

[97GS-TSpyder]

man open DP sucks ass....i actually lost power adn times when i took y exhaust off...then when i had the catback on...dont do it for gods sake

 

[philipkrotch]

alright, so I know this isnt where this thread belings, but Im thinking of adding one, I want to add it on to a stock exhuast.
is it streetable, when youre not giving it? I dont want cops loving me off.

what nosie does it make under say 3000rpm?

it makes no sound at around 3000 rpm, only under WOT and boost

 

[Coup D E'Tat]

man open DP sucks ass....i actually lost power adn times when i took y exhaust off...then when i had the catback on...dont do it for gods sake

I dissagree. I love my open downpipe, and gained a good bit of power running stock downpipe open as opposed to the full stock exhaust.

And, as for the sound, what decently fast car is quiet at WOT anyways?

 

[97GS-TSpyder]

i didnt do it with stock
i did it with a 3" apexci n1 downpipe...adn it hindered more than gained

 

[laserspeeddemon]

I dissagree. I love my open downpipe, and gained a good bit of power running stock downpipe open as opposed to the full stock exhaust.

And, as for the sound, what decently fast car is quiet at WOT anyways?

Dude there is a limit, anyway. I ran the car at the track with the D/P disconnected from the 02 housing, ALOT OF POWER was opened it up, but the car sound like ass at WOT and idle, I would only do this at the track and at the track only. Its alot easier then swapping 02 housings. And you reap the same benefits. Then put the DP back on and you got a street legal car again! That easy!

 

[rjdavis21]

well usually when I go to the track i like to know what i can run in street weight. i dont wanna unhook this take out that. but the only time i did go to the track i ended up spinning 2 bearings...i know i shifted right and didnt do anything too dump....im scared to go back on the new engine in light that the same thing will happen and i dont have the money to fix it. is that something to worry about or did it just happen because of the high milage?

 

[laserspeeddemon]

you don't need to take it out, just unbolt the 2, 19mm nuts and pull down on the DP. Waalaa high horse power and sounds mean! then bolt it back up when you go home.

 

[Coup D E'Tat]

Dude there is a limit, anyway.

Real men don't care how loud their car is.

I'd hate to see what some of you would do if you owned an old muscle car or street rod.
The noise, WAHHH WAHHH

 

[98RedGs]

http://www.dsmtuners.com/forums/showthread.php?t=110397
Check the vfaq.

 

[laserspeeddemon]

Real men don't care how loud their car is.

I'd hate to see what some of you would do if you owned an old muscle car or street rod.
The noise, WAHHH WAHHH

Lets not turn this into a debate about my man hood. I used help my friends work on thier cars, a 66 Camaro SS and a 71 Chevelle. They were loud as anything. But loud with a purpose, through a complete and legal exhaust system. The car was loud because it was powerful, not because he cut a whole in the exhaust. An internal dump will work just as well as an external dump. And is more civil.

People that think things that are loud are a annoying. Like the idiot that lived in my old nieghborhood, always revving his d*mn Harley, every d*mn night. He wasn't even working on it. He and a couple of his friends would just stand around the bike and he'd rev it.

 

[Coup D E'Tat]

Whoa there big guy. That post was in fun, hence the winking-eye smiley at the bottom.

Don't take it so seriously.

 

[laserspeeddemon]

Whoa there big guy. That post was in fun, hence the winking-eye smiley at the bottom.

Don't take it so seriously.

Don't question my man hood! (insecurities I guess)

Still if you lived in my own neighborhood, you'd understand were I was coming from.

 

[rjdavis21]

ok i heard an o2 dump at the DSMCA meet so i know what they sound like so thanks for all yalls help.

 

[98RedGs]

ok i heard an o2 dump at the DSMCA meet so i know what they sound like so thanks for all yalls help.

 

[blcknspo0ln]

i'm leavin' on a JET PLANE.. dont know when i'll be back again.. hum hum hum

 

[midnght]

Just buy yourself one of these QTEC's and you will be set....