Project O2 Dump

[Jacek]

hey guys i have a spare 1g o2 housing and im thinking of building an o2 dump out of it (why the hell not). i was wondering if anyone has one and can give me the dimensions of the dump tube. thanks.

[john]

You can do it however big you want. I had a tubular o2 with dump. The dumptube was about 2" big I think. Make it as big as the wastegate side of the turbo. FYI they sound like shit.

[Jacek]

thats ok how they sound its more of a one day type thing to make some noise and i can build and get materials for free. i was just wondering because i didnt want to make it too long. i thought that if the pipe was too long i would creep like a bastard..

who knows, maybe for comedy ill add a windy noise maker deal just to be dumb

[A//// Guy]

I think they sound sweet... but Im sure as a DD I wont like it too much, but how often do you boost wot? ;)

[Jacek]

true, plus i always run 8-10 normally anyways..

[CVD]

My dump tube is 1.75". It ends right at the cross brace. There is a slight notch in the crossbrace on an AWD that looks like its made for a dump tube. I would have it end right there.

[john]

Internal wastegates open before full boost. They get annoying. Lets put it this way. You cannot make the 02 dump pipe too big. If you make it too small you risk creeping. 8-10 psi would be really annoying driving around with a dump.

[Jakey]

For another reference, here is a huge thread on Tuners all about O2 housings that is quite interesting: http://www.dsmtuners.com/forums/showthread...25&pagenumber=1 (http://www.dsmtuners.com/forums/showthread.php?s=&threadid=104116&perpage=25&pagenumber=1)

[Jacek]

thats why i set my car to just driving around, if i feel like it i can just dial in 10psi more.. when i drive i grandma it anywas and dont even have to hit boost. wastes gas..

[Jacek]

hey chris, whats the size of your exhaust elbow? still about the same size as the stock one?