o2 Dump on DD evo
#16
EvoM Community Team Leader
iTrader: (60)
All the people I know that run a dump do so because they like the sound, not for performance reasons. We all run smaller turbos, so no real need, IMO.
#19
Newbie
Thread Starter
Thanks for all the feedback! I live in Portland so im not worried as much about the crazy emissions like CA, but just was wondering any cons of running an open dump on the daily lol
#21
With a dumped O2 housing you can run a more restrictive quieter exhaust and daily drivingwill be much nicer. Than under load since up to 50% of exhaust volume can be dumped out the wastegate yummy don't lose power from restriction in exhaust. A recirc O2 will need a free flowing exhaust because all of it goes through the exhaust. This will make the car louder all the time and make daily driving get annoying. I have a quiet exhaust and a hood dumped wastegate. I love it.
#22
Evolved Member
iTrader: (41)
With a dumped O2 housing you can run a more restrictive quieter exhaust and daily drivingwill be much nicer. Than under load since up to 50% of exhaust volume can be dumped out the wastegate yummy don't lose power from restriction in exhaust. A recirc O2 will need a free flowing exhaust because all of it goes through the exhaust. This will make the car louder all the time and make daily driving get annoying. I have a quiet exhaust and a hood dumped wastegate. I love it.
#23
EvoM Community Team Leader
iTrader: (60)
With a dumped O2 housing you can run a more restrictive quieter exhaust and daily drivingwill be much nicer. Than under load since up to 50% of exhaust volume can be dumped out the wastegate yummy don't lose power from restriction in exhaust. A recirc O2 will need a free flowing exhaust because all of it goes through the exhaust. This will make the car louder all the time and make daily driving get annoying. I have a quiet exhaust and a hood dumped wastegate. I love it.
50%?? holy crap, how big is your wastegate??? :P
turbo cars like open exhausts. i don't think an open dump would make that much of a difference unless you are running a very large turbo. even still, i've never seen one vent near 50% of exhaust gases.
a more restrictive exhaust is still going to be more restrictive. i'm basing my opinion on my experience with turbo cars (varying turbo setups on different cars).
#25
EvoM Community Team Leader
iTrader: (60)
all this is one reason i stick to stock-framed turbos. once you start going with a crazy setup, it never ends LOL. i've been down that long, long road once before.
#28
My Evo has an open O2 dump out of my hood, what kind of problems did you get with the cops? It is my first Evo so I am new to this game. Did you enjoy the O2 dump?
-Jose