# Open dump versus recirculated dump quantified **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [May 11, 2006, 8:42am UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900 "2006-05-11T08:42:46Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![dezod](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dezod/32/7467_2.png) [@dezod](https://forums.speedlife.net/u/dezod)\ **Post date:** [May 11, 2006, 8:42am UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/1 "2006-05-11T08:42:46Z")
Well our tC with a recirc’d dump tube put down 244whp, 255wtq @ 8.5 PSI on a T3/T4. 271whp, 292wtq @ 11 PSI on the same set-up. **Dynos for each:** ![http://dezod.com/misc_images/TE_tune_10-15.jpg](http://dezod.com/misc_images/TE_tune_10-15.jpg) ![http://dezod.com/files/11psi%20dyno%20pull.jpg](http://dezod.com/files/11psi%20dyno%20pull.jpg) Now we decided to see how much power we would gain with open dump. Needless to say, **we picked up 7whp, 5wtq @ 8.5 PSI & 10whp, 1wtq @ 11 PSI** **New Graphs:** ![http://dezod.com/misc_images/dyno-at-8.5psi.gif](http://dezod.com/misc_images/dyno-at-8.5psi.gif) ![http://dezod.com/misc_images/dyno-at-11-psi.gif](http://dezod.com/misc_images/dyno-at-11-psi.gif) **Side by side of 8.5 PSIs:** ![http://dezod.com/misc_images/TE_tune_10-15.jpg](http://dezod.com/misc_images/TE_tune_10-15.jpg) ![http://dezod.com/misc_images/dyno-at-8.5psi.gif](http://dezod.com/misc_images/dyno-at-8.5psi.gif) **Sides of 11:** ![http://dezod.com/files/11psi%20dyno%20pull.jpg](http://dezod.com/files/11psi%20dyno%20pull.jpg) ![http://dezod.com/misc_images/dyno-at-11-psi.gif](http://dezod.com/misc_images/dyno-at-11-psi.gif) ---
**Author:** ![zwarbyt](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zwarbyt/32/7623_2.png) [@zwarbyt](https://forums.speedlife.net/u/zwarbyt)\ **Post date:** [May 11, 2006, 8:43am UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/2 "2006-05-11T08:43:29Z")
open 4L ---
**Author:** ![Daddie](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/daddie/32/7621_2.png) [@Daddie](https://forums.speedlife.net/u/Daddie)\ **Post date:** [May 11, 2006, 8:48am UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/3 "2006-05-11T08:48:47Z")
blah Pics of recirc downpipe? ---
**Author:** ![dezod](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dezod/32/7467_2.png) [@dezod](https://forums.speedlife.net/u/dezod)\ **Post date:** [May 11, 2006, 8:54am UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/4 "2006-05-11T08:54:03Z")
BTW here is a vid of the open dump at the track w/ a babied launch, and a 106 trap [http://media.putfile.com/dezod-S1-open-dump](http://media.putfile.com/dezod-S1-open-dump) ---
**Author:** ![Adictd2b00st](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/adictd2b00st/32/7625_2.png) [@Adictd2b00st](https://forums.speedlife.net/u/Adictd2b00st)\ **Post date:** [May 11, 2006, 8:56am UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/5 "2006-05-11T08:56:56Z")
open dump ftw ---
**Author:** ![psphinx81](https://avatars.discourse-cdn.com/v4/letter/p/e9a140/32.png) [@psphinx81](https://forums.speedlife.net/u/psphinx81)\ **Post date:** [May 11, 2006, 7:30pm UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/6 "2006-05-11T19:30:25Z")
:word: def… ---
**Author:** ![EvoMR](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/evomr/32/7186_2.png) [@EvoMR](https://forums.speedlife.net/u/EvoMR)\ **Post date:** [May 11, 2006, 8:10pm UTC](https://forums.speedlife.net/t/open-dump-versus-recirculated-dump-quantified/11900/7 "2006-05-11T20:10:51Z")
Open dump is great for the track but it sucks toconstantly have to worry about cops.