# Wastegate Porting **URL:** \ **Category:** PittSpeed Off Topic\ **Created:** [October 12, 2005, 6:00am UTC](https://forums.speedlife.net/t/wastegate-porting/177628 "2005-10-12T06:00:50Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![mr2-92](https://avatars.discourse-cdn.com/v4/letter/m/13edae/32.png) [@mr2-92](https://forums.speedlife.net/u/mr2-92)\ **Post date:** [October 12, 2005, 6:00am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/1 "2005-10-12T06:00:50Z")
Can anyone recommend a shop that could port a wastegate from a WRX STI? ---
**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\ **Post date:** [October 12, 2005, 6:14am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/2 "2005-10-12T06:14:54Z")
i dont know anyone around here, but i just had mine ported in NC and the flow went from 70cfm at 20 inches of water to 168cfm maybe domination or someone on here does that… ---
**Author:** ![jeremysyty](https://avatars.discourse-cdn.com/v4/letter/j/87869e/32.png) [@jeremysyty](https://forums.speedlife.net/u/jeremysyty)\ **Post date:** [October 12, 2005, 6:19am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/3 "2005-10-12T06:19:32Z")
Pittsburgh Diesel Injection in Hamarville. If they can’t then they might know someone that can. ---
**Author:** ![JackdUp](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jackdup/32/6015_2.png) [@JackdUp](https://forums.speedlife.net/u/JackdUp)\ **Post date:** [October 12, 2005, 6:39am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/4 "2005-10-12T06:39:08Z")
Domination Chassis? ---
**Author:** ![T34418L31](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@T34418L31](https://forums.speedlife.net/u/T34418L31)\ **Post date:** [October 12, 2005, 8:22am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/5 "2005-10-12T08:22:24Z")
I can do it? Anyone with a die grinder and some time can port something. ---
**Author:** ![grindpunk16](https://avatars.discourse-cdn.com/v4/letter/g/9f8e36/32.png) [@grindpunk16](https://forums.speedlife.net/u/grindpunk16)\ **Post date:** [October 12, 2005, 11:01am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/6 "2005-10-12T11:01:19Z")
internal or external? ---
**Author:** ![jeremysyty](https://avatars.discourse-cdn.com/v4/letter/j/87869e/32.png) [@jeremysyty](https://forums.speedlife.net/u/jeremysyty)\ **Post date:** [October 12, 2005, 1:36pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/7 "2005-10-12T13:36:58Z")
If you port the wastegate on an internal, more than likely you will have to increase the size of the puck also. There is a access port for internals you can grind off the welds. Then grind the other wastegate hole and change puck assembly. ---
**Author:** ![grindpunk16](https://avatars.discourse-cdn.com/v4/letter/g/9f8e36/32.png) [@grindpunk16](https://forums.speedlife.net/u/grindpunk16)\ **Post date:** [October 12, 2005, 2:35pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/8 "2005-10-12T14:35:58Z")
[http://www.fwdmopar.com/sites/dennis/wgateport.html](http://www.fwdmopar.com/sites/dennis/wgateport.html) ---
**Author:** ![T70\_Tsi](https://avatars.discourse-cdn.com/v4/letter/t/898d66/32.png) [@T70\_Tsi](https://forums.speedlife.net/u/T70_Tsi)\ **Post date:** [October 12, 2005, 2:47pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/9 "2005-10-12T14:47:55Z")
> [@jeremysyty](#): > > If you port the wastegate on an internal, more than likely you will have to increase the size of the puck also. There is a access port for internals you can grind off the welds. Then grind the other wastegate hole and change puck assembly. :wtf:? ---
**Author:** ![jeremysyty](https://avatars.discourse-cdn.com/v4/letter/j/87869e/32.png) [@jeremysyty](https://forums.speedlife.net/u/jeremysyty)\ **Post date:** [October 12, 2005, 5:27pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/10 "2005-10-12T17:27:19Z")
If you increase the size of the wastegate hole, you will need to increase the size of the clapper/puck/wastegate so it will cover the hole. Does that make better sense? BTW, if you are having boost creep now, cheaper easier “possible fix” would be to increase the stiffness of the waste gate actuator spring. Adding additional spring or new actuator. ---
**Author:** ![T70\_Tsi](https://avatars.discourse-cdn.com/v4/letter/t/898d66/32.png) [@T70\_Tsi](https://forums.speedlife.net/u/T70_Tsi)\ **Post date:** [October 12, 2005, 11:59pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/11 "2005-10-12T23:59:05Z")
> [@jeremysyty](#): > > If you increase the size of the wastegate hole, you will need to increase the size of the clapper/puck/wastegate so it will cover the hole. Does that make better sense? > > BTW, if you are having boost creep now, cheaper easier “possible fix” would be to increase the stiffness of the waste gate actuator spring. Adding additional spring or new actuator. no one in their right mind opens up the wastegate hole itself with a die grinder… ---
**Author:** ![jeremysyty](https://avatars.discourse-cdn.com/v4/letter/j/87869e/32.png) [@jeremysyty](https://forums.speedlife.net/u/jeremysyty)\ **Post date:** [October 13, 2005, 8:35am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/12 "2005-10-13T08:35:38Z")
> [@BlueMeanieTSi](#): > > no one in their right mind opens up the wastegate hole itself with a die grinder… Totally agreed on not using a die grinder! I was just stating that if you enlarge it enough that the wastegate puck will need enlarged also. Probably cheaper wiring the wastegate shut, and installing an external on the manifold piping (if possible). ---
**Author:** ![Petty](https://avatars.discourse-cdn.com/v4/letter/p/71e660/32.png) [@Petty](https://forums.speedlife.net/u/Petty)\ **Post date:** [October 13, 2005, 9:49am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/13 "2005-10-13T09:49:27Z")
> [@mr2-92](#): > > Can anyone recommend a shop that could port a wastegate from a WRX STI? I wouldn’t recommend doing it > **[NASIOC](https://forums.nasioc.com/forums/showthread.php?t=730553)** > > Welcome to the North American Subaru Impreza Owners Club the largest Subaru car club website for performance information on all makes of Subaru including the Impreza, WRX, STI, Legacy, Forester, Tribeca, Baja, and SVX. We also have forums dedicated... ---
**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\ **Post date:** [October 13, 2005, 10:51am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/14 "2005-10-13T10:51:50Z")
> [@BlueMeanieTSi](#): > > no one in their right mind opens up the wastegate hole itself with a die grinder… richard clark ported my turbonetics on the buick by hand and mic’ it damn near perfect .950 ---
**Author:** ![bobert517](https://avatars.discourse-cdn.com/v4/letter/b/d2c977/32.png) [@bobert517](https://forums.speedlife.net/u/bobert517)\ **Post date:** [October 13, 2005, 12:16pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/15 "2005-10-13T12:16:26Z")
[http://www.pghsubarus.com/tech/porting/porting.aspx](http://www.pghsubarus.com/tech/porting/porting.aspx) ---
**Author:** ![jeremysyty](https://avatars.discourse-cdn.com/v4/letter/j/87869e/32.png) [@jeremysyty](https://forums.speedlife.net/u/jeremysyty)\ **Post date:** [October 13, 2005, 2:07pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/16 "2005-10-13T14:07:31Z")
Now that is an awesome write up! 🍺 ---
**Author:** ![Dominator](https://avatars.discourse-cdn.com/v4/letter/d/a4c791/32.png) [@Dominator](https://forums.speedlife.net/u/Dominator)\ **Post date:** [October 13, 2005, 5:42pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/17 "2005-10-13T17:42:30Z")
If you decide to. I can definataly handle it for you. ---
**Author:** ![bobert517](https://avatars.discourse-cdn.com/v4/letter/b/d2c977/32.png) [@bobert517](https://forums.speedlife.net/u/bobert517)\ **Post date:** [October 13, 2005, 7:47pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/18 "2005-10-13T19:47:10Z")
> [@jeremysyty](#): > > Now that is an awesome write up! 🍺 you think that one is good, look at this one. [http://www.pghsubarus.com/tech/rst/rst.aspx](http://www.pghsubarus.com/tech/rst/rst.aspx) its on how to turbo a 2.5rs. or some of the other atricles he has written [http://www.pghsubarus.com/tech/technical.aspx](http://www.pghsubarus.com/tech/technical.aspx) ---
**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\ **Post date:** [October 13, 2005, 7:51pm UTC](https://forums.speedlife.net/t/wastegate-porting/177628/19 "2005-10-13T19:51:44Z")
> [@Domination](#): > > If you decide to. I can definataly handle it for you. see told ya he could do eet!! ---
**Author:** ![mr2-92](https://avatars.discourse-cdn.com/v4/letter/m/13edae/32.png) [@mr2-92](https://forums.speedlife.net/u/mr2-92)\ **Post date:** [October 14, 2005, 5:20am UTC](https://forums.speedlife.net/t/wastegate-porting/177628/20 "2005-10-14T05:20:07Z")
Thanks for all the good replies. :mrT: