Ok for my turbo project, Im running a .57trim no name turbo. I have 3 inch exhaust from the turbo back and a little resonator at the end. now my main concern in my obx wastegate that dumps under the hood.



Having such an open exhaust would i have to worry about back pressure when routing the dump back in down stream? personally i dont like loud exhaust notes under the hood, i prefer to be able to here my turbo working.



i know the main advantage of an open dump is less back pressure in the exhaust pipe for the turbo.

 

Just plumb it at least 18" from the turbo at a shallow angle.

 

Screamer pipes are awesome dude, Yer as said route your gate pipe alongside the dump pipe and blend the two gradually together



Maybe put a couple of flanges in the so you can remove part of the pipe so you can have screamer on track days and turbo spool for stealth



Cheers Ryan

 

I have a open dump off a 38mm Tial, It is loud, but you can most certainly here my car spool over the exhaust, and my dump tube is only about a foot long.. I dont mind the sound case i am running enough boost to so it only opens if i really dig deep....

 

HEHEHEHEHEHEHE!!!!!!!!!!!!

 

sadly i've had people ask me if i have vtec on my car when mine opens (it's running open wastegate also).....

 

i had an open dump on my car, just because i was to cheap and lazy to get it plumbed back into the downpipe. I was only running ~8-10psi so it got very annoying hearing it open all the time.



If I was running at the track and trying to get the best times I could, I would run open WG, if i built a street car, I would plumb it into the exhaust next time.



if you decide to plumb it in (my recommendation) run it along the exhaust for ~ 2 feet and smoothly transition it (eg: 45 bend not 90) this will prevent the dump from effecting the flow as much from the turbo.

 

I run an open 46mm gate. I personally don't mind the noise from the gate opening, it echos out the screaming of my girlfriend.

If you don't like the sound, recirculate it back into the exhaust.

 

i wanna do this but cops watch me like a hawk in my area, id get pulled over before i even hit the road!!!!!

 

No to Hi Jack your thread, but with my car i also got pulled over all the time, now with Harness's and lowered to the floor and a complete straight pipe exhaust, no cop has stoped me any where in almost a year, and I wanna say it is due to my custom plates. I have heard others saying this, but i really think it is true. Yet, in town i am still carefull and try my best to stay quiet and not race light to light lol!