Well i now have a chance to route my wastegate back to my downpipe... should i do it?? Whats the Pro's and Con's of doing this and will it hurt performance? I was thinking of doing it because I didnt want to smell like exhaust fumes anymore, but if im going to lose power, then **** it. What's the correct and incorrect way of routing it? Any replies would be greatly appreciated... Oh and I did a search, nothing came up. Thanx Again!

 

Close that baby up. Sounds and smells much better. Route the WG as far back as possible on the DP so you won't lose power. Make the transition into the exhaust as smooth as possible - i.e. don't dump it in there with a 90 degree bend. I used a 45 degree .... hard to explain but use your imagination.

 

yes, you will lose some power..I don't know how much but it will happen

 

open loop =moth....f... loud youl will get busted by cop

 

i think open sounds good

 

Just drive like a granny when a cop is nearby. You can only heard it when you stomp on the gas.

 

If you close it properly it wont affect your performance noticably. 18'' from the turbo seems the be the general rule. Might as well do it now instead of later when you get tired of the smell and the sound.

 

ive seen losses of over 40 hp by going to a closed loop.... not worth it to me...

 

Open fool!! Like the 'real' H-town racers do!!j/k

 

where are you people hearing these rediculous amounts of losses? 40hp? come on now, that just seems rediculous. i want proof as well as everyone else.

 

Art and Dustin have already proved that you can run a closed loop setup and not lose any power. Just make sure the w/g pipe re-enters the exhausst ATLEAST 18" away from the exhaust housing. I have been running open since last November but I will be running a closed BOV and w/g soon to add a little more stealthiness to my beater.

 

i think it depends on the diameter of your exhaust piping. the larger the piping, the less impact it has

 

you got a point

 

Does the wastegate (46mm Tial) sound over ride the BOV (blitz DD) with open loop??

 

yeah it will be louder, but you wont hear the 2 at the same time though...


Rob

 

Art's is open and was killing my ears (like mine used to) when he was on the dyno last week. Here's my proof of how going closed affects your power:

Open loop : 176 HP
Closed loop : 206 HP

Granted, when I did 206 that was the second run after Vaportrail fiddled with the AFC a bit, but that is almost exactly the HP I was expecting from my setup.

 

i have an open loop...yeah it is loud...kinda scary too hehe but i mean its only like that if u mash on the gas...regular driving all u hear is the BOV...even when u are on gas hard u can still hear the bov...u can actual here both...almost like my car is making some sort of song hehe...

 

You can hear your BOV when you stomp on the gas?

 

well i mean when u let off at the same time the wastegate is opening but...yeah u get the picture hehe whoops..

 

So you saying that you made more power with the closed loop?!!

 

Well, yes and no. I made more power with closed loop, but not because of the closed loop. The AF was tuned AFTER going closed.

 

Gotcha.

 

 

Why 18"? Can't I offset that number by going with a bigger downpipe... say 9" w/ a 3" exhaust and even closer if I go 4" dp to a 3" exhaust?

 

Anybody have pics of the dumptube routing to the downpipe??