How much difference gutting the wg pipe?
03-22-2007, 10:58 AM
#31
Rennlist Lifetime Member
Steffan,
It is ok to disagree. We have hundreds of systems running around that do not have this issue. When an issue arises it something in the system typically not releasing air. In order for you not to have creep you have to have a wastegate that is operating at 100% of its capacity. There is no way around it. You can't expect the wastegate to accommodate a free flowing system with a stock muffler either on it or the turbo. If the turbo has a stock muffler on it then the car will make less power due to back pressure, if the wastegate has backpressure on it then the system will overboost.
It doesn’t matter what year of car, we have discussed here on the board many times that the stock wastergate muffler can not be run on the car with the headers. It is my bad for assuming that you were running this from the start. I should have inquired farther. I have cars that easly crank 400+ to the wheels and never overboost to the point it is cutting the switch out. Yes, they may peak to 1.1 then will drop back after the boost hump. Never running the wastegate muffler though. Typically I like the Fabspeed dump pipe because it will route the wastegate all the way out the back of the car and the exiting sound is behind you. R we just fab our own pipe and tip to keep from having to cut into the heart exchanger.
It is ok to disagree. We have hundreds of systems running around that do not have this issue. When an issue arises it something in the system typically not releasing air. In order for you not to have creep you have to have a wastegate that is operating at 100% of its capacity. There is no way around it. You can't expect the wastegate to accommodate a free flowing system with a stock muffler either on it or the turbo. If the turbo has a stock muffler on it then the car will make less power due to back pressure, if the wastegate has backpressure on it then the system will overboost.
It doesn’t matter what year of car, we have discussed here on the board many times that the stock wastergate muffler can not be run on the car with the headers. It is my bad for assuming that you were running this from the start. I should have inquired farther. I have cars that easly crank 400+ to the wheels and never overboost to the point it is cutting the switch out. Yes, they may peak to 1.1 then will drop back after the boost hump. Never running the wastegate muffler though. Typically I like the Fabspeed dump pipe because it will route the wastegate all the way out the back of the car and the exiting sound is behind you. R we just fab our own pipe and tip to keep from having to cut into the heart exchanger.
03-22-2007, 01:37 PM
#34
Burning Brakes
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Originally Posted by PorschePhD
Not if we supply the one for the C2T. The pipe exits to the rear. The 930 dump is a short 90 to the ground.
If so I must have gotten the 930 one, right?
03-22-2007, 02:26 PM
#35
Burning Brakes
Staffan, the B&B dump pipe for the C2T is what I took pictures of posted on page 2 of this thread. I was also having the same problems as you, and mine did turn out to be an incorrectly functioning Waste Gate.
Bill
Bill
03-22-2007, 06:25 PM
#36
Burning Brakes
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Originally Posted by Colorado964turbo
Staffan, the B&B dump pipe for the C2T is what I took pictures of posted on page 2 of this thread. I was also having the same problems as you, and mine did turn out to be an incorrectly functioning Waste Gate.
Bill
Bill
I believe my wg works fine, with no wastegate backpressure I have a slight overboost, I would think that is what others has experienced, but I am of course not 100% sure.
03-22-2007, 10:12 PM
#38
Burning Brakes
I just have the .8bar spring in mine now, and it is definitley functioning properly. I also have a .7 and .3 springs, and I have thought about putting the 1.0 bar combination and seeing what it does. Realize though, that I live at 5,000 feet, so I am not sure if that makes a difference on my boost pressure or not.
Bill
Bill
03-22-2007, 11:41 PM
#39
Rennlist Lifetime Member
Steffan,
The stand dump comes wiht the install kit. This is the 930 dump. I am not sure whay they include it. The muffler has its own tip and muffler along with just the tip and pipe like Drew has.
The stand dump comes wiht the install kit. This is the 930 dump. I am not sure whay they include it. The muffler has its own tip and muffler along with just the tip and pipe like Drew has.
