Where is the boost controller located on a 91 talon Tsi and how do you install an after market boost controler?

Answer 1

The talon doesn't have a boost controller unless you install one. There are several ways to do so though. The best way is to go out and purchase an after market boost controller. It is also possible to get a valve, preferably a needle valve, and insert it into the the vacuum/pressure hose going into your blow off valve. Fine tuning it will restrict the pressure going to the BOV, and cause it to open up and release later and allow it to build up a higher amount of pressure. However, it is a bad idea to do this without first getting an accurate aftermarket boost gauge. Your factory gauge is not suitable for setting the boost in your car. If you put too much air into your car, it wont be able to supply the necessary fuel, and you could experience the whole "Fuel Cut" which feels like running into a brick wall. Other problems often caused by boosting your turbo pressures too high without the necessary upgrades are melted piston heads, and generally fried and blown engines. There is some room to increase the boost with everything else remaining factory, but not very much. i think it was something around up to 21 psi, as opposed to the 15 psi generally possible with the stock turbo and BOV. You can find out how to install an electronic boost controller and turbo timer by reading the manual here: http://pmtcrp.com/cart/bcu-electronic-boost-controller-with-turbo-timer-p-8.html EDIT by me.. sorry, this is my first post at this place.. I stumbled on it while searching on how to modify the stock EBC. Contrary to the above, I know that the 2g talon does have a boost controller, and there are websites out there that tell you how to up the boost a couple PSI and no, you don't put it in the vacuum line of the BOV, because it is precisely for that purpose.. a vacuum line that when the BOV sees vacuum in the intake manifold, after the throttle is closed, it will open the BOV and allow the excess boost on the other side of the throttle body to escape. To find the boost controller, find your turbo wastegate (which is what actually controls boost), and follow the vacuum/boost hose back until you run into a little module that has another hose plumbed back into the intake hose. Everything else from the above post sounds good to me. Hope this helps, as I use to think the same as the above.....