Wastegates and PSI rating-
11-27-2005, 08:35 PM
#1
TECH Fanatic
Thread Starter
iTrader: (4)
Join Date: Nov 2005
Posts: 1,078
Likes: 0
Received 0 Likes
on
0 Posts
Wastegates and PSI rating- okay i have been doing research on turbos for the past couple of weeks to learn about how they work and what components to use. One component that i still have no idea how or why it works is the External wastegate
Questions-
1) how and why is a wastegate there ?
2)why is there a PSI rating on them like you can buy some w/ a 5.7 PSI or a 20 PSI rating. Why?
3) is it a necessary part of a turbo system?
Questions-
1) how and why is a wastegate there ?
2)why is there a PSI rating on them like you can buy some w/ a 5.7 PSI or a 20 PSI rating. Why?
3) is it a necessary part of a turbo system?
11-28-2005, 02:44 AM
#2
posted in the FAQ
The amount of boost generated by a turbo is controlled by a large valve called a Wastegate. The Wastegate is mounted on a flange that is generally welded onto the hot exhaust piece close to the turbo flange.
When boost reaches the desired level, a boost controller diverts pressure into the wastegate allowing the valve to open and vent exhaust gas out the other side of the valve, this prevents the turbo from spooling faster than it is already going and potentially slows it down some depending on how far the gate opens.
When boost reaches the desired level, a boost controller diverts pressure into the wastegate allowing the valve to open and vent exhaust gas out the other side of the valve, this prevents the turbo from spooling faster than it is already going and potentially slows it down some depending on how far the gate opens.
