Q&A regarding engines, turbos, and intercoolers and power upgrades


Postby thkohlb » Sun Sep 26, 2004 3:31 am

What is the function of the wastegate and what are the benifits to the upgrade kits that i see?
Members don't see the above ad. Register now - it's free!
Tk 1992 Celica All Trac
Club Member
Posts: 213
Joined: Tue Aug 10, 2004 4:15 am
Location: Cincinnati

Postby Gary » Sun Sep 26, 2004 3:34 am

It lets exhaust bypass the turbine in order to limit boost.
There are 2 types of wastegate, internal and external.
CT26 comes with internal wastegate. If you look at the turbine side of the turbo, you will see the wastegate door (flapper). The door is connected to the wastegate actuator (via wastegate arm or rod) The actuator push/pull the arm to open/close the door when the boost is high enough to overcome spring setting in the actuator.

CT20B (similar to CT26)


Supra CT26 with single flapper and arm removed.


93 ST185
GTFour God
Posts: 6430
Joined: Sun Aug 08, 2004 1:03 pm
Location: Carolina

Return to Performance and Power

Who is online

Users browsing this forum: No registered users and 1 guest