Dual Port wastegate actuator
AGT Dual Port Internal wastegate actuator Evo 4-9, X
ALL THE BOOST
Finally, a full page and tech on our new wastegate actuators for the Evo's!
Why 26 psi base pressure? We want all the boost possible from an internal gate system.
You're not going to run this gate on your Grandma's old Buick, this is for getting the most out of a stock frame turbo, no "low boost" here
These come with every AGT Single Scroll Turbine housing equipped turbo we offer, When running this turbine housing, there's no reason not to have the most gate possible
Vacuum Line and Boost Controller Configuration's
3 port Electronic Boost Controller: the Simple way
Pictured here is a Grimmspeed 3 port ECBS. More commonly these are simple 3 Port MAC valves. And all 3 port MAC valves can be installed the same as this one.
If you have this type of boost controller already, then you'll be familiar with this setup.
This is the standard vacuum line setup for ECU controller boost through your 3 port ECBS,
Center Port #3 of the ECBS ran to the boost reference source
Left Port #2 to the top port of the wastegate actuator
Right Port #1 is left open to air
Utilizing Top and Bottom Ports:
Now for the more uncommon vacuum line setups.
This are more commonly found in external wastegate installs, and this is where the Dual port wastegates really start to shine.
Just like an external wastegate, utilizing the opposite port on the gate can result in making more boost and better boost holding capability in the top end.
When using the top port alone like a standard internal wastegate, you can only take away so much boost reference pressure from that top port to make and hold boost before back pressure overcomes the system
But when combined with the bottom port, using a 3 port to direct boost pressure away from the top, and into the bottom port. Pressure at the bottom port, will actually help keep the wastegate stay shut.
-Vacuum line routing to 3 port ECBS-
Left Port #2 to bottom port
Center #3 Port open to air
Right Port # 1 is ran to a "T" Fitting that connects the top port and boost reference port together
This configuration offers very fine ECU boost control management while utilizing both ports
"3 port like 4 port":
And now for the setup that will net the most of everything, Some refer to this as "3 port like 4 port"
utilizing all 3 ports on the ECBS in conjunction with the turbo and Dual port wastegate actuator. Boost reference doesn't get wasted in this configuration, all boost pressure that gets taken away from the top port, is completely directed to the bottom port to get THE MOST holding and boost making capability from an internal wastegate boost control system
For turbos like our 57mm, 62mm, and especially the 64mm, in our Single Scroll, Stainless steel turbine housing, this is what we recommend.
Not for everyone, but the built setups, ready to shoot for the moon
(or the Stock Block Hero's out there ***not recommended on stock block**)
This is what you want
you will have less resolution in the ECU boost control tables, small Wastegate Duty Cycle changes will have a large Impact on boost increasing, but that is the trade off for the extra holding capability of this setup