Which Actuator ?

[markg]

Hi All, Wanted to get the collected wisdom on which actuator to use. Currently I have a forge twin port and a GT Tuning T3 single port. What are the pro's and con's if any over a single or dual port?. I will be getting a T25 turbo and ideally want to give the actuator to the turbo company so they can set it up for the max pressure I am going to run. Based on looks alone I would probably go with the GT Tuning but happy to be persuaded otherwise.

 

[Adey]

Dual port is good if you have the oem pipe setup, but if you run a single line just use the single port actuator. I think the standard pipe work increases boost as the revs raise though a decent actuator usually stops it dropping anyway. I could be very wrong though lol

 

[Bob]

The twin port is only of use when you part throttle, so for example on a steep hill. With a single port on a steep hill you either have full boost or none at all, the twin actuator allows the exhaust gases to adjust the boost pressure so you can run part throttle and matching boost pressure , rather than all or nothing...make sense??

 

[DaveL485]

The twin port is only of use when you part throttle, so for example on a steep hill. With a single port on a steep hill you either have full boost or none at all, the twin actuator allows the exhaust gases to adjust the boost pressure so you can run part throttle and matching boost pressure , rather than all or nothing...make sense??

A mechanical version of the Amal valve on the 21 Turbo. Clever!

 

[Brigsy]

You want a single port genuine garrett -3 on a t25 sized turbo.