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Wastegate Actuator

jmorri15

Well-known member
Joined
Jul 11, 2009
Messages
171
Location
Kemp, TX
So I have a greddy td05h 18g which is now a 20g and ive got two problems. First I do not believe the diaphragm is good and second the actuator doesnt seem to line up perfectly, and never has since i got the turbo. I will post a picture later. Well anyways my question relates to finding a replacement one. Ive googled it till im blue in the hands but I cannot seem to find one meant for the dsm 18g. I see some meant for the subaru 18g will that fit? If someone knows a place to pick up an actuator without spending insane amounts of money that'd be awesome.
thanks
 

Launch

Well-known member
Joined
Aug 17, 2006
Messages
350
Location
Texas
there is no such thing as a dsm specific 18G actuator. All td05H actuators for the 14b/16g are the same unless "shimmed" internally by the factory.

05H based 20G's need good 02 housing/turbine housing port work done CORRECTLY to get around some of the creep issues.
Fp used to sell modified versions for the t25 and evo, doubtful anything for the dsm actuator tho
 

jmorri15

Well-known member
Joined
Jul 11, 2009
Messages
171
Location
Kemp, TX
i was wondering because of the difference in compressor housing size from the td05h 16g and 18g if it would still function correctly/be at the right angle and length.
ill have to see if it has boost creep after i break in this engine. i dont want to go much bigger because my 2.3l should spool this turbo like a 14b and i want to be able to use this car as a dd.
 
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