adjusting turbo actuator

1. mallboy Saxperience Forum Bum Joined: Dec 2005 Wolverhampton Posts: 3000 MK1 VTR TURBO

   #1 25th April 2007, 00:25

   i have a t2 turbo and am very sure it has the standard actuator. does anyone know if i adjust the length of the actuator rod, it will increase the boost as i am only runnig 3psi and 5psi when bleed valve fully open!!!!!
2. dingle Frequent Poster Joined: Jan 2007 forfar Posts: 631 mk1 white saxo vts

   #2 25th April 2007, 18:52

   if i remember right bud u have to shorten the rod
3. woodsy Saxperience Forum Bum Joined: Jan 2006 area 51, navada desert Posts: 2809 mk1 1998 silver saxo vts

   #3 25th April 2007, 19:17

   is it not adjustable ... i think iirc you shorten the rod by tighting it up
   
   dont quote me though ...
4. stevenet15 Saxperience Forum Bum Joined: Jun 2006 aylesbury buckinghamshire Posts: 4822 Astra Turbo, saxo vts, punto turbo

   #4 25th April 2007, 20:56

   what car did the turbo come off? most cars like rst's etc... boost at around 12psi with a standard actuator. and using a bleed valve u should be able to adjsut the boost more then an extra 2 psi so something dont seem right there. jsut as an example on my puto gt it boosted at 15psi with no blled valve and after i fitted a bleed valve i could adjsut it anywhere between 15 and 25psi. maybe the actuator is fooked, u could get a -31 actuator as a replacement and use a bleed valve with that.
5. mallboy Saxperience Forum Bum Joined: Dec 2005 Wolverhampton Posts: 3000 MK1 VTR TURBO

   #5 25th April 2007, 22:50

   Quote:

   Originally Posted by stevenet15 what car did the turbo come off? most cars like rst's etc... boost at around 12psi with a standard actuator. and using a bleed valve u should be able to adjsut the boost more then an extra 2 psi so something dont seem right there. jsut as an example on my puto gt it boosted at 15psi with no blled valve and after i fitted a bleed valve i could adjsut it anywhere between 15 and 25psi. maybe the actuator is fooked, u could get a -31 actuator as a replacement and use a bleed valve with that.

   i agree with you on that. i think its the bleed valve i got with the kit isnt too good as it only small. will invest in a better bleed valve. does anyone have any recommendations? - dont really want an electronic one though!!!
6. stevenet15 Saxperience Forum Bum Joined: Jun 2006 aylesbury buckinghamshire Posts: 4822 Astra Turbo, saxo vts, punto turbo

   #6 25th April 2007, 23:36

   Quote:

   Originally Posted by mallboy i agree with you on that. i think its the bleed valve i got with the kit isnt too good as it only small. will invest in a better bleed valve. does anyone have any recommendations? - dont really want an electronic one though!!!

   i ahve used turbosmart and never had any problems with that one, why dont u disconnect the hose on the actuator and then block it up on the otehr side and then take the car for a run, it should keep the wastegate shut and make the turbo make full boost but jsut go slow and see if the boost is raised
7. mallboy Saxperience Forum Bum Joined: Dec 2005 Wolverhampton Posts: 3000 MK1 VTR TURBO

   #7 25th April 2007, 23:51

   the turbo is a t2 and im sure the gut said it was off an r5. do you know what psi they run standard, mine runs at 3-4 psi standard!
8. stevenet15 Saxperience Forum Bum Joined: Jun 2006 aylesbury buckinghamshire Posts: 4822 Astra Turbo, saxo vts, punto turbo

   #8 25th April 2007, 23:58

   Quote:

   Originally Posted by mallboy the turbo is a t2 and im sure the gut said it was off an r5. do you know what psi they run standard, mine runs at 3-4 psi standard!

   standard there 8/9psi if i remember right but more then capeable of 15psi with a bleed valve
9. johnnyg_vts Established Member Joined: Dec 2006 Fleetwood Posts: 2244 2002 Saxo VTS

   #9 26th April 2007, 07:42

   sounds like your actuator is kippered.
   the spring and/or diaphragm inside the actuator perish.
   a new actuator should fix the boost problem.