Watto89 Member 38 Member For: 16y 5m 6d Gender: Male Location: Townsville Posted 24/07/10 03:18 AM Share Posted 24/07/10 03:18 AM Gday, I recently got a new actuator put on and im wondering what type of actuator it is.It has a bar code on it with 445963 - 135 58330 04160The reason im asking is because ive had boost issues and im trying to figure out why my boost is rising to 16psi ~ before I back of the throttle.And ive got the actuator connected directly to the turbo Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 5d Gender: Male Location: @ my laptop Posted 24/07/10 04:16 AM Share Posted 24/07/10 04:16 AM It's a 6 lb actuatordepending on when the boost in inscreasing in the rpm, you could have a jammed flapper, bad actuator or in need of a port job and larger flapper. Link to comment Share on other sites More sharing options...
Watto89 Member 38 Member For: 16y 5m 6d Gender: Male Location: Townsville Posted 24/07/10 06:40 AM Author Share Posted 24/07/10 06:40 AM Its a brand new actuator, and I can move the wastegate back all the way, there is no exhaust leaks or boost line leaks... shouldnt it only get to 6psi then stop? Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 5d Gender: Male Location: @ my laptop Posted 24/07/10 07:42 AM Share Posted 24/07/10 07:42 AM You would expect unless the wastegate port is too small, where is it getting too much boost? as it comes on or as the rpm builds? Link to comment Share on other sites More sharing options...
orangeute338 Suspended 260 Member For: 16y 6m 3d Gender: Male Posted 24/07/10 10:07 AM Share Posted 24/07/10 10:07 AM is the dump pipe standard? what else have you changed? sh*t dont just overboost for the fun of it;) Link to comment Share on other sites More sharing options...
Watto89 Member 38 Member For: 16y 5m 6d Gender: Male Location: Townsville Posted 24/07/10 10:44 AM Author Share Posted 24/07/10 10:44 AM it has a 4" dump to 5" Cat to twin 2'5", I can hold put my throttle to half and it will stay around 6, but when I go full it will rise to 16+ psi Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 5d Gender: Male Location: @ my laptop Posted 25/07/10 12:31 AM Share Posted 25/07/10 12:31 AM you are not answering the main question, what rpm? if you want help you need to give the correct info Link to comment Share on other sites More sharing options...
foxtrot Member 77 Member For: 16y 3m 23d Posted 25/07/10 12:37 AM Share Posted 25/07/10 12:37 AM Hi Sounds like it needs a bigger wastegate flap. Cheers MD Link to comment Share on other sites More sharing options...
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