wrxkilla05 Posted August 26, 2011 Share Posted August 26, 2011 so I was reading a magazine and there was an article about a couple mods that showed big gains on project cars, one of them being a boost actuator. My question is, do they have psi limits? I have a cnt catted dp, catless up, cobb intake,x02 exhaust, stage 2 tune and soon will be putting on a fmic. I will be getting retuned but if I got the avo actuator from rallitek for instance, would that be able to run with the high psi's of my tune? Link to comment Share on other sites More sharing options...
GTTuner Posted August 26, 2011 Share Posted August 26, 2011 I replaced my 7-9# actuator with an AVO 15# unit. It helps spool and helps hold boost up in the higher RPM ranges. Your WGDC tables need to be adjusted along with turbo dynamics for the upgraded actuator to work properly. Link to comment Share on other sites More sharing options...
wrxkilla05 Posted August 26, 2011 Author Share Posted August 26, 2011 so if i get the avo one does that mean i would only be able to run 15psi of boost? Link to comment Share on other sites More sharing options...
GTTuner Posted August 26, 2011 Share Posted August 26, 2011 so if i get the avo one does that mean i would only be able to run 15psi of boost? No, it means your static spring pressure for the wastegate is set to 15psi. Your boost control soleniod is bleed type which bleeds pressure off before it gets to the 9 psi actuator. Just adding a 15 psi actuator would probably cause over-boost fuel cut. Your ECU doesn't know you put a 15psi actuator on there, it will assume it is a 9 unless you adjust tables to prevent overboost and boost spikes. I hit my target of 19psi then the BCS takes over to maintain targets. Link to comment Share on other sites More sharing options...
wrxkilla05 Posted August 26, 2011 Author Share Posted August 26, 2011 sending you a pm about tuning Link to comment Share on other sites More sharing options...
fishbone Posted October 7, 2011 Share Posted October 7, 2011 Thread revival, I hope nobody minds. Are these actuators worth it? Do they make a nice difference on our tiny VF40s? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.