ryan_04 Member 97 Member For: 16y 1m 3d Gender: Male Posted 13/08/12 12:51 AM Share Posted 13/08/12 12:51 AM bit of a thread mine but 1st half of this vid explains it well 1 Link to comment Share on other sites More sharing options...
Ciaran Thooperrrrrrr Donating Members 2,768 Member For: 13y 5m 24d Gender: Male Location: NOR, Western Australia Posted 13/08/12 02:12 AM Share Posted 13/08/12 02:12 AM Good vid, basically Link to comment Share on other sites More sharing options...
MA91CK billet turbos and weathered engines dont mix Donating Members 1,346 Member For: 12y 7m 5d Gender: Male Location: Wollongong Posted 13/08/12 02:27 AM Share Posted 13/08/12 02:27 AM Pretty much obviously a good vid, basically Link to comment Share on other sites More sharing options...
camisole Member 8 Member For: 13y 5m 20d Posted 06/11/12 05:47 AM Share Posted 06/11/12 05:47 AM Interesting reading from allRecently put my car on the dyne for a tune as it has had all the usual mods fitted, cooler, full exhaust, pump, injectors. The tuners have told me it is over boosting and I need to replace the waste gate as it's spiking to mid twenty's in boost and keeps popping the air intake off the throttle body, I am no expert when it comes to forced induction but any help would be great help. Cheers Link to comment Share on other sites More sharing options...
MA91CK billet turbos and weathered engines dont mix Donating Members 1,346 Member For: 12y 7m 5d Gender: Male Location: Wollongong Posted 06/11/12 06:09 AM Share Posted 06/11/12 06:09 AM If you have a full exhaust chances are it will overboost as the Watergate now cannot keep up so the excess air goes into your engine... Not good when the same amount of fuel that goes in for 12 goes in for 25. Basically ask for a port job and bigger flapper. Only way to stop it mate. Link to comment Share on other sites More sharing options...
potty Member 36 Member For: 12y 9m 8d Gender: Male Location: greta nsw Posted 25/04/14 11:20 AM Share Posted 25/04/14 11:20 AM hi all, just been reading some of these posts and my question is I got 04 ba xr6t running 14psi and car is surging when I put my boot into it, I still have a standard actuator on turbo, would I be losing boost through the actuator and causing it to surge. Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 5m 25d Gender: Male Posted 25/04/14 11:59 AM Share Posted 25/04/14 11:59 AM Actually, if I can hijack for a moment, running a bigger pressure (spring) and you want to drive around like a sane person 99% of the time, how does this effect the overall drivability of the car? And how does it relate to how the boost controller map is set? I assume that the map needs to be changed as to not make the turbo spool like crazy when your not pushing (or become too knife edge between wanting to spool up at inopertune times) Link to comment Share on other sites More sharing options...
potty Member 36 Member For: 12y 9m 8d Gender: Male Location: greta nsw Posted 26/04/14 06:40 AM Share Posted 26/04/14 06:40 AM and this helped how!!!!!! Link to comment Share on other sites More sharing options...
oplock27 Member 36 Member For: 12y 1m 7d Gender: Male Posted 31/05/14 01:38 PM Share Posted 31/05/14 01:38 PM (edited) pulled my turbo off to put new studs/nuts in and im tossing up whether to put on a 12psi actuator or leave the stock one. currently flash tuned at 12psi with the stock actuator so I imagine putting a 12psi actuator in and connecting via boost solenoid could see some major overboosting seeing as ecu still assuming stock actuator spring rate. thinking of bypassing solenoid and letting new actuator be controled directly from vac line from compressor so should open at 12 (or thereabout) just wondering how much boost leak will occur before 12psi and if this can be set by the preload on the arm. appreciate your advice. cheers Edited 31/05/14 01:39 PM by oplock27 Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 29d Gender: Male Location: @ my laptop Posted 31/05/14 11:34 PM Share Posted 31/05/14 11:34 PM if your going to do something do it properly or not at all 1 Link to comment Share on other sites More sharing options...
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