Cookie91 New Member 7 Member For: 8y 9m 19d Posted 09/08/16 03:21 PM Share Posted 09/08/16 03:21 PM Ok so I have a ba xr6t that has aftermarket intercooler an pipeing 1000cc injectors iwg75 wastegate with 12psi spring Exshaust etc to match Car is dyno turned an tuned for 12psi.. was capped at 12psi due to faulty boost solenoid and needing valve springs upgraded So they capped my boost to 12psi an bypassed the boost solenoid was running great for awhile (2 months) Now my boost is reaching 17-19psi of boost checked for boost leaks etc an tried installing a boost tee to attempt to bring my boost down with no success car seems to run fine with the 17-19psi I can tell its leaning out abit but not ovally bad an dont want to blow a rod out the side So any help on why the sudden over boosting? An any tips on gow to bring my boost back down to a safe level Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/ Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 8d Gender: Male Location: Perth Posted 10/08/16 12:46 AM Share Posted 10/08/16 12:46 AM Get the wastegate ported and car tuned properly. 2 Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606711 Share on other sites More sharing options...
Cookie91 New Member 7 Member For: 8y 9m 19d Posted 10/08/16 12:59 AM Author Share Posted 10/08/16 12:59 AM Car has been tuned propley besides bypassing boost solenoid.... was dyno tuned by a what is MENT to be a good performance shop... Could the acctuaor be clapped out?? Looking into external waste gate now... What sort/size external should I be looking at? Wanting to get dome decent numbers out of her in the very near future Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606724 Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 4m 3d Gender: Not Telling Posted 10/08/16 12:59 AM Share Posted 10/08/16 12:59 AM (edited) On 09/08/2016 at 3:21 PM, Cookie91 said: car seems to run fine with the 17-19psi I can tell its leaning out abit but not ovally bad an dont want to blow a rod out the side So any help on why the sudden over boosting? An any tips on gow to bring my boost back down to a safe level Expand Tell us where you are located and somebody will recommend a quality workshop for you. STAY off boost entirely or you'll be like one of the few BA's I've seen on gumtree that list a 'hole in the block' as one of the features! could be something like a blocked cat causing it from the crappy tune your car's been running. Edited 10/08/16 01:00 AM by johnxr6t Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606725 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 8d Gender: Male Location: Perth Posted 10/08/16 01:05 AM Share Posted 10/08/16 01:05 AM Blocked cat will cause loss of boost not over boost. Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606728 Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 4m 3d Gender: Not Telling Posted 10/08/16 01:06 AM Share Posted 10/08/16 01:06 AM On 10/08/2016 at 1:05 AM, Ralph Wiggum said: Blocked cat will cause loss of boost not over boost. Expand isn't there something that can cause overboost with the exhaust? must be tripping, either way can we agree it's not good for a tuner to bypass the wastegate control solenoid? Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606730 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 8d Gender: Male Location: Perth Posted 10/08/16 01:10 AM Share Posted 10/08/16 01:10 AM On 10/08/2016 at 1:06 AM, johnxr6t said: isn't there something that can cause overboost with the exhaust? must be tripping, either way can we agree it's not good for a tuner to bypass the wastegate control solenoid? Expand Yes, changing to a high flow cat without supporting boost control mods (ie wastegate porting) But a blocked cat will cause an exhaust restriction that will hurt boost. Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606734 Share on other sites More sharing options...
Cookie91 New Member 7 Member For: 8y 9m 19d Posted 10/08/16 01:16 AM Author Share Posted 10/08/16 01:16 AM (edited) Im located brisbane northside car was tuned by mercury motorsports only 2months ago I also disagree with by passing the solianoid I have a turbosmart eboost 2 street lined up just waiting to pick it up I already have highflow cat & good exshaust I am looking into an external wastegate can anyone point me in the right direction on witch to get... (I do all mech work my self) only goes to shop for tune etc Edited 10/08/16 01:18 AM by Cookie91 Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606740 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,332 Member For: 19y 7m 8d Gender: Male Location: Perth Posted 10/08/16 01:18 AM Share Posted 10/08/16 01:18 AM You don't need to go ex gate although it would give you the best control. A simple wastegate port job and larger flapper would also be suffcient. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606742 Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 4m 3d Gender: Not Telling Posted 10/08/16 01:19 AM Share Posted 10/08/16 01:19 AM Can somebody in QLD give this guy a recommendation for workshop? @genuine honest person or someone else up that way. Link to comment https://www.fordxr6turbo.com/forum/topic/92292-need-help-overboosting-bad/#findComment-1606743 Share on other sites More sharing options...
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