mr_K Posted April 4, 2015 Share Posted April 4, 2015 (edited) Hello everyone i have a problem with my glanza there is a boosting problem.Im running a ewg from tial it has a 0.8bar spring inside and ive connected a ebay mbc to the bottom port of the ewg and.left the top open.The turbo will spool up and when the boost kicks, towards redline the boost drops from 0.6bar to 0.4bar.Even if im running just wastegate pressure it doesn't hold the boost at 0.8bar.Why does it boost to 0.6 when ive got a 0.8bar spring fitted and why does the boost drop. You can literally feel the car slowing down.. More of a engine revving sound than the turbo if you understand what im saying.. Like there is no boost.Any help.or information on this?Thanks Edited April 4, 2015 by mr_K Quote Link to post Share on other sites
Gainzy Posted April 4, 2015 Share Posted April 4, 2015 Boost leak somewhere check all the pipes are you reading off boost gauge? Quote Link to post Share on other sites
mikey4410 Posted April 4, 2015 Share Posted April 4, 2015 what turbo u running matey and also have u checked for boost leaks properly ? Quote Link to post Share on other sites
5e colin Posted April 4, 2015 Share Posted April 4, 2015 your bottom niple is open ??? you boost pipe feeds bottom nipple from the gate you put a T piece in that pipe and feed to your manual controller then from manual controller to top port thats how i would do it Quote Link to post Share on other sites
mr_K Posted April 4, 2015 Author Share Posted April 4, 2015 Boost leak somewhere check all the pipes are you reading off boost gauge?Ive checked numerous times for leaks but i just cant find it. Quote Link to post Share on other sites
mr_K Posted April 4, 2015 Author Share Posted April 4, 2015 what turbo u running matey and also have u checked for boost leaks properly ?Im running a td05 20g turbo.I used to have the same problem even with my td04.Ive checked for leaks cant find any.One suspicious thing is the ewg gasket Can that be the reason? Quote Link to post Share on other sites
mikey4410 Posted April 4, 2015 Share Posted April 4, 2015 hmm.its a tricky one.my mates scooby does it with a td04L and we never really looked into it tbh but it tailed of quite a bit at end of revs. sorry I cant help.only thing I wud do is lap in the ewg valve and yeah do ure gasket check. Quote Link to post Share on other sites
mr_K Posted April 4, 2015 Author Share Posted April 4, 2015 (edited) your bottom niple is open ??? you boost pipe feeds bottom nipple from the gate you put a T piece in that pipe and feed to your manual controller then from manual controller to top port thats how i would do it This is the same way my mbc is fitted. But instead of that internal wg im using external and have the pipe fitted to the bottom nipple of the wastegate.Is this correct? Edited April 4, 2015 by mr_K Quote Link to post Share on other sites
5e colin Posted April 4, 2015 Share Posted April 4, 2015 like this then ?? like this you can controlle more boost the tighter the bleed valve the slower it releases it should be steady boost this way and deffo not drop also in that vid i only see a baptec kicking your ass ha ha Quote Link to post Share on other sites
mr_K Posted April 4, 2015 Author Share Posted April 4, 2015 What video? I accidentally uploaded a video of two integras racing is it that.? Quote Link to post Share on other sites
mr_K Posted April 4, 2015 Author Share Posted April 4, 2015 like this then ?? like this you can controlle more boost the tighter the bleed valve the slower it releases it should be steady boost this way and deffo not drop also in that vid i only see a baptec kicking your ass ha ha My mbc is the eBay ones. It comes with a little two nipple valve too.Monday im going to try the way you told me and see.if it holds if not my hks evc is on its way that should.do.the job Quote Link to post Share on other sites
mark1991 Posted April 14, 2015 Share Posted April 14, 2015 Knackered diaphragm in the ewg? Quote Link to post Share on other sites
mr_K Posted April 14, 2015 Author Share Posted April 14, 2015 Ive wired up the hks evc v and now it doesnt hold.boost.I fink im doing something wrong with the ebc.Diaphragm has been checked no visible cuts or rips, just slightly rubbed on the vacuum nipple.Ive wired up the hks evc v and now it doesnt hold.boost.I fink im doing something wrong with the ebc.Diaphragm has been checked no visible cuts or rips, just slightly rubbed on the vacuum nipple. Quote Link to post Share on other sites
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