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Forced Induction & Engine Management
boost drop while accelerating..
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<blockquote data-quote="FatAssRubber" data-source="post: 2046614" data-attributes="member: 48972"><p>hi renxun,</p><p></p><p>i am driving a 1jz too. From my observation there are a few possibilities :</p><p></p><p>1. like some of the bro here said, leaking vacuum hose.</p><p>2. Leaking Manifold hose</p><p>3. Leaking BOV. Original 1jz comes with BOV. or if u have aftermarket BOV, take it off.</p><p>4. if this just started to be a problem, it might be your turbine efficiency is out already, need to send for dynamic balancing. I suppose it is a twin turbo with 2 units of CT12.</p><p></p><p></p><p>JinKL... a properly setup of wastegate be it manual or electronically should not give more than 0.05 bar spike. If it does, you need a bigger wastegate.</p><p>if you need my help, call me at 012-7177082</p><p>ciao</p></blockquote><p></p>
[QUOTE="FatAssRubber, post: 2046614, member: 48972"] hi renxun, i am driving a 1jz too. From my observation there are a few possibilities : 1. like some of the bro here said, leaking vacuum hose. 2. Leaking Manifold hose 3. Leaking BOV. Original 1jz comes with BOV. or if u have aftermarket BOV, take it off. 4. if this just started to be a problem, it might be your turbine efficiency is out already, need to send for dynamic balancing. I suppose it is a twin turbo with 2 units of CT12. JinKL... a properly setup of wastegate be it manual or electronically should not give more than 0.05 bar spike. If it does, you need a bigger wastegate. if you need my help, call me at 012-7177082 ciao [/QUOTE]
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boost drop while accelerating..