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The Terminator
Terminator Talk
2003cobra#2's 3.4 Whipple Build
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<blockquote data-quote="03cobra#2" data-source="post: 16663971" data-attributes="member: 52057"><p>I wanted to post to bring this back for a quick update. Car has been running well except for a small drivability issue. I stumbled across this post</p><p></p><p>[URL unfurl="true"]https://www.svtperformance.com/threads/low-pressure-spring-on-boost-bypass-valve-on-2-9-whipple.1103918/[/URL]</p><p></p><p>And I believe this is my exact problem.</p><p>A part throttle hiccup when the boost bypass shuts as I transition into boost. This week I'll be pulling the blower off and doing a fresh set of intake gaskets, and modifying the hose from the blower plate to the boost bypass solenoid to accept a nitrous jet. I have a few different size jets ordered so I can fine tune how quickly the bypass shuts to get into boost. Apparently this is a known issue with some whipple setups. Newer cars that have this problem are drive by wire and it can mostly be tuned out, not so with our cars.</p><p></p><p>Other then this hiccup the car runs nice with the cams and 3.4. I'll keep you posted.</p></blockquote><p></p>
[QUOTE="03cobra#2, post: 16663971, member: 52057"] I wanted to post to bring this back for a quick update. Car has been running well except for a small drivability issue. I stumbled across this post [URL unfurl="true"]https://www.svtperformance.com/threads/low-pressure-spring-on-boost-bypass-valve-on-2-9-whipple.1103918/[/URL] And I believe this is my exact problem. A part throttle hiccup when the boost bypass shuts as I transition into boost. This week I'll be pulling the blower off and doing a fresh set of intake gaskets, and modifying the hose from the blower plate to the boost bypass solenoid to accept a nitrous jet. I have a few different size jets ordered so I can fine tune how quickly the bypass shuts to get into boost. Apparently this is a known issue with some whipple setups. Newer cars that have this problem are drive by wire and it can mostly be tuned out, not so with our cars. Other then this hiccup the car runs nice with the cams and 3.4. I'll keep you posted. [/QUOTE]
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2003cobra#2's 3.4 Whipple Build
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