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SVTPerformance's Chain of Restaurants
The Blower Bistro
cobra r 5.4....low boost with vortech v7 ysi on
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<blockquote data-quote="Bill Anderson" data-source="post: 11902455" data-attributes="member: 26488"><p>Hello,</p><p></p><p>I just installed a Vortech v7 ysi on a 2000 cobra r 5.4.</p><p></p><p>8 rib 2.7" vortech renegade pulley</p><p></p><p>8 rib 6.5" innovator's west balancer</p><p></p><p>stock 8 rib tensioner</p><p></p><p>dayco gold micro v belt</p><p></p><p>paxton air to air charge cooler.</p><p></p><p>mondo bypass valve</p><p></p><p>pull through sct ba3000 maf with 4" piping from filter to blower inlet</p><p></p><p>VP MS-109 (just switched to Shell URT advanced)</p><p></p><p>last couple of pulls on dyno, car starts making approx 11.6 lbs of boost at around 4500, and stays there all the way to 7k.</p><p></p><p>car made 703 @ 6800 with 11.6 lbs.</p><p></p><p>My problem is that I expected around 18-20lbs with that pulley setup. I checked for boost leaks and verified that the bypass valve was not leaking.</p><p></p><p>there was a little belt dust at 1st, but no more.</p><p></p><p>I am pretty much out of ideas and wanted some input from you folks here:</p><p></p><p>Do I need to goto an overdrive balancer?</p><p></p><p>switch out the blower pulley to a reichard racing slotted version?</p><p></p><p>different tensioner....?</p><p></p><p> I hate swapping parts when I can't prove that is where the problem is, for example, I can't prove the belt is slipping, but I am at a loss as to why I am making so little boost.</p><p></p><p>my target hp was to be around 800 or so, I am sure if I can squeeze another 5-6 lbs, I will see it...any ideas guys? </p><p></p><p>I know this question has come up numerous times on the internet with a thousand different remedies....sure could use some sound direction here...</p><p></p><p>thanks in advance for the help</p></blockquote><p></p>
[QUOTE="Bill Anderson, post: 11902455, member: 26488"] Hello, I just installed a Vortech v7 ysi on a 2000 cobra r 5.4. 8 rib 2.7" vortech renegade pulley 8 rib 6.5" innovator's west balancer stock 8 rib tensioner dayco gold micro v belt paxton air to air charge cooler. mondo bypass valve pull through sct ba3000 maf with 4" piping from filter to blower inlet VP MS-109 (just switched to Shell URT advanced) last couple of pulls on dyno, car starts making approx 11.6 lbs of boost at around 4500, and stays there all the way to 7k. car made 703 @ 6800 with 11.6 lbs. My problem is that I expected around 18-20lbs with that pulley setup. I checked for boost leaks and verified that the bypass valve was not leaking. there was a little belt dust at 1st, but no more. I am pretty much out of ideas and wanted some input from you folks here: Do I need to goto an overdrive balancer? switch out the blower pulley to a reichard racing slotted version? different tensioner....? I hate swapping parts when I can't prove that is where the problem is, for example, I can't prove the belt is slipping, but I am at a loss as to why I am making so little boost. my target hp was to be around 800 or so, I am sure if I can squeeze another 5-6 lbs, I will see it...any ideas guys? I know this question has come up numerous times on the internet with a thousand different remedies....sure could use some sound direction here... thanks in advance for the help [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
cobra r 5.4....low boost with vortech v7 ysi on
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