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Anyone running twin precision 6466
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<blockquote data-quote="95Cobra_Iowa" data-source="post: 16370149" data-attributes="member: 180708"><p>[USER=68944]@tt335ci03cobra[/USER] I'm jealous of your intake manifold among other things! You've got quite the unique setup. </p><p></p><p>I've inherited a setup that was built around 2007.</p><p>8.5 compression 4.6</p><p>Fox Lake CNC Cobra Heads</p><p>Stage 3 crower Supercharger cams (don't help with spool, but they perform well on the top end)</p><p>HPP Turbo kit with old Precision 61MM Turbos (best I can tell these are 670 hp rated old gen turbos from around 2007)</p><p>Sullivan intake with HPP upper</p><p>It was running a returnless fuel system with stock computer.</p><p></p><p>I've switched to a Holley Dominator system with a fore return fuel system that gives me room to turn up the boost.</p><p>Once I got this installed and tuned I was able to pump up the boost to 30 PSI, I don't see peak boost to over 5800 RPM and its producing good power at 1065 HP. On 19lbs I see full boost around 5300 RPM</p><p></p><p>I've got a new engine being built with turbo cams from @NASVT, and I'm bumping the compression a half point to 9:0 to 1 all in a teksid block setup instead of the iron block I have now. My hope is that with the tweaks I'm making I'll keep spool the same that I have now, and can push the power closer to the 1200-1400HP. Maybe its wishful thinking and I'll end up downsizing to some 6062 turbos for quicker spool and still make 1000-1200hp with quicker spool like you're trying to accomplish.</p><p></p><p>I'd be scared to death to run high boost like yours with a stock computer, but obviously its worked for you. I'm jealous of the intake too, from the conversations I have it requires a custom sheet metal intake to run the 5.4 heads if you can't find that intake, so I stuck with the 4.6 based heads on this engine with fox lake CNC, went with bigger valves, and extra hand porting to get some extra flow over what I'm doing now. With all that work, it would still be better off with GT500 heads. </p><p></p><p>[USER=183643]@98 svt[/USER] I'm running a t56 with a Mcleod setup like [USER=68944]@tt335ci03cobra[/USER] for a manual transmission. I'm not launching at a track on slicks, so I haven't had any issues with it to this point.</p></blockquote><p></p>
[QUOTE="95Cobra_Iowa, post: 16370149, member: 180708"] [USER=68944]@tt335ci03cobra[/USER] I'm jealous of your intake manifold among other things! You've got quite the unique setup. I've inherited a setup that was built around 2007. 8.5 compression 4.6 Fox Lake CNC Cobra Heads Stage 3 crower Supercharger cams (don't help with spool, but they perform well on the top end) HPP Turbo kit with old Precision 61MM Turbos (best I can tell these are 670 hp rated old gen turbos from around 2007) Sullivan intake with HPP upper It was running a returnless fuel system with stock computer. I've switched to a Holley Dominator system with a fore return fuel system that gives me room to turn up the boost. Once I got this installed and tuned I was able to pump up the boost to 30 PSI, I don't see peak boost to over 5800 RPM and its producing good power at 1065 HP. On 19lbs I see full boost around 5300 RPM I've got a new engine being built with turbo cams from @NASVT, and I'm bumping the compression a half point to 9:0 to 1 all in a teksid block setup instead of the iron block I have now. My hope is that with the tweaks I'm making I'll keep spool the same that I have now, and can push the power closer to the 1200-1400HP. Maybe its wishful thinking and I'll end up downsizing to some 6062 turbos for quicker spool and still make 1000-1200hp with quicker spool like you're trying to accomplish. I'd be scared to death to run high boost like yours with a stock computer, but obviously its worked for you. I'm jealous of the intake too, from the conversations I have it requires a custom sheet metal intake to run the 5.4 heads if you can't find that intake, so I stuck with the 4.6 based heads on this engine with fox lake CNC, went with bigger valves, and extra hand porting to get some extra flow over what I'm doing now. With all that work, it would still be better off with GT500 heads. [USER=183643]@98 svt[/USER] I'm running a t56 with a Mcleod setup like [USER=68944]@tt335ci03cobra[/USER] for a manual transmission. I'm not launching at a track on slicks, so I haven't had any issues with it to this point. [/QUOTE]
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