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SVT Shelby GT500
Help 5.4l gt509 control pack no higher than 3900rpm
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<blockquote data-quote="Mock4147" data-source="post: 15673488" data-attributes="member: 179593"><p>Hello members I have a 1967 f100 pickup truck with a 2007 gt500 engine and trans and the ford racing 5.4l control pack with pcm and wiring. The engine has the following mods </p><p>Vmp gen II-R tvs</p><p>Id 1000 injectors</p><p>2.4 upper pulley</p><p>10% lower</p><p>Twin 67mm throttle body</p><p>Jlt cai</p><p>170 thermostat</p><p>Vmp triple pass dual fan heat exchanger</p><p>Fore invocations return fuel system with twin 465 pumps </p><p></p><p>The truck ran great on pump gas tuned my vmp </p><p>I switched to e85 and it ran fine I drove it down to event vmp was at and had them finish the e85 tune on the dyno it ran fine getting 721rwhp and 695 torque</p><p></p><p>On the way home from the event the truck would no go over 3900rpm. This happens in every gear as long as I shift before 3900rpm truck runs fine but once I hit 3900rpm the truck fall flat on it face like it it a brick wall leans all the way out and won't go past 3900rmp </p><p></p><p>I have checked everything I can think of I had vmp look at tune and all looks good. I called fore innovations and the fuel system is performing great. I switched backed to 93 octane tune and still will not go past 3900rmp. It is like the engine goes into limp mode but that feature is not programmed into the pcm on the control pack</p><p></p><p>On the data long everything looks good accept the maf count does not move I have changed the maf and no difference. I called ford racing and they are looking into it but I was hope someone here has had the same problem </p><p></p><p></p><p></p><p>Sent from my iPhone using the <a href="http://r.tapatalk.com/byo?rid=92568" target="_blank">svtperformance.com mobile app</a></p></blockquote><p></p>
[QUOTE="Mock4147, post: 15673488, member: 179593"] Hello members I have a 1967 f100 pickup truck with a 2007 gt500 engine and trans and the ford racing 5.4l control pack with pcm and wiring. The engine has the following mods Vmp gen II-R tvs Id 1000 injectors 2.4 upper pulley 10% lower Twin 67mm throttle body Jlt cai 170 thermostat Vmp triple pass dual fan heat exchanger Fore invocations return fuel system with twin 465 pumps The truck ran great on pump gas tuned my vmp I switched to e85 and it ran fine I drove it down to event vmp was at and had them finish the e85 tune on the dyno it ran fine getting 721rwhp and 695 torque On the way home from the event the truck would no go over 3900rpm. This happens in every gear as long as I shift before 3900rpm truck runs fine but once I hit 3900rpm the truck fall flat on it face like it it a brick wall leans all the way out and won't go past 3900rmp I have checked everything I can think of I had vmp look at tune and all looks good. I called fore innovations and the fuel system is performing great. I switched backed to 93 octane tune and still will not go past 3900rmp. It is like the engine goes into limp mode but that feature is not programmed into the pcm on the control pack On the data long everything looks good accept the maf count does not move I have changed the maf and no difference. I called ford racing and they are looking into it but I was hope someone here has had the same problem Sent from my iPhone using the [url=http://r.tapatalk.com/byo?rid=92568]svtperformance.com mobile app[/url] [/QUOTE]
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Help 5.4l gt509 control pack no higher than 3900rpm
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