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The Terminator
Terminator Talk
255 lph fuel pump
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<blockquote data-quote="hpbyhermann" data-source="post: 5926765" data-attributes="member: 4712"><p><strong>Very good question with a very simple answer!</strong></p><p></p><p>Those pumps are constant voltage pumps, the 03-04 cobras use a variable voltage pump system since the fuel system is returnless. Without a way to return unused fuel the pumps voltage is varied from 0 to as much as 15 volts (at least the parameter can be set that high in a custom tune) to keep up with demand or lack of it. If you used the conventional 255 walbro pumps they will fail since the pump can't deal with the range of voltage they will encounter in a 03-04 application. Hope this helps explain some!:beer: Hermann:rockon:</p></blockquote><p></p>
[QUOTE="hpbyhermann, post: 5926765, member: 4712"] [b]Very good question with a very simple answer![/b] Those pumps are constant voltage pumps, the 03-04 cobras use a variable voltage pump system since the fuel system is returnless. Without a way to return unused fuel the pumps voltage is varied from 0 to as much as 15 volts (at least the parameter can be set that high in a custom tune) to keep up with demand or lack of it. If you used the conventional 255 walbro pumps they will fail since the pump can't deal with the range of voltage they will encounter in a 03-04 application. Hope this helps explain some!:beer: Hermann:rockon: [/QUOTE]
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255 lph fuel pump
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