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2011-2014 Mustangs
Power-Adders
e85 and paxton with jms BAP
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<blockquote data-quote="Shaun@AED" data-source="post: 15140979" data-attributes="member: 32381"><p>We have seen a few pump failures as well. I believe most of the fuel pump failures were on applications where the BAP was wired on full time. Less than 1/2 a dozen total pump failures in the last 3 years, and another 1/2 dozen 'weak' pumps that do not flow as they should, one on an all-motor Boss.</p><p></p><p>These are very high output pumps from the factory and when run at full power they produce significant heat. The fuel keeps the pump cool, so running low on fuel with the pump running at full voltage (or higher) can cause failures.</p><p>The factory runs 1/2 voltage till WOT (technically till a fuel flow threshold is triggered), at which point it runs full voltage. It's recommended to not go WOT with a BAP when the fuel level is low. Being a saddle tank 1/2 tank of fuel will have the pump fully submerged and that is the fuel level I prefer to race with, but you can go a bit lower and still have the pump submerged which keeps it cool.</p></blockquote><p></p>
[QUOTE="Shaun@AED, post: 15140979, member: 32381"] We have seen a few pump failures as well. I believe most of the fuel pump failures were on applications where the BAP was wired on full time. Less than 1/2 a dozen total pump failures in the last 3 years, and another 1/2 dozen 'weak' pumps that do not flow as they should, one on an all-motor Boss. These are very high output pumps from the factory and when run at full power they produce significant heat. The fuel keeps the pump cool, so running low on fuel with the pump running at full voltage (or higher) can cause failures. The factory runs 1/2 voltage till WOT (technically till a fuel flow threshold is triggered), at which point it runs full voltage. It's recommended to not go WOT with a BAP when the fuel level is low. Being a saddle tank 1/2 tank of fuel will have the pump fully submerged and that is the fuel level I prefer to race with, but you can go a bit lower and still have the pump submerged which keeps it cool. [/QUOTE]
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2011-2014 Mustangs
Power-Adders
e85 and paxton with jms BAP
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