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SVTPerformance's Chain of Restaurants
The Distillery
Early death of a walbro
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<blockquote data-quote="JeremyH" data-source="post: 15870347" data-attributes="member: 160292"><p>A lot of factors can play a role in the life of the pump(s). Could just be bad luck or flaw in the pump, but also you could post up the rest of your system and how it is setup to maybe identify a weak link in your setup. So stuff like base pressure, boost pressure and system restrictions rail/regulator config? How are they getting fed power, does the car see a lot of street driving constant use and so on.</p><p></p><p>I do know the 267 (pressure relief around 80psi) and 274 (higher pressure version) have been on back order to a lot of distributors for the past week or so as well, so at least you were able to get a replacement.</p><p></p><p>From what I have been seeing if you run around 3bar or 40ish base pressure the 267 version is fine. If you run closer to 4 bar or 55psi or higher base pressure you should go with the higher pressure 274 version of the pump.</p><p></p><p>Also you don't truely know what pressure the pumps are having to put out unless you measure pressure at the hat outlet or pre filter. It can be significantly higher (10-20psi even on a seemingly healthly system) that plays a big role in the life of a pump, especially these bigger pumps with high current motors. Worse case scenario I have heard of pumps melting and upon inspection a dirty filter was causing a 40psi restriction, so even at idle that cars pumps were trying to put out 80psi just to get 40psi to the rails.</p><p></p><p>Ti has owned the walbro since early 2000's and a few years ago began to phase out the brand name on their products.</p></blockquote><p></p>
[QUOTE="JeremyH, post: 15870347, member: 160292"] A lot of factors can play a role in the life of the pump(s). Could just be bad luck or flaw in the pump, but also you could post up the rest of your system and how it is setup to maybe identify a weak link in your setup. So stuff like base pressure, boost pressure and system restrictions rail/regulator config? How are they getting fed power, does the car see a lot of street driving constant use and so on. I do know the 267 (pressure relief around 80psi) and 274 (higher pressure version) have been on back order to a lot of distributors for the past week or so as well, so at least you were able to get a replacement. From what I have been seeing if you run around 3bar or 40ish base pressure the 267 version is fine. If you run closer to 4 bar or 55psi or higher base pressure you should go with the higher pressure 274 version of the pump. Also you don't truely know what pressure the pumps are having to put out unless you measure pressure at the hat outlet or pre filter. It can be significantly higher (10-20psi even on a seemingly healthly system) that plays a big role in the life of a pump, especially these bigger pumps with high current motors. Worse case scenario I have heard of pumps melting and upon inspection a dirty filter was causing a 40psi restriction, so even at idle that cars pumps were trying to put out 80psi just to get 40psi to the rails. Ti has owned the walbro since early 2000's and a few years ago began to phase out the brand name on their products. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
Early death of a walbro
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