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<blockquote data-quote="Black306" data-source="post: 7585060" data-attributes="member: 4780"><p>I have a theory that the small hole is designed so that the pumps are incapable of generating an excessive amount of pressure. I tried using a small air compressor to check and it could only generate ~30psi with the small hole open. I'm assuming with stock pumps @ ~13V pumping gasoline, the pressure would peak around 75psi. It may also be something like a KB FRPS disc, a small hole used to soften or slow down pressure spikes. I'm almost tempted to make a rig to check. Anyone want to donate a couple stock Cobras pumps in the name of science? <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>If this turns out to be true, a simple fix may be to enlarge the hole very slightly.</p></blockquote><p></p>
[QUOTE="Black306, post: 7585060, member: 4780"] I have a theory that the small hole is designed so that the pumps are incapable of generating an excessive amount of pressure. I tried using a small air compressor to check and it could only generate ~30psi with the small hole open. I'm assuming with stock pumps @ ~13V pumping gasoline, the pressure would peak around 75psi. It may also be something like a KB FRPS disc, a small hole used to soften or slow down pressure spikes. I'm almost tempted to make a rig to check. Anyone want to donate a couple stock Cobras pumps in the name of science? :) If this turns out to be true, a simple fix may be to enlarge the hole very slightly. [/QUOTE]
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