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Re: Tbi swap build thread
Quote:
Originally Posted by FRENCHBLUE72
Hey guys I put on a summit brand fuel fuel pump that is rated at a free flow rate of 43 gph and a max pressure of 85 psi will this work as is or should I regulate it somehow?
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As long as you have 5/16 or 3/8" return line built-in FPR should be able to handle it. When manufactures specify fuel pressure they usually publish "deadhead" pressure. Typical FP has a two dimensional performance curve - Y axis GPH and X axis working fuel pressure. Most marketing data published is very incomplete! So at near zero fuel pressure this pump is capable of delivering 43 GPH, but as fuel pressure increase the volume decreases (usually non linear curve) until deadhead pressure is reached.
//RF
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"The Beast"
1975 Chevrolet C20 longbed
350/ 700R4! with 3inch body lift
Dual Flowmasters Super 40's!
TBI retrofit completed (2007-07-29) 
New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)
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