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Re: Fuel pump question
Quote:
Originally Posted by RustyPile
If your truck (you didn't mention the year) has the return line, then yes, you need to install the pump designated for that type system. Fuel formulation has undergone drastic changes since 1868. Modern fuel injection systems operation pressures are upwards of 5 - 10 times the operating pressures of the carburetor era. Today's fuel formulations are prone to vapor lock at carburetor fuel pressures. A fuel return system on these old vehicles is a good step toward preventing vapor lock..
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Don’t have it on any other old car I have they only get non ethanol gas and never have had vapor lock . This is on my 72 it has no vapor canister or pollution controls other than PCV .
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Mark
72 c20 custom camper Husky edition,
66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark
1969 AMX ,
1968 c20 stepside ,85 K20
1977 Suburban sold
68 anniversary.
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