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Old 09-19-2001, 08:04 PM   #11
Rev
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Join Date: Nov 1998
Location: Houston, Tx.
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I don't think vapor lock is possible on a FI engine with an in tank fuel pump. The fuel pressure is usually 35-50 psi in the line so the injectors will spray correctly.

Vapor lock occurs on caebureted engines with a mechanical fuel pump on the engine. That creates negative pressure (vacuum) in the fuel line that leads to boiling in the fuel line and that is where vapor lock comes from.

Rev

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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
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