TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

aftermarket fuel pump?

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Old Jun 22, 2002 | 08:36 PM
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sslee's Avatar
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From: Nacogdoches, Texas
aftermarket fuel pump?

I am putting a tbi in a non tbi car, is there a inline fuel pump that will work and what fuel press does it need. Isn;t there a reg in the tbi that adjusts pressure.
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Old Jun 23, 2002 | 11:00 PM
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sslee's Avatar
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From: Nacogdoches, Texas
somebody??
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Old Jun 28, 2002 | 10:01 PM
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TBI Pressure Regulator

There is a pressure regulator built into the TBI unit that equalizes and controls fuel pressure. It's primary purpose is to create an even fuel pressure for the injectors, since the fuel pump on stock-equipped TBI cars does not supply constant pressure on it's own (but rather supplies pulses of high-pressure fuel flow). It also serves to regulate how much fuel pressure is available to the TBI unit (this is the device that is replaced or modified in the various adjustable-fuel-pressure regulator mods).

As for in-line pumps, I don't know that one...
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