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Old 02-28-2002, 15:54   #1 (permalink)
The Old Bloke
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Join Date: Feb 2002
Location: North Queensland
Posts: 124
confused Fuel Pump & regulator

Hi all,

I'm still trying to sort out which fuel pump to use on my Capri.

I've sort of narrowed it down to either a Bosch inline unit or the Holley Volumax.

The question I have with the Bosch unit is doI need a regulator. These are rated at 45psi which appears to be the normal fuel rail pressure (from other comments on the board).

I can not find any specs on the Holley unit but from there web site it would appear that a regulator is needed. Can anyone provide details and/or specs.

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Old 03-01-2002, 01:29   #2 (permalink)
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You will need a fuel regulator for both setups. The regulator restricts the fuel flow causing a pressure build up. If you don't have a regulator in the fuel line (after the fuel rail) the fuel pressure will be zero as the fuel will just flow back into the tank and not out of the injector. The bosch pump has a max pump pressure of 45 psi is a factory optimum for pump life.
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