is there any difference between a fuel pump from a v8 car and a v6 car ?
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Re: is there any difference between a fuel pump from a v8 car and a v6 car ?
The entire sending unit is different.
The LS1 fuel pump unit has an internal bypass pressure regulator, sends the fuel at 58 PSI to dead-ended fuel rails with no return flow, and no vacuum compensation.
LT1 sending unit simply sends unregulated pressure fuel to recirculated rails, a vacuum compensated fuel pressure on the return line, maintaining 43.5 PSI at the rails, minus intake manifold vacuum.
The LS1 fuel pump unit has an internal bypass pressure regulator, sends the fuel at 58 PSI to dead-ended fuel rails with no return flow, and no vacuum compensation.
LT1 sending unit simply sends unregulated pressure fuel to recirculated rails, a vacuum compensated fuel pressure on the return line, maintaining 43.5 PSI at the rails, minus intake manifold vacuum.
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Aug 10, 2002 11:01 AM