Quote:
Originally Posted by s14unimog
look at the factory one on there... Without knowing who made it, what it looks like, or what engine we're talking about; you're going to have to figure it out.
A FPR adjusts the return flow. By decreasing the amount of fuel that returns to the tank, you increase pressure; opposite goes for decreasing pressure.
If you're asking this question, are you sure you even need it?
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thanks for your interest. well its a sr20det blacktop and i have the sard fpr.. im pretty sure i need one being that i have 550cc inj, 255 fuel pump, and a turbo upgrade. how does the sard one work??