Power Driven 7mm Delivery Valves

$210.00

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1 Year Warranty ($16.80)

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7mm Delivery Valves

These Power Driven hot/street delivery valves are for those wanting to get maximum power out of their fuel setup with less concern for EGTs/smoke. With a flow of 90 cc over a stock pump, these delivery valves have the potential to produce an additional 135 hp over stock. These are the largest delivery valves we recommend running on the street.

What Is a Delivery Valve?

When it comes to the fuel side of things, 3 aspects of the P-pumped trucks determine how much power can be produced: the injection pump itself, the fuel injectors, and the delivery valves. In the P7100 pump, the delivery valves are essentially "check valves" installed between the pump and the injector, controlling the overall amount of fuel that goes into the injector before it is sprayed into the piston bowl. Consequently, a larger delivery valve allows a longer duration of the injection event, thereby increasing potential power. There is a tradeoff, however; as a larger delivery valve increases duration, it results in a longer, less efficient injection event. While the increase in flow does produce more power, it does so at the expense of heat and smoke. A smaller delivery valve paired with the same injector will have a shorter injection event. This results in a clean and concise burn, which will make less power but will ultimately drop EGTs and be more efficient. As a final note, stock/small delivery valves become restrictions around 3,000 rpm, where a larger delivery valve will maintain peak flow throughout the rpm range. This is a must for those seeking high-rpm power.