You have no items in your shopping cart.

Subtotal: $0.00

Impco VPV Vacuum Operated Valve

More Views

VPV Valve

Availability: In stock



The Impco Vacuum Power Valve (VPV) is a vacuum operated valve, which is normally open.The VPV is designed to richen the air fuel ratio when the engine is under high load to boost power output. The VPV is mounted in the secondary test port of the regulator and is connected to an air valve vacuum port on the mixer and manifold vacuum. When engine load is low and manifold vacuum is high the VPV is held closed by the strong manifold vacuum signal. When the engine load is high and manifold vacuum is low the weak manifold vacuum signal allows the VPV to open and richen the air fuel ratio. A selection of restrictors is available to custom tailor the amount of fuel enrichment for different size engines.

Customer Reviews

Write Your Own Review

You're reviewing: VPV Valve

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.