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Electronic Enrichment Valve Assembly


Electronic Enrichment Valve Assembly


Redesigned! New fancy body is easier to mount, easier to plumb and it's easier to change pills.

Just like our Electronic Lean out valve, this fantastic valve isn't just a re-purposed nitrous solenoid.

This normally open 12VDC valve boasts 3500 PSI operating pressure, flows 7 GPM of methanol @ 100 PSI (no pill), -8 female ports and draws less than 1.7A. It is fantastic for this kind of duty. Rated for CONSTANT DUTY, this valve can be kept open continuously without fear of overheating.

The most common use is as an enrichment device in a mechanical fuel injection system. Since this valve is always open until activated, the user would strategically split up the main pill area and put some of it in this valve. When enrichment is desired, the valve is activated and the bypass area in the valve is effectively subtracted from the system causing a richer AFR. For example, screw blower applications typically need enrichment at the top end vs. a lean out.

When coupled with a timer, or pressure switch, this valve can be used as a "low speed lean out" by enriching the fuel system off the starting line for the first 80-100'. A richer mixture for best torque off the line needs to be changed well before half track and at that point the valve is switched off (open). This strategy works best with big motors, big blowers in heavier cars with converters.

This valve can also be used for traction control purposes by exaggerating a rich condition and safely rolling off power when activated.

Also available in a normally CLOSED version for lean out purposes.

If you use an MSD PowerGrid, you could use a relay to activate the valve using the grid's "OUTPUT SWITCH" timer. Or, you could use an RPM activated switch to activate the valve.

The lightweight aluminum valve body is hard anodized for long life. The assembly includes a brass pill plug, button head plugs in one of the IN and OUT ports, and -6 male fittings for attaching your hoses. This body accepts standard Enderle screw-in bypass pills (not supplied).

The coil can be rotated to position the non-polarity sensitive leads in any direction desired. The thru holes in the valve body allow bolting the valve to the vehicle with 1/4" socket head cap screws (not supplied).

This valve is considered "pilot operated" which means it requires some pressure (typically 8 to 10 PSI) in order for it to open. When you test this valve on the bench, be sure to put pressure on the "IN" port with an air hose or similar.

An IN and OUT in each side means easier plumbing...use the port that works for you. The plugged, unused ports can serve as an extra pressure or return port for other purposes.


This valve comes default with methanol/nitro compatible seals. If gasoline safe o-rings are required, please specify in the notes section of your order.


This valve is supplied with plain 16" wire leads for connection to your vehicle. We offer a couple of standard connection options above at additional cost. Both halves and pins are supplied and YOU do all the crimping. Both the Molex (white) and Deutsch (grey) connectors shown above are the same as used on many MSD ignition products and require special barrel-type crimpers. The connector options in the pull-down menu below are also supplied with 16" of black fire-sleeve to protect the leads.


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