Description
REG-FI666BG – Fuel Pressure Regulator, EFI -6 AN / -6 AN, E85, Black/Gold
New distinctive design
Fuel pressure tracks boost / vacuum at 1:1 ratio
Composite fiber reinforced E85, Gas, & Diesel compatible diaphragm
35-78 PSI adjustment range (maximum)
1/8″ NPT female gauge port with matching color plug
2 x -6 AN ORB inlet ports
1 x -6 AN ORB return port
5mm Allen adjustment screw with 17mm lock nut
O-ring sealed adjustment screw
1/8″ Female NPT vacuum/boost port
1 x 5/32″ barb adapter – included
Mounting bracket
Stainless Hardware
Anodized black top / gold bottom
Field serviceable
Fully assembled and tested
The Racetronix REG-FI666 regulator’s high flow design is recommended for fuel systems which flow upwards of 680 LPH. The revised ball-seat valve design is resistant to clogging and offers responsive flow control for stable pressure regulation. Recommended base pressure range is 35-78 PSI. This gen III regulator has a common 1/8″ NPT boost / vacuum port (vs. 1/16″) which more easily connects to a wide range of common fittings. An o-ring seal has been added under the adjustment screw / washer to reduce vacuum / boost bleed which improves regulator response and tracking error when using small signal hoses. Two -6 AN ORB inlet ports allow for a high volume of pass-through fuel. The secondary port may be plugged for single ended configurations.
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