Available in EFI -8/-6AN and EFI -10/-6AN


The Racetronix REG-FI886 regulator's high flow design is recommended for fuel systems which flow upwards of 680LPH. The revised ball-seat valve design is resistant to clogging and offers responsive flow control for stable pressure regulation. Recommended base pressure range is 35-78PSI. 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.


⦿ New distinctive design
⦿ Fuel pressure tracks boost / vacuum at 1:1 ratio
⦿ 35-78PSI adjustment range (maximum)
⦿ 1/8" NPT female gauge port with matching color plug
⦿ 5mm Allen adjustment screw with 17mm lock nut
⦿ O-ring sealed adjustment screw
⦿ 1/8" Female NPT vacuum/boost port
⦿ x 5/32" barb adapter - included
⦿ Mounting bracket
⦿ Stainless Hardware
⦿ Anodized black top / silver bottom
⦿ Field serviceable
⦿ Fully assembled and tested

EFI Adjustable for
G7 Buick GN, Typhoon, Syclone


⦿ Buick Grand National 1986 - 1987
⦿ Buick Turbo Regal Limited / T-Type 1984 - 1987
⦿ GMC Syclone / Typhoon 1991
⦿ Pontiac Turbo Trans Am 1989, 20th Anniversary


⦿ Mounts to factory and aftermarket fuel rails with SS bolts (inlcuded)
⦿ Boost sensitive with a 1:1 ratio
⦿ E85 compatible
⦿ Compatible with factory return line 14 x 1.5mm Saginaw (o-ring) discharge/return port
⦿ ORB boss added for optional ORB metric fitting (increased flow)
⦿ 1/8" Female NPT front-facing fuel pressure gauge port
⦿ 1/8" Female NPT side-facing boost/vaccum ports

The Racetronix REG-G7B1 regulator is made from CNC machined billet T6 6061 anodized aluminum for maximum reliability and corrosion resistance. The dual-layer fiber-reinforced diaphragm is compatible with gasoline and E85 fuels. To reduce boost/vacuum leaks we have incorporated an o-ring seal under the pressure adjustment screw. There are three boost/vacuum ports on this regulator, one on the top in the factory location and two on the sides. This allows the regulator to be configured in the factory fashion using the top vacuum/boost port or using the 1/8" NPT side ports for alternate boost line configurations or sensors. Plugs are included to block off all unused vacuum/boost ports both top and sides. A 5/32" hose barb is included if one wishes to use one of the side ports. The front 1/8" NPT fuel pressure port can be used to mount a fuel pressure gauge or sensor. Two sets of screws and standoffs are inluded for mounting the regulator on factory or common aftermarket fuel rails (i.e. Champion).

When using the boost/vaccum side ports we recommend our ADF-481603 adapter, -3 PTFE hose and fittings to be run to your reference port or vacuum block. Racetronix does NOT recommend the use of Nylon push lock brake hose fittings PERIOD!