Precision Raceworks Toyota GR Supra AFS Upgrade Kit (No Top Hat)

OVERVIEW

The Precision Raceworks GR Supra AFS Upgrade Kit is the Stand-Alone AFS pump group supplied without a top hat. It is for MkV Supras that already run the Precision Raceworks G-Series / Supra billet fuel pump top hat (601-0316), so the owner does not pay for a second hat.

Instead of sharing the factory supply, the AFS puts its own pump or pumps in the tank and runs dedicated AN6 lines to the port injection rail. The factory primary pump is PWM controlled and backs off around 5 bar, and the high-pressure pump control pushes fuel back into the low side, so a shared supply oscillates. A dedicated system holds steady pressure that scales 1:1 with boost, which lets you run smaller port injectors, reduces how hard the DI system has to correct and makes the car easier to tune.

Two flow ratings are offered: AFS.460 with a single Walbro 535 and AFS.800 with dual Walbro 535 pumps.

SPECS

• AFS.460 (601-0340): single Walbro 535 (F90000295), 460 LPH at 3 bar
• AFS.800 (601-0339): dual Walbro 535 (F90000295), 800 LPH combined at 3 bar
• Mounts to the Precision Raceworks G-Series / Supra billet top hat (601-0316); no top hat included
• Fully adjustable 1:1 boost-referenced billet fuel pressure regulator
• 10 micron USA-made microglass fuel filter, E85 rated
• AN6 smooth-bore PTFE feed and return lines with billet fittings
• Plug-and-play connectors and configurable pump activation harness
• Works with stock or upgraded primary fuel pumps; 100% ethanol compatible

PARTS INCLUDED

• AFS pump group (pump or pumps on the mounting arm) for the flow rating selected, adjustable 1:1 billet regulator, 10 micron microglass filter, AN6 PTFE feed and return lines, billet fittings, plug-and-play connectors and the configurable pump activation harness
• No billet top hat is included

TECH RESOURCES

Required Extras

• Precision Raceworks G-Series & Supra A9X Billet Fuel Pump Top Hat (601-0316) must already be fitted; this kit does not include a top hat — sold separately (not stocked by Speed Logic).
• A port injection kit with the fuel rail mounted above the intake manifold is required; the AFS feeds that rail and does nothing on its own: Precision Raceworks B58 Port Injection Kit. Plate-style spacer port injection is not supported by the standard AFS kits; contact us before ordering for a plate-style setup.
• Precision Raceworks Solid State Relay Upgrade Kit — only if your tuner calls for solid state relays; one kit per AFS pump (AFS.460 needs one, AFS.800 needs two); sold separately (not stocked by Speed Logic).
• Precision Raceworks G-Series & MkV Supra PNP Harness for Billet Top Hat (201-0419 upper / 201-0386 lower / 622-0296 both) — optional plug-and-play adapter to the factory fuel pump wiring; sold separately (not stocked by Speed Logic).
• A tune that controls the port injection system and the AFS pump activation output, set up by your tuner.

Installation

• Stand-Alone AFS install guide, Revision 02 (PDF): AFS Installation Guide Rev 02
• MkV Supra AFS install video (Precision Raceworks): youtu.be/8I5yIu_v3tY
• Speed Logic offers professional installation; contact us for a quote.

Notes

• The AFS is designed only for port injection setups with the fuel rail mounted above the intake manifold. Plate-style spacer port injection is not supported by the standard kits; contact us first.
• If your car does not have the Precision Raceworks billet top hat, order the complete Precision Raceworks Toyota GR Supra / BMW Z4 G29 Stand-Alone AFS (601-0333 / 601-0332) instead.
• Price is for the item selected only; labor is not included.
• Confirm your engine code and chassis before ordering.

PART NUMBER

• 601-0340 — AFS.460, no billet top hat
• 601-0339 — AFS.800, no billet top hat

VEHICLE APPLICATIONS