TAARKS Fuel Pulse Damper – AN6 ORB, R35 GT-R Damper

The TAARKS AN6 fuel pulse damper screws into a -6 ORB port, normally on the fuel rail, and smooths out the pressure pulses created by the injectors and fuel pump. It uses a genuine Nissan R35 GT-R damper in a CNC machined housing made for aftermarket fuel systems.

Each time the injectors open and close, and with every stroke of the fuel pump, a small pressure pulse travels through the fuel system. On some setups these pulses cause knocking or booming from hard lines, uneven fuel delivery between injectors, and lean spots or a stumble that is hard to tune out – often around 3000-5000 rpm and more common with large aftermarket injectors. The damper’s spring-loaded diaphragm lets the system volume change slightly, which absorbs the pulses.

A damper will not fix a fuel system that is undersized or a tune that is wrong, and if fuel pressure is already steady with no line noise it will not change anything. Most engines need one damper, mounted as close to the fuel rail as practical.

What’s Included

– 1x CNC machined damper housing
– 1x Genuine Nissan R35 GT-R fuel pulse damper
– 1x Stainless steel circlip
– 1x O-ring

Sold Separately

– Fuel pressure regulators: Turbosmart FPR6, Turbosmart Kompact
– Fuel pressure sensor: Syltech MSPP 10 bar – 1/8 NPT

Specifications

– Part number: 407-024-P
– Port: -6 ORB (AN6 O-ring boss), direct mount
– Damper: genuine Nissan R35 GT-R fuel pulse damper
– Housing: CNC machined, held with a stainless steel circlip
– Application: universal

Fitting Notes

Fit it into a spare -6 ORB port on the fuel rail, or as close to the rail as practical. If the rail has no matching port, use the inline version or an adapter fitting – the damper still works through an adapter. Check the O-ring is seated before tightening.

Other versions: AN8 ORB direct mount, and the inline AN8 ORB damper with a 1/8 NPT sensor port.

Wiring and Setup

Fuel pressure pulses are too fast to see on a mechanical gauge. To check them, log a fuel pressure sensor at a high rate in the ECU.

NZ Wiring Stock

– Held in stock at NZ Wiring in Petone.