550cc Denso - CDH Series Fuel Injectors

This is a Fiveomotorsport custom, flow-matched set of genuine Denso fuel injectors.
Use for modified engine only. Will fit OE.

• 550cc, high-performance fuel injectors

• All new O-rings/seals supplied for installation

• Note: This injector is part of the CDH Series. The body colors are brown, blue, yellow, and white depending on the flow rate.

FIVEOMOTORSPORT FUEL INJECTORS are custom-manufactured in small-quantity batches to achieve the highest quality product. Our injectors are all-fuels rated; including gasoline (MTBE), and E-85. The finished injectors are then flowed and inscribed with a control number. Data is recorded for each injector. The fuel injectors are then grouped into matched sets ready for shipping.

FLOW CHART: Each set is sold with a complete and unique flow-data chart indicating individual static flow rates at 3.0, 3.5, and 4.0 BAR. As well as 3.0 BAR dynamic pulse testing for idle (15% duty-cycle) and 50% duty-cycle. Along with a complete dead time off-set (latency) table. Flow matching was done with industry-standard equipment of the highest quality.
The tests were performed at varying temperatures to achieve realistic results. Linear tuning with excellent low-end, and idle rpm.
Fiveo is the only fuel injector seller that can claim this level of technology.

SPECIAL NOTE TO OUR E85 USERS:
Ethanol based fuels tend to "dry" the fuel injector outlet orifices. Customers should be made aware that this may cause a "sticking" problem in fuel injectors that sit idle for a prolonged period of time. It is suggested for applications running high ethanol content based fuels, to periodically incorporate into their fuel-system-maintenance a drop of light petroleum-based lubricant for each fuel injector. This is also considered to be good maintenance, but not essential, for stainless steel based (Black-Ops Series) fuel injectors.  It should also be noted that for optimum performance the entire fuel system should be made up of ethanol approved materials including all fuel lines/fuel pump/fuel filter, etc.

Use for Super Street or racing 4 cylinder, single or multi-valve, normally-aspirated or forced-air induction engine applications:

2002-05 Subaru 2.0L 4 cylinder Turbo,

2001-03 Mazda (Speed) Protege,

1997-04 Mitsubishi.

This is a high performance, high-volume fuel injector.

The fuel delivery is from a single-hole disc that delivers a medium-wide cone-shape spray pattern for maximum fuel atomization.

Body Design: Composite plastic

Flow rate at 3 bar: 550cc/min

Length: 2.52 inches, 64 mm

Diameter: 0.63 inches, 16 mm

O-rings: Top 11.5mm OD/Bottom 16mm seal

Resistance: 14.0 Ohms

Connector type: Sumitomo