Vortech Engineering Supercharger Kit

From Nissan 350Z & 370Z Wiki

Vortech introduced the second supercharger for the Nissan 350z behind the quick-to-market Procharger. Some of the problems with the Procharger were overcome with the Vortech system, the most significant being the introduction of ignition timing control.

Vortech is a well respected name in performance engines and supercharging systems. This supercharger kit has become very popular and has yielded the highest peak numbers out of all the 350z supercharger systems currently available.

1 Kit Overview
2 Suggested Upgrades
3 Images
4 Dyno Charts
5 Super Street Install
6 Resources

Kit Overview

Vortech Parts list

Manufacturer	Vortech
List Price	$5,895.95
Found Price	$4,900 (+$370 polished)
Application	2003-2006 350Z VQ35DE, 2005-2006 VQ35DE Rev Up
Base PSI	7psi
Base Power	340hp
Base Torque
Compressor	Vortech V2
Intercooler	Front mount, full width
Piping
Fuel	OEM injectors, Vortech FMU, Walbro 155 inline pump
EMU	Split Second Timing Box
Air Filter	K&N
Blow Off Valve	Vortech Bypass Valve

Vortech V-2 SQ SC-Trim Supercharger

Vortech V-2 SQ SC-Trim

Helical cut gear profile with SQ technology
Near silent operation
Fits engines up to 680 horsepower
Maximum airflow: 1,000 CFM *
Maximum boost pressure: 20 PSI *
Maximum impeller speed: 53,000 RPM
Adiabatic efficiency: 75% **
Available with straight or curved discharge
Part numbers below do not include drive pulley
8.75" Wide, 9.44" Tall, 5.52" Deep (not including input shaft)

Engine Management

NOTE: This may not be correct. The exact Split Second box used is not currently known.

Split Second FTC1

Split Second FTC box is used for timing and fuel control. The timing is controlled by introducing a delay into the crank angle position sensor equivalent to the number of degrees the unit is programmed to retard the ignition by. Fuel is controlled through two different methods. First the Vortech supplied auxiliary fuel pump is turned on once boost is registered by the internal map senor and second the airflow meter signal is modified to add or subtract fuel as necessary. The Vortech design uses the stock injectors and uses additional fuel pressure to introduce excess fuel to the engine under boost. The FTC box must be spliced and hardwired into your main engine harness close to the ECU. Autosport wiring makes a pigtail connector that can be used to splice into to save your factory harness from permanent modification.

Vortech Fuel Management Unit (FMU)

Vortech FMU

The Vortech Standard Fuel Management Unit (FMU) is designed for use on multi-point electronic fuel injected engines. It is a secondary fuel regulator that installs in series with a stock regulator on the return line to the tank. The unit increases fuel pressure in proportion to boost pressure (this assumes the pump being utilized is of sufficient pressure and flow to deliver the fuel required). All Vortech FMUs feature CNC machined, 6061-T6 aluminum construction and a blue anodized finish.

Walbro 155 in-tank fuel pump

Walbro 155

Maxflow Race Bypass Valve

Maxflow Racing Bypass Valve

Our Maxflow Racing Bypass/Blow-off Valve flows 320 CFM@8 PSIG and features a compact design that is ideal for imports and others with tight engine compartments. These units will retrofit to standard HKS/Greddy style mounting pads and out performs anything its size. Bypass valve is preset to open at four to five inches of vacuum and Blow-off valve is preset to open at 10 to 11 inches of vacuum. Installation gasket is included. The outlet mates to a 1.75" hose.

Drive Belts

The Vortech kit uses a set of ribbed belts (non-cog) for the accessory drive and a cog belt transferâ€™s power through the main plate to the main blower gear. This design works but also causes belt slippage issues and the need for constant belt tightening. It is recommended that the Gatorback belt be swapped for a Gates belt upon initial installation. Once the vehicle has been driven a few times it should then be tightened. If the vehicle is not making boost in first or second gear or not making it until late in the RPM range then the belt is slipping.