Project NissanTitian - Supercharger Install

We're going to charge past the first few steps of this installation process because of our limited page space. These steps are covered in the instructions and have to do with upgrading the factory in-tank fuel pump. Basically, you drop the tank and install a higher-flow fuel pump (included with the kit), which provides a slight increase in fuel volume. Once that was completed, the stock intake manifold was removed and each intake runner tube was prepped with a solvent.

With the composite OE intake-manifold assembly removed from the engine compartment, it was necessary to remove a few items and reinstall them on the new aluminum Stillen intake manifold assembly. These included both of the stock fuel-injection rails, all of the fuel injectors, and all of the intake seals (shown).

This kit requires a short sequence of wiring modifications to allow the Stillen piggyback electronic controller to interface with the stock ECU. The kit's instructions include a detailed wiring diagram of this, but the process does require some patience to complete. Overall, the wiring modifications are pretty basic.

This is the Stillen piggyback ECU mounted to the underside of the fuse-block lid.

It's best to have two people when you lower the new supercharger assembly into the engine compartment. The unit is both heavy and awkward to handle.

Here is the new Stillen supercharger assembly mounted to the top of the engine. Note that there are two separate fuel-injection rails visible in the photo. The additional aluminum fuel rail (red arrow) provides fuel to the secondary set of injectors during wide-open throttle events. Otherwise, the stock fuel rails and injectors are doing most of the work.

Here you can see the Stillen tech tightening up the difficult-to-reach rear assembly bolts. These are hard to get at because of spatial limitations. Check out the stainless steel driveshaft running alongside the supercharger housing. This shaft transfers drive torque to the rear of the supercharger assembly, where the compressor drive pulleys are located.

This is the new inlet neck. This piece was designed and built specifically to adapt the OE throttle body to the supercharger housing. This part was sealed with a special anaerobic sealer to prevent leaks.

The Stillen supercharger system has two performance settings. The first is more aggressive for everyday street driving. The second setting is for towing. Basically, this changes the mapping on the supercharger's supplemental fuel system so that the system does not overfuel the motor during heavy hauling. Here you can see the two-position toggle switch we installed on the center lower dash panel, on one of the unused switch blanks.