Hyper - Flow

F40 Installation Guide

F-40 Catalytic Converter installation Instructions
 

Provided by:

Dave Helms
Scuderia Rampante
1780 55th St. B5
Bolder, CO 80301

Remove upper heat shield mounting hardware (2 on either side of waste gate and 2 by muffler to cat flange)

Remove both thermo probes from Catalytic Converter

Place a drop of engine oil on the threads of the (6) nuts and bolts holding the Catalytic Converter to the muffler flanges and remove all.

Disconnect the electrical plugs for both oxygen sensors. Place a drop of oil at the junction point of the sensor to the pipe. Break the sensor loose and unscrew ½ turn and work the oil into the threads to prevent seizure of threads upon removal. Remove both sensors and store in a clean, dry area.
 

Remove the bolts connecting the Catalytic Converter to the turbo exhaust flange and remove the converter. Inspect the turbo flange and verify the nitrogen seal ring is still in place. These seal rings are ok for reuse if not damaged.

Remove sample tubes from removed Catalytic Converter, wire brush threads and apply anti seize to threads of the sample tube taking great care not to get any inside the sample tube itself. Install tubes to the Hyper Flow converters and tighten up.

At this time inspect the centering fit of the tail pipes in the rear bumper hole. If re-centering is required, loosen the 3 bolts and nut combos on the waste gate outlet pipe to muffler flange. With these loose, slide the muffler in or out on this pipe until the tail pipes are centered. Tighten the 3 bolts to retain in this position.

Place slip flange on converter outlet followed by the supplied seal ring. Anti-seize the converter to turbo bolts and install. Snug up the 3 flange bolts but do not tighten at this time.

Install the nut and bolt assemblies holding the Catalytic Converter to the muffler, reversing the 2 upper bolts with the springs on the muffler side of the flange (towards rear of car) and the lower in its original position. Snug up bolts with the heat shield studs at a 12:00 o’clock position.

Torque all 6 converters to turbo bolts to 29 NM.

Wire brush the threads of the removed oxygen sensors taking care not to allow any debris to get on the sample portion of the sensor. Apply anti seize to the threaded portion only and install to the converters, torque to spec.

Tighten all bolts and nuts at the muffler to Catalytic Converter junctions.

Tighten the 4 pinch bolts on the slip flanges at the outlet of the converters.

Reinstall thermo probes for the slow down ECU’s.

Suggestion:
Replace the slow down ECU’s with Ferrari part # 142581. Ferrari finally built a reliable unit and it is well worth having in place.

Reinstall heat shield.