Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI DAE Option User Manual - Manual (Page 6)

Bigstuff3 GEN3 PRO SEFI DAE Option - User Manual
Turbo Shaft Speed
This connector must interface with a two (2) wire Variable Reluctance (VR) style sensor (not a hall-
effect device). Calculates a 16 bit RPM with 1 pulse per revolution.
Contact BigStuff3 for more information on the interface required for this input.
Turbo Back Pressure
This input is used to measure pressure on the turbine side of the turbo charger.
Note: A two (2) foot long section of ¼” copper tubing should be used to isolate the sensor from
the very high exhaust temperatures. It is important that the interface between the tubing and the
exhaust collector be perpendicular (at a 90
o
angle of each other). The sensor should be mounted at the
other end of the tubing, in parallel (not perpendicular) with the tubing.
BigStuff3 recommends using pressure sensor part number JMI-003-014 (1/8” pipe thread, 0 – 150-psi
pressure transducer) for this application. The DAE Turbo Back Pressure harness connector was made
to interface with part number JMI-003-014.
The same pressure sensor can be used for measuring fuel and oil pressure!
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