Thread: Discovery 1 14CUX

There are three iterations of the Disco 1 V8 so you need to specify.

I think but not sure that the 3.5 was flapper.

I think but not sure the V belt 3.9 in the interims was 14 CUX

The serpentine belt in the 3.9 updates was definitely 14CUX

There are three iterations of the Disco 1 V8 so you need to specify.

Thye are all 14CUX .

The 3.5 only differs in programming but all hardware is the same. ie injectors fuel rail, etc etc. There are some fuel rail differences between early and late but not important if you are using either a 3.5 or 3.9 plenum. The differences are the position of the fuel temperature sensor and FPR but this is only important if you want to fit a Thor manifold.
The 3.5 throttle body may be a tiny bit smaller going on later 4.6 being bigger than 4L.

A 3.9 set will run a 3.5 perfectly.

You will also need some way of rigging a VSS ( vehicle speed sensor) as 14CUX cuts injectors if sensing moving and under 1500RPM, and also increases revs when stopping so that the change to first is damped. I don't know whether the 88 has a VSS or just a speedo cable. You may be able to fit a driveshaft mounted VSS for an aftermarket cruise control or just go without it.
Regards PhilipA

What are all the parts I will require to do the conversion. I am thinking the ECU, loom, injectors, fuel rail, plenum cover with stepper motor. Is there more I need like the actual intake manifold and trumpets? I can rig up a speed sensor easily enough and fit some O2 sensors.

And air flow meter.