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Old 06-02-2004, 05:32   #1 (permalink)
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which Falcon XR6 4.0

What is the best (and cheapest) bang for buck in the XR6 series EBII+ and the best to Upgrade
will all XR heads inc BA fit on any 4.0ltr block?
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Old 06-02-2004, 05:44   #2 (permalink)
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Re: which Falcon XR6 4.0

all XR heads EBII-AU are interchangeable between all blocks EA-AU. the VCT AU and BA wont run properly unless youve got all the computers and wiring for it. dont even know if the BA head will fit on EA-AU blocks.
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Old 06-02-2004, 06:22   #3 (permalink)
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Re: which Falcon XR6 4.0

are the airflow sensors the same and wiring harness same wiring/pinouts eb2-au?
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Old 06-03-2004, 01:31   #4 (permalink)
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Re: which Falcon XR6 4.0

none of them have airflow sensors they all have MAP sensors - manifold air pressure, and they are all interchangeable.

if you get an entire AU motor from block to rocker cover you can drop it straight into an EA onwards, if you keep the EA/whatever intake manifolds and stuff, but the drive belts and radiator hoses are different so you have to work something out there.

the pin outs are the same i believe, but some have more than others, depending on if the car has a dizzy or coil packs, and if its sequential fuel injection or group fire.
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Old 06-03-2004, 01:33   #5 (permalink)
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Re: which Falcon XR6 4.0

oh yeah, and in answer to your original question, EB XR6 or ED XR6 are the best bang for buck - they were the lightest and had the best power to weight ratio, plus they are a lot cheaper than the succeding models.

and they look better i reckon :)
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Old 06-03-2004, 01:38   #6 (permalink)
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Re: which Falcon XR6 4.0

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.. and they look better i reckon :)
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Old 06-03-2004, 01:58   #7 (permalink)
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Re: which Falcon XR6 4.0

So the AU motor would be the highest nM/kW engine (except BA)? do they all have same crankshaft sensors & water/air sonsors (same eec4 to 5??)- ie basically if you get a EB2 or ED and plug in EF,L, computer XR6 (EEC5) & maybe a head, what changes?? (besides extra power) )
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Old 06-03-2004, 02:10   #8 (permalink)
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Re: which Falcon XR6 4.0

oooook, this is were it gets complex.

EB2, ED and EL are 60 pin ECUs. EF and AU are 100 pin. The difference being EB ED and EL have a dizzy, EF and AU are coil pack. Forgot using a 60 pin ECU with a coil pack engine and vice versa.

EB2 and ED wiring looms are the same. EL is similar to EB2 and ED. EF and AU are similar to each other.

The pin outs for EB2, ED and EL are the same, just the EL has a few extra pins for thermofans, knock sensor and the BBM manifold.

You can put an EL engine running EEC V into an EB2 or ED using the EB2 or ED loom. You just have to use the EB2/ED lower thermostat housing and lengthen a few wires on the engine loom.

I have an EB2 4.0 with an EL BBM manifold and EL ECU. It runs fine, with the exception of my trip computer, only average speed works on that anymore (well not really, but that's not the ECU's fault).

The only real difference between the E-Series 4.0 engines is the head anyway.

Any more questions, fire away.
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Old 06-03-2004, 03:23   #9 (permalink)
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Re: which Falcon XR6 4.0

Thanks psycho chicken!
are all the xr6 injectors the same flow rate (& HP pump &reg?)
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Old 06-03-2004, 03:33   #10 (permalink)
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Re: which Falcon XR6 4.0

John, the BA head will not go onto the pre BA block.
I wish.
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