Re: Underdrive Pullies Solution
Alternator pulley is definately the same size.
If operating temperature gets to be an issue, i'll put a colder thermostat in it.
Have not ever seen a kit advertised for the explorer motor, which is probably the easiest way to fit the falcon.
You asked me about bpt pulleys, i know they use 'asp - auto specialty products' pulleys, probably just importing them, giving you the crank pulley and ditching the rest. There are some places in the states that'll sell you just the crank pulley much cheaper too.
I did run just the underdriven crank pulley first off, but the belt was a fraction too long with this setup, and would squeal sometimes (not enough tension), once the matching water pump pulley was installed, the original belt fits like a charm again.
EF XR8 Manual
Mods: Polished GT40 intake/Engine cover, FMS Phenolic spacer, 65mm FMS T/B, 70mm MAF, Underdrive pullies, Crane 1.7 rr's, genie extractors, TV/In car computer/DVD