Jeff and I have been talking about this. Vane pumps have been an annoyance to every one of us at some point or another. They're occasionally fragile, the hot rod pumps are unreasonably expensive, DIY mods seem to be OK but black magic. I know all of you will say it's fine and whatever, but I know that every single time I put a fresh pump on, my car drives like new. That means it's been cavitating and eating itself and dropping pressure/volume its whole life. I'd love to have a pump that stays happy for longer, and gives better volume for needs.
This is a thing that some rock bouncers have been doing for a year or two, and Scott's Custom Offroad is selling kits for $600+ to put this together.
https://www.facebook.com/scottscustomoffroad/photos/a.675407549257832/1182728208525761/I've got most parts lined up to DIY:
The pump is $100-120.
I've found a couple source for overhung load adaptors, $210-$226 plus Tax/Ship
bolt-on serp pully is around $30 at Summit
Need keyed adaptor for pulley to OHLA, ~$15 for a 1" keyed "go kart drum mounting hub", I expect there are other options to research
The one remaining part to identify is a proper crossover relief, since there's no internal bypass in the pump. Scott is using something by Prince. Northern Hydraulics lists some Cross parts that are about $60. I'm not sure on plumbing if there also needs to be a check valve if that pressure return goes into the pump feed line - which I think it would? or should it be another return to the resi?
Fab OHLA to accessory bracket mount on engine. Just a dumb plate for most. I may do that, or might want to remake the front plate of my Goatbuilt brackets.
Need to verify clearances for pulley size/pump location and plumbing in/out.
Need proper plumbing changes and a proper reservoir, and make sure my line sizes are up to snuff.