Supercharger ID help

[John's truck]

Looking to figure out what my buddy has. It’s old charger from an 04/05 RXP he parted out (dropped a valve). It’s in a 215 housing bored out to 140mm (and epoxied since it went out the side). Inducer is JUST barely too big to fit through a 255 compressor housing. It’s stock height though, no spacer. And it has obvious balancing divots on its perimeter.

Sounds like it was paired up with a Riva ECU and 50’s and ran 83-84 or so.

I was thinking it might be a Les Cooke B kit, but from the pictures I’ve seen, those had curved blades. I really cant find any good examples of the OLD Riva wheels, R&D, or Rude.

[ptscon]

Can't help IDing that but man thats some shitty casting to require that much balancing.

[John's truck]

Yeah I don’t know how you machine aluminum in circle and then have to clip off 6-7 chunks to balance it