I personally highly recommend Mazda 10-12 pumps
Slightly faster reaction time to changes, and i'd say quite more reliable than previous gen & volvos.
Several other benefits of Mazda pumps over volvo:
- Cost. Since mazda pumps require canbus messages to run at all, unlike volvo limp mode, no one buys them. You can pick one up for $50 at a junkyard.
- Remote reservoir. Volvos just have one built in reservoir, making their mounting positions more difficult. Where as mazdas OEM, have a small line leading to a remote reservoir.
- Seem to last longer due to better internal cooling, but could always benefit from an external cooler if constantly going sideways.
Here is the mazda pump mounted in an LQ4 swapped s13:
https://photos.app.goo.gl/pMRsttc1s1PKhFFr8
Just in case anyone asks, the PSC controller supports any input you'd like. For remote control you can do PWM input, CAN 0-100, Frequency input.
For standalone mode, you can use a HALL/VR sensor, Potentiometer, your phone, CAN VSS.
Demo of the UI and features:
https://psc-demo.nmstec.ca/
Note, saw pings from this website to mine, figured i'd see whats going on! Most forums frown on advertisements, however I can't find any in TOS regarding that, so just in case, bought a subscription to the website!