March PS pump & Hydroboost, Must Read

[John S]

I thought I would share this with everyone in case you are thinking of running this setup;
I found out too late that the March power steering pump is not compatible with a Hydroboost. It seems that the March pump has 40% less fluid capacity and is unvented which causes pressure to build up and steadily apply the brakes on its own.
Not wanting to remove the pump and install a standard Saginaw P style pump, Paul from Hydrathech gave me a few ideas on how to solve the issue.
What I ended up doing was to drill and tap a 1/2" npt hole in the filler neck of the pump and installed a 1/2" x -10 an fitting. I then installed an ARTS aluminum reservoir on the inside panel of my fender and ran a -10 braided hose to the filler neck.
Simple fix and now everything works great.

here is an image of the fitting into the pump neck;


And here is the reservoir, of course I polished it