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Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Remote power steering reservoir with two return inlets. Custom aluminum brackets for PS reservoir and coolant expansion tank. New and old PS coolers. Tripled the size and volume for better heat control.
I upgraded my power steering/hydroboost system with a remote reservoir with dual returns and larger cooler. I was having issues with decreasing power assist as heat built up and the hydroboost was not releasing properly due to back pressure from a teed return to the reservoir. I haven’t tested it on the track yet, so I will update with results in the future.
That came out good. I did something similar w my power resi. It starts to get really cramped under the hood of these cars really quick. I did the same thing for my wiper fluid resi as well.
where'd you mount the cooler? My trans am didn't have a bunch of good options after the IC was put in.
Last edited by Firechicken82; Aug 10, 2025 at 01:59 PM.
I used the Holley reservoir, it’s also a nice piece with dual returns.
I also looked at the Holley reservoir, but went with the PSC unit because it is larger (more volume) and has a larger vent. I found that the Hydoboost does not like any pressure in the reservoir above atmospheric. The PSC reservoir also has a filter on the primary return to diminish any foaming.
Those brackets came out really nice.
Thanks, they were a PITA because the OEM tank pads are all at different angles so nothing is square and for someone with OCD it was a lot of math to figure them out.
