WARNING: AFTER TRIAL AND ERROR, THE S197 PUMP RELIEVES AT 1,530 PSI. THIS IS MUCH HIGHER THAN THE PREVIOUS SN95 AND FOX STEERING PUMPS. THIS WILL VERY LIKELY CAUSE SEALS TO FAIL ON ANY POWER STEERING RACK YOU TRY. I'M CURRENTLY LOOKING A PRESSURE REDUCTION OPTIONS.
I finished my Coyote Power Steering this weekend, so I figured I’d make a how to.
*Note: The pulley/frame clearance is small. You'll need to use a modular motor mount spacer from Whitby or make your own if you currently are not.
Parts needed:
Coyote Power Steering Pump Bracket – M-8511-M50BR
2005-2009 Ford Mustang GT Power Steering Pump & Pulley
Edelmann 92400 Power Steering Hose
Power Steering Reservoir
AN-6 hose, to length
AN-10 hose, to length,
High Pressure AN-6 hose, to length
(1) High pressure 45 degree AN-6 fitting
(1) High pressure straight AN-6 fitting
(1) AN-6, 45 degree fitting
(1) AN-6, 90 degree fitting
(1) AN-10 straight fitting
(1) hose clamp for AN-10 line
(2) Power Steering Rack O-ring fittings (varies depending on what rack you use).
Misc: Bolts, reservoir mount, zip ties, fluid
Unfortunately, I purchased the hardware a long time ago, but you’ll need 3 bolts to mount the bracket to the block, and 4 bolts to mount the PS pump to the bracket. Install the pump on the bracket prior to installing the outlet fitting. The pump outlet fitting will block a mounting bolt. Once the pump is on the bracket, bolt the bracket to the block.
This photo shows the first outlet fitting I bought, which leaked. But it does show the pump mounted, which is the important part.
Next, you need a reservoir. I chose an All Star performance from Summit:
http://www.summitracing.com/parts/AAF-ALL36126
There are mounts available or fab your own. I mounted mine to the pass side F-panel as shown below.
You want a reservoir with AN-6 inlet, and AN-10 outlet. The power steering pump inlet is sized that an AN-10 line slides right over.
Next you want to measure and build 3 lines.
The first connects the reservoir to the pump. This will be AN-10. Use a straight fitting on one end, and the other if left open. Bolt the fitting to the reservoir bottom and the other slides on the pump inlet with a hose clamp.
The second line is standard AN-6. Use a 90 fitting on one end, and a 45 degree fitting on the other. The 90 degree fitting connects to the reservoir inlet, and the other to the steering rack outlet. You will need to buy a power steering O-ring fitting specific to your rack. I got mine from Breeze.
The third line is the most difficult. This is the pressure line from the pump to the rack. Make sure you use a high pressure line and fittings:
http://www.summitracing.com/parts/rus-632610
http://www.summitracing.com/parts/rus-620411
http://www.summitracing.com/parts/rus-620401
On the rack end, use a 45 degree fitting. This will connect to the O-ring PS fitting specific to your power steering rack. One the other end is where the fun begins. Ford uses a special double O-ring fitting on their pump outlet. One O-ring sits in the pump, and the other is on the fitting. You get both o-rings and the fitting when you buy the Edelmann 92400 power steering hose. I found this after trying a standard PS fitting and then the PS fitting with the O-ring at the head. Both leaked. So I bought the Edelmann line for this fitting:
I took it to a local hydraulic line shop and they cut the hard line and crimped on a fitting with a 3/8” JIC male end. JIC is the steel equivalent of AN. Both use a 37 degree flare. Since the power steering fittings are steel, there is no dissimilar metal contact. Bolt this small piece to the pump outlet and then connect to the high pressure power steering line. Here’s how I routed my lines:
With everything connected, add fluid. Prime the pump by rotating it clockwise. With it primed, add the belt. The pulley is 6 rib, and I found this belt worked:
Gates K060390
Adjust the power steering bracket for tension, and start it up. Use a vacuum pump, or turn side to side until all the air is out and check for leaks. Enjoy the ease of PS.
I've go karted mine for a few miles and so far I like the PS. It doesn't seem twitchy, but I haven't been above 35 mph. If that happens, you can always add a Heidts valve.