New Edge rack in a Fox

[1BAD92LX]

So I will be installing a GT/Mach 1 rack and MM hybrid steering shaft in my Fox over the winter.
Is there a need/any point in changing the power steering pump pulley size?
Was thinking of putting a larger pulley on from a 99-04 V6 to slow down the pump.
Good idea or bad?

[ZR]

Inner tie rods on the newer cars are metric + longer

[1BAD92LX]

I’m going to transfer my inners and bump steer kit over to the other rack

[ChickenLips]

I've seen lengthy discussions on swapping to a Saginaw style pump over on road race forums. Apparently the stock Mustang pump tends to puke fluid when worked hard on the track. I know some older Windsor equipped Econolines had factory Saginaw pumps. Years ago I salvaged braackets off one in a yard. They went into the deep dark recesses of my shop and I haven't seen them in a while... No 1st hand experience with the Saginaw swap. I also recall seeing some California outfit making steel brackets for a Saginaw onto a Windsor. That was for a 4WD off road application. I'm not even sure if the appropriate Saginaw is still available. I'm swapping to a KRC.

[1BAD92LX]

Fluid definitely comes out the top when the fluid is hot. I zip tie a rag over the top of the reservoir on track days.
If it was more race car would do a KRC pump for sure.
Currently working a way to extend the reservoir housing to hold more fluid.

[1BAD92LX]

Any thoughts on the larger pump pulley? Or would it even make a difference?

[ZR]

Only need to slow it down if your over spinning it's optimum RPM.
Extension on the reservoir as you previously looked into seems like a solid fix.
Even Cobra / Ross's with external reservoirs tend to leak at least a bit on the track, quickie diaper made outta a rag n all is well.

[ChickenLips]

Fluid definitely comes out the top when the fluid is hot. I zip tie a rag over the top of the reservoir on track days.
If it was more race car would do a KRC pump for sure.
Currently working a way to extend the reservoir housing to hold more fluid.

Older Escorts had an extension piece on the pump. I've also seen a simple piece of hose clamped in place to extend the neck. As to a larger pulley. My opinion is that will give low speed parking lot grief with little difference at higher engine speeds. I have no experience to base this opinion on.

[1BAD92LX]

The factory extension pieces are very hard to find, been looking for awhile.
I'm starting to agree that the larger pulley size wont matter.

[ChickenLips]

pretty extensive discussion on racks, pumps, pullies etc here:

http://www.corner-carvers.com/forums/showthread.php?t=14991

thread title: Mustang Steering Rack Effort.

If you're interested in converting to Saginaw I'd be down to have brackets made locally and split costs. I have a talented backyard machinist friend near by. I have 2 cars, only one is getting the KRC pimping.

[ON BOOST]

I had big problem boiling my power steering fluid. I ended up running a decent size cooler and good fluid and it's been perfect. I was running stock size crank pulley but have switched to 20% underdrive and I can't say I've noticed any difference in steering fluid temps. So basically screw the bigger pulley and and just run a nice cooler.

Also, I have a GM power steering so maybe my results don't apply lol

[1BAD92LX]

Do you have a pic of your cooler set up? What p/s fluid do you use?

[ON BOOST]

Do you have a pic of your cooler set up? What p/s fluid do you use?

I do not, It's basically just a decent size transmission cooler mounted in front of the rad. Fluid is redline full synthetic

[ZR]

Cured boiling ps / hydro boost fluid a couple times in the Cobra by simply flushing and filling with ps fluid (not trans fluid). Car came from the factory with a cooler. Rebuilder I've dealt with since the beginning of time swears to use trans fluid if it has a box, ps fluid if it's a rack. He was also a racer.

[RedSN]

^^have some new PS lines to install on mine, will do a flush at that time. Any reco’s for PS fluid brand?

[1BAD92LX]

I ran generic CarQuest brand p/s fluid last track day at TMP. Seemed ok. Plus its only $6 a liter. Took a good 3L to flush out all the old stuff.

[98 Snake]

I use mopar atf+4 in my car with no issues.
I would run the rack the way it is now and see how it feels before swapping pullies, it’s also common to trim down the pressure relief spring to lessen the amount of assist

[ZR]

^^have some new PS lines to install on mine, will do a flush at that time. Any reco’s for PS fluid brand?

Just needs to be ps only.

[Zippy]

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[ZR]

^Smokin hawt deal Brad.


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[1BAD92LX]

Thanks for the heads up. Facebook ad replied to.

[ZR]

Got your parts picked up Brad, congrats.

[Zippy]

I'll be sending you a bill for my finders fee.
:highfive:
jk jk, congrats man.