I put a 95 amp on the fox. One of the better purchases I made
At the time I didn't have access to air tools to notch the alt bracket so the 3G would fit. The 95 amp will sufficeI would always recommend upgrading to the 3g alternator or better on a Fox.
Kurt
95 slides right in the 130 does notCurious why a 95 and not a 130 amp? That is normally the option people choose.
Gt40, 3.73, triax- the only words required to create a 79-95 mustang forum.Ma
Maybe it's negligible but so is the cost so its worth it either way. Theres literally sh*t tons of mods we all do or have done that are negligible. CAI (in my opinion a negative gain), a degree of timing, air silencer, smog pump, egr delete, ac delete, shorty headers, larger injectors, this list is endless. These mods barely do anything but are still discussed and done. So im trying something new because someone has to, or should we just keep talking about explorer intakes??
Not true. small case 3g and 6g's slide right in and the larger case only need a minor mod on the bracket. You don't need air tools- a dremel, grinder, hacksaw, or drill with a carbide grinding bit will do the job. Well worth the 5 minutes of trimming for a much better unit and larger charging capability.95 slides right in the 130 does not
I would prefer Trickflow,Vortech and Mickey ThompsonGt40, 3.73, triax- the only words required to create a 79-95 mustang forum.
hmm lemme see... T'was a couple years ago but if memory serves( and sometimes it doesn't) I think I just bolted er on in "as is." The 95 amp works pretty well so I'm gonna let er ride for now until eBay releases an alternator promising 20 horse and 30 ft lb of torque.Hoping you at least upgraded and did not reuse the stock power wires.
Ha touché. Mine was the poor man versionI would prefer Trickflow,Vortech and Mickey Thompson
the pulley diameter doesn't make a difference. Does you steering feel different in 2nd gear vs. 3rd gear? The pump is a fixed displacement pump (say, 2.0 gallons per minute) regardless of input speed. Well, to be more accurate, at idle you aren't making the full displacement, but soon after idle (around 1000-1500RPM) you reach full displacement and the pump goes into flow control. After that it's fixed. Adding a bigger pulley means that it takes a few more revs to go into flow control, but lessens the parasitic losses at the high end. Switching to a lower flow pump makes efforts go up, but also makes the rack speed at which you can overcome boost lower (the fluid can't fill the rack fast enough and it "catches"). Not so good.
"Lessens parasitic losses at high end" Thank you, this should be obvious, and you dont need a dyno to figure this out like some have suggested.Regarding pulley size: The problem is, the way the system works, there's not a direct linear relationship between pulley speed and pump output. Once it reaches a certain threshold, that's what it puts out. Slowing the pulley down only raises the threshold speed. The way to tune steering feel is with the rack, specifically the spool valve and the torsion bar, which determine how much assist is given to the steering, and at what steering input force.
edit: Words from an engineer who used to work for one of Ford's hydraulics suppliers:
Sometimes you just gotta have faithWell, without a dyno or consistent drag strip testing there's no way to know if the reduction is significant.
Regarding pulley size: The problem is, the way the system works, there's not a direct linear relationship between pulley speed and pump output. Once it reaches a certain threshold, that's what it puts out. Slowing the pulley down only raises the threshold speed. The way to tune steering feel is with the rack, specifically the spool valve and the torsion bar, which determine how much assist is given to the steering, and at what steering input force.
edit: Words from an engineer who used to work for one of Ford's hydraulics suppliers:
Has anyone had experience running just the PS underdrive, while leaving the crank pulley at stock ? Is there any change in power or steering response ?
It's offered by this company on ebay
http://rover.ebay.com/rover/1/711-5...0001&campid=5335821607&icep_item=221275612448
I'm thinking of giving it a try at the same time as I do an AC delete since I'll be re-sizing the belt already.
Hey Dave not sure you will read this because it’s such an old thread. Do you know what kind of belt you used? The parts still for sale online and he states to use a different belt but doesn’t know what belt to useSo I went ahead and threw the underdrive pulley on. I noticed even though it's bigger it's also a bit lighter which is good to reduce the weight of the pulley system. It works - I think the steering does feel a bit better, beyond that I can't tell if it made any difference. It was really easy to do with the free tool rental from autozone, took like 15. Without the tool it would be impossible and you'd break the power steering pump, that's probably why it's not a standard on pulley kits.
Ok I appreciate the response. Seems like a hassle just to have to install it and get a custom belt.This member has not been around since 2016, he likely will not respond, anyway I would recommend not running an under drive power steering pulley.
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