Going to have a Boss 302R EAS installed - Ford Mustang Forum
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post #1 of 20 (permalink) Old 03-29-2016 Thread Starter
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Going to have a Boss 302R EAS installed

I have had it with high speed front end vibration with no solutions.
My car is lowered, has bump steer and stiffened bushings.

Typically, I don't like throwing parts at something that may not be needed, but there have been those times in the last 42 years where nothing else will work but to throw parts at the problems. This one of those cases and solely my own idea.
Therefore, I put a deposit down at a local shop (SC Racing) to order and have them install a Boss 302R EAS.

My current thinking is that there is only one steering mode not three like I have now in my 2012 Shelby GTS. I also wonder about any DSC error codes that may pop up.

I have researched this Boss 302R EAS on the net, and I cannot find much on it for retrofitting on a 2012 GTs, so I am guessing this is a bit avante garde. Well, off into the Great Unknown or maybe The Abyss.
I'll find out in a couple weeks.

BTW, I am going to save the old GT EAS in case we need to revert back.

Thoughts?


2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #2 of 20 (permalink) Old 03-30-2016
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Do you mean stiffened A-arm bushings? If so, that might be the reason for the issues you are having. You can search EPAS instead of EAS and find more information.

https://www.allfordmustangs.com/forum...-bushings.html

https://www.allfordmustangs.com/forum...eel-shake.html

Seems like you are going the same route as this guy below.

https://www.allfordmustangs.com/forum...ixed-mine.html


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post #3 of 20 (permalink) Old 03-30-2016 Thread Starter
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EPAS not EAS. That certainly makes a difference when searching.

The vibration I have is both steering wheel and vibration throughout the car over 80MPH. It's quite annoying.
I have 255s on the front as well as lowered and with a Drake bump steer unit.

My Goodyears have been replaced with a new set as of last year and I still have the problem. I have tried 4 different balances from 4 different shops, have had the dealer and 2 other shops look at the front end and no one sees any problems. They have been road forced and everything is round and the run out good.

My steering wheel bobbles slightly, though not radically and both the steering wheel and body shakes/vibrates horribly over 80MPH.

In reading the links you posted (thank you), it appears that some say a 13/14 rack might make a difference, or the Ford Racing one as well.

I am going to try the Ford Racing one but mine is not a 2011. I may lose the 2012 3 choices of steering wheel feel, but that would be OK.

SC Racing thinks I might be on the right track and the guy said he knows Terry at Vorshlag and may call him if we run into problems like error codes etc.

I am going to give it a try as I have no where to turn at this point. It may end up doing nothing, I don't know.
It also may be that once installed, I may have turn the DSC off, which I could live with because the car is very stable with the setup I have.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #4 of 20 (permalink) Old 03-31-2016
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Stupid question, but did you put new wheels on and not remove the brake disc mounting gizmos? Those little clips that hold them on during the manufacturing process?

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post #5 of 20 (permalink) Old 04-02-2016 Thread Starter
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I did look for those the last time the wheels were off and did not see them.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #6 of 20 (permalink) Old 04-02-2016
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Originally Posted by IceBlue View Post
I did look for those the last time the wheels were off and did not see them.

Oh they are there and can be easily missed. If they are let me tell yah it will feel like your wheel is missing a lug nut it vibrates pretty good.

I still have some shake since installing my AMR's about a year ago, but not terrible. Just sakes at certain speeds and not all the time at those same speeds either. Very weird.

Back to the point make sure the clips are off or you will have shake no matter what you do.

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post #7 of 20 (permalink) Old 04-02-2016 Thread Starter
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I didn't used to have shake after the mods from SAI 4 years ago.

This began slowly a couple of years ago.

I assume SAI removed the clips when they put the Wilwoods on.
I will check again when we go to install of the EPAS.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #8 of 20 (permalink) Old 04-02-2016 Thread Starter
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I also kind of want to figure this out.

I only have about 3 years of owning this car and want it all set up properly for my brother.

I am terminal, and he has agreed to buy the car after after I'm gone. It'll help out the wife.
I don't want this sitting in the garage and reminding her of me daily.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #9 of 20 (permalink) Old 04-02-2016 Thread Starter
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I went out for a ride just now and if I turn off the DSC, things are a lot better by about 60%.

The problem with that is if I am already on the move, I need to stop to turn the DSC off.
It also locks the steering in Sport mode (I think). It said locked but the steering was already in sport mode.

If I have the steering in Sport with DSC engaged, here comes the high speed vibration again.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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Going to have a Boss 302R EAS installed

Ice, I am saddened and sorry to hear this about your health.


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post #11 of 20 (permalink) Old 04-04-2016 Thread Starter
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Thanks, not much can be done about it.
I do have about 3 years left though and if not for the accidental discovery, I would have been dead by Christmas.
Most of us do not have the luxury of writing our last chapter.

I am retiring sometime late this summer. If interested, you can read my open letter press release here:
https://www.facebook.com/coloradocrushfootball

I need to call the shop today and see when the new EPAS unit comes in.
Plus, it will be 70 degrees here today with no wind, a perfect day for the Mustang.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #12 of 20 (permalink) Old 04-04-2016 Thread Starter
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And it was a perfect day for a ride... with the Advancetrac completely shut off, vibration levels were tolerable, which I can't say when turned on. This makes no sense to me.
The EPAS unit has not shipped yet.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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Iceblue, I installed the Boss 302r epas along with the Boss 302s control arms. I believe it is exactly the same unit with all the nannies turned off. It has a good on center feel. Like a hydraulic rack but with a smoother assist. I think it should solve your vibration problems and you'll like the feel. Good luck to you.
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post #14 of 20 (permalink) Old 05-05-2016 Thread Starter
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Thanks, I am hoping it works out.

The part is in and I am scheduled for install next week.
I worry about it throwing error codes. I get that it would work in a 2011 but these 12's have the 3 mode power steering.

I am not sure what is going to happen and it seems a bit of uncharted territory.

2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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post #15 of 20 (permalink) Old 05-10-2016 Thread Starter
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I dropped the Mustang off this morning.

They tell me they talked with some racing group who apparently has this to post 2011 Mustangs and there is a work around for reprogramming the steering to be compatible with the Boss EPAS.

We will see, I should have it back today or early tomorrow.


2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.


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