Steering, Suspension, & Brakes

tips, technology, tools and techniques related to non-driveline mechanical components

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DiDueColpi
Fred Key
West coast - Canada
(1210 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: Electric power rack steering
Posted by: DiDueColpi
Date: August 27, 2015 02:33PM

Just finished an install into a Volvo p1800.
It transformed the car! Was a complete bear to drive at low speeds and during parking.
Now it's a pleasure to drive. Couldn't be happier.
Should have taken pictures during the modification but didn't have my camera here yesterday.
Remote mounted the control unit and flipped the assist unit upside down so that the pedals had max clearance.
Took an afternoon including some time on the lathe.
Will definitely do it again.
IMGP9618.JPG
Fit well into a car with no room.
IMGP9619.JPG
Cheers
Fred


Dan B
Dan Blackwood
South Charleston, WV
(890 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: Electric power rack steering
Posted by: Dan B
Date: August 27, 2015 02:51PM

Fred, what did the EPS unit come out of?


DiDueColpi
Fred Key
West coast - Canada
(1210 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: Electric power rack steering
Posted by: DiDueColpi
Date: August 27, 2015 03:08PM

05 Equinox


mgb260
Jim Nichols
Sequim,WA
(1751 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Electric power rack steering
Posted by: mgb260
Date: August 28, 2015 02:23AM

Fred, Very well done!


b6281t
Robert Stolt
Glenwood City, WI
(15 posts)

Registered:
03/01/2015 10:39AM

Main British Car:
77 MGB 2008 GM 3800 with T5

Re: Electric power rack steering
Posted by: b6281t
Date: November 15, 2015 11:11PM

Any news on the VSS controller?


Capt'n Moorgone
Mike Moor
Angola,IN
(104 posts)

Registered:
11/20/2008 07:05PM

Main British Car:
1973 MGB 300 Buick

authors avatar
Re: Electric power rack steering
Posted by: Capt'n Moorgone
Date: November 16, 2015 05:57PM

I haven't seen anything yet. I have about 5000 miles on mine this summer. You get used to it pretty quickly. The VSS could help the over 45 mph cruising. Definitely need to be careful in the early cars with the quicker rack ratio. I still get a smile on my face when driving!


63BlueMGB
Nick B
Kansas City, Mo.
(91 posts)

Registered:
01/16/2011 05:17PM

Main British Car:
1963 MGB

authors avatar
Re: Electric power rack steering
Posted by: 63BlueMGB
Date: November 20, 2015 02:14AM

Anyone that is wanting to try this conversion, I have two power steering unit listed in the classifieds., Sorry, Items are no longer available



Edited 1 time(s). Last edit at 08/20/2016 10:45PM by 63BlueMGB.



zapskate
Conner Westra

(2 posts)

Registered:
08/19/2016 07:25PM

Main British Car:


Re: Electric power rack steering
Posted by: zapskate
Date: August 19, 2016 07:37PM

What controller are you guys using? Looking to do the Saturn vue to mgb swap


TR6-6SPD
Ken Hiebert
Toronto Ontario
(231 posts)

Registered:
04/23/2008 11:43AM

Main British Car:
1972 TR6 1994 5.7 L GM LT1

authors avatar
Re: Electric power rack steering
Posted by: TR6-6SPD
Date: August 22, 2016 09:26AM

Conner,
As posted elsewhere:
[www.ebay.ca]
Ken


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5284 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Electric power rack steering
Posted by: BlownMGB-V8
Date: August 22, 2016 10:10AM

What exactly does the Bruno box do?
It has a pot, it has power. Does it do any more than just send a variable voltage?

Jim


MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Electric power rack steering
Posted by: MGBV8
Date: August 22, 2016 10:53AM

Quote:
The controller processes the steering effort and hand wheel position through a series of algorithms for assist and return to produce the proper amount of polarity and current to the motor.

[www.knowyourparts.com]


MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Electric power rack steering
Posted by: MGBV8
Date: August 22, 2016 10:54AM

HIWD on a V8 RX7.

[www.driftworks.com]


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5284 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Electric power rack steering
Posted by: BlownMGB-V8
Date: August 22, 2016 01:20PM

So a pot and a chip, but we don't know what the chip outputs to the controller. Could be a complex waveform, could be a reference voltage. Or anything in between.

Jim


MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Electric power rack steering
Posted by: MGBV8
Date: August 22, 2016 10:15PM

Well, if it's running algorithms, it's kinda hard to build it unless you can copy & burn PROMs.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5284 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Electric power rack steering
Posted by: BlownMGB-V8
Date: August 23, 2016 10:29AM

Too bad somebody hasn't been able to put a scope on the output yet. There are just two wires going to the controller. Two wires from the pot to the Bruno, a hot wire and a ground. The Bruno was described as, "having a small chip" (which these days might not mean much).

I have a bit more than an academic interest. On my bench is sitting an electric power steering pump which I thought could be a good portable source of hydraulic power, like maybe for a tubing bender or something. But it also has inputs for control. Interestingly enough the built-in controller takes DC and creates a 3-phase current to power the motor so just wiring it direct would not work. Probably a waste of time and money to mess with it and I may end up throwing it away but I was curious enough to pick it up at the junkyard, and to take it apart.

Jim



MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Electric power rack steering
Posted by: MGBV8
Date: November 22, 2016 11:31AM

Lots of great info on EPS/EPAS. Backs up Fred Key on not needing the Bruno module.

[www.forabodiesonly.com]



Edited 1 time(s). Last edit at 11/22/2016 07:01PM by MGBV8.


Scott68B
Scott Costanzo
Columbus, Ohio
(489 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: Electric power rack steering
Posted by: Scott68B
Date: November 22, 2016 01:23PM

Sh!t, I'm running out of excuses for putting this off!

Great info Carl! Are you considering it?


Capt'n Moorgone
Mike Moor
Angola,IN
(104 posts)

Registered:
11/20/2008 07:05PM

Main British Car:
1973 MGB 300 Buick

authors avatar
Re: Electric power rack steering
Posted by: Capt'n Moorgone
Date: November 22, 2016 06:23PM

Great info Carl!! Thanks for finding and sharing. Looks like no more excuses not to transform your driving experience! It'll make you faster through the Mountains!


MGBV8
Carl Floyd
Kingsport, TN
(3181 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Electric power rack steering
Posted by: MGBV8
Date: November 22, 2016 07:03PM

They were discussing it over on the main MG Experience. Someone linked that page. I was amazed at all the info there. Figured it need to be here, as well. ;)


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5284 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Electric power rack steering
Posted by: BlownMGB-V8
Date: November 23, 2016 10:46AM

That could work out really good. I've been driving the RM with the Bruno dial set in various positions and have just about settled on 3/8 as being the best setting. 1/2 is also good. So if those other units in limp mode run at about 1/2 it should be a good set up. Although you CAN vary the setting for different driving conditions, in a very practical sense it is best to find one setting that will work acceptably well for all conditions and just leave it there, and that is exactly what most drivers will do.

I had not noticed the lack of centering but next time I drive the car I will check it out. Considering the light weight of the car, one of the two smaller units should work well, hard to say yet which might be the better choice. But few new cars are in the 2100-2500 lb weight range, or even sub 2700 lb. That should be a consideration when selecting a unit, as should steering rack ratio or turns lock-to-lock. Perhaps the turns should be a divisor of the weight in making a comparison. That would give us some real numbers that we could use.

Jim
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