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EZ Power Steering

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wayne walsh
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EZ Power Steering

Postby wayne walsh » 15 Jan 2013 09:19

Anyone fitted this system?

How is it ?

http://www.ezpowersteering.nl/type/26/143/TR_7.html

5.0 litre TVR Powered

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dycecooper
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Postby dycecooper » 15 Jan 2013 20:35

I enquirer about it but ended up fitting a Corsa Column

FastG
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Postby FastG » 15 Jan 2013 21:19

dycecooper, did you already have a power steering rack, if so did your de-power it or swap to a non-power rack.

Graham

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DNK
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Postby DNK » 15 Jan 2013 23:58

you use a non power
I plan on fitting one myself
Different company
Then one day figure a way to run it thru a computer

Don
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Postby Cobber » 16 Jan 2013 00:58

<font size="2"><font face="Comic Sans MS">I've been giving thought to the possibility of using the electric power steering from a MGF as I happen to have a spare set up.</font id="Comic Sans MS"></font id="size2">



"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

80'Triumph TR7, 73'Land Rover (Ford 351. V8),
'89 Ford Fairlane
'98 MG-F, 69'Ford F250.
76' Ford F100

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Postby Sautie » 16 Jan 2013 12:44

Don't,
I recently had a new Subaru Legacy as a courtesy car while my Subaru was in for service. The whole car was fly by wire, steering, brakes etc after over 50 years of driving all over the world I have never been so apprehensive while driving a car. Absolutely no feed back from the road. My 8 has PS no problem. Incidentally late lat year we fitted a needle roller bearing kit to my daughters TR7 & she is overjoyed exclaiming that he feels like PS.

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Postby Hasbeen » 16 Jan 2013 13:36

What ever you do, don't even think about the electric thing in my S2000. The only thing I don't love about the Honda is the too light, too quick, no feed back steering.

Hasbeen

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Postby FI Spyder » 16 Jan 2013 14:12

Back in the 60's GM power steering had no feedback and very light, same for brakes. Very difficult to drive on icy roads. Ford was better. My '71 AMC Javelin had Ford PS and PB. Much better driving up to Edmonton from Calgary during snow storms were every few miles you'd see cars in the ditch whereas the Jav never wavered. My '91 Integra has variable PS and when I drove a customers (new then) 2006 Subaru Legacy there was no comparison, it had no feed back and not nice to drive. It would be nice to have assist on the Spider in parking lots but I like it the way it is when moving (needle bearings). Given the choice between too light PS and non PS I'll go for non PS. There really should be a potentiometer to adjust the feedback, it can't be that hard but then the general motoring public would not know what it's for.


- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT
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Postby DNK » 16 Jan 2013 14:48

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">[i]...There really should be a potentiometer to adjust the feedback, it can't be that hard...<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

There is

Don
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Dan B
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Postby Dan B » 16 Jan 2013 18:43

Don,

What system are YOU using?

Thanks,

Dan

Hugh
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Postby Hugh » 16 Jan 2013 19:17

Wayne,

I am in the middle of fitting a Corsa power steering system to my car, I have modified the top end so that it is still TR7.

It's taken a bit of time to measure everything up, but the amount of machining is minimal, most of the work was measuring up how and where to machine the parts.

There is still some welding up to do.

I have looked at the possibility of reducing the assistance below that of the control provided by the eBay boxes, but not concluded anything yet.

dycecooper kept the Corsa switchgear in his car which makes the mechanical part of the job simpler, he also reports that the eBay system is pretty good.

I have been caught up with other stuff recently, but will post up some pics of what the parts and the mock up looks like shortly.

Cheers

Hugh

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Postby kstrutt1 » 16 Jan 2013 19:35

I am thinking of doing the same, my thought was to have a on off switch for the electric system as it would only be used for parking.

How are you planning to do the lower column?

The corsa uses a pulsewidth to determine the level of assist, I can't imagine for someone who understands electronics it would be to difficult to take a speed signal from a hall effect sensor on the prop and use this to generate a signal to drive the power assist.

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Postby Bendder » 17 Jan 2013 00:57

After reading the articles on their web page it looks as though there is and will always be a mechanical conection to the rack so this is not a fly by wire type system at all. They do have a potentiometer to adjust the amount of assist, so it would seem if you want more feel (closer to the original no power) you just leave it turned down. If power to the motor fails it is clutched so it simply steers as it did before. If it fails, it steers as before. If you really want it to be the way it is as original it would seem you could just turn it on to park one handed and turn it OFF for the twisty bits you like so much just as the car was with it`s original steering. They also make mention of it being speed proportionate via a sensor located on the dive line leading to the speedometer, which as stated could be fine tuned by using the aformentioned potentiometer. Very interest system. Simply being able to turn it off realy does negate any concearns of the -but it won`t be like before- worries And if you want to park and hold that big gulp coffee in hand without spilling it you can with a flip of the switch.

Like I said. Interesting.



Mark

1978 TR7 FHC

Hasbeen
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Postby Hasbeen » 17 Jan 2013 02:20

I have to say that there is some talking at cross purposes here. Some are equating feel, or feed back, with weight.

They are 2 entirely different things.

The Peugeot 306 I had for a short while had the weight thing down to a "T". For something with power steering, it was rather good.

Not only light as a feather at parking speed, it became heavier with speed, all the while not being so direct that it was too quick. It also eliminated torque steer or at least the manifestation of it at the steering wheel. With out doubt, one of the best, safest & most pleasant I have driven.

However it did not have feel/feedback, none at all.

The feel, feed back that we talk about with good systems is the change in feel [or pressure to turn] of the wheel as we start to loose adhesion. With a really good system we can tell which end is starting to let go, & make a very slight correction, before it happens, actually preventing it.

In Oz we had a one make series using the MG F I think it was. With no steering feed back, by the time most drivers felt the tail let go, it was almost past saving. They would over correct drastically, causing the thing to switch back, & spin in the opposite direction, leading to a few roll overs.

If the things had natural steering many of these drivers would have felt this loss of adhesion through the steering wheel, & corrected for it sooner, preventing a big loose, without ever knowing how they knew it was happening.

If you want your 7 to be a really nice cruiser, I can see the attraction of power steering. If however you want a really quick car through the mountain twisty bits, & will drive it hard, you will be much quicker & safer with the full feed back in place, even if you aren't consciously aware of how you are using it to stay in front of the car.

Hasbeen

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Postby Cobber » 17 Jan 2013 03:01

<font size="2"><font face="Comic Sans MS">The idea of using electric power steering is that the original steering rack, geometry etc is retained so the feel and feedback should be the same as before as assistance would only be used at parking speeds.</font id="Comic Sans MS"></font id="size2">



"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

80'Triumph TR7, 73'Land Rover (Ford 351. V8),
'89 Ford Fairlane
'98 MG-F, 69'Ford F250.
76' Ford F100

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