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Discussion Starter #1
Hi all,

somewhere here in the forum I have read that someone has used a Spider (4th series?) power steering that has been fitted into a Giulia GT 105.
However, I have found no pictures nor technical details.
Could you please help me in clarifying this point?

Thanks in advance to all of you! 馃崁馃悕

Cheers

Vito
 

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Not much help but I installed an Opel Corsa unit, its electric and works off the ECU for speed control. Think Alfaholics does a unit as well.
 

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joebb from EPAS in florida is making one for me now , its on a jig almost complete . its his first alfa . 941 893 5427 . tell him Al recomended you
. he has a web sight epas
 

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Discussion Starter #6
Not much help but I installed an Opel Corsa unit, its electric and works off the ECU for speed control. Think Alfaholics does a unit as well.
Hi!
Thanks for the hint. Would you willing to share some pictures with us?

Cheers

Vito
 

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Discussion Starter #7
joebb from EPAS in florida is making one for me now , its on a jig almost complete . its his first alfa . 941 893 5427 . tell him Al recomended you
. he has a web sight epas
Hi alfonso,

Thank you very much for your contribute.
I will try to contact him and I will mention you.

Best Regards

Vito
 

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Discussion Starter #8
I put one of these EZ ELECTRIC POWER STEERING in a 102 spider and it works quite well. If you poke around their website you can see conversions to a GT see Alfa Romeo GTA Not cheap!
Thanks!!! It is amazing, they are specialist on this.
I had already sent an email to them. Let's see which is the quote, no clue so far.

I will keep you posted guys.

Thanks a lot.

Vito
 

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How much do you need power steering on the 105 cars? Maybe I am biased but I find with good track rod ends and bushings, the steering is quite light. Especially in comparison to my Porsche 911!
 

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Maybe if owners reduced their tyre size to sensible widths, power steering would not be required. Low grip is fun, and the steering of, at least, my GTV was possibly it's most wonderful feature. I ran 175/65x14"
Pete
 

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I've owned GTVs since 1977 on an almost continuous basis. By the mid 80s, 165R14 tires had almost disappeared from this side of the ocean, and we all started using the fashionable 70 series 185 as a substitute. Later on, the trend moved to 60 series and so on.

About 15 years ago, I drove a friend's very original GTV sitting on a set of ancient 165R14 Pirellis. I had driven my own GTV to his place, and the difference in steering lightness between the two was flabbergasting. I was bitten and wanted 165s on my car. Back then, the GTV I had didn't justify spending $1000 for a set of XAS or else, but I kept looking.

Today his GTV is mine and the ancient Pirellis have long self-destructed. GTV values being what they are, I'm just at the point where splurging $1000 for a set of 165s makes sense. I will get back the real feeling of driving a GTV that attracted me over 40 years ago. Without power steering.

BTW the cheapest way to install PS on a GTV would be to get a complete ZF power steering kit from a dead S4 Spider. And this would rid you of Burman steering box woes. Not my cup of chianti, but worth considering if you absolutely need this.
 

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Interesting Yves. Here there seem to be plenty of 165R14 around for between $100 and $200 each. Vredstein Sprint look decent. I went back to stock size Michelin on my 1968 911 and it transformed the car in handling and agility.
 

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Yup.
Original size steering wheel, reasonably sized tyres (width and aspect ratio), original (or close) wheel offset = fingertip-steering bliss. A bit more effort than powered steering at parking speeds, but turning the wheel only whilst moving relieves most of that problem.
You REALLY should sample one set up like that before making this jump.
Way back when, I had quality 185/65 14s on 5.5鈥 Steelies, original steering wheel. Fingertip Bliss, and Absolutely no shortage of grip on the street.
Recently, 195/55 on 15x6 ET25, sports steering wheel. Not bliss. Looks good tho.
I鈥檒l be going back to narrower/taller.
 

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Discussion Starter #16
How much do you need power steering on the 105 cars? Maybe I am biased but I find with good track rod ends and bushings, the steering is quite light. Especially in comparison to my Porsche 911!
Even for daily use?
 

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Discussion Starter #17
I've owned GTVs since 1977 on an almost continuous basis. By the mid 80s, 165R14 tires had almost disappeared from this side of the ocean, and we all started using the fashionable 70 series 185 as a substitute. Later on, the trend moved to 60 series and so on.

About 15 years ago, I drove a friend's very original GTV sitting on a set of ancient 165R14 Pirellis. I had driven my own GTV to his place, and the difference in steering lightness between the two was flabbergasting. I was bitten and wanted 165s on my car. Back then, the GTV I had didn't justify spending $1000 for a set of XAS or else, but I kept looking.

Today his GTV is mine and the ancient Pirellis have long self-destructed. GTV values being what they are, I'm just at the point where splurging $1000 for a set of 165s makes sense. I will get back the real feeling of driving a GTV that attracted me over 40 years ago. Without power steering.

BTW the cheapest way to install PS on a GTV would be to get a complete ZF power steering kit from a dead S4 Spider. And this would rid you of Burman steering box woes. Not my cup of chianti, but worth considering if you absolutely need this.
Hi!
Thanks for your contribution, I have heard about S4 spider but no clue about how to install it. I was looking for some pictures indeed.
Anyway, the goal is use this GT, with a Twin Spark Engine, daily so I was worried about the steering problem.
I will consider your suggestion and try to reduce tires size. Thanks a lot! :)
 

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Discussion Starter #18
Yup.
Original size steering wheel, reasonably sized tyres (width and aspect ratio), original (or close) wheel offset = fingertip-steering bliss. A bit more effort than powered steering at parking speeds, but turning the wheel only whilst moving relieves most of that problem.
You REALLY should sample one set up like that before making this jump.
Way back when, I had quality 185/65 14s on 5.5鈥 Steelies, original steering wheel. Fingertip Bliss, and Absolutely no shortage of grip on the street.
Recently, 195/55 on 15x6 ET25, sports steering wheel. Not bliss. Looks good tho.
I鈥檒l be going back to narrower/taller.
Yep, 195/55 on 15 ET28 is my goal, that's why I was worried :D
 

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As Ranz said, it's only while parking that you will feel a difference with a decent modern car with power steering - I mean not a mushy luxury sedan with over boosted steering, but a modern driver's car that has some road feel.

To come back to your first question, what is involved in the S4 PS conversion? I haven't done it, but from checking S4 engine bay photos, it would involve hanging the pump on front of the engine, and installing the multi groove pulley on the crank. That won't be pretty. With the Twin Spark, it won't be straightforward either, unless some variation of this engine was fitted with a pump on say a 75. I don't know.

Somebody able to create and machine parts could always design a less intrusive pump installation next to the alternator. Then replacing the steering box should be straightforward, but I suspect the steering column would have to follow from the S4 Spider. This could be an issue as 105\115 columns came in different lengths, and the S4 column will only be appropriate if your GTV is circa 1971 up, originally fitted with the deep dished steering wheel. Hope this helps.

Fitting a set of slim tires will be simpler, but maybe not what you need with power form the twin spark. Hmmmm...
 

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Discussion Starter #20
As Ranz said, it's only while parking that you will feel a difference with a decent modern car with power steering - I mean not a mushy luxury sedan with over boosted steering, but a modern driver's car that has some road feel.

To come back to your first question, what is involved in the S4 PS conversion? I haven't done it, but from checking S4 engine bay photos, it would involve hanging the pump on front of the engine, and installing the multi groove pulley on the crank. That won't be pretty. With the Twin Spark, it won't be straightforward either, unless some variation of this engine was fitted with a pump on say a 75. I don't know.

Somebody able to create and machine parts could always design a less intrusive pump installation next to the alternator. Then replacing the steering box should be straightforward, but I suspect the steering column would have to follow from the S4 Spider. This could be an issue as 105\115 columns came in different lengths, and the S4 column will only be appropriate if your GTV is circa 1971 up, originally fitted with the deep dished steering wheel. Hope this helps.

Fitting a set of slim tires will be simpler, but maybe not what you need with power form the twin spark. Hmmmm...
Thank you for your kind contribution.
Well, if the main difference is only at parking speed, well, I am 32 overall, so, I should be able to handle it :)
Yeah, you got the point. Mounting more slim tires considering a finely tuned Twin Spark with more than 200 HP, yes, might represent a problem indeed...
 
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