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Re: SSL verses Rutherford? [Re: Redfate] #550964
31/12/18 02:36 AM
31/12/18 02:36 AM
Joined: Sep 2009
Posts: 5,533
Köln Germany
Heinz Offline
Charter Member
Heinz  Offline
Charter Member

Joined: Sep 2009
Posts: 5,533
Köln Germany
I have no experience with the SSL kit but here we have a lot of satisfied users. On my 2014 4/4 I have changed the dampers with AVO ones all around which are adjustable. And I have 140 pound springs of Mulfab in the front as well as the 4 seater 4 leaf springs in the back. The new rear leaf springs was the latest change in September of this year. Therefore I can report which single change has which effect.
It depends what you want, I can say that this final setup is very good and enjoyable. Especially the rear leaf springs allow to set the rear dampers softer and the result is a good match. With the original much too soft leaf springs she bottomed out at each railway crossing and consequently I hardend the dampers. That was a bad compromise because a damper has not the function of a spring. Now, with the stiffer leaf springs she rides softer but much more controlled and without bottoming because I can afford to set the damper softer.
A side effect is, that the braking is much more effective and the car feels very secure. Another very enjoyable side effect is, that with the stiffer leaf springs you have an immediate acceleration feel when throttling. And the cardan will not touch the floor any longer under hard acceleration in first gear when your tank is full and you drive with a passanger.

Both positive effects are caused by the stiffer leaf spring. A too soft spring as the OEM Morgan one is has the ability to warp. It becomes an S. Thus the energy of the acceleration does not feed directly the wheels, but this energy is consumed first by deforming the springs. Thus the indirect time-delayed feeling when acceleration is wanted.

To summarize, my investments were not too high. Regardless if you want to invest in SSL front system (which I personally would not do so far), it is very important to have the rear optimized in any case. As I prefer the more classic and rustical route. And the fpur leaf 4 seater springs are way cheaper than a 5 link rear axle.


'14 4/4 graphite grey
Re: SSL verses Rutherford? [Re: Redfate] #550980
31/12/18 10:14 AM
31/12/18 10:14 AM
Joined: Jan 2018
Posts: 203
London England
Redfate Offline OP
L - Learner Plates On
Redfate  Offline OP
L - Learner Plates On

Joined: Jan 2018
Posts: 203
London England
Hi guys,
The one thing that seems glaringly obvious from all this advice is that any change will be an improvement over the stock set up :-)
And all of you that have changed something have been very happy with the results.
I find that very reassuring, as it looks like I won't make a mistake and buy a poor set up which ever I choose.
Worse case scenario, if I end up not buying the best one, is it will still be big improvement by the sounds of it :-)
Also I now know I can find a way to stop the clattering for sure :-)
Thank you all,
Paul


Paul

2009 4/4 Sport in Red
2016 Harley Davidson Road Glide Ultra
1976 Honda Goldwing GL1000
Re: SSL verses Rutherford? [Re: Redfate] #550990
31/12/18 12:10 PM
31/12/18 12:10 PM
Joined: Apr 2017
Posts: 1,225
Staffordshire
IvorMog Offline
Has a lot to Say!
IvorMog  Offline
Has a lot to Say!

Joined: Apr 2017
Posts: 1,225
Staffordshire
I researched this long and hard before I bought and in the end went for the SSL and fitted it myself.

To get the optimum set up on the "Rutherford" setup or similar fixed spring methods you have to make sure you have exactly the correct length springs to get the correct interaction between the main and rebound just kissing the stub axle whereas with the SSL you can adjust it to get that relationship perfectly setup. Even then there will be some settlement in the first few (500 - 1000) miles and you can readjust with the SSL to get back to the correct setup.

You can't readjust the fixed spring setup without fitting new springs or shimming it and that means stripping it all down again or going back to the dealer.

So adjustability is one big benefit but don't underestimate the effect of the secondary rate riser spring on the SSL. It means you can start with a slightly softer main spring which give a very compliant cruising ride but than stiffens up with more aggressive cornering and absorbs some of the pothole bumps as the rate riser spring comes into play.

And a final benefit for me is that the preload is adjustable so when you are fitting it you don't have to compress all the preload. You can fit it with very little preload and then adjust to suit when everything is in place and fully contained. IMO much easier and safer. ( Although compressing springs is not necessarily unsafe if you do it properly and take the right precautions.)

As a generalisation, you can buy and self fit the SSL for about the same price as a dealer fitted "Rutherford" setup.

But then you also get the satisfaction of having sorted your own front end whilst really understanding how it works and being able to "play" with it in the future.

BTW, when I did fit the SSL it was a huge improvement over the standard setup both in cruising and spirited driving.

Last edited by IvorMog; 31/12/18 12:12 PM.

Bob

1999 4/4 2 litre Zetec
Re: SSL verses Rutherford? [Re: IvorMog] #551001
31/12/18 02:20 PM
31/12/18 02:20 PM
Joined: Sep 2011
Posts: 13,778
Mandello del Lario
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
Member of the Inner Circle

Joined: Sep 2011
Posts: 13,778
Mandello del Lario
I would agree 100% with both Tony and Bob smile


Peter

[Linked Image]
Re: SSL verses Rutherford? [Re: IvorMog] #551003
31/12/18 02:35 PM
31/12/18 02:35 PM
Joined: Apr 2008
Posts: 9,325
Gloucestershire, UK
Hamwich Offline
Needs to Get Out More!
Hamwich  Offline
Needs to Get Out More!

Joined: Apr 2008
Posts: 9,325
Gloucestershire, UK
Originally Posted By IvorMog
I researched this long and hard before I bought and in the end went for the SSL and fitted it myself.

To get the optimum set up on the "Rutherford" setup or similar fixed spring methods you have to make sure you have exactly the correct length springs to get the correct interaction between the main and rebound just kissing the stub axle whereas with the SSL you can adjust it to get that relationship perfectly setup. Even then there will be some settlement in the first few (500 - 1000) miles and you can readjust with the SSL to get back to the correct setup.

You can't readjust the fixed spring setup without fitting new springs or shimming it and that means stripping it all down again or going back to the dealer.

So adjustability is one big benefit but don't underestimate the effect of the secondary rate riser spring on the SSL. It means you can start with a slightly softer main spring which give a very compliant cruising ride but than stiffens up with more aggressive cornering and absorbs some of the pothole bumps as the rate riser spring comes into play.

And a final benefit for me is that the preload is adjustable so when you are fitting it you don't have to compress all the preload. You can fit it with very little preload and then adjust to suit when everything is in place and fully contained. IMO much easier and safer. ( Although compressing springs is not necessarily unsafe if you do it properly and take the right precautions.)

As a generalisation, you can buy and self fit the SSL for about the same price as a dealer fitted "Rutherford" setup.

But then you also get the satisfaction of having sorted your own front end whilst really understanding how it works and being able to "play" with it in the future.

BTW, when I did fit the SSL it was a huge improvement over the standard setup both in cruising and spirited driving.


I fully support everything Bob says. I fitted my SSL setup on April 12th 2013. I needed to adjust it a couple of times in the first 500 miles but since then I've not needed to touch it, it's been perfect.

Wild horses on their bended knees wouldn't persuade me to go back to a stock setup.


Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 1957 R4 CV, 2005 Ferrari Vipar
Re: SSL verses Rutherford? [Re: Redfate] #551008
31/12/18 03:05 PM
31/12/18 03:05 PM
Joined: Sep 2009
Posts: 5,533
Köln Germany
Heinz Offline
Charter Member
Heinz  Offline
Charter Member

Joined: Sep 2009
Posts: 5,533
Köln Germany
IvorMog, that sounds like a very reasonable pro for a try of SSL, not me right now, but everyone who is about to make a decision.


'14 4/4 graphite grey
Re: SSL verses Rutherford? [Re: Redfate] #551051
31/12/18 05:06 PM
31/12/18 05:06 PM
Joined: May 2010
Posts: 7,401
Llanelli
sospan Offline
Talk Morgan Guru
sospan  Offline
Talk Morgan Guru

Joined: May 2010
Posts: 7,401
Llanelli
Interesting comments. For the front, the SSL seems to have good points re set up and post bedding in readjustment. I have read through the fitting and setup instructions and fairly straight forward. Also had a chat with Peter Ballard at Williams open day. I am becoming swayed towards it.


Red Plus8
Re: SSL verses Rutherford? [Re: Redfate] #551058
31/12/18 05:12 PM
31/12/18 05:12 PM
Joined: Jan 2018
Posts: 203
London England
Redfate Offline OP
L - Learner Plates On
Redfate  Offline OP
L - Learner Plates On

Joined: Jan 2018
Posts: 203
London England
Hi IvorMog, that was just the sort of reply I was hoping for, someone who had done it themselves and was happy with the result, Thank you :-)
I love to do things myself when ever possible and hearing from someone who has already suceeded always helps :-)
I've just read Daves thread about fitting his own pannard rod and that sounds worthwhile too.


Paul

2009 4/4 Sport in Red
2016 Harley Davidson Road Glide Ultra
1976 Honda Goldwing GL1000
Re: SSL verses Rutherford? [Re: Redfate] #551092
31/12/18 07:17 PM
31/12/18 07:17 PM
Joined: Sep 2011
Posts: 13,778
Mandello del Lario
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
Member of the Inner Circle

Joined: Sep 2011
Posts: 13,778
Mandello del Lario
Just be aware that a panhard rod will stiffen up the rear suspension a little. It depends very much on your driving style as to whether or not you will notice a benefit. If you tend to corner fairly hard, particularly if you start to feed in throttle as you hit the apex, you will notice an improvement. If you have a more relaxed driving style you probably won't notice any difference.

Just as a little aside a panhard rod, a Watt's linkage, or some other form of lateral control must be used if coil spring suspension, such as the 5 link suspension, is fitted. Leaf springs have an inherent resistance to to lateral movement.


Peter

[Linked Image]
Re: SSL verses Rutherford? [Re: Redfate] #551944
05/01/19 05:46 PM
05/01/19 05:46 PM
Joined: Oct 2017
Posts: 9
Worcestershire
S
series1 Offline
New to Talk Morgan
series1  Offline
New to Talk Morgan
S

Joined: Oct 2017
Posts: 9
Worcestershire
Hi not long purchased a 2014 plus 4 with 2500 on the clock after a run to Yorkshire decided to renew all the suspension after looking around and trying a plus 4 with just the front fitted I decided on SSL front and rear, boy what a difference,the car is now very usable,fitted rear myself easier than i thought ,leaf springs came out easy,on front fitted chrome kingpins,steering now lighter, so very pleased with set up.If any body wants to try mine they are welcome,duncan


duncan series 1 climax, TR +4, plus 4 GDI
SSL F&R suspension
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