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#436855 - 15/03/17 09:36 PM Spax adjustable set-up.
RicHardy Offline
Just Getting Started

Registered: 03/03/13
Posts: 87
Loc: West Mids
I have just had a nice new shiny set of Spax adjustable shocks fitted to my 3-wheeler. Having no experience in setting up adjustable suspension I would be interested in the experience of anyone who has these fitted and how best to go about finding the best set-up for me.

Thanks

Richard
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#436892 - 16/03/17 12:10 AM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
Im glued to this one, mine are in boxes at the moment.
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#436893 - 16/03/17 12:15 AM Re: Spax adjustable set-up. [Re: Draggin]
KenShapiro Offline
Has a lot to Say!

Registered: 31/10/15
Posts: 1432
Loc: Baltimore, Maryland USA
Originally Posted By Draggin
Im glued to this one, mine are in boxes at the moment.


That's the best place for them. They are already adjusted for that application.
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2016 Smith & Stankos Special
10,000 miles.

2014 BMW R9T

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#436906 - 16/03/17 03:02 AM Re: Spax adjustable set-up. [Re: RicHardy]
Inge Offline
L - Learner Plates On

Registered: 30/03/16
Posts: 193
Loc: Minnesota - USA
I recommend any race car suspension book. Shock settings is one of those things that is a large part black art, especially on a 3 wheeler. It depends on what you are looking for on any given conditions. Example , on a rough road, soft is good as the shock will let the suspension rise and fall quickly with the bumps. Or on a smooth road, a stiff setting will give you crisper handling as the car has less tendency to roll and dive with sudden inputs such as turning and braking. Mostly you will need to just try different sittings and see what feels best for your driving style. I recommend starting soft, as did Colin Chapman with his Lotuses.
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Inge
2014 M3W, Black Cherry
1969 Caldwell Formula Ford
TQ Midget
Victory V92C
1" scale steam locomotives

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#436908 - 16/03/17 04:35 AM Re: Spax adjustable set-up. [Re: RicHardy]
greenteagod Offline
Learner Plates Off!

Registered: 18/02/16
Posts: 306
Loc: Round Rock TX
What Inge said, and not so much the commentary from people who think bone stock is perfect and pooh pooh anyone who wants different.

As in any application where you're dealing with coil overs they are adjustable so the driver can tune them to their preference. I also agree with starting them dialed out so they offer the most amount of dampening, then take them in until you feel they're just right. Which is usually found by when they get too harsh and backing them off a bit.

Also it's handy to make note of the adjustments on them, either by measuring distance with calipers or counting full turns, etc. I know some guys who will have a daily driving setting on their coil overs, but then stiffen them up for more vigorous track days. That is part of the benefit of the adjustable shocks.

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#437003 - 16/03/17 01:36 PM Re: Spax adjustable set-up. [Re: RicHardy]
Inge Offline
L - Learner Plates On

Registered: 30/03/16
Posts: 193
Loc: Minnesota - USA
After reviewing GTG's comments, I may have misspoke. My comments on soft vs. hard are based on the assumption that you can change the damping on the shock via a small screw on the side of the shock, or by pushing the rod all the way in and turning it slightly to move an internal valve (ie Carrera). The really old Spax shocks that were on my car had the adjusting screw on the side. Regarding springs, if you want to change the spring rate, you need to change springs. This will give you a softer ride or harder ride. The perch adjustment on a coil over is used to set ride height, and weight distribution on a 4 wheel car. You will not change the weight distribution on a 3 wheel car. The spring rate is constant no matter where you set the perch. If you screw the perch up tighter it simply raises the car, it does not compress the spring further to give a harder ride.
The soft vs. hard damping and soft vs. hard spring rate are 2 different animals, but work together to give different handling characteristics and grip for a given road condition.


Edited by Inge (16/03/17 01:40 PM)
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2014 M3W, Black Cherry
1969 Caldwell Formula Ford
TQ Midget
Victory V92C
1" scale steam locomotives

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#437038 - 16/03/17 04:46 PM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
Inge right on all counts, the spax adjustibles have a ride height adjustment, and a knob for adjusting the amount of damping.
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#437085 - 16/03/17 07:50 PM Re: Spax adjustable set-up. [Re: RicHardy]
RJW Offline

L - Learner Plates On

Registered: 17/10/12
Posts: 156
Loc: Somerset
May be a daft question but which way does the spax adjustment work, Is it screw in clockwise for a firmer ride or screw in anti clockwise for this effect? Just wondering where to start.

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#437088 - 16/03/17 08:15 PM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
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2016 M3W John A Prestwich Special

1968 Honda CL175,and 2012 Enfield for sale







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#437090 - 16/03/17 08:18 PM Re: Spax adjustable set-up. [Re: RicHardy]
Dr.T Offline
Just Getting Started

Registered: 27/12/15
Posts: 40
Loc: Norway
Am I wrong in believing that all these Aero sport items(dampers exhaust etc.) can be ordered and installed on the car from the factory? Or are they aftermarket parts, to be installed by the dealers?

A morgan dealer/shop should be able to provide the base-line settings if they are not already set in the box.

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#437111 - 16/03/17 09:33 PM Re: Spax adjustable set-up. [Re: RicHardy]
RJW Offline

L - Learner Plates On

Registered: 17/10/12
Posts: 156
Loc: Somerset
Thanks Draggin, that's a very useful link.

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#437150 - 17/03/17 12:30 AM Re: Spax adjustable set-up. [Re: RicHardy]
WarBird Offline
WW11 MOG
Talk Morgan Regular

Registered: 24/01/13
Posts: 596
Richard, you will get plenty chance to fine tune your Spax settings at Curborough drive
Can't remember how many clicks, but mine are set quite firm at the front, and quite soft at the rear. If its a wet track I've found that setting the rear shocks to their softest has given improved grip

I've always had the ride height set at 150mm from the bodywork to the floor, but think I'm now going to experiment setting it a little lower for track use.

Tyre pressures seem to make quite a difference and are definitely worth experimenting with.

I'm no expert in any way shape or form, but have found that tyre and suspension settings come down to personal preference at the end of the day....so start experimenting!!

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#437215 - 17/03/17 10:28 AM Re: Spax adjustable set-up. [Re: WarBird]
Richard Wood Offline
Has a lot to Say!

Registered: 03/02/16
Posts: 1487
Loc: East Harling, Norfolk UK
Originally Posted By WarBird
Richard, you will get plenty chance to fine tune your Spax settings at Curborough drive
Can't remember how many clicks, but mine are set quite firm at the front, and quite soft at the rear. If its a wet track I've found that setting the rear shocks to their softest has given improved grip

I've always had the ride height set at 150mm from the bodywork to the floor, but think I'm now going to experiment setting it a little lower for track use.

Tyre pressures seem to make quite a difference and are definitely worth experimenting with.

I'm no expert in any way shape or form, but have found that tyre and suspension settings come down to personal preference at the end of the day....so start experimenting!!


I have no racing experience but road use leaves me with the impression that spring rates are on the soft side at rear compared to front, giving the surpringly comfortable ride.

You certainly wouldn't want that single rear wheel loosing contact with the road surface too often though, so maybe soft damping rates to match make sense.
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2018 Roadster - Red/Magnolia - "Morton"
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#437341 - 17/03/17 08:29 PM Re: Spax adjustable set-up. [Re: RicHardy]
RicHardy Offline
Just Getting Started

Registered: 03/03/13
Posts: 87
Loc: West Mids
Thanks for all the advice. Think I'll leave things as they are until Curborough. Hopefully we will have a dry day and I'll be able to experiment a bit.
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#437371 - 17/03/17 11:23 PM Re: Spax adjustable set-up. [Re: RicHardy]
greenteagod Offline
Learner Plates Off!

Registered: 18/02/16
Posts: 306
Loc: Round Rock TX
Either way, comments from your testing and figuring things out would be good. Especially with some photos or measurements showing where you dialed it in. It's subjective to driving stile and driver, but always good to have a baseline for what someone thinks of X setting.

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#508628 - 14/04/18 11:41 PM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
I finally have all four adjustable dampers installed, would anyone care to share what their settings are?
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2016 M3W John A Prestwich Special

1968 Honda CL175,and 2012 Enfield for sale







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#508638 - 15/04/18 07:48 AM Re: Spax adjustable set-up. [Re: RicHardy]
Dab of oppo Offline

Has a lot to Say!

Registered: 27/05/12
Posts: 1332
Loc: Gods own county! Oop north
Start in the middle, go for a drive and if it feels too soft at either end give it 2 clicks stiffer or if too hard 2 clicks softer and go for another drive.

Keep going until its how you want it.

Make a note of the set up.

Then you can back it off a bit for a wet set up or stiffen it up at the back if you are running 2 up.

There is no quick solution, thats why race teams spend so much time testing.

Worth the effort though.

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#508729 - 15/04/18 07:14 PM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
The instructions that come with the shocks say to start at the softest setting and dial up four clicks at a time from there until it seems worse and then back off click at a time. I too have sent mine at the middle setting to start though.
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2016 M3W John A Prestwich Special

1968 Honda CL175,and 2012 Enfield for sale







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#508737 - 15/04/18 07:32 PM Re: Spax adjustable set-up. [Re: RicHardy]
KenShapiro Offline
Has a lot to Say!

Registered: 31/10/15
Posts: 1432
Loc: Baltimore, Maryland USA
I have chosen to stick with my stock shocks, saving time to spend driving my M3W, riding my Beemer, lying in my hammock and making love to my girlfriend. The money I’m saving will be spent on shrimp and cigars.


Edited by KenShapiro (15/04/18 09:01 PM)
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The Original Ken
2016 Smith & Stankos Special
10,000 miles.

2014 BMW R9T

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#508748 - 15/04/18 08:30 PM Re: Spax adjustable set-up. [Re: KenShapiro]
twotribes Offline
Talk Morgan Enthusiast

Registered: 15/07/11
Posts: 1689
Loc: Kent & Dorset, UK
Originally Posted By KenShapiro
I have chosen to stick with my stock shocks, saving time to spend driving my M3W, riding my Beemer, lying in my hammock and making live to my girlfriend. The money I’m

will be spent on shrimp and cigars.


Making love in a hammock? Be careful..
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Stuart
"There's no skill substitute like cubic inches."

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#508769 - 15/04/18 10:18 PM Re: Spax adjustable set-up. [Re: twotribes]
PaulR Offline
Just Getting Started

Registered: 01/10/16
Posts: 68
Loc: Nr Haverhill UK
Us 3 Wheelers have a finely honed sense of balance
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PaulR

2016 M3W

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#508781 - 15/04/18 11:10 PM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
Im working 70+ hours a week. I have to spend the money on something
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kirkusblog.com
2016 M3W John A Prestwich Special

1968 Honda CL175,and 2012 Enfield for sale







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#508783 - 15/04/18 11:40 PM Re: Spax adjustable set-up. [Re: Draggin]
KenShapiro Offline
Has a lot to Say!

Registered: 31/10/15
Posts: 1432
Loc: Baltimore, Maryland USA
Originally Posted By Draggin
Im working 70+ hours a week. I have to spend the money on something


You’re paying my social security. Thanks. Been retired 11 years now. I think my M3W is perfect as delivered by Morgan. So, I just spent $2,500 on my BMW R9T.
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The Original Ken
2016 Smith & Stankos Special
10,000 miles.

2014 BMW R9T

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#508799 - 16/04/18 02:10 AM Re: Spax adjustable set-up. [Re: RicHardy]
Draggin Offline

Talk Morgan Expert

Registered: 13/07/15
Posts: 2484
Loc: Detroit, Michigan, USA
Im going to change the oil on the R69s this year...
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kirkusblog.com
2016 M3W John A Prestwich Special

1968 Honda CL175,and 2012 Enfield for sale







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#508800 - 16/04/18 02:22 AM Re: Spax adjustable set-up. [Re: Draggin]
KenShapiro Offline
Has a lot to Say!

Registered: 31/10/15
Posts: 1432
Loc: Baltimore, Maryland USA
Originally Posted By Draggin
Im going to change the oil on the R69s this year...


There goes another $75!😱
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The Original Ken
2016 Smith & Stankos Special
10,000 miles.

2014 BMW R9T

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#557393 - 02/02/19 05:42 AM Re: Spax adjustable set-up. [Re: RicHardy]
kankeL Offline
L - Learner Plates On

Registered: 12/08/09
Posts: 118
Loc: Aptos, CA
Guys, my SPAX shocks came without any instructions. The link provided in this thread is dead.

Would you please share the instructions in case you have it? Just want to make sure I adjust the preload correctly.
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#557406 - 02/02/19 09:03 AM Re: Spax adjustable set-up. [Re: RicHardy]
Bunny Offline

Talk Morgan Regular

Registered: 15/03/14
Posts: 680
Loc: Leicestershire, UK
My front Spax are set up with 95mm between the centre of the bolt hole and the upper surface of the spring seat. This gives me a ride height around 5mm lower than stock. Obviously, when fitted they can be tweaked if necessary so that you end up with an even ride height side to side. Another approach is to adjust so that the steering arms are horizontal.

Regarding firmness: Start off with 10 clicks from softest and go from there.

Can't help you with the rears because I don't have them fitted!
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#557408 - 02/02/19 09:08 AM Re: Spax adjustable set-up. [Re: RicHardy]
RedThree Offline

Talk Morgan Expert

Registered: 23/10/12
Posts: 2037
Loc: Furry Boots City
Try going to Spax Downloads Page and then to the Krypton Dampers owners manual link. That should get the instructions, such as they are.
The black art bit for road use usually consists of setting the preload to give what looks like the right ride height then driving it and adjusting the damping till it feels about right. What feels right on the road is right: it's different for competition use and involves stopwatches! Also, for road use there is a fairly wide window of damper settings that work well or to put it another way, a one click change might make a particular bumpy corner slightly more controlled and comfortable but the next corner might not be quite as good as it was before! Once you have it working well then consider adjusting the preload, again for road use the damping might not need changed for a small preload change but it is worth going up and down a couple of clicks to see what happens to the feel on the road.
Don't be daunted by how vague it all sounds, the chances are that the damping is set at a fairly decent setting out of the box but do check what the setting is - you need to know where you are starting from.
Have fun and remember that a lot of the benefit of replacement shocks is that the uncontrolled free play before the damping kicks in is much reduced compared to the originals, they also tend to have much better bumpstops so the end of travel movement is better controlled and they are much less inclined to overheat too.
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#557476 - 02/02/19 04:41 PM Re: Spax adjustable set-up. [Re: RicHardy]
06032 Offline
Just Getting Started

Registered: 02/11/18
Posts: 96
Loc: CT, USA
Timely thread. Just installed my front Ohlins and am waiting excessive motivation to tackle the rears. Not to mention the arrival of Spring for these 'seat of the pants' black art tweaks.
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#559127 - 11/02/19 07:33 AM Re: Spax adjustable set-up. [Re: RicHardy]
kankeL Offline
L - Learner Plates On

Registered: 12/08/09
Posts: 118
Loc: Aptos, CA
Thanks, guys! Installed all 4 shocks. Changed the rear tire as well, since it all was taken apart. Had to grind down 3 bushings, as they were wider than the frame mount. Waiting for a dry day to test it out!

What ride height are tou running? (Unloaded)
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