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#547903 - 13/12/18 06:32 PM +8 tyre pressures
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK
Apologies if this has been done to death but what tyre pressure do people run on recent +8s? I'm new to the +8 and I've been using it at 2.2 bar (32 psi) since I collected it from Krazy Horse in the summer. The car is on 245/40 R18 Yokohama Advans and ride comfort was not too bad so I've only now got round to checking it (I know I know .. probably should have done it before..)
The manual says 25 psi (1.7 bar) but presumably it was set at 32 psi for a reason. 32 psi strikes me as high (low mass car and relatively wide footprint etc) but as the ride comfort was not too bad maybe thats right. Who knows? Certainly not me! and I would appreciate any feedback based on personal experience.

Thanks guys.
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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#547904 - 13/12/18 06:33 PM Re: +8 tyre pressures [Re: Almond]
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK
PS: ARP4 now changed for the +8 Speedster so sorry for confusing sign off. I'll change it.
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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#547909 - 13/12/18 07:09 PM Re: +8 tyre pressures [Re: Almond]
John Winn Offline
L - Learner Plates On

Registered: 27/05/12
Posts: 108
I have always run my Speedster at 25 psi.


Edited by John Winn (13/12/18 07:58 PM)

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#547915 - 13/12/18 07:43 PM Re: +8 tyre pressures [Re: Almond]
Alistair Offline
Smile, it confuses them
Charter Member

Registered: 18/03/09
Posts: 5751
Loc: Hampshire
I run my Series 2 Aero at 25 front and 26 back on Mich PSS.
_________________________
Just time to burn a little more petrol before dinner.

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#547921 - 13/12/18 08:22 PM Re: +8 tyre pressures [Re: Almond]
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK
Many thanks for the quick feedback John, Alistair. 25 psi it is then, with maybe a bit more at the back when with luggage etc.
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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#547931 - 13/12/18 09:17 PM Re: +8 tyre pressures [Re: Almond]
britmog Offline
L - Learner Plates On

Registered: 13/12/17
Posts: 173
Loc: Colorado, USA
I have always run my 1994 +8 at 22 psi both front and back. Found this pressure to give the correct handling and ride comfort for me especially on the twisty mountain roads here in Colorado.

I would try different pressures between 22 - 26 psi and see which you prefer.
_________________________
Bruce Marshall
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice)
2013 M3W (Olga)

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#547934 - 13/12/18 09:37 PM Re: +8 tyre pressures [Re: Almond]
Heinz Online   content

Talk Morgan Addict

Registered: 07/09/09
Posts: 3725
Loc: Cologne, Germany
And with only a small difference between front and rear you can adjust the wanted degree of oversteer or understeer very well.

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#547983 - 14/12/18 10:03 AM Re: +8 tyre pressures [Re: britmog]
robmog88 Offline

Talk Morgan Regular

Registered: 21/05/07
Posts: 900
Loc: Walsall, uk
Agree 22 all round on Toyo proxes

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#547984 - 14/12/18 10:22 AM Re: +8 tyre pressures [Re: robmog88]
Graham, G4FUJ Offline
Salty Sea Dog
Member of the Inner Circle

Registered: 03/07/07
Posts: 22059
Loc: Cheltenham, Glos. UK
Originally Posted By britmog
I have always run my 1994 +8 at 22 psi...

Originally Posted By robmog88
Agree 22 all round...


One slight problem with those answers - the OP is requesting pressures for the Aero (ally chassis) based Plus 8, not a trad/classic. The tyres on the Aero Plus 8 are more like rubber bands. smile
_________________________
Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper

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#548112 - 14/12/18 10:13 PM Re: +8 tyre pressures [Re: Almond]
Taffmog Offline
Talk Morgan Enthusiast

Registered: 22/09/10
Posts: 1539
Loc: Wales
25psi for me on the Aero +8.......

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#548129 - 15/12/18 04:58 AM Re: +8 tyre pressures [Re: Almond]
Stewart S Offline
Wave & smile... It's a Morgan
Member of the Inner Circle

Registered: 14/06/14
Posts: 10473
Loc: Lancashire, England
32 psi does seem high Ian for the weight of a modern Plus 8 or any Morgan

If you were mostly motorway driving at speed then a higher pressure might be advantageous (mainly for tyre wear, economy, reducing heat and water dispersment in the wet) but for general driving 25 sounds much more appropriate for getting the right traction and handling
_________________________
2008 Bugatti Blue Roadster 4 Seater

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#548153 - 15/12/18 09:26 AM Re: +8 tyre pressures [Re: Almond]
KEVFITZ Offline
Has a lot to Say!

Registered: 26/09/14
Posts: 1481
Loc: YORK
Nice series of cars Almond:

P4SS (Almond Green)

ARP4 (Black)

+8 Speedster (?(

Any pictures of Speedster?
_________________________
HEAR THOSE THROTTLE BODIES ROAR ….UNEXPLODED BOMB !!!!

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#548159 - 15/12/18 09:43 AM Re: +8 tyre pressures [Re: Almond]
JB62 Offline
Learner Plates Off!

Registered: 20/03/14
Posts: 362
Loc: Berkshire/Oxon & Devon
Run my Speedster at 22 psi all round. Tried higher - didn’t like the ride so much and it’s hardly as I am using the Speedster on the edge of its performance.

It would kill me whatever the tyre pressure if I tried.
_________________________
V8 Speedster

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#548276 - 15/12/18 10:08 PM Re: +8 tyre pressures [Re: Almond]
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK
Thanks again all! Graham's comment well noted re ally chassis vs. trad. It looks like a consensus on 25psi and I adjusted to that earlier today. I was going to take a run out to see how it felt but logsplitting duties prevailed - felt suitably manly in the cold winds of Cambridgeshire with an axe and chainsaw.

Kev, Thanks for the comments. These are my sort of Morgans and I would love to have kept them but that was never an option for various reasons - especially budget!
I'll post a picture of the Speedster as soon as I work out how to do it however the car is still on the Morgan used car locator at Krazy Horse (marked sold). Its the blue one with white rondels etc - bit of a P4SS and ARP4 conenction in my mind. These are the sort of Morgan's I love.

Thanks again for all the useful comments. Great forum!
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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#548290 - 16/12/18 07:20 AM Re: +8 tyre pressures [Re: Almond]
Graham, G4FUJ Offline
Salty Sea Dog
Member of the Inner Circle

Registered: 03/07/07
Posts: 22059
Loc: Cheltenham, Glos. UK
For posting photos, if you don't currently have access to a photo hosting site, sign up to https://www.tm-img.com
Started by a gentleman here (Peter, Gambalunga) and maintained by him and Tim (Hamwich).
Instructions here: https://www.tm-img.com/page/ifu

cheers
_________________________
Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper

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#548307 - 16/12/18 09:28 AM Re: +8 tyre pressures [Re: Almond]
KEVFITZ Offline
Has a lot to Say!

Registered: 26/09/14
Posts: 1481
Loc: YORK



This one ?
_________________________
HEAR THOSE THROTTLE BODIES ROAR ….UNEXPLODED BOMB !!!!

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#548314 - 16/12/18 09:55 AM Re: +8 tyre pressures [Re: KEVFITZ]
John Winn Offline
L - Learner Plates On

Registered: 27/05/12
Posts: 108
Yes the very one.

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#548347 - 16/12/18 02:10 PM Re: +8 tyre pressures [Re: Almond]
Stringers Best Mate Offline

Talk Morgan Sage

Registered: 16/10/13
Posts: 6276
Loc: Northamptonshire UK
Oh, I DO like that..
_________________________
Steve

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#548353 - 16/12/18 02:40 PM Re: +8 tyre pressures [Re: Almond]
Jays Offline

Member of the Inner Circle

Registered: 08/02/11
Posts: 14003
Loc: Cumbria UK
I could almost be tempted 😳
_________________________
Jays
Former Morgan owner. Gone but hopefully not forgotten!

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#548358 - 16/12/18 02:57 PM Re: +8 tyre pressures [Re: Almond]
KEVFITZ Offline
Has a lot to Say!

Registered: 26/09/14
Posts: 1481
Loc: YORK
No good for Cumbria John !!!!
_________________________
HEAR THOSE THROTTLE BODIES ROAR ….UNEXPLODED BOMB !!!!

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#548411 - 16/12/18 09:00 PM Re: +8 tyre pressures [Re: Jays]
Gambalunga Offline

Member of the Inner Circle

Registered: 03/09/11
Posts: 11137
Loc: Mandello del Lario, Lake Como,...
Originally Posted By Jays
I could almost be tempted 😳

John! Don't be a tart somestick
_________________________
Peter


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#548766 - 18/12/18 07:06 PM Re: +8 tyre pressures [Re: Almond]
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK




Lets see if this works...
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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#548769 - 18/12/18 07:11 PM Re: +8 tyre pressures [Re: Almond]
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK
Thanks Graham for pointing out how to post pictures.

Previous post in the Speedster - I fell for the '8' on the mesh grille of the latest 50th anniversary model so Krazy Horse added that although you can't see it due to reflections in the picture. They also did a few other bits n pieces for me before taking delivery.

PS: tyre pressures reduced to 25 psi and much better traction. Went out on cold and greasy Norfolk roads on Sunday and was pleasantly surprised by the road contact feel and general grip. Comfort not so different but then maybe I have no sensitivity left after a couple of years in the ARP4!





Edited by Almond (18/12/18 07:15 PM)
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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#548789 - 18/12/18 08:20 PM Re: +8 tyre pressures [Re: Almond]
Heinz Online   content

Talk Morgan Addict

Registered: 07/09/09
Posts: 3725
Loc: Cologne, Germany
Almond, is the Elise also yours?

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#548807 - 18/12/18 09:19 PM Re: +8 tyre pressures [Re: Almond]
Graham, G4FUJ Offline
Salty Sea Dog
Member of the Inner Circle

Registered: 03/07/07
Posts: 22059
Loc: Cheltenham, Glos. UK
Very nice!
Glad you have the photo side of things figured out now smile
_________________________
Graham (G4FUJ)

D8921 L44FOR '93 4/4 Giallo Fly 2 seat smile
'90 LR 90 SW
'07 MINI Cooper

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#548815 - 18/12/18 10:11 PM Re: +8 tyre pressures [Re: Almond]
+8Rich Offline

Member of the Inner Circle

Registered: 15/12/09
Posts: 19475
Loc: Devonshire
You are a very lucky boy, that colour suits it down to the ground.
_________________________
Richard
1999 Indigo +8






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#556885 - 31/01/19 07:19 AM Re: +8 tyre pressures [Re: Almond]
SteveLoc Offline

New to Talk Morgan

Registered: 10/02/18
Posts: 23
Loc: Kent
Hello Ian,
Enjoy the +8 I hope you have many great drives, I love the colour.
I still love the Almond +4SS after a long trip in the summer it has loosened up nicely.
All the best


Edited by SteveLoc (31/01/19 07:21 AM)
_________________________
1978 +8 Indigo Blue “race car”
2011 +4 Super Sports 16/60 Almond Green

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#556889 - 31/01/19 08:02 AM Re: +8 tyre pressures [Re: Almond]
Neilda Offline
Part of the Furniture

Registered: 26/04/12
Posts: 4475
Loc: Surrey. UK
Looks terrific.... love the spots.
_________________________
+8 4.8

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#556908 - 31/01/19 09:22 AM Re: +8 tyre pressures [Re: Almond]
KEVFITZ Offline
Has a lot to Say!

Registered: 26/09/14
Posts: 1481
Loc: YORK
SteveLoc

Don't tell everybody how special Almond Green P4SSs are !!!

Everybody will want one !!!

Keep The Faith !!
_________________________
HEAR THOSE THROTTLE BODIES ROAR ….UNEXPLODED BOMB !!!!

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#563220 - 02/03/19 08:14 PM Re: +8 tyre pressures [Re: Almond]
Almond Offline
Just Getting Started

Registered: 28/07/16
Posts: 49
Loc: Cambs., UK
Sorry for tardy reply al, but work/life has been a bit hectic of late. And to make things even worse, major works going on at home mean the Morgan has been confined to the garage for the past month, inclduing the great weather last week (big trench across the front of the +8's garage for new services/gates to be installed which have been held up). It will make finally getting out in the car all the sweeter .. (really?).

Thanks for the message Steve and good to know Monsieur Almond is going well and properly loosened up. Its well established (in my mind anyway) that Almond Green is the second best colour for a Morgan so enjoy. Same to Kev!

Just invested in an open face helemt (Schuberth, a la John Winn). Got a dent in my forehead from a small stone last time out - I fear that even screwing my eyes up tight behind sunglasses may not provide full protection at +8 speeds..

All the best to all you boys and girls - enjoy and be carefull out there.
_________________________
Ian
now +8 and ex-ARP4 (weeps quietly)

A convert to the joy of Morgans after years of motorcycles

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