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#551643 - 04/01/19 09:47 AM Re: I.R.S. [Re: howard]
DaveW Offline
Roadster Guru
Member of the Inner Circle

Registered: 11/12/08
Posts: 17441
Loc: South Yorkshire
I think that was the Roadster which I saw at Mulfab way back. It also had what I remember as a five link rear end which had leading arms. Simon will know.

The biggest problem with the Trad is the low chassis and the limited space between it, and the vertical inner wing. You couldn't fit an outboard hub without some serious wood cutting.
A Chapman strut might fit but it would intrude into the space behind the seats.
_________________________
DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4

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#551647 - 04/01/19 10:14 AM Re: I.R.S. [Re: Culminator]
MOG 615 Offline

Has a lot to Say!

Registered: 24/09/14
Posts: 1388
Loc: London
Originally Posted By Culminator
If I remember rightly, Dave Rutherford built a Trad Plus 8 with a Caterham De Dion set up. Semi independent but used for his race car.


I raced with David Rutherford in the 70s and 80s and he was forever in a 4/4. I don't remember him in a +8 , however my memory ain't what it used to be! Rob Wells developed a race +8 (the "Funny Car") but even that had a live rear axle.

I don't think that the design of the trad Morgan is suitable for an IRS system without drastic modifications , and as others have commented we would end up with the Aero 8 system.

That is why the current solutions to the rear suspension (be they Rutherford/Mulberry or MMC , or SSL) focus on utilising the live axle. It enables us to maintain the current chassis, and bodywork that we all love.
_________________________
Andy G
1999 +8 , Indigo Blue.
Ex-John McKecknie/Mike Duncan 1955 +4 racer.

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#551657 - 04/01/19 11:12 AM Re: I.R.S. [Re: MOG 615]
BobtheTrain Online   content

Charter Member

Registered: 15/04/14
Posts: 5226
Loc: Renfrewshire
I was under the impression that a live axle powered the wheels and a dead axle only supported the wheels. On a rear wheel drive the rear axle is live and the front dead. On a front wheel drive, vice versa.
_________________________
Best Regards
Lang may yer lum reek

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#551667 - 04/01/19 11:51 AM Re: I.R.S. [Re: howard]
DaveW Offline
Roadster Guru
Member of the Inner Circle

Registered: 11/12/08
Posts: 17441
Loc: South Yorkshire
It would make a lovely garage job over winter but starting with a major strip down.

As with all these things, you have to balance the improvement against the cost and the work involved.

Obviously here we tend to shell out vast amounts of money anyway, because it's part of the fun.

I daren't tell MrsW how much my Roadster brake upgrades & Panhard Rod have cost......
_________________________
DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4

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#551696 - 04/01/19 02:15 PM Re: I.R.S. [Re: howard]
Robbie Online   content

Talk Morgan Expert

Registered: 08/01/07
Posts: 2656
Loc: Co Wexford, Ireland
I also only owned up to “ had the suspension serviced” when having the SSL fitted!!!!!!!

Cheers and a Happy new year all
_________________________
Robbie
2018 Plus4 - The Black Pearl
181-WX-3082

"Fettlebodge"-- chief of the PaddyMogs

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#551709 - 04/01/19 03:12 PM Re: I.R.S. [Re: DaveW]
CooperMan Offline

Talk Morgan Regular

Registered: 19/11/15
Posts: 929
Loc: Yorkshire
Originally Posted By DaveW
It would make a lovely garage job over winter but starting with a major strip down.

As with all these things, you have to balance the improvement against the cost and the work involved.

Obviously here we tend to shell out vast amounts of money anyway, because it's part of the fun.

I daren't tell MrsW how much my Roadster brake upgrades & Panhard Rod have cost......


Dave, have you only fitted the Panhard so far ?
_________________________
Jon M

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#551722 - 04/01/19 04:08 PM Re: I.R.S. [Re: howard]
DaveW Offline
Roadster Guru
Member of the Inner Circle

Registered: 11/12/08
Posts: 17441
Loc: South Yorkshire
Yes, I don't have any spare time, being retired and all.........

Hoping to do the brakes in January though. They look lovely on the bench..........
_________________________
DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4

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#551732 - 04/01/19 04:37 PM Re: I.R.S. [Re: howard]
Gambalunga Offline

Member of the Inner Circle

Registered: 03/09/11
Posts: 11326
Loc: Mandello del Lario, Lake Como,...
Originally Posted By howard
.............you might just as well go the Aero route.

Or wait to see just what it is that Morgan has under wraps for Geneva wink
_________________________
Peter


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#551740 - 04/01/19 05:49 PM Re: I.R.S. [Re: BobtheTrain]
IvorMog Offline

Talk Morgan Regular

Registered: 17/04/17
Posts: 792
Loc: Staffordshire
Originally Posted By BobtheTrain
I was under the impression that a live axle powered the wheels and a dead axle only supported the wheels. On a rear wheel drive the rear axle is live and the front dead. On a front wheel drive, vice versa.


The term "live axle" refers to an axle where the hubs are connected by a solid beam with no relative articulation between them.

A live axle can be either driven or non-driven but also steering or non-steering.

On the Trads we have a driven live axle at the rear with independent non-driven axles at the front.

In the early days of cars and up to later on trucks, live non-driven steering axles were used on the front before the changes to independent suspension.

Modern cars all use independent suspension all round whether it's driven or non-driven.
_________________________
Bob

1999 4/4 1.8 Zetec

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#551746 - 04/01/19 06:09 PM Re: I.R.S. [Re: DaveW]
Guten Offline
Learner Plates Off!

Registered: 18/02/07
Posts: 340
Loc: Lincolnshire
There's always the option of buying a Lotus? hide
_________________________
Simon

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