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Re: Rear roll bar for a + 4 [Re: gomog] #12080
30/11/07 10:49 PM
30/11/07 10:49 PM
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Originally Posted By gomog
There is also another problem I may have noted earlier. Most Morgan roll bars (including those of Safety Device) are made to fit under a Morgan top. That makes them too short..as a normal person's head extends over the height of these bars. For that reason they cannot be used on a racetrack. There is a bolt-on extension that raises the height to make it certifiable.


To clarify the point, a small hoop extension to a rollbar is now not allowed under MSA or FIA regs (where fitted they have had to be removed) - some details of the discussion prior to this year's meetings can be found at http://www.mogsport.net/info/rollbars.html - so the seat has to be lowered to get the required clearance. It is unclear whether a full width bolt-on extension may be allowed - may simply depend on the scrutineer on the day...

Most in the race series use the Safety Devices rollbars/roll cages which fit under the hood or hard top without problem.

Re: Rear roll bar for a + 4 [Re: chris] #12082
30/11/07 11:12 PM
30/11/07 11:12 PM
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N.Yorks, UK
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Thanks, I'll try Mogsport - but what I'm looking for is a stainless bar for road only, I have no interest in track use.

Re: Rear roll bar for a + 4 [Re: chris] #12083
30/11/07 11:14 PM
30/11/07 11:14 PM
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Mont Tremblant, Quebec CANADA
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Originally Posted By chris

To clarify the point, a small hoop extension to a rollbar is now not allowed under MSA or FIA regs (where fitted they have had to be removed) - some details of the discussion prior to this year's meetings can be found at http://www.mogsport.net/info/rollbars.html - so the seat has to be lowered to get the required clearance. It is unclear whether a full width bolt-on extension may be allowed - may simply depend on the scrutineer on the day...

Thanks for the help Chris. Can one lower a stock Morgan seat that much?

Originally Posted By nputtick
Thanks, I'll try Mogsport - but what I'm looking for is a stainless bar for road only, I have no interest in track use.

Road Morgans do not roll. However, if you want one, it is best to get something that will protect you so it must be higher than your head. As your top will prevent you using a roll bar that high, your solution, as Chris notes, is to lower your seat.

Lorne


Re: Rear roll bar for a + 4 [Re: gomog] #12092
01/12/07 08:09 AM
01/12/07 08:09 AM
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Originally Posted By gomog
Can one lower a stock Morgan seat that much?

Well, I don't think that many people sit so tall in even the standard seat that their head is above the top of the normal Safety Devices roll bar. The problem principally occurs when a helmet is worn, which adds significantly to the overall height. So for road use I don't think that many would have to lower the seat.

But, for competition, the solution is to put in a race seat and secure it on the floor not on the cross members (but then you have to replace the floor with aluminium sheet of a minimum thickness).


Re: Rear roll bar for a + 4 [Re: chris] #12093
01/12/07 08:46 AM
01/12/07 08:46 AM

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Originally Posted By chris


So for road use I don't think that many would have to lower the seat.



Chris,

It depends on the model. I'm tall but I never thought about changing the seats. With the Roadster II I do. You sit much higher in a Series II than in the S I. As far as I know there was no wood under the rails in the S I but in my new car I touch the hood frame with my head as the wooden parts have returned. I will try to find a way to lower the seat. Getting rid of the wood is easy but I assume the seat's new position has to do with the new suspension and if I just removed the wooden parts I would not be able to push the the seat far enough back.

Roderich

Re: Rear roll bar for a + 4 [Re: ] #12095
01/12/07 09:23 AM
01/12/07 09:23 AM
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Interesting. I don't think I have seen any Roadster IIs so hadn't realised there was a difference. I wonder why they have changed that. Presumably in the SI you could get the seat far enough back without the wooden blocks?

Re: Rear roll bar for a + 4 [Re: chris] #12096
01/12/07 09:39 AM
01/12/07 09:39 AM

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Originally Posted By chris
Interesting. I don't think I have seen any Roadster IIs so hadn't realised there was a difference. I wonder why they have changed that. Presumably in the SI you could get the seat far enough back without the wooden blocks?


I assume it has to do with the new springs and/or the anti-tramp bars that you can't get the seats far enough back without wooden blocks now?????

Roderich


Re: Rear roll bar for a + 4 [Re: ] #12099
01/12/07 10:31 AM
01/12/07 10:31 AM
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"Road Morgans do not roll" ...?

I wouldn't think I could induce a roll in normal driving on the road - I'm not in any way that sort of driver! What interests me is the additional protection offered in case of accident, as rolling over can be induced by side or oblique impacts, or if forced off the road. Also a roll bar would presumably provide more of a safety refuge area to protect against impact or intrusion. Of course this is all based on what seems to be common sense - or perhaps conjecture - as I don't know what crash experience there is with these devices. It is not about cosmetics, though IMO the stainless ones do look good on the car.

Last edited by nputtick; 01/12/07 10:38 AM.
Re: Rear roll bar for a + 4 [Re: nputtick] #12105
01/12/07 01:00 PM
01/12/07 01:00 PM

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I tried to find some information on "German" roll bars for Morgans but in the article on the Morgan Continental Championships they didn't mention the supplier but the prices:

Roll bar, EASY to fit and to remove, 350 DM = 175 Euro = 120 GBP.
That was 1993. Fitiing 280 DM = 140 Euro = 100 GBP.

Between 1993 and 2007 something went terribly wrong...

Re: Rear roll bar for a + 4 [Re: ] #12110
01/12/07 04:25 PM
01/12/07 04:25 PM
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I still maintain that A 'BoneDome' is a cheaper alternative for a 'Road Going' Mog, the chance of a 'side impact' turning you over is negligable because of the distance between the axles and the 'possible' point of impact; more likely to tip the car towards the on - coming vehicle and making side impact to the body/head more probable.

I know a 'helmet' in a 'Mog' is considered 'OTT' but it doesn't look 'Out of Place' and has other advantages. I'm also a Stirling Moss devoute.

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