Has anyone ever taken the roof off a cerbera.
Discussion
GT6k said:
This is the internal framework, so any targa/sunroof,roof chop has to preserve this or replace the strength it gives to the windscreen frame.
Now does anyone have a similar render for the framework behind the rear headrests?
TwinKam said:
Great pic, I'd been searching for something like that, where did you find it?
Now does anyone have a similar render for the framework behind the rear headrests?
I drew it in solidworks when i was trying to design a proper rollcage to meet competition rule for sprinting, I measured up several cars to get all the dimensions and it is pretty close to correct but the bends are difficult to measure accurately. I don't have a solidworks licence anymore but I will put the file here for anyone who wants it. https://1drv.ms/u/s!AvCucYc7_gGngb0hTf_QUeiPMfuk2g...Now does anyone have a similar render for the framework behind the rear headrests?
The diagram is taken from the file 'Both sides slant' Also in there is a document of all the information i could find and lots of photos of several cars including a couple of racers which clearly show all the tubes and the rear seat frame structure.
There's also a picture here http://www.wreckedexotics.com/accident/1946?c=mo52 which is the only time you get to see the whole rear frame.
Edited by GT6k on Tuesday 9th February 15:33
Edited by GT6k on Tuesday 9th February 15:34
Edited by GT6k on Tuesday 9th February 15:55
GT6k said:
TwinKam said:
Great pic, I'd been searching for something like that, where did you find it?
Now does anyone have a similar render for the framework behind the rear headrests?
I drew it in solidworks when i was trying to design a proper rollcage to meet competition rule for sprinting, I measured up several cars to get all the dimensions and it is pretty close to correct but the bends are difficult to measure accurately. I don't have a solidworks licence anymore but I will put the file here for anyone who wants it. https://1drv.ms/u/s!AvCucYc7_gGngb0hTf_QUeiPMfuk2g...Now does anyone have a similar render for the framework behind the rear headrests?
The diagram is taken from the file 'Both sides slant' Also in there is a document of all the information i could find and lots of photos of several cars including a couple of racers which clearly show all the tubes and the rear seat frame structure.
There's also a picture here http://www.wreckedexotics.com/accident/1946?c=mo52 which is the only time you get to see the whole rear frame.
Yes great pictures, and explanation.
So how did they overcome this on the chimaera.
What extra structure does the chimaera have .
Edited by GT6k on Tuesday 9th February 15:33
Edited by GT6k on Tuesday 9th February 15:34
Edited by GT6k on Tuesday 9th February 15:55
So how did they overcome this on the chimaera.
What extra structure does the chimaera have .
GT6k said:
If you mean how does the Chimaera windscreen frame have enough strength, then I don't know and I don't know whether the structure is the same.
Is the windscreen not supported by the closed door harder panel to stop it flexing too much?Edited by GT6k on Tuesday 9th February 21:52
Obviously the Cerb does not have this.
jazzybees said:
C350Akra said:
How much money do you have? Anything is possible if you throw enough money at it. Given the structure of a Cerbera I doubt it will be easy or cheap to come up with an effective top removal and will not be an investment you would get a return on.
I would never sell it.I’m not sure on the weight difference.
But I would imagine, structurally the cerbera and chimaera. Would not be much different .
Previous experience with a Spitfire/GT6 and having seen some other poor roof chops is that the issues are scuttle shake and whether the A post is stiff enough to support the doors. Cerbera doors are a lot longer then Chimaera ones and all that weight is going to be supported on a single tube sticking up from the outrigger.
GT6k said:
Previous experience with a Spitfire/GT6 and having seen some other poor roof chops is that the issues are scuttle shake and whether the A post is stiff enough to support the doors. Cerbera doors are a lot longer then Chimaera ones and all that weight is going to be supported on a single tube sticking up from the outrigger.
Would the closed door harder panel to stop it flexing too much, solve that problem,Or fitting a lighter weight door. It’s made out of fibreglass, so perhaps minimal door trim.
C350Akra said:
jazzybees said:
C350Akra said:
How much money do you have? Anything is possible if you throw enough money at it. Given the structure of a Cerbera I doubt it will be easy or cheap to come up with an effective top removal and will not be an investment you would get a return on.
I would never sell it.I’m not sure on the weight difference.
But I would imagine, structurally the cerbera and chimaera. Would not be much different .
This is a plan of the cerbera frame. (Thank you GT6k)
It does show the cerbera having the protection designed into the whole top ( “A” post to “B” post, left and right sides.)
It also shows the front screen, having a structure round it.
I wonder if that would be enough support.
Also taking to account the cerbera having longer doors.
Byker28i said:
Three threads on this? Genera TVR, Cerbera and now on the Typical Cerbera history thread?
Crumbs,Sorry, I did slip up there.
It did start on the typical cerbera history thread,
But I realised, that I had slightly distracted from original post of that thread.
So I started its own thread.
But I wasn’t too sure where to put it.
So I asked the question, in the cerbera thread and the general tvr thread.
Which in a way, is not too bad.
Because I am getting two different set of answers, from different sets of people/posters.
Which I thank all for their input.
Zeb74 said:
Ouch!
What happened to the occupants? Wait... maybe I don't want to know...
let's face it, a griff/chim isn't the safest of cars.What happened to the occupants? Wait... maybe I don't want to know...
I've done scores of TD's in chims with a reasonable roll bar and harness fitted but would still not give it 100% on track. There is always a little man in the back of my head saying that I will most probably die or at least be seriously injured in a crash. It's not rocket science, there isn't good protection in these cars. Keep that in mind and drive accordingly and you will have a fair chance of survival.
By comparison, a friend who is a seasoned ring addict rolled his GT3 three times on the track at speed. Both his passenger and he walked away without even a bruise, (glad I wasn't the passenger though).
There have been a lot of instances where people have died in TVR crashes, several of them documented over the years in the press. The breakers yards up north are filled with TVR wrecks.
phazed said:
let's face it, a griff/chim isn't the safest of cars.
I've done scores of TD's in chims with a reasonable roll bar and harness fitted but would still not give it 100% on track. There is always a little man in the back of my head saying that I will most probably die or at least be seriously injured in a crash. It's not rocket science, there isn't good protection in these cars. Keep that in mind and drive accordingly and you will have a fair chance of survival.
By comparison, a friend who is a seasoned ring addict rolled his GT3 three times on the track at speed. Both his passenger and he walked away without even a bruise, (glad I wasn't the passenger though).
There have been a lot of instances where people have died in TVR crashes, several of them documented over the years in the press. The breakers yards up north are filled with TVR wrecks.
Which is why I sold mine.I've done scores of TD's in chims with a reasonable roll bar and harness fitted but would still not give it 100% on track. There is always a little man in the back of my head saying that I will most probably die or at least be seriously injured in a crash. It's not rocket science, there isn't good protection in these cars. Keep that in mind and drive accordingly and you will have a fair chance of survival.
By comparison, a friend who is a seasoned ring addict rolled his GT3 three times on the track at speed. Both his passenger and he walked away without even a bruise, (glad I wasn't the passenger though).
There have been a lot of instances where people have died in TVR crashes, several of them documented over the years in the press. The breakers yards up north are filled with TVR wrecks.
There are McLaren wrecks and I bet a fair few Audi hanging about in scrap yards too.
How many soft tops with a similar configuration would end up exactly the same if involved in what looks like a horrendously violent accident in the grotesque picture posted above.
Ok Tvr are an old style car so as Peter says you have to drive accordingly but as I know MAZDA MX5 race cars fairly well anything hitting you side on will cave the tin door in in no time. Metal is an illusion of strength. I could cave one of those Mazda doors in with a kick.
Only a race cage or proper crash structure ( cell ) is really any good.
Luckily the crash involving the GTR on a race track they presumably had helmets on.
Without a helmet rolling any vehicle is liable to cause brain damage from belting your head off door pillars etc unless you are fully harnessed in.
How many soft tops with a similar configuration would end up exactly the same if involved in what looks like a horrendously violent accident in the grotesque picture posted above.
Ok Tvr are an old style car so as Peter says you have to drive accordingly but as I know MAZDA MX5 race cars fairly well anything hitting you side on will cave the tin door in in no time. Metal is an illusion of strength. I could cave one of those Mazda doors in with a kick.
Only a race cage or proper crash structure ( cell ) is really any good.
Luckily the crash involving the GTR on a race track they presumably had helmets on.
Without a helmet rolling any vehicle is liable to cause brain damage from belting your head off door pillars etc unless you are fully harnessed in.
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