Carbon Fiber Griffith Projects
Discussion
mmmmm.....a posting in the classifieds clears it all up...
so, 'shameful advertising' to one side - what else might be coming up?
Please tell me that the two bodyshells you have in the photo are GRP - or could one of them be a CF shell???
In fact, is that a mould I can see lurking in the background of another photo??? Have you been talking to Mr. Edgar.....
so, 'shameful advertising' to one side - what else might be coming up?
Please tell me that the two bodyshells you have in the photo are GRP - or could one of them be a CF shell???
In fact, is that a mould I can see lurking in the background of another photo??? Have you been talking to Mr. Edgar.....
Edited by jeboa on Sunday 16th June 20:15
Well, if I had a 'dream sheet', if you could work your CF wonder to produce one of these:
With a Sportmotive Evolution Chassis, and an LS3 (or maybe even a 'Powers Performance' 4.5 SP6.....keep it British....)
...now that would be nice
I guess the tragic thing is, the only way you could do it 'officially' is to start with an original Griffith - but there'd be nothing left in the end.... (just a lot of spare parts for everyone else!)
I still think this is one of the best looking cars that was never made.
With a Sportmotive Evolution Chassis, and an LS3 (or maybe even a 'Powers Performance' 4.5 SP6.....keep it British....)
...now that would be nice
I guess the tragic thing is, the only way you could do it 'officially' is to start with an original Griffith - but there'd be nothing left in the end.... (just a lot of spare parts for everyone else!)
I still think this is one of the best looking cars that was never made.
Edited by jeboa on Monday 17th June 22:35
jeboa said:
DonkeyApple said:
What's the weight of a traditional Griff shell and the savings for CF?
..and I forgot to say, I'd be more interested to know what the increase in impact/crash protection is with a CF body shell.
now that I like. Did you create a mold for the mouth or was it done freehand on the car? I really like what you did there. Nice one.
DonkeyApple said:
Not much, I suspect. There'd be less material as its stronger so netting off that gain.
To a degree this is correct, but would add that it depends on how you design the sequencing of the fabric and what material selection you have, also the resin you are using as well as the cure temp and the temp up and down.Our cf griff is very light but far stronger that a std one, to the point you can put it upside down and the screen surround will stay up, the made this area as a structural component, also the A and B post area. The sills were also treated as structural and as such make the shell very still but very strong in an impact,
The tunnel is multi cored which stops twist and flex, ( I'm keeping this simple but can give hard data for those who want it, MPA, tensile, sheer etc)
The floor is also cored and has Aramid in it to prevent penetration from under the floor
This has also been done for the doors,
We also use a combination of fabrics to maximise their properties, these are some we used, uni directional 3 weights, biaxles, 2 x 2 tills, plain weave, satin weave, mostly 1200 filliment, various hybrids
We don't want to give to much away of how we made it, But there is no flex in it, in fact it stiffens up the chassis because of the design of the tub area
In short the cf shell is far stronger and safer that the std grff but only weighs 45 kg apx
Polly Ester said:
DonkeyApple said:
Not much, I suspect. There'd be less material as its stronger so netting off that gain.
To a degree this is correct, but would add that it depends on how you design the sequencing of the fabric and what material selection you have, also the resin you are using as well as the cure temp and the temp up and down.Our cf griff is very light but far stronger that a std one, to the point you can put it upside down and the screen surround will stay up, the made this area as a structural component, also the A and B post area. The sills were also treated as structural and as such make the shell very still but very strong in an impact,
The tunnel is multi cored which stops twist and flex, ( I'm keeping this simple but can give hard data for those who want it, MPA, tensile, sheer etc)
The floor is also cored and has Aramid in it to prevent penetration from under the floor
This has also been done for the doors,
We also use a combination of fabrics to maximise their properties, these are some we used, uni directional 3 weights, biaxles, 2 x 2 tills, plain weave, satin weave, mostly 1200 filliment, various hybrids
We don't want to give to much away of how we made it, But there is no flex in it, in fact it stiffens up the chassis because of the design of the tub area
In short the cf shell is far stronger and safer that the std grff but only weighs 45 kg apx
As an aside, and a change of subject really, I would think that there were more structural gains to be had with a car like the Griff in using CF to laminate and add rigidity to the outrigger/spine structure of the chassis ahead of the shell itself?
jeboa said:
Well, if I had a 'dream sheet', if you could work your CF wonder to produce one of these:
With a Sportmotive Evolution Chassis, and an LS3 (or maybe even a 'Powers Performance' 4.5 SP6.....keep it British....)
...now that would be nice
I guess the tragic thing is, the only way you could do it 'officially' is to start with an original Griffith - but there'd be nothing left in the end.... (just a lot of spare parts for everyone else!)
I still think this is one of the best looking cars that was never made.
I agree its one of the best looking cars out there, we wouldnt have built one if we didnt!With a Sportmotive Evolution Chassis, and an LS3 (or maybe even a 'Powers Performance' 4.5 SP6.....keep it British....)
...now that would be nice
I guess the tragic thing is, the only way you could do it 'officially' is to start with an original Griffith - but there'd be nothing left in the end.... (just a lot of spare parts for everyone else!)
I still think this is one of the best looking cars that was never made.
Edited by jeboa on Monday 17th June 22:35
You can build one from new so you dont have to take an old one apart,with the evo chassis, 430 LS3, and a cf body it comes in at £54,700apx plus the trimming, and we get a new reg on it as it will be sva. But you cant call it a TVR
Our little project
Inner wing rececess for downpipes
Bulkhead modification, brought back 50 mm as engine has moved back and down
Access pannel for pedel box
The brakes !!!!!!!!!!!!!!!
Transporting the shell
The back end, ooooooooooo, i like much
DonkeyApple said:
I agree. If you deliberately use the integrities of CF to strengthen areas then you can probably make good gains. I think what I meant was that if you just laid it up in the same fashion as you would GRP then really all you gain is a thinner and lighter shell where that thinness equates to a relatively equality in structural integrity.
As an aside, and a change of subject really, I would think that there were more structural gains to be had with a car like the Griff in using CF to laminate and add rigidity to the outrigger/spine structure of the chassis ahead of the shell itself?
That is correct, this is what we have done, in theory you could put light wight subframes on this shell and skip the main chassis, but we were not brave enough or rich enough to do it!! must do the old lotto thing again.As an aside, and a change of subject really, I would think that there were more structural gains to be had with a car like the Griff in using CF to laminate and add rigidity to the outrigger/spine structure of the chassis ahead of the shell itself?
our main gain is that we have stiffend up our chassis, nor does it flex under loading, also acceleration and stopping, but the downside of being so light is that you have to have aero or you will end up in a hedge
our original shell was 230 kg apx and this one is 45 kg
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