who does chassis connectors for 3dr's
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They tie the front chassis legs to the rears making the hole shell stiffer with out going the roll cage route and as Martin said basically a glorified scaffold tube !
They are very popular on US muscle cars, both my Dad on his 68 mustang and my Brother on his 67 Barracuda have them fitted to there cars.
They are very popular on US muscle cars, both my Dad on his 68 mustang and my Brother on his 67 Barracuda have them fitted to there cars.
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#10
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Sorry but the shell on most cars is meant to flex , adding bars will stop this and wont this cause problems ???
American cars have a seperate chassie and body tho so a totaly differant thing to a cossie shell
Rally cars dont use this system , neither do modern touring cars , OR DO THEY ???
#11
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Originally Posted by NORTH YORKS RS SPARES
Sorry but the shell on most cars is meant to flex , adding bars will stop this and wont this cause problems ???
American cars have a seperate chassie and body tho so a totaly differant thing to a cossie shell
Rally cars dont use this system , neither do modern touring cars , OR DO THEY ???
#12
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Originally Posted by NORTH YORKS RS SPARES
Sorry but the shell on most cars is meant to flex , adding bars will stop this and wont this cause problems ???
American cars have a seperate chassie and body tho so a totaly differant thing to a cossie shell
Rally cars dont use this system , neither do modern touring cars , OR DO THEY ???
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Originally Posted by NORTH YORKS RS SPARES
Sorry but the shell on most cars is meant to flex , adding bars will stop this and wont this cause problems ???
American cars have a seperate chassie and body tho so a totaly differant thing to a cossie shell
Mustangs etc are built basiclley the same as a sierra EG monocoque construction with a intergrated front and rear chassis linked by a floor pan, so by fitting rame connectors you are basicalley linking the front and rear frames together.
Rally cars dont use this system , neither do modern touring cars , OR DO THEY ???
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Originally Posted by NORTH YORKS RS SPARES
Sorry but the shell on most cars is meant to flex , adding bars will stop this and wont this cause problems ???
American cars have a seperate chassie and body tho so a totaly differant thing to a cossie shell
Rally cars dont use this system , neither do modern touring cars , OR DO THEY ???
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Originally Posted by foreigneRS
Originally Posted by NORTH YORKS RS SPARES
Sorry but the shell on most cars is meant to flex , adding bars will stop this and wont this cause problems ???
American cars have a seperate chassie and body tho so a totaly differant thing to a cossie shell
Rally cars dont use this system , neither do modern touring cars , OR DO THEY ???
Who mentioned SUV"s etc
And here was i thinking that roll cages were just for safety reasons
And i also think you will find that if bodyshells were not designed to flex , they would crack under stress and fall apart , manufacturers spend milions developing shells that yat very strong also flex quite a lot
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Originally Posted by NORTH YORKS RS SPARES
And i also think you will find that if bodyshells were not designed to flex , they would crack under stress and fall apart , manufacturers spend milions developing shells that yat very strong also flex quite a lot
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I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
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Originally Posted by kas 3dr
I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
Oh and they are both about 60 feet away from me in there garages with the mustang being upside down on a rotissery !!!!
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Originally Posted by foreigneRS
Originally Posted by NORTH YORKS RS SPARES
And i also think you will find that if bodyshells were not designed to flex , they would crack under stress and fall apart , manufacturers spend milions developing shells that yat very strong also flex quite a lot
and if you look at all my quotes they have question marks as i was interested in these bars but wasnt realy shure of the benifits as i only have 15 years in the motor trade inc 10 years in vehicle manufacturing industry
Thanks for you help in putting all the chassie issues 100% acurate for me
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Originally Posted by kas 3dr
I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
I watch these programmes and see them lifting the bodywork off most chassies , but not these two tho
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Originally Posted by NORTH YORKS RS SPARES
Originally Posted by kas 3dr
I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
I watch these programmes and see them lifting the bodywork off most chassies , but not these two tho
Most of them will be either pre 64 if Ford or Mopar and around about pre68-69 if it was Chevy. I think thats roughly right anyway
#25
Originally Posted by foreigneRS
Originally Posted by NORTH YORKS RS SPARES
And i also think you will find that if bodyshells were not designed to flex , they would crack under stress and fall apart , manufacturers spend milions developing shells that yat very strong also flex quite a lot
#26
Although my understanding of this stuff is very limited, I didn't think flex was a good thing on circuit.
On set of slicks on my standard road car and much track action DID lead to a cracked bodyshell.
On set of slicks on my standard road car and much track action DID lead to a cracked bodyshell.
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Originally Posted by kas 3dr
Originally Posted by NORTH YORKS RS SPARES
Originally Posted by kas 3dr
I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
I watch these programmes and see them lifting the bodywork off most chassies , but not these two tho
Most of them will be either pre 64 if Ford or Mopar and around about pre68-69 if it was Chevy. I think thats roughly right anyway
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It needs to be stiff in the right places. Ideally all the suspension mounts wouldnt move relative to each other.
Thats how race car chassis are rated, in torsional stiffness.
This way the suspension does its job properly keeping correct wheel geometry.
Thats how race car chassis are rated, in torsional stiffness.
This way the suspension does its job properly keeping correct wheel geometry.
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Please correct me if im wrong , but not alowing a shell to flex would then be just as bad as setting your suspension on the hardest setting
And i read on here so many times that the stiffer the suspension is not the best way and only way to get a car to perform the best ,( i will say that IMO this is 100% correct )
And i read on here so many times that the stiffer the suspension is not the best way and only way to get a car to perform the best ,( i will say that IMO this is 100% correct )
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Originally Posted by NORTH YORKS RS SPARES
Originally Posted by kas 3dr
Originally Posted by NORTH YORKS RS SPARES
Originally Posted by kas 3dr
I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
I watch these programmes and see them lifting the bodywork off most chassies , but not these two tho
Most of them will be either pre 64 if Ford or Mopar and around about pre68-69 if it was Chevy. I think thats roughly right anyway
Ive been brought up around Fast Fords and Yank muscle cars so if I didnt have my 3dr id have some form of muscle car but might be gready and have both within a year or 2
#31
Agreed, but if the shock absorber is designed to act in one plane only, then why would you want it to move side to side for example?
I'm talking about on track here only - I appreciate the suppleness of a chassis to absorb variable surfaces.
I'm talking about on track here only - I appreciate the suppleness of a chassis to absorb variable surfaces.
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Originally Posted by kas 3dr
Originally Posted by NORTH YORKS RS SPARES
Originally Posted by kas 3dr
Originally Posted by NORTH YORKS RS SPARES
Originally Posted by kas 3dr
I think you will find that the american cars that have been mentioned have a seperate chassie
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
HMMMMM no they dont !!!!!!
Like I said before my Dad has got a 68 Mustang and my brother has a 67 Barracuda
And neither of them have a seperate chassis !!!!!!!
I watch these programmes and see them lifting the bodywork off most chassies , but not these two tho
Most of them will be either pre 64 if Ford or Mopar and around about pre68-69 if it was Chevy. I think thats roughly right anyway
Ive been brought up around Fast Fords and Yank muscle cars so if I didnt have my 3dr id have some form of muscle car but might be gready and have both within a year or 2
I would swap my 500"s for a mint example
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Originally Posted by RichardPON
Agreed, but if the shock absorber is designed to act in one plane only, then why would you want it to move side to side for example?
I'm talking about on track here only - I appreciate the suppleness of a chassis to absorb variable surfaces.
I'm talking about on track here only - I appreciate the suppleness of a chassis to absorb variable surfaces.
Problem is you cant just quote " the track" we are talking about flex in all forms of motorsport , and track cars must also flex along with road cars and 100% motorsport cars
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Originally Posted by NORTH YORKS RS SPARES
Please correct me if im wrong , but not alowing a shell to flex would then be just as bad as setting your suspension on the hardest setting
And i read on here so many times that the stiffer the suspension is not the best way and only way to get a car to perform the best ,( i will say that IMO this is 100% correct )
And i read on here so many times that the stiffer the suspension is not the best way and only way to get a car to perform the best ,( i will say that IMO this is 100% correct )
Why would race cars have strut braces etc. (and not the shiny ally ones )
For years all race car chassis had two targets, as light as possible and stiff as possible.
Suspension stiffness is different to chassis stiffness. If the springs are too hard they will stop the dampers from working, thus reducing the amount of contact the tyre has to the surface.
If the suspension is too hard the car would just bounce of small bumps in the surface.
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I fancy a 2door Plymouth Valiant, Looks abit like a 2door mk2 cortina and turn it into a sort of track day car which as its a not a popular car would look kool !
Ps get yourself down to Santa Pod for the European Mopar Nats in july, 3 days of racing and nearly all muscle cars and hot rods !!
Ps get yourself down to Santa Pod for the European Mopar Nats in july, 3 days of racing and nearly all muscle cars and hot rods !!
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Originally Posted by richard_syko
Originally Posted by NORTH YORKS RS SPARES
Please correct me if im wrong , but not alowing a shell to flex would then be just as bad as setting your suspension on the hardest setting
And i read on here so many times that the stiffer the suspension is not the best way and only way to get a car to perform the best ,( i will say that IMO this is 100% correct )
And i read on here so many times that the stiffer the suspension is not the best way and only way to get a car to perform the best ,( i will say that IMO this is 100% correct )
Why would race cars have strut braces etc. (and not the shiny ally ones )
For years all race car chassis had two targets, as light as possible and stiff as possible.
Suspension stiffness is different to chassis stiffness. If the springs are too hard they will stop the dampers from working, thus reducing the amount of contact the tyre has to the surface.
If the suspension is too hard the car would just bounce of small bumps in the surface.
Did you not read Tony"s reply
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Yes and he is right but, vehicle dynamics is a deep subject.
Modern touring cars are under powered (relatively) and FWD, so it has all sorts of design implications.
All cars need some flex even super stiff F1 tubs.
Modern touring cars are under powered (relatively) and FWD, so it has all sorts of design implications.
All cars need some flex even super stiff F1 tubs.
#38
Originally Posted by NORTH YORKS RS SPARES
Richard
Problem is you cant just quote " the track" we are talking about flex in all forms of motorsport , and track cars must also flex along with road cars and 100% motorsport cars
Problem is you cant just quote " the track" we are talking about flex in all forms of motorsport , and track cars must also flex along with road cars and 100% motorsport cars
I would have thought you could have used a term like "the track", as aside from the weather and track temperature, not a lot changes at a set circuit from one day to the next, so why not consider the surface a constant?
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To Be honest fellas we could talk about this all night , but as said Vehicle dynamics is a massive subject and i doubt we will sort all the issues tonight
Good topic tho ( if we had months to talk about it )
I would like to see these bars tho as i think they may be a good adittion to a rotting old ford shell
Good topic tho ( if we had months to talk about it )
I would like to see these bars tho as i think they may be a good adittion to a rotting old ford shell