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Chassis question about passinger cell
Rhys aka Celtic Tools - 27/12/07 at 11:37 PM

Does any on know about any rules or regs (sva) about the the distance that your feet need to be behind the front axle line
many thanks
Rhys


Mr Whippy - 27/12/07 at 11:52 PM

what makes you think there is such a rule?

[Edited on 27/12/07 by Mr Whippy]


Rhys aka Celtic Tools - 28/12/07 at 12:09 AM

quote:
Originally posted by Mr Whippy
what makes you think there is such a rule?

[Edited on 27/12/07 by Mr Whippy]


just because if you crash and your feet are close to the front of the car it might not be safe
as my car has the engine at the rear and there is nothing beyond the pedal box apart from a space between the front of the nose cone

(no rad cos im using a air cooled engine)


Mr Whippy - 28/12/07 at 12:19 AM

Take the car in my avatar for example, the nose cone is the main structure that would absorb the impact. Even is the wheels were further forwards they would most likely just rip off doing little if anything in a crash.

I would say that if you are to have a nose cone build it so it absorbs damage like a bumper i.e. make it out a large foam block skinned with glass fiber and have a thick ally panel in front of you feet. Things like that are much more important than where the wheels are.




[Edited on 28/12/07 by Mr Whippy]


Rhys aka Celtic Tools - 28/12/07 at 12:24 AM

cheers for the reply I will incorporate the nosecone / bumper idea into my build

ta

Rhys


Simon - 28/12/07 at 01:09 AM

Or if Mr Whippy's car is clouted on a front wheel, said wheel will follow a rearward arc until it stops somewhere on the other side of his knees

If we worry about everything, nothing will get done! You just have to make it stronger.

I quite like the Pink Panther car meself, and ones legs ARE the crumple zone.

ATB

Simon


skodaman - 28/12/07 at 02:01 AM

Also the nosecone on Mr Whippy's car has been crash-tested to much higher levels than road cars need. I think it's supposed to have a red five on the front though.


nitram38 - 28/12/07 at 03:41 AM

The rule you talk of only applies to motorsport.
After a certain year, single seaters like formula fords had to have the wheel centre line beyond the front pedal bulkhead.
If you check my archive, you can see some bare chassis pics of the F1-2 I built.
It is up to you, but I personally followed the motorsport rule for my own safety.


caber - 28/12/07 at 09:19 AM

Whatever you d and wherever your feet re it is still damn sight safer than sitting on top of a motorcycle!

Caber


russbost - 28/12/07 at 10:17 AM

There is a bit in the manual somewhere which basically says that if your feet are in front of the axle line then there must be some form of deformable/crushable structure forward of this - the inspection of which would be down to the individual tester & as we all know they are all degree qualified mechanical engineers.


Doug68 - 28/12/07 at 11:14 AM

quote:
Originally posted by caber
Whatever you d and wherever your feet re it is still damn sight safer than sitting on top of a motorcycle!

Caber


Rubbish! Do you have any evidence at all to back up this assertion? I suspect if you controlled for age & experience I doubt there'd be little if any difference in the injury rates between the two groups.


Mr Whippy - 28/12/07 at 03:41 PM

quote:
Originally posted by Doug68
quote:
Originally posted by caber
Whatever you d and wherever your feet re it is still damn sight safer than sitting on top of a motorcycle!

Caber


Rubbish! Do you have any evidence at all to back up this assertion? I suspect if you controlled for age & experience I doubt there'd be little if any difference in the injury rates between the two groups.



quite right! , everyone knows you land on your head in a bike crash, your feet are fine