Re: [Amc-list] 1970 brake specs?

[Tom Jennings <tomj@xxxxxxx>]

On Sat, 24 Feb 2007, Archimedes wrote:

> By the way, a lot of the diddling with the brakes was driven by trying to
> comply with (unfunded) federal mandates.  The feds began issuing
> regulations on brakes (and quite a few other things) beginning in
> 1970.  The regs often carried specs that changed every year (which I am
> certain really frazzled the engineers).

Well that would help explain the unexplainable!

Thanks for the info.


> Many of them made little sense.
>
> For instance, any moron can tell you that a brake system tuned to stop the
> car efficiently under full rated load (four people, the family dog, and two
> hundred pounds of luggage plus the beer cooler) is going to be a lot less
> efficient under normal load (one driver going to work every day).  It was
> for this reason that almost all cars (especially smaller ones) in the late
> seventies and early eighties had serious problems with severe rear-wheel
> lockup.

Yeah, legislation controlling the physics of weight transfer
during braking would fix that!


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