Re: Review of new AMC references!

[Matt Haas <mhaas@xxxxxxx>]

Some of the power reductions were also from increased use of emissions 
control devices (and the beginning of engine de-tuning, both for emissions 
and insurance reasons) but 1971 was the year when engine ratings went from 
SAE Gross (basically a naked engine -- just like most enthusiast type dyno 
tests are run today) to SAE Net (typical accessories installed and some of 
the exhaust system). Also, this year saw an additional change to the SAE 
net ratings that caused some manufacturers power ratings drop (I'm pretty 
sure Honda's dropped and maybe Toyota's) and others (I think Ford and maybe 
GM) rise. No power was really gained or lost, the testing procedure  was 
changed to be more "real word".

Matt

At 06:19 PM 12/23/2005 -0500, you wrote:
> " From: farna@xxxxxxx
> "
> " There's a mention in 1971 that "...government
> " regulations on horsepower ratings caused them to tumble down sharply." Is
> " this even an avid car hobbyist? Government regulations had little to do
> " with the power ratings - there was a change in the way power was rated
> " by the SAE, not the government.
>
> i always thought it was the govt that caused the sae to change their
> rating method.
> ________________________________________________________________________
> Andrew Hay                                  the genius nature
> internet rambler                            is to see what all have seen
> adh@xxxxxxxxxxxxxxxxx                       and think what none thought

mhaas@xxxxxxx
Cincinnati, OH
http://www.mattsoldcars.com
1967 Rambler American wagon
1968 Rambler American sedan
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