Making alloca more safe

[BCS]

Hello Walter,

> BCS wrote:
> 
>>> With the pump shut off, you have a few seconds of fuel left in the
>>> carb. With no oil pressure, your engine is going to seize anyway.
>>> 
>> In a few minutes yes (and it will still run for some time after it's
>> damaged beyond repair), more than long enough off get off the road.
>> I'd put a big buzzer in and let the driver decide when it is safe to
>> shut down the engine. In some situations, I'd gladly cook the engine
>> to get to safety.
>> 
> There is an override on the switch to turn the pump on anyway, but
> it's a push button you have to hold down.
> 

your driving down the road talking about programing language design and suddenly 
an 18 wheeler starts tail gateing and another pulls out to pass. In the middle 
of that, your engine starts to splutter, something it has never done before. 
What is your reaction? I'll give 10:1 that it takes you a few seconds to 
recognize that the fuel has been cut, remember that there is a switch to 
override it, find said switch and push it. Now add in that you didn't install 
the switch (it comes standard) and you have never taking the manual out of 
shrink wrap. You starting to see why it will never come standard.

>> So tie it into the inition system or a tilt switch (some 4x4 do that
>> one).
>> 
> It is tied to the ignition system already. The problem is, the
> ignition doesn't automatically turn off when you crash your car.
> 

Yes the ignition (as the the key) doesn't turn off but when the engine quits 
running the ignition system (as in the magneto or that block of epoxy and 
silicon under the hood) quits triggering the spark. Tie into that.

> If you race cars, you are required to install a battery cutoff switch
> on the outside in an obvious location. This is so emergency personnel
> running up to save your a** can shut off the power first thing so no
> spark or whatever will set things on fire.
> 
> I have a quick disconnect on my battery. Whenever I work on the car,
> the first thing is always to disconnect it.
>