List,
I would highly recommend that you wire-up the switch on the positive side of the
battery.The problem with the negative side is if you run an alternator, the
motor may still run ( had it happen ). NHRA tech inspectors are instructed to
have the contestant start the car and he will shut off the switch...if it
continues to run, your out of there. When I ran a Rear-engined Supercomp car, I
had the battery mounted behind the seat with the shut-off mounted on the battery
box. I used a Morse cable that ran to the rear of the car under the parachute
pack. The handle was labeled "push-off " to help the track safety people know
how to shut-down my power system. I wouldn't want someone having to look for the
SWITCH in an emergency stituation.
My .02 worth,
joe
Dan Warner wrote:
> The switch is not required until 12/31/2000, this gives you a year (approx.)
> to desigin and locate the switch. The rule does not specifically locate the
> switch because of the eclectic mix of vehicles we run. The remark by Dave
> Dahlgren that the switch should be close to the source sounds like good
> sense to me.
>
> Dan W
> ----- Original Message -----
> From: David Haller <dhaller@techline.com>
> To: Dan Warner <dwarner@electrorent.com>
> Sent: Monday, February 07, 2000 6:54 AM
> Subject: Re: cut-off switch
>
> > Hey Dan,
> > Is there a new requirement for an outside cutoff switch, I haven't got the
> > 2000 rule book yet,
> > Thanks,
> > Dave Haller #93
> > The guy who has Don Duerkson's old car. Good to have met you at the World
> > Finals and thanks for the tip on the spoiler.
> > ----- Original Message -----
> > From: Dan Warner <dwarner@electrorent.com>
> > To: Gary/Ellen Wilkinson <dan.w@mindspring.com>
> > Cc: <land-speed@autox.team.net>
> > Sent: Monday, February 07, 2000 5:37 AM
> > Subject: Re: cut-off switch
> >
> >
> > > The disconnect switch MUST be accessible in any attitude the vehicle may
> > > come to rest in. If behind a door or panel might not be the best idea.
> > NHRA
> > > style at the rear of the vehicle is good. The electrical system may have
> > > more than 1 ground, I think disconnecting the + side would be best. If
> you
> > > ask a tech head you could probably get a better answer than from me.
> I'll
> > > bet the list has any number of ideas on how to accomplish this deal.
> > >
> > > Dan W
> > > ----- Original Message -----
> > > From: Gary/Ellen Wilkinson <dan.w@mindspring.com>
> > > To: list <land-speed@autox.team.net>
> > > Sent: Friday, February 04, 2000 10:57 PM
> > > Subject: cut-off switch
> > >
> > >
> > > > attn: Dan Warner,
> > > > A couple of questions about the new battery disconnect switch, see
> > III-11.
> > > > Can the switch be located under or behind a clearly marked access
> door?
> > > > Can the switch be operated remotely by a clearly marked push/pull
> lever,
> > > rod
> > > > or cable?
> > > > I assume the disconnect switch should be in the + battery cable.
> > > > Thanks for your help and response.
> > > > Gary & Ellen Wilkinson
> > > > Utah Salt Flats Racing Association
> > > >
> > >
> >
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