Landracing Forum
El Mirage => El Mirage Rules Questions => Topic started by: RIFLEMAN on September 19, 2009, 08:19:07 PM
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Hear that vehicles running an electric fuel pump are going to be required to fit an inertia switch to kill the pump in the event of a crash. What my question is:will the OEM 'tip over' switch found in most of the late model bikes pass as an inertia switch?
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http://www.landracing.com/forum/index.php/topic,5080.0.html (http://www.landracing.com/forum/index.php/topic,5080.0.html)
Dan Warner "recommended" the Ford switch, available at most wrecking yards for a couple bucks.
Mike
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Does this rule affect bike as well?
Scott
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motorcycle streamliner 7.H.1 all electronic fuel systems shall have an inertial shutoff switch by jan 1 2010 willie buchta
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Panic, old buddy, you just demonstrated how ALL rules should be written.
The SCTA rule book is full of massive holes that are interpreted after the fact, after you spent a ton of money and put it in impound, to be told "that's not what the rule means".
The inertia switch is so that this doesn't continue to get fuel once you bail off.
(http://photos.imageevent.com/motorbiker/newspics3/Colin-Edwards-Fire-1.jpg)
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:?
Ya know,all this hubris and still no answer to my original question:will the OEM tip over switch be viewed as complying with this rule? Its actually a very simple question only requiring a monosyllibic answer.
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:cheers: Dam ed if I know! (multisyllibic answer.} Howdy ya'll Crow.
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Rifleman:
I don't know for sure -- but I presume you're asking if there's a requirement for such a switch on (all) motorcycles. The responses seem to have clarified the point for motorcycle streamliners - but not necessarily for sit-on bikes of any type.
And there have been responses that imply they are required on cars -- but it's not perfectly clear that that's the case.
I don't have a rulebook with me this morning so won't attempt to respond. But -- just for the sake of the confusion among the others out there on the Forum -- you're asking about sit-on bikes, right?
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Rifleman:
I don't know for sure -- but I presume you're asking if there's a requirement for such a switch on (all) motorcycles. The responses seem to have clarified the point for motorcycle streamliners - but not necessarily for sit-on bikes of any type.
And there have been responses that imply they are required on cars -- but it's not perfectly clear that that's the case.
I don't have a rulebook with me this morning so won't attempt to respond. But -- just for the sake of the confusion among the others out there on the Forum -- you're asking about sit-on bikes, right?
Yessir,and I figure from what everybody is saying,the point is moot when the subject is sit -on bikes,BUT won't surprise me if eventually sit-ons and 'normal' cars are going to need to be fitted in the future. I'm a bit concerned about the Ford switch ,cause I got my Crown Vic airborne one time(don't ask) and the landing should have tripped it and didn't. Hate to think we'll end up with a piece of safety equipment that we THINK will work and find out that it doesn't always.
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i think the reason you arnt getting one is because---you asked the wrong question --i tried to explain it in a previous post---the only motorcycles that will be required to have a tip over switch in jan 2010 are streamliners and sidecar streamliners--that is the rule book now there will be a new one out before may 2010---i have a set on bike do i need a tipover switch? NO ---- but if your lanyard that kills the ignition does not cut off the fuel pump you will need another lanyard to do that also willie buchta
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i think the reason you arnt getting one is because---you asked the wrong question --i tried to explain it in a previous post---the only motorcycles that will be required to have a tip over switch in jan 2010 are streamliners and sidecar streamliners--that is the rule book now there will be a new one out before may 2010---i have a set on bike do i need a tipover switch? NO ---- but if your lanyard that kills the ignition does not cut off the fuel pump you will need another lanyard to do that also willie buchta
Thanks Willie,I know about the lanyards and get it. And I get what the new standard currently covers,just askin' my "wrong" question because its not unfathonable that the switch ends up being required across the board down the line. my question really isn't wrong,its pre-emptive. :-D
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:cheers: Dam ed if I know! (multisyllibic answer.} Howdy ya'll Crow.
Good one Crow! Howzit? You at EM in Oct? :cheers:
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i dont think anyone here can see what will happen to the rules in 2010---usually the rules dont change to much unless there is a safety issue---the rules kind of evolve---if you had a lanyard on your ignition and on the fuel pump ( or one that took care of both ) i would think that a tip over switch would be unecessary--the reason its done on the streamliners is because you would be inside the bike and although you would need a ignition and fuel shutoff ---a lanyard wouldnt do you much good-- just some thoughts willie buchta
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A tip over switch and an inertia switch are not the same thing.
If the tip over switch will reset then probably no.
An inertia switch detects a low level of collision and must be manually reset.
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the tip over switch is only required on motorcycles with parachutes--it is used to deploy the chute in a tip over situation--not required on a set on bike -- 7.H.13. ------------------willie buchta
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:cheers: Rifleman. Yup, in Oct. Missed this month cause I had to re'coup from Bonneville, biut, I CAN'T DO IT any longer! Will see you in Oct. and Nov. Lookin forward to the time! Crow.
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It would seem like M/C's would have a lanyard type switch on an HP electric pump.
Inertia switchs were normally designed for rear end collisions and not much else. So if your car is flying through air and does not land on its tail it may not work. Side collisions are also questionable at best for its actuation. Your best bet will be a "dumb luck" when your push truck drive bumps you hard and actuates on your back up record run or after you waited 3 hours to run and only get 100 yards.
Personally I don't like the rule for low pressure electric pump systems. The manufactures had to, or were required to, come up with something when standard vehicles started having 70 psi systems.
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Is there one that works with CNG or propane?
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There are inline devices for gases that will stop flow when a line ruptures, at least for natural gas. Don't know a lot about them though. They aren't expensive, but do not know if they work for automotive purposes.