Battery Disconnect Master Switch
 

Does anyone have pics of their battery switch out of the back of the car as needed for some sanctioning bodies?

um if you dont know how to do it then maybe you should pick a dif class. As for placement most come through the middle of the trunk backing or you could come out by the antenna hole as well.

Thankyou maam, but did I ask how to do it? Sorry if I don't have 6k+ posts, but that doesn't mean I'm a retard. I simply asked for pictures so I could decide what would look the best on my street car that runs 10.70s. If you don't welcome new members just let me know and I'll go back to miata net.

If you don't run a radio anymore, run it out the antenna hole. That is where I have mine.

dont get a sandy vagina dude i told you to put it in the antenna hole or the rear finish panel just cause i dont have pics doesnt mean i wasnt helpfull. Not alot of serius drag racers over here who would have pics so our description is about as good as it is gonna get.

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Wow can I see your time slip?! And seriously, the battery on/off switch can go anywhere in the car, but it sort of makes sense to put it close to the battery. So just drill a hole in the side of the car where the battery is and put a moroso switch in there. Easy.

Here is the time slip and a link to the video of that pass. YouTube - 10 70@133 V8 Miata I didn't mean to cause trouble I just didn't need any :hustler: for an honest question. I figured this forum would be a better place to ask "racing" type questions and learn more about our cars' capabilities. I need to do more NHRA safety mods to keep running that fast so instead of reinventing the wheel I might steal some of your ideas. Some of the rules are the same between for instance SCCA and NHRA with minor differences. The engine conversions section on miata net is very helpfull, but the rest of the forums don't like out of the box thinking much. Are there many street strip cars here on the board?

Consider this notice that we don't welcome new members, then. :hustler:

nah man the majority wont even get into 12's and maybe a hand full will venture to 11's or less. But yeah man the antenna is the best place unless you would wanna french it in place on the rear finish panel, i think i saw someone do it through a turn signal housing once but that wouldnt be very safe or legal imo. that car in the right lane musta been overpowering the track or something his mph is pretty damn high compared to yours.

Your 60' time is ridiculous, best I've had mine is 1.9, but I'm not running crazy power. This forum is infinitely better then m.net for modification etc, but you have to get used to how it runs first.

His car was the car on the right ;)

i was going from the data on the slip it didnt dawn on me till i watched the video what a tard i was. And he was overpowering the track. Like we all should kudos man.

Yeah, big props on what you have done with the car, OP! Not my cup o tea any more, but that is still very impressive.

http://i295.photobucket.com/albums/m...8/IMG_0308.jpg

Question is though... is the requirement a battery disconnect or a Real kill switch that cuts alternator and battery.

Thanks for the compliments and the picture. The switch has to kill the battery, alternator, and engine. So the + off of the altrnator needs to run to the battery side of the switch. The other option would be a 4 prong switch, but ultimately it would accomplish the same thing. Thanks again.

Most of the drag guys mount them on the outside, so in our case antenna hole or rear finish panel. Personally I would prefer to have it on the inside - since you are the first person at the scene every time. ;)

We put the kill switch on the passenger vertical bar of the main hoop on all of our cars at work, but I have also seen them in the left eyeball vent hole of the dash. Same idea, only downfall being if you end up laying on that side of the car, the switch is covered. Don't really remember what NHRA requires - I haven't even dragged in almost a year :( but just throwing those out there.

Hey scot this guy needs a avatar pic of his motor or someshit so we dont mistake him for a newb at first glance any more

Bad ass car man! Might I ask what your rear end and rear suspension setup is? I just noticed how it came off the line and how there was no drop in the rear, and of course the 1.6 60'.

So the next thing he needs to work on is his reaction time...

Or put two master switches in series; one inside, one out back.

- L

Wow......really, that car is fucking sick. Nicely done man :bigtu:

What kind of wheels are those and what size?

NHRA requires that the switch be mounted on the rear of the vehicle on the outside. In the event of a crash, and the driver is unabled, rescue personel can turn the car off. Drag cars often have very high flow electric fuel pumps that can feed a fire even if the car is not running. It may be illegal per NHRA rules to mount it in the antenna hole.

Was a pic of the motor posted?

Until then, I've put up his time. Ought to suffice for now.

yeah that works TY joe

We were working on following a different sanctioning bodys rules so we put ours in the car. I kinda like the idea of being able to reach it from driver seat.


I don't know what motor you have in there but on ours, I moved the power wire to that went to the alt to the starter than ran a wire from the switched side of the battery switch to the alt. So when switch is off it cuts alt and battery feed to front of car. Single pole switch.

PS: had 2 "taylor" switched fail, went with a Summit hi-amp one for $30 not problems.

7.5" Ford Rear, KYB AGX all the way around, cheap ebay adjustable coil overs with 400lb springs in the rear, up front I have rear 87 escort wagon springs. 225-45-17 BFG Drag Radials

The car is such a handfull off the line that I have just been ignoring the lights and concentrating on my launch. I figure once I get the launch perfected I can start worrying about the lights.

Thanks, those are Eagle Aloys, I think the number of them is 192. They are 17" in the rear and 15" up front.

Quite understandable...

- L

The battery kill switch is only required for pro racing /course driving. You don't need one if you're attending a PDX or Race Day course event where street cars are allowed. If you are required to have a kill switch you will also be required to have a full roll cage, race type seat with a 6 point harness, fire system and window netting. These are required for Spec Miata drivers etc. You also must attend drivers schools and have a pro license such as SCCA, NASA etc.

you are most certianly correct but NHRA drag racing etc sets rules like this on ET's and he definatley needs a kill switch and everything else to be allowed to run that fast continously.