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Fire system question (Read 4,236 times)

ToddMorin

Spectator

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Spec Miata

Posts: 30

Fire system question
Mar 27^th, 2013 at 1:47pm

I've just mounted my bottle in the trunk of my car, and am planning to run a single line down the car, along the driver side floor. I will then be put a 3-way connector somewhere near the firewall, splitting the line for the cockpit and engine bay.

Is this a good idea, or should I have the 3 way connector at the bottle, and run two lines instead of one. Every diagram I see shows the 3 way connector at the bottle, so I'm not sure if there are rules of fluid dynamics I'm not aware of (2 lines = better flow?). Does anyone have experience with this?

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ToddMorin Spectator Offline Spec Miata Posts: 30	Re: Fire system question Reply #1 - Mar 27^th, 2013 at 1:56pm Here's a picture of what I mean.
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Mike_the_Oldest International License Offline Posts: 857 B.C.	Re: Fire system question Reply #2 - Mar 27^th, 2013 at 2:44pm I believe you're on the right track. Having said that, you may wish to consult the people who sold you this equipment. They may have some input that's worthwhile considering.
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Mike_the_Oldest

International License

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Posts: 857
B.C.

Re: Fire system question
Reply #3 - Mar 28^th, 2013 at 7:16am

I went away and slept on this and have a suggestion. If you have a total of four nozzles available it would likely be wise to have one in the compartment containing the fuel cell, one in the driver's compartment and two in the engine bay.

What type of suppression are you using? AFFF (my preferred) or halon?

If you want to contact me directly use my home e-mail address

michael_currie@telus.net

Mike

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ToddMorin Spectator Offline Spec Miata Posts: 30	Re: Fire system question Reply #4 - Mar 28^th, 2013 at 8:31am Ya, it's an 4.25 liter OMP AFFF system. It come with 6 nozzles, but I'm hesitant to put one so far away from the other nozzles (don't know if it'll lower the pressure too much, too early). I was thinking of adding one near the shifter, in case this happens: http://youtu.be/ww9cFE3lKcA
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Doodson

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Doodson

Posts: 1,684
BC , Canada

Re: Fire system question
Reply #5 - Mar 28^th, 2013 at 9:49am

I have only three fire bottle nozzles, One on the fuel cell , One on Me, and One in the engine bay

I understand putting one nozzle on ME but not two . Here is my logic , The fire system need to be activated so this means you are probably capable of getting out of the car. The one spraying on me is just going to give me a few more seconds to get out .

The more nozzles you put in the faster the bottle will drain I would rather have fewer nozzles and let them spray for a bit longer

Just my 2 cents

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TECHMAN Senior Racer Offline Road racing, not street racing! It's safer Posts: 166	Re: Fire system question Reply #6 - Mar 28^th, 2013 at 11:24am From the 2013 SCCA GCR: 4. There shall be a minimum of two nozzle locations–one in the driver’s compartment and one in either the engine area or the fuel cell area. The nozzles shall be suitable for the type of extinguishing agent used. I would think that this is the minimum that you should shoot for.
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