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Failed OEM FPR and fuel fire - sad day.

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Old Mar 6, 2019 | 05:07 AM
  #1  
mx5-kiwi's Avatar
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Default Failed OEM FPR and fuel fire - sad day.

After many races the OEM FPR cracked and leaked (poured) fuel through engine bay.

In hindsite we had a bit much stress on it with the AN fittings and the non flexible braided hose. Even at 345 whp we had no issues with fueling but will be going to a proper aftermarket unit from now on.

Was a very lucky escape for the car. Incredible that fire crew arrived so quick but car was on fire for over half a lap prior so they chucked a red flag out as I started coasting.

Even that small amount of smoke was incredibly toxic and have a burning throat 3 days later. I am sure 10-20 secs more would have had me in a bad way.

Also interesting to note the brakes failed from the heat. Pedal went straight to the floor. I had presumed a hose had melted at the time but brakes work fine again now, so fire heat temporarily killed them.

://www.youtube.com/watch?v=05Q-l4im8tg&t=&fbclid=IwAR1T_o1i3ZpfHHivGHuPx62nZhyUIqffRmyUMLjDF-FH7JBetavrG_q_CHc
Old Mar 6, 2019 | 08:39 AM
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Glad you made it out safely. Hopefully the car isn't damaged too badly. I know faulty FPR are the cause of many FD fires (though I think they may just have pulsation dampener, but same concept). Its incidents like this that make glad that a on-board fire system is at the top of my lists for my track build.
Old Mar 6, 2019 | 08:48 AM
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Glad you got out safe. I'm saddened about the situation :(

It's terrifying that it started happening in an area with little pull off options

Last edited by psyber_0ptix; Mar 6, 2019 at 09:11 AM.
Old Mar 6, 2019 | 09:09 AM
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Old Mar 6, 2019 | 09:23 AM
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Glad you made it out. I literally just ordered a fire extinguisher. One of my clients I built a S2000 for is coming back to me due to a little fire getting wild out of hand.
Old Mar 6, 2019 | 10:15 AM
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Whoa. Good to hear you’re OK.
Old Mar 6, 2019 | 11:11 AM
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Crazy! Glad your safe
Old Mar 6, 2019 | 11:52 AM
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Stress level is high in that video. Think ill buy an extinguisher today.
Old Mar 6, 2019 | 11:59 AM
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Originally Posted by matrussell122
Stress level is high in that video. Think ill buy an extinguisher today.
Better yet, buy a suppression system! AFFF (or AR-AFFF) systems are cheap, and they are not hard to set up in the trunk, even for a street car with full interior.
Old Mar 6, 2019 | 12:47 PM
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Sorry to see one of the cleanest, nicest laid out engine bay's get trashed like this. Like other's say, a plumbed in Halon, or equivalent fire system can be done for $500. and adds a big load of comfort while on the track. Best wishes while you clean her up!
Old Mar 6, 2019 | 01:14 PM
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Cheers guys. i'll add a before and after engine bay shot later on.

Though I wouldn't argue against a supression system, Im not so sure one would have worked in this case as the fuel just kept coming. Even after I turned the key off.

It was only that the water cooled evrything down enough to stop the self combustion process.

It wasn't until I thought to also unscrew the fuel cap that the fuel flow actually stopped.


Anyway, I posted as reminder of what can happen but also it showed that my previous "what do i do in a fire situation" pre planning paid off (apart from forgetting the ignition which was/is still a bit embarrassing).

Though it didn't help in this case, I still think getting to a fire point is one of the critical ones, so knowing where they are before hand is important.

Practicing getting out with the extinguiser etc.

The big and scarey thing was the smoke, long before I stopped I had to wind down the other window as it was already getting to be a problem.
Old Mar 6, 2019 | 01:22 PM
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Wow I guess I should have watched Adam's video link all the way to the end, sorry to see this but most of all glad you are ok and will rebuild!
Old Mar 6, 2019 | 01:30 PM
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From my experience (firefighter) water isnt very good to put on that kind of fire. When putting water on a fuel fire it spreads it around. Water is good on class a fires which are wood and foam. However a fire suppression system using a halon bottle is good for class b and class c fires (your was class b) which would have put it out rather quick.


Edit: Also looks like their hose is attached to their truck. They really should have some sort of class b foam on board for situations just like this.
Old Mar 6, 2019 | 02:04 PM
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They probably do have foam but the water put it out very quickly in this case.

Cooling the engine parts around the fuel seemed to do the trick.
Old Mar 6, 2019 | 02:31 PM
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Note to self, do not connect rigid lines to moving engine.
Old Mar 6, 2019 | 02:44 PM
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Not sure what that means, we had 20cm of braided fuel line to in and out.

Was probably just not flexible enough.
Old Mar 6, 2019 | 04:11 PM
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I'm not a big fan of steel braided lines.

20cm is only about 8in so I can guess how stiff it might be.

I'm glad you survived. That's the most important thing.
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