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Why does fire come out of the exhaust?

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Old 08-12-2002, 07:54 AM   #1
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Why does fire come out of the exhaust?

Last night, while driving back on 465 South in Indy, a dark grey fully modded IS300 with touring wing, full body kit etc... comes flying by me. So, naturally, I gave chace . But as we hit the staight away and both of hit about 130mph, a blue flame came out of his exhaust! Why did that happen??

btw, finally hit 140mph (wohoo) with my 18's!
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Old 08-12-2002, 08:22 AM   #2
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Re: Why does fire come out of the exhaust?

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Originally posted by Str8ridin
But as we hit the staight away and both of hit about 130mph, a blue flame came out of his exhaust! Why did that happen??
He's running to rich, unburnt gas was in his exhaust system, his car back-fired, you saw the flame come from his tail pipe.
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Old 08-12-2002, 08:23 AM   #3
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U can buy a kit that allows you to do this. All you need is something near the end of the exhaust to make a spark.
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Old 08-12-2002, 10:58 AM   #4
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140 mph wow. and fire in his exhaust? doesnt seem like his car is on par
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Old 08-12-2002, 06:22 PM   #5
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Re: Why does fire come out of the exhaust?

Quote:
Originally posted by Str8ridin
Last night, while driving back on 465 South in Indy, a dark grey fully modded IS300 with touring wing, full body kit etc... comes flying by me. So, naturally, I gave chace . But as we hit the staight away and both of hit about 130mph, a blue flame came out of his exhaust! Why did that happen??

btw, finally hit 140mph (wohoo) with my 18's!
This is the same car that I raced against last week. Grey IS300 with "STR" emblem in the rear! That car is a BEAST. I don't remember it having a body kit, but I do remember it had super wide rims in the rear! Did you talk to him, ask him about what he has under that hood. I bet he is boosted!

...This is assuming it is the same car that I raced.
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Old 08-12-2002, 07:09 PM   #6
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He's probably boosted. I've seen many race cars like Le Mans cars shoot flame from the exhaust, and I think most of them are turboed. Or, if you have terrible timing or a malfunctioning spark plug, the unburned fuel might get ignighted in you exhaust, shooting a flame out.
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Old 08-12-2002, 07:25 PM   #7
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dashingmax did you win?
if he was turbo'ed backfiring would help keep him spooled i believe
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Old 08-12-2002, 09:08 PM   #8
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i might look like a tard.... but with the flame coming out, theres no chance of it going back to the engine, or in anyway starting the car on fire somehow?

:dunno: I think it looks neat... it doesn't look neat if some cheap car is doing it for the hell of it though... :rice:

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Old 08-12-2002, 10:03 PM   #9
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Wonder what happens when he leaves the gas station...
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Old 08-12-2002, 10:11 PM   #10
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Unburned gasoline meets fresh oxygen = flame.
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Old 08-13-2002, 08:43 AM   #11
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Quote:
Originally posted by sil SE
dashingmax did you win?
if he was turbo'ed backfiring would help keep him spooled i believe
Unfortunately NO...
Let's face it,
atleast 7-8 psi boosted Turbo +
on a Supra engine +
superwide tires +
rear wheel drive car
cannot be beat by a front wheel drive, stock rims/tires, granny shifting, choking exhaust, supercharged Maxima.
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