Yeah
i was watching speedvision last night and they where featuring a race with v8 supercars, fords and one more make which i cant remember. The cool things was that those car i beleieve had exausts in the bottom of the sides in the cars, shooting out flames, not little either, big ones, it looked so cool!!

And im wondering whats the purpose of this and how is this possible, is this doable for a civic mod?

Thanks for any help

small puffs of flames is usually due to engine backfire, or a hot exhaust recombusting any unburnt fuel that passes out the exhaust, common on turbo motors.

large flames are due to some guy showboating by running a rich mixture and installing a sparkplug in the tailpipe to ignite the mix for dramatic, yet useless, effect

i think you got it wrong, this wasnt streetracing, this was trackracing, so this had a purpose, as every car was doing this

Originally posted by markpa
i think you got it wrong, this wasnt streetracing, this was trackracing, so this had a purpose, as every car was doing this

if you read the first part of drift's post, he explains the real reason why these high HP cars do this.

You also see it alot on Rally cars. The culprit is a small device that sets off many small explosions in the exhuast tract before the turbo. The idea is to keep the turbo spooled when you let off the gas, which is why you see it flame out when they slow down to enter a corner. The by-product of this device are the flames that sometimes escape the exhuast pipes.

On funny cars and dragsters, you'll see a lot of flames come out the side, basically because its the header coming right out the side of the car

thanks guys,
so it really is no benefits other then looking cool, doing this to a civic?

Originally posted by CivicEx95
On funny cars and dragsters, you'll see a lot of flames come out the side, basically because its the header coming right out the side of the car

and funny cars run on nitro glyscerin and a lot of it.

I have seen kits on groupbuycenter that do this for you on a street car but it is pointless

Originally posted by SikB


and funny cars run on nitro glyscerin and a lot of it.



wrong.

some run on alcohol. but i believe you're trying to say "nitromethane", not nitro glycerin. nitro glycerin is for patients with heart palpitations.

it's also the key ingredient of dynamite, TNT. NitroMethane is right, & after they adjust the mixture, better stand back - it'll burn your eyes & make you look like Niagara Falls.

Actualy TNT stands for TriNitroToluene and is a key ingrediant in many explosives. In its refined powder form, TNT, is what you call dynamite.

End Geek Moment.

that motorace u saw was a Australia V8 supercar race...those are all mainly Ford Vs Holdens and Holdens are Australian made cars running on big GM V8 engines...so those flames u see blowing out of those 600hp+ V8 cars are from you american V8 GM muscle car engines..:D

I've never had problems with nitromethane. I'm around that stuff all the time. And I mean close!!!!!!!!!!

what about this device before a turbo that sets off explosions? what are you talking about? if you set off a small "explosion" in front of a turbo, you would suck a flame into the motor and blow the top off.

the reason a turbo shoots flames out the side is b/c it has a blowoff valve, which is raw exh gas coming out, which then combusts itself like drift said.

so what is happening on the supercars is a basic straight exhaust with a very raw a/f mix and no catalytic converters...

catalytic converters produce "light off" with exh gas also, so you have some little flames in there, but not as far back, b/c all the rich parts of the exh gas that can burn are burnt by the time you hit the muffler and tip...

the flames are mainly when the cars decelerate also, which is when your foot comes off the gas, creating a vacuum from the exh that sucks the a/f mix out before being burnt, (not all, but some) this burns off in the exh, and with sucha short exh pipe, that is why it is shootin flames... same with a turbo blowoff valve... if it is not recirculated into the exh pipe/downpipe.

i still wanna know about that "DEVICE" though... interesting...

Originally posted by flylwsi
what about this device before a turbo that sets off explosions? what are you talking about? if you set off a small "explosion" in front of a turbo, you would suck a flame into the motor and blow the top off.



Its exactly what he described. While the driver is off the throttle they ignite some fuel in the exhaust in order to keep enough gasses flowing though the turbo in order to keep it spooled up, so when the driver gets back on the throttle there is no lag. Its called an anti-lag turbo. Works pretty well, but is very loud.

ah...

i was under the assumption that he meant in front on the intake side, not exh side... that is why those fuckers pop so hard in corners... i see... it just didnt make sense... does now. thanks

This isn't really an answer but I'm putting a V8 in my 93 twin turbo RX7 and will be having flames come out the sides. Well, it's going to be 500hp NA and the a 200 shot of Nitrous. I'm going to hook up a spark plug on each side and have them ignite when I'm spraying. I'll be running with nitrous pretty rich so my flames will be nice and long. Just thought I'd share since we're on the subject

I know you aren't serious
I'm putting a V8 in my 93 twin turbo RX7 and will be having flames come out the sides. Well, it's going to be 500hp NA and the a 200 shot of Nitrous. I'm going to hook up a spark plug on each side and have them ignite when I'm spraying. I'll be running with nitrous pretty rich so my flames will be nice and long. Just thought I'd share since we're on the subject :confused:

What the heck is wrong with you!?!??! A twin turbo 13b can easily produce horsepower right up there with a v8...and it's lighter...I really hope your making this up...after all, the beauty of the RX-7 is the rotary engine!

I forgot to mention how STUPID of an idea it is to have flames shooting out of your car on purpose....also, if you're going to have a 200 shot of nitrous oxide, your car won't really be NA. Sorry I had to vent, the RX-7 is one of my favorite cars...I can't believe someone wants to ruin one with a v8!

Originally posted by RedTT
This isn't really an answer but I'm putting a V8 in my 93 twin turbo RX7 and will be having flames come out the sides. Well, it's going to be 500hp NA and the a 200 shot of Nitrous. I'm going to hook up a spark plug on each side and have them ignite when I'm spraying. I'll be running with nitrous pretty rich so my flames will be nice and long. Just thought I'd share since we're on the subject

Why???????????? Flames out the side are a byproduct of unburnt fuel leaving the combustion chamber and then being ignited as it passes out the exhaust. It serves no purpose other than it looks pretty cool.

Damn guys, maybe I should have told you my whole story.

whttrspunk- a rotary can not produce 700hp and be streetable. How much HP do you think Adam Sawatari has? I don't think he drives his on the street. Stock 93RX7 weights in at about 2800lbs, when I'm done with mine it will weight 2900lb and have a perfect 50/50 f/r. I didn't buy my RX7 for the rotary engine so I'm not going to keep it just cause I love it, sorry. I figure I will be in the 10's when I'm done and be a daily driven car. Who knows, maybe even 9's. I've done my share of homework, this is the best way to go in my book. I get to have power, reliability, alot more tech help, more parts, better sounding, oh did I mention reliable?

About the flames out the sides, I'm not doing it just to look cool and I sure am not making my car run rich for the flames. Actually, when I use nitrous I will run pretty rich just to be safe. I figure if I'm running that rich I might as well do something with it. So, I'm not doing it to look cool, it's just going to look cool when I do. See, so I'm not running rich to make the flames. With or without the flames, I'm going to run rich anyways. I know you guys are trash talking about the flames now but I bet if one comes to your local dragstrip and blows some fat 3ft flames you'll be looking at his next runs.

An

Originally posted by 91zc


Why???????????? Flames out the side are a byproduct of unburnt fuel leaving the combustion chamber and then being ignited as it passes out the exhaust. It serves no purpose other than it looks pretty cool.
and what's the purpose of a body kit, roof scoop, spoiler, clear corners, headlight kits? All for looks and does no purpose, well no real purpose