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What causes cossie exhaust flames

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Old Jan 30, 2007 | 07:23 PM
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Default What causes cossie exhaust flames

(apart from a flamer kit!)

I love seeing cars spit out the odd flame or two (my dad's Westfield for example ) but don't want a chavy flamer kit.

Obviously its when they overfuel but it is only a certain spec / set-up that causes this?
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Old Jan 30, 2007 | 07:26 PM
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anti lag maybe??
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Old Jan 30, 2007 | 07:31 PM
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Default Re: What causes cossie exhaust flames

Originally Posted by Jimboxr4x4
(apart from a flamer kit!)

I love seeing cars spit out the odd flame or two (my dad's Westfield for example ) but don't want a chavy flamer kit.

Obviously its when they overfuel but it is only a certain spec / set-up that causes this?

Oi there's nothing chavy about flamer kits, they produce the desired effect



Luciano
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Old Jan 30, 2007 | 07:31 PM
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It's the fact that input values to the ECU are time-averaged, so that it takes a certain amount of time for the high boost and open throttle readings to settle out, hence it takes a small time for the ECU to cut back the fuel on overrun IMO.

Either that or the map is just not very good?

Neil.
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Old Jan 30, 2007 | 07:32 PM
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I see. Am I likely to get an flames spitting out the back of my stage 1 cossie? I imagined it was only the big power cars that do it.
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Old Jan 30, 2007 | 07:38 PM
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Mine does it but i wish it didn't

Steve.
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Old Jan 30, 2007 | 07:41 PM
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Default flames

Originally Posted by cossie4is dad
Mine does it but i wish it didn't

Steve.

Why? flame spitting cossies look phat bruv and its a fucking great detterent for tail gaters



Luciano
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Old Jan 30, 2007 | 07:41 PM
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i 'think' the main cause is the over run fuel being lit by the very hot exhaust...some mappers use more fuel than others on the over run mind
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Old Jan 30, 2007 | 07:51 PM
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Default Re: flames

Originally Posted by charlie luciano
Originally Posted by cossie4is dad
Mine does it but i wish it didn't

Steve.

Why? flame spitting cossies look phat bruv and its a fucking great detterent for tail gaters



Luciano
Because im almost 37 not 17

And all that fuel im wasting

Steve.
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Old Jan 30, 2007 | 07:52 PM
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Originally Posted by Jimboxr4x4
I see. Am I likely to get an flames spitting out the back of my stage 1 cossie? I imagined it was only the big power cars that do it.
Take it a 150mph blast down the motorway for a min or 2, get the exhaust hot....then let it roll down the gears on overunn (at night) an u'll see
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Old Jan 30, 2007 | 07:59 PM
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not if its closed loop, they have a fuel cut off on over run conditions
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Old Jan 30, 2007 | 08:01 PM
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Default Re: flames

Originally Posted by cossie4is dad
Originally Posted by charlie luciano
Originally Posted by cossie4is dad
Mine does it but i wish it didn't

Steve.

Why? flame spitting cossies look phat bruv and its a fucking great detterent for tail gaters



Luciano
Because im almost 37 not 17

And all that fuel im wasting

Steve.

That's alright you've only got two years on me age wise and just think cossie's blast nuff un-burnt fuel out the tail pipe why let it go to waste light it and have some fun


Luciano
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Old Jan 30, 2007 | 08:03 PM
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Take it a 150mph blast down the motorway for a min or 2, get the exhaust hot....then let it roll down the gears on overunn (at night) an u'll see
This is what happened to mine (not up to 150mph mind you). My mate was driving my cos and I was in his 200sx. As he was cogging it down to stop at the lights a MASSIVE flame shot out. it was there for what seemed like ages too, I thought it was never gonna go out.
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Old Jan 30, 2007 | 08:06 PM
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Blimey. Sounds like I might get a flame or two then

I'm 33 but still like seeing the sight of a cossie spitting out the odd flame or two
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Old Jan 30, 2007 | 08:07 PM
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mine used to spit massive flames all the time after Mark had mapped it.

Doesnt spit any flames at all since it was mapped by Alan @AVA.

must be someting in the map

A leaking exhaust manifold also used to cos big flames.
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Old Jan 30, 2007 | 08:09 PM
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Default flamers

Originally Posted by Jimboxr4x4
I'm 33 but still like seeing the sight of a cossie spitting out the odd flame or two

That's the best statement you've made in this thread



Luciano
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Old Jan 30, 2007 | 08:12 PM
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ive been told mine does but ive no idea why or if its good or bad.looks good though especially when its coming from the exhaust of my 16 year old 'estate' car thats just over taken you
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Old Jan 30, 2007 | 08:13 PM
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This is what cossie ownership is all about!

Now wheres my burbery cap gone
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Old Jan 30, 2007 | 08:15 PM
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Default flames

Originally Posted by fuzzy
ive been told mine does but ive no idea why or if its good or bad.looks good though especially when its coming from the exhaust of my 16 year old 'estate' car thats just over taken you

All this from a man who knocks Fords but has the heart of one is his crout estate


Hello Fuzzy hows it going geez?


Luciano
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Old Jan 30, 2007 | 08:16 PM
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Usually a map for greys comes into it
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Old Jan 30, 2007 | 08:16 PM
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My car used to do it on b roads without a flamer when it was stage 1, but only occasionally when giving it real horse and lifting from full throttle then reopening the throttle.

Really fast and bright flashes, not the drawn out flames you get from a flamer kit.

It's now on a MSD 803 0.63A/R T34 chip with Closed Loop fuelling and it does it like mad on gearchanges (with a flamer )

Neil.
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Old Jan 30, 2007 | 08:20 PM
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My stage 3 setup done it using an ahmed chip and my greys setup using a Stu chip also does. Big lingering flames that stay hanging out the back of the tailpipe for 20 secs some times. When the exhaust is proper hot and big boost gear changes and over run in 5th a lot
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Old Jan 30, 2007 | 08:21 PM
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Nice one. Thats what I like to hear
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Old Jan 30, 2007 | 08:24 PM
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Default Re: flames

Originally Posted by charlie luciano
All this from a man who knocks Fords but has the heart of one is his crout estate


Hello Fuzzy hows it going geez?


Luciano
alright mate,its going good. ive said it before and ill say it again the cars are tinny crap but the engines are good. ive settled for the best of both worlds
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Old Jan 30, 2007 | 09:12 PM
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Originally Posted by JTECHSAFF
not if its closed loop, they have a fuel cut off on over run conditions
i'd be very surprised if the 'closed loop' works immediately when lifting from 150mph

MELTDOWN!!!
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Old Feb 1, 2007 | 11:32 PM
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dont know if i will get them with my new engine but this was taken with my old engine

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Old Feb 2, 2007 | 12:15 AM
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cossie4is dad....Because im almost 37 not 17
i'm 35 so not too far behind u m8.....and i'm still fuckin lovin it.....
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Old Feb 2, 2007 | 01:11 AM
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Originally Posted by bud-weis
Originally Posted by JTECHSAFF
not if its closed loop, they have a fuel cut off on over run conditions
i'd be very surprised if the 'closed loop' works immediately when lifting from 150mph

MELTDOWN!!!
does the fuel cut off completely cut the fuel on the over run????
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Old Feb 2, 2007 | 01:14 AM
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Default Re: What causes cossie exhaust flames

Originally Posted by Jimboxr4x4
(apart from a flamer kit!)

I love seeing cars spit out the odd flame or two (my dad's Westfield for example ) but don't want a chavy flamer kit.

Obviously its when they overfuel but it is only a certain spec / set-up that causes this?
i was always under the impression that performance turbo'd engines also pop and bang when you hit the limiter and iirc some limiters cut the spark rather than fuel so unburnt fuel ends up going through the exhaust and igniting on the hot pipe anyone??


am i talking dog mess???
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Old Feb 2, 2007 | 01:20 AM
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who cares...looks awesome no matter what causes it m8 don't u think.....see u at the pod eh......
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Old Feb 2, 2007 | 01:28 AM
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Originally Posted by frosty
who cares...looks awesome no matter what causes it m8 don't u think.....see u at the pod eh......
if you talking to me than look forward to seeing your motor at the pod mate
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Old Feb 2, 2007 | 01:48 AM
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Originally Posted by 4x4
Originally Posted by frosty
who cares...looks awesome no matter what causes it m8 don't u think.....see u at the pod eh......
if you talking to me than look forward to seeing your motor at the pod mate
was talking 2 u m8...see u there, weather permitting....
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Old Feb 2, 2007 | 02:14 AM
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Default Re: flames

Originally Posted by cossie4is dad
Originally Posted by charlie luciano
Originally Posted by cossie4is dad
Mine does it but i wish it didn't

Steve.

Why? flame spitting cossies look phat bruv and its a fucking great detterent for tail gaters



Luciano
Because im almost 37 not 17

And all that fuel im wasting

Steve.
thats like driving a ferrari F40 and saying i dont want it to throw flames out on the over run cause im 67 or how ever old you said.

if that was me in the F40 i know it would probably be enough for me to floor it again straight after hearing the bangs, just imagine the feeling
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Old Feb 2, 2007 | 05:26 AM
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over run fuel cut off on the old webber ecu's is not a total shut off, it is min injector on times for the particular load site you are now at on overun
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Old Feb 2, 2007 | 05:48 AM
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flamer are are awsome i love a look of the driver behind you when you toast there number plate
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Old Feb 2, 2007 | 08:27 AM
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what happens when it splits out flames and a copper is driving behind you!!????
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Old Feb 2, 2007 | 10:26 AM
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i used a flamer kit and will be using it on my next car aswell

just for the grin factor of seeing peoples faces when they see a xr4x4 with big flames out the back
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Old Feb 2, 2007 | 10:27 AM
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personaly I'm 37 and I wouldn't be anything other than well impressed if I saw a flame fucking hell I need to grow up
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Old Feb 2, 2007 | 10:40 AM
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isnt it ilegal though to have a flamer kit? what would the cops do if they sen it!?
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Old Feb 2, 2007 | 10:47 AM
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my old stg 1 4x4 saph (with a ahmed chip) used to throw flames out when it was hot ,

but ive never seen my old stg 3 MSD chip escos with the coilpack pop a flame..
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