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What causes cossie exhaust flames

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Old 02-02-2007, 10:58 AM
  #41  
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The p8 has almost full overun fuel shut off ability
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Old 02-02-2007, 12:30 PM
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ah, that'll be why then, it was a P8, and the saph was a L8
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Old 02-02-2007, 02:16 PM
  #43  
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Originally Posted by lukeytheduke
what happens when it splits out flames and a copper is driving behind you!!????
you just keep your fookin foot down
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Old 02-02-2007, 02:37 PM
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Originally Posted by AndyBrew
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
I'm 30 and i fitting one! Fuck it................

I've always wanted a flaming cos after watching Keith Brooks white saff lighting up the dark lanes while being chased by the queens finest
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Old 02-02-2007, 02:39 PM
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Originally Posted by Franco
Originally Posted by AndyBrew
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
I'm 30 and i fitting one! Fuck it................

I've always wanted a flaming cos after watching Keith Brooks white saff lighting up the dark lanes while being chased by the queens finest
What will dave say when he finds this?
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Old 02-02-2007, 02:46 PM
  #46  
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Something along the lines of 'You're a cunt'.............. But

Yes i would be a cunt, but i do not care!
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Old 02-02-2007, 03:10 PM
  #47  
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jimbo, how do you find the cossie then? loving it?
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Old 02-02-2007, 03:34 PM
  #48  
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Originally Posted by Franco
Originally Posted by AndyBrew
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
I'm 30 and i fitting one! Fuck it................

I've always wanted a flaming cos after watching Keith Brooks white saff lighting up the dark lanes while being chased by the queens finest

come on people, the natural flame spits are awsome and also Anti Lag but not the FLAMMER kit, cossies dont need em
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Old 02-02-2007, 04:08 PM
  #49  
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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!!!
cars that were fitted with cats as standard had to have a fuel cut or the cat would fail quite quickly
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Old 02-02-2007, 04:23 PM
  #50  
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Originally Posted by JTECHSAFF
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!!!
cars that were fitted with cats as standard had to have a fuel cut or the cat would fail quite quickly
What, you mean like all cars sold in the past 15years?
Every single one of them? Hmm... why dont they melt?

Some people get told and believe some real garbage in this world...
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Old 02-02-2007, 04:27 PM
  #51  
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is it true fuel is sometimes used to cool valves on overrun?
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Old 02-02-2007, 04:33 PM
  #52  
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Originally Posted by Stu @ M Developments
Originally Posted by JTECHSAFF
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!!!
cars that were fitted with cats as standard had to have a fuel cut or the cat would fail quite quickly
What, you mean like all cars sold in the past 15years?
Every single one of them? Hmm... why dont they melt?




Some people get told and believe some real garbage in this world...





was i right then! crikey im getting good
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Old 02-02-2007, 04:34 PM
  #53  
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Originally Posted by Stu @ M Developments
Originally Posted by JTECHSAFF
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!!!
cars that were fitted with cats as standard had to have a fuel cut or the cat would fail quite quickly
What, you mean like all cars sold in the past 15years?
Every single one of them? Hmm... why dont they melt?

Some people get told and believe some real garbage in this world...
What actually causes the flames stu. Is it just the unburnt fuel lighting on the hot exhaust?
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Old 02-02-2007, 04:53 PM
  #54  
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Default Re: What causes cossie exhaust flames
Originally Posted by 4x4
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 02-02-2007, 05:03 PM
  #55  
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Jim Galbally
jimbo, how do you find the cossie then? loving it?
Haven't driven it in the two weeks since I collected it. I need to change the oil and give it a service as it has been standing for the last few years and only started up for MOTs. The oil is 5 years old, although its only done 2.5k miles!

I am so busy at work I never get a day to work on it. I started on it this afternoon and within a few minutes the phone rang calling me back into work. Just waiting to get picked up now and will probably be away all bloody weekend.
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Old 02-02-2007, 05:11 PM
  #56  
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Originally Posted by jaimesdna
is it true fuel is sometimes used to cool valves on overrun?
Yes, I believe it helps to cool the piston tops at high revs with no load, of course a by product of this is you get flames, which are or arn't a good thing depending on who you talk to.


BTW Flames are cool.
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Old 02-02-2007, 05:38 PM
  #57  
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Jim - just got a call cancelling me so hope I will now be off for the weekend (touch wood)

If I manage to get it all done i'll give you a bell as I'd love to have a ride in your M3 as well.
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Old 03-02-2007, 06:17 PM
  #58  
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cool

i've moved now, i'm right next to shortlands station
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