Anything and everything GT6.

Not really posting this for any real reason, other than the fact that some of you might like it.

This is my exaust when i floor it, then let of the accelarator.

Not very good video I am sorry, but I have stabelised it as much as possible and compresed it so that is should nto take all day to load. Will hopefully soon get some better footage.

http://www.dmarks.co.uk/car/flames.mov

David.

I know it's totally useless and most certainly very immature but I love flames out the exhaust like that - I aspire to such things. Those are some of the best flames I've seen for a while - any chance of a beter quality video for us sad people who want to see the whole thing?
PI set-ups usually put a lot of fuel in and run rich with does help to create a nice flame on the over-run.
Toasty.

Will post a better clip as soon as I can.

I want flames to toast some tail gating euro-boxes!

for flames without making your engine overfueled get (an adequately named) "Spitfire" box or Hot Box. you hook up two coils to the box and thered sparks into the exhaust. turn it on and they have a timed spark which ignites unburnt fuel.

im thinkin of getting one. theres a few on ebay.

Am i missing something here?.................what's the bleeding point?

Adrian - I think I'm missin sommat here too!! God help us!!! (It'll be christmas tree lights and ultra loud sound systems next!!) Each to their own but definitely not my cup of tea!!

Regards

yes this is very irresponsible behaviour and innapropriate Mr Carruthers. No wonder you young scallywags have to pay such high insurance premiums! Consider yourself chastised!

Maybe you could add a spark plug into the tailpipe wired up for an "afterburn" button whilst accellerrating too

I expect your GT would have more in common with a comet than a car, were the exhaust flames to ignite a leak from the petrol tank.

Oooo, just imagine if it ignited the vapour that is often flagged up on the "my spitfire smells of pertrol" threads......

BABOOOOOOOM!

I do think this is more scare-mongering than actualy possibility though

Hey,

Ok, sorry I have not posted back soon, but only just realised that anybody else had replied.

So are these flames dangorus? They do not seem to happen when you are going slow, just when when you slow down from a high speed, or having had your foot down.

As much as I enjoy the flames, I dont really want to turn my car into a fireball, that might go bang. Though shorley if my petrol tank got a leak anyhow, and touched the exaust it would ignigt anyhow?

As for this: "Oooo, just imagine if it ignited the vapour that is often flagged up on the "my spitfire smells of pertrol" threads.....", I am going to have a look at those forms now!

Surely if you can get things fitted that make this sort of thing happen it can not be to dangorus???? Or would it be best that I get this sorted out so that it does not flame?

Anyhow, basicly I am now a bit worryed that I am going to explode!

David.

PS: No plans to fit any sort of neon, lighting etc (ever).

Wow.....let me reach for the kleenex!!!!!!!!!!!!!

I suppose the basic fire triangle needs to be looked at here

i.e. you need all three points of the fire triangle for a fire to occure be maintained. These are oxygen (air), fuel (petrol) and heat. The flames are only seen outside the tail pipe because that's where the air is. We know what the fuel is so the question is where is the heat coming from?

The 'kits' you can buy provide the heat in the form of a pulsing spark which ignites the unburnt fuel which ignites when exposed to air. However, on some information sites about these products there is a warning that if your exhaust develops a hole somewhere in the system you can blow your back box up

You can often see turbo race cars doing this due to the excessive heat in the turbo system and by the fact that racers are generally set to run somewhat rich - which is especially true at low revs (they are optimised for high revs). However if you set your road car up this way you will undoubtedly cause the excessive engine wear usually associated with running too rich.

As for blowing yourself up, I really don't expect this to happen but it is a bigger danger than the normally hot exhaust - the rear end of your exhaust is normally not hot enough to ignite petrol but flames coming out of it definately are! And as for the 'petrol smell', if you can smell petrol then there is a vapour (although likely very weak) and petrol vapour is explosive - that combined with the enclosed space the boot provides a dangerous combination. But of course the flame has to find it's way in there first - if the vapours are coming out I would expect them to easily be dissipated into the atmosphere rather than be ignited.

If you are now thinking about Dragstar/Hotrods with flames coming out of their exhaust then this is an entierly different matter. These flames are combustion flames coming directly out of the combustion chamber - they simply have so much overlap that the reaction hasn't finished by the time the exhaust gases have reach the end of the pipe.

Glad to hear about the neon...

I *think* Ben was originally jesting about wanting flames to torch euroboxes...

The car that really does flame - due to a wild cam and Lucas PI is David Mark's 2.5PI Gitfire... we had another go at filming the infamous flames again last weekend...

http://www.mintylamb.co.uk/video/flame1.wmv

http://www.mintylamb.co.uk/video/overtake1.wmv

All shot from my Spitfire... and still not really all that great - we need to get some at night I think... you can see the flames in the rear view mirror...

James

Jason,

Can I say, as someone who has seen these flames in real life - no video does these things justice...

All the way coming home from Stoneleigh - me and David overtook each other... not exactly exciting for him - but when you hear that beast roaring past your car and then flames coming out for seconds at a time... it put me in hysterics...

The best bit was when he decided to overtake me just before going up the slip road off the motorway - I was dissapointed to see no flames at first - but then as he went up the slip road, the flames came out - ALL THE WAY UP THE SLIP ROAD - a good 150m or so! - and this was right as it was getting really dark...

Even more impressive was when I got to drive this beast - it was dusk and I was giving it some pedal to the metal action

along a country lane - when snapping the throttle shut, you could see a golden glow lighting

up the hedge row in the wing mirrors...

cool as anything...

To have that much fun in a car must be illegal...

James

69 Signal Red Spit

Section : Exhaust

Exhaust flames

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