Fire Spitting

Fire Spitting

Author
Discussion

dyap

Original Poster:

56 posts

279 months

Monday 15th October 2001
quotequote all
Have a 4.5 Cerbie just over 1 year old. Excellent car.

Can anyone offer any tips to make it spit fire ? Eg speed, revs, gear etc...

Thanks
DY

RichB

52,745 posts

291 months

Monday 15th October 2001
quotequote all
Fit a Rolls Royce Merlin engine???

raceboy

13,274 posts

287 months

Monday 15th October 2001
quotequote all
It would go faster (& spit a lot of flames) if you fitted a Rolls Royce Trent 500, the sort on an Airbus Airliner, we could do with the orders at the moment :-)

octave

17 posts

290 months

Monday 15th October 2001
quotequote all
Thats simple just decat it and you'll be able to arc weld porkers from 20 paces...
Phil

Theneed4speed

71 posts

278 months

Tuesday 16th October 2001
quotequote all


Ive decated my 4.2 with a sports exhaust
and it spits Mega flames!!!!!!!
i try not to grin as this happens!

m soper

GasBlaster

27,428 posts

286 months

Tuesday 16th October 2001
quotequote all
How do you know its spitting? Can you seem them from the rear view mirror?

dyap

Original Poster:

56 posts

279 months

Tuesday 16th October 2001
quotequote all
anyway of spitting without mods ie drive the car as is ?

TheNeed4speed

71 posts

278 months

Wednesday 17th October 2001
quotequote all
Yep can see it in the rear view mirror on a dark A road.
And i was racing my freinds e/cozy and he said it was flameing between gear changes

m soper

jna

87 posts

279 months

Wednesday 17th October 2001
quotequote all
Does anyone know if the same principal works on the Chimaera (have the sports exhaust allready) as I would love to melt the front of all those idiots who sit on my tail in their euro box's ( how anyone thinks a a 1.6 rep mobile is going to keep up with a even a lowely 4.0l chim is beyond me) on the M25 in the mornings how satisfying it would be to watch the panic on thier faces !!!!!!! He He !!

TheNeed4speed

71 posts

278 months

Wednesday 17th October 2001
quotequote all
the car i had before was an e/cozy
tuned to 400bhp,and to spit flames,i fitted a spark plug 12"from the end of the exhaust and had it sparking via a button on the gear stick wich i pressed in between gear changes..and 4foot flames were there in my mirror...god i miss that
there is a web site on this some were,and how to do it

m soper

raceboy

13,274 posts

287 months

Wednesday 17th October 2001
quotequote all
Any idea what the web site address was, thats got to be a top laugh

Theneed4speed

71 posts

278 months

Thursday 18th October 2001
quotequote all
i've had a look for the web site but i cant find it .Its all the rage in other countrys.and very simple just have to get the kit ,or make it up your self.thats what i did

m soper

johnboy

277 months

Sunday 21st October 2001
quotequote all
Was recently in Aus. and what the hot rod boys there do is to cut a thread into the tail pipe near the end, insert a spark plug fired by a 2nd coil and feed from the LT side of the ingnition (so you have a pulse for the plugs) then attatch a fuel line and nozzel to the exaust just behind the plug,fed from an electric pump and dash mounted switch and hey presto you have the ability to belch fire at will!!!.sounds extreme i know but looks awsome at night!!

Or just lean off the mixture and retard the ignition alot.Won't be much fun to drive though........
p.s be carefull they are made of plastic......

mhibbins

14,055 posts

286 months

Monday 22nd October 2001
quotequote all

That sounds *fantastic*, especially with the upswept exhaust of my s3!

Given my cavalier attitude to safety and over enthusiasm for building splendidly childish things like this, what are the chances of...

1) Blowing myself to kingdom come [1]?
2) Melting the back of my car [1]?
3) Being locked up?
4) Simply dying from excessive giggling?

[1] When you turn the fuel flow off does the pressure of the exhaust gases effectively extinguish the flames rather than let it lick up the back of the car or suck back into the exhaust?

Pressumably this would only work without the additional fuel flow to my exhaust on my s3 if there was unburnt fuel exiting from the exhaust. How do I find this out (without hanging off the back of the car with a disposable lighter while someone accelerates through the gears)?


--
Mark

mhibbins

14,055 posts

286 months

Monday 22nd October 2001
quotequote all
Bad form to reply to my own post but I'll try and rig up a kit to my petrol land rover (that runs quite rich and backfires on demand and it needs a new exhaust anyway). I'll let you know what works best :-)

--
Mark

Theneed4speed

71 posts

278 months

Monday 22nd October 2001
quotequote all
CAUTION......MATE

just try the plug with out any fuel......MEGA DANGEROUS ......my cozy flame'd well with just the plug ,using another coil and powering it up via the engine ,by a switch mounted onn the gear stick wich i press in every gear change ,as the button goes in the power supply is reduced to the engine,becouse the other coil is being fed,this richens the engine up while the switch is in ,,resulting in flames...the switch must be released after the gear change becouse the engine will suffer mega power loss,and resulting in engine damage...sorry i can't spelll.

mark s

m soper

Theneed4speed

71 posts

278 months

Monday 22nd October 2001
quotequote all
IF I HEAR A LOUD EXPLOPSION THIS AFTERNOON, I NO THAT YOU ARE IN THE SOUTH OF ENGLAND

m soper

MikeE

1,850 posts

291 months

Monday 22nd October 2001
quotequote all
a mate of mine told me that he'd achieved the same effect on a Bedford van by drilling a very small hole in the exhaust manifold. When you back off the throttle it'll pull air in through this hole and allow any unburnt fuel to ignite in the exhaust system, resulting in 2" long flames from the tail pipe....well that's his story anyway.

mhibbins

14,055 posts

286 months

Monday 22nd October 2001
quotequote all
MikeE - the land rover has a dodgy manifold gasket anyway so this does happen on the over run. However, the exhaust is so long that all you get it a lot of back firing and, as far as I know, no flames.

Theneed4speed - Don't worry, I wasn't going to route fuel to the exhaust as that does sound a bit insane. When you rigged up your spark plug to the second coil, did you have a constant feed to the coil when you pressed the button? I was thinking of having somehow an pulsed feed to it (like a normal spark plug feed) so the effect on the engine wasn't so pronounced. I was planning to do this pulsing on the low tension side but don't know if the coil will be able to handle it or wether I'll just get half the output from the coil. I'll have a play and see what happens. Thinking about it I could rig up some sort of recycled points from a single cylinder motorbike on one of the pulley wheels and then it would pulse once per revolution on the high tension side which should work better.

Don't tail-gate any green ex-military land rovers with over sized wheels in the Newbury area :-)

--
Mark

Edited by mhibbins on Monday 22 October 14:41

Edited by mhibbins on Monday 22 October 14:45

Edited by mhibbins on Monday 22 October 14:45

Theneed4speed

71 posts

278 months

Wednesday 24th October 2001
quotequote all


AAAHHH newbury near me lol

m soper