AJI Posted May 6, 2006 Share Posted May 6, 2006 http://www.mkivsupra.net/vbb/vbpicgallery.php?do=big&p=469 Is it a case of having a mappable ECU and creating a longer fuel overrun? Or can it be done with a stock(ish) setup engine with an exhaust upgrade? The car in the picture is Mr Whiffin's is it not, and the spec is... well pretty damn high. My existing setup will pop and bang every so often and I may get a small hint of a flame once in a while, but I'm not getting any flames of that size. You just can't beat a car that fires flames in anger like that, its very impressive. May not give a faster lap time but it sure looks good whilst you're trying. (not wanting to go down the chav-flamer-kit route by the way) Quote Link to comment Share on other sites More sharing options...
Gazboy Posted May 6, 2006 Share Posted May 6, 2006 That RX7 I went to Wales with spat flames the size of umbrellas- I'd love to do that! Quote Link to comment Share on other sites More sharing options...
Tom Posted May 6, 2006 Share Posted May 6, 2006 I think I remember reading a thread where CW said about retarding the ecu to overfuel like crazy too shoot flames like this, may come up on a search? Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted May 6, 2006 Share Posted May 6, 2006 Lots of overfuelling probably? Quote Link to comment Share on other sites More sharing options...
Getrag Posted May 6, 2006 Share Posted May 6, 2006 I have a full decat and when I put in a walbro fuel pump it became a flame-thrower . Unfortunately, when I put in the restrictor ring this went away Quote Link to comment Share on other sites More sharing options...
Thorin Posted May 6, 2006 Share Posted May 6, 2006 overfuel and retard ignition at higher RPM range a tad. Quote Link to comment Share on other sites More sharing options...
AJI Posted May 6, 2006 Author Share Posted May 6, 2006 is that safe for the engine Thorin? And this won't be possible on a stock ECU I take it... unless you piggy-back it with anither chip. Quote Link to comment Share on other sites More sharing options...
Whitelightning Posted May 6, 2006 Share Posted May 6, 2006 I believe TAZ is an expert at doing this Its just a case of flooding the exhaust with unspent fuel by revving on some decent injectors with either bad or extreme timing. Quote Link to comment Share on other sites More sharing options...
NeoFuture Posted May 6, 2006 Share Posted May 6, 2006 doods little switch on the dash and a spark plug in the outlet pipe on the rear can !!!! lol Quote Link to comment Share on other sites More sharing options...
Guru Posted May 7, 2006 Share Posted May 7, 2006 I used to have a flamer on my last car. Its a simple as overfuelling with a live spark plug in the exhaust and you can see amazing results. I saw one Evo spitting 10 foot fireballs as below...... Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted May 7, 2006 Share Posted May 7, 2006 the plug in the exhausts is for chavs and its cheating Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted May 7, 2006 Share Posted May 7, 2006 Look at the state of that wing. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted May 7, 2006 Share Posted May 7, 2006 lol, didnt spot that! its like a lego car Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted May 7, 2006 Share Posted May 7, 2006 lol double post Quote Link to comment Share on other sites More sharing options...
Matt H Posted May 8, 2006 Share Posted May 8, 2006 In rally cars, the flames from exhaust gases are generated from a technical peice of machinery which keeps the turbos spooling when you take your foot of the gas so the boost is still there when you plant your foot back down. They say that its kills turbos like nothing else tho so they dont use them on normal cars where you would want your turbos lasting more than a couple of races! Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted May 8, 2006 Share Posted May 8, 2006 In rally cars, the flames from exhaust gases are generated from a technical peice of machinery which keeps the turbos spooling when you take your foot of the gas so the boost is still there when you plant your foot back down. They say that its kills turbos like nothing else tho so they dont use them on normal cars where you would want your turbos lasting more than a couple of races! LOL you mean antilag, where you effectively let fuel into the exhaust to keep the turbo spinning. Yes the exhaust wheels dont like it ( rally cars use iconel wheels AFAIK) There are ways of setting certain standalone ECU's up to give large flames on lift off. Quote Link to comment Share on other sites More sharing options...
Pete Posted May 8, 2006 Share Posted May 8, 2006 I had some excellent flames out of the exhaust and trumpets when playing with the ignition and webbers on the kit. Quote Link to comment Share on other sites More sharing options...
black cat Posted May 8, 2006 Share Posted May 8, 2006 would you not get a little flame on high rpm change up wth a de cat??? or nothing........ ? Quote Link to comment Share on other sites More sharing options...
Animal Posted May 8, 2006 Share Posted May 8, 2006 That's not a wing - that's a bloody trellis, that is! Quote Link to comment Share on other sites More sharing options...
TLicense Posted May 8, 2006 Share Posted May 8, 2006 The ECU completely cuts fuel when decelerating above a certain rpm. If you have an aftermarket ECU and don't enable this deceleration fuel cut off (DeFCO) then you'll get flames. As has been mentioned before, the turbo won't like it much, and on other cars that have ceramic CAT's you can feck those up too. Essentially, in my book, it points to a poorly mapped car. And that rear wing is obscene. Quote Link to comment Share on other sites More sharing options...
AJI Posted May 8, 2006 Author Share Posted May 8, 2006 The Carling F3 race team used to set up both of their F3 cars in the BritF3 Championship to overfuel on lift-off.... I asked one of their engineers a while back why they did this and he told me that it gave quicker throttle response when the driver came back on the power. Don't know if this is applied to all types of engine mapped this way, but it seemed to work for F3 cars as Carling won the season that year with Takuma Sato. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 9, 2006 Share Posted May 9, 2006 As Tony already stated most stock ECUs will use some form of DFCO, I have this turned off on my AEM to get the flames, bangs and pops. Quote Link to comment Share on other sites More sharing options...
AJI Posted May 9, 2006 Author Share Posted May 9, 2006 Is it a simple and reversable process to turn off the DFCO on a stock UK-spec ECU ? Quote Link to comment Share on other sites More sharing options...
Wez Posted May 9, 2006 Share Posted May 9, 2006 Since the stock unit is non mappable i guess you cannot turn it off, maybe some of the rechipped units like the Blitz and Mines have it disabled but thats only a guess. Quote Link to comment Share on other sites More sharing options...
Stolichnya Posted May 9, 2006 Share Posted May 9, 2006 mine does it, all the time or when i want it to. its really simple too. as long as you have no CATS, get a flamer kit fitted. thats all most of these are, no fancy stuff. just a coil in the boot and a plug about 3 inches from the tail pipe. [email protected] for more info Quote Link to comment Share on other sites More sharing options...
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