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takai Forums Junkie Location: Adelaide Registered: May 2003	Re: Why quads should be boxed (Lessons learnt at Mallala) Fri, 29 April 2005 13:47 Alas you are misreading my original statement. I think that there is a contention over the lack of exhaust gasses. What i meant by this is that due to the lack of spark (being at redline) the engine was not igniting the fuel pumped into the cylinders (at severely reduced rate due to the combined partial fuel cut) and therefore exhaust scavenging was not optimal. Sure a lot of unburnt fuel/air mixture would have flowed out through the extractors, but just as much unburnt fuel/air mixture would be flowing into the cylinder. This is a perfect recipe for flash fires. Also, i am pretty certain that the engine stalled due to a completely seperate issue to the fire. Mainly due to all the ignition wiring still being fine (heat shielded) and all wires still show connectivity. I am willing to put the stall down to freak wiring stuff which i was having issues with up until 5mins before i hit the track. In response to your last post, the engine would NOT be required to be completely stopped for the original theory to work, it would merely need to be at redline with the throttle open (in this case jammed). The long duration of the cams would easily allow for both intake and exhaust valves to be open when the fuel hit the hot extractors. Assuming it ignited there it would be quite easy for the mixture to propogate back out to the intake, as that is the closest supply of fresh oxygen. And as above, given that all the ignition wiring is fine, and only part of the injector wiring is cooked (read: wouldnt cause it to stall) there is no fire-related reason for it to have stalled. [Report message to a moderator]

	Subject	Poster	Date
	Why quads should be boxed (Lessons learnt at Mallala)	takai	Mon, 25 April 2005 12:51
	Re: Why quads should be boxed (Lessons learnt at Mallala)	4ageeza	Mon, 25 April 2005 13:25
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Arch	Mon, 25 April 2005 13:31
	Re: Why quads should be boxed (Lessons learnt at Mallala)	rob_RA40	Mon, 25 April 2005 22:41
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Simon-AE86	Tue, 26 April 2005 07:25
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 07:44
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 07:48
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 07:57
	Re: Why quads should be boxed (Lessons learnt at Mallala)	improvedae86	Tue, 26 April 2005 07:52
	Re: Why quads should be boxed (Lessons learnt at Mallala)	nightdevil	Tue, 26 April 2005 08:26
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Simon-AE86	Tue, 26 April 2005 07:57
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 07:58
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 08:01
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Tue, 26 April 2005 15:08
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 22:13
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Wed, 27 April 2005 00:20
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 08:01
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 08:05
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 08:11
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Simon-AE86	Tue, 26 April 2005 08:10
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 08:11
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 08:17
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 08:18
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Tue, 26 April 2005 08:23
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 08:36
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Matt-AE86	Tue, 26 April 2005 10:32
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Arch	Tue, 26 April 2005 10:52
	Re: Why quads should be boxed (Lessons learnt at Mallala)	4ageeza	Tue, 26 April 2005 13:52
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 26 April 2005 11:02
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Wed, 27 April 2005 01:00
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Wed, 27 April 2005 11:55
	Re: Why quads should be boxed (Lessons learnt at Mallala)	F|sh	Wed, 27 April 2005 08:08
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Wed, 27 April 2005 12:09
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Wed, 27 April 2005 13:32
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Wed, 27 April 2005 13:40
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Fri, 29 April 2005 12:02
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Matt-AE86	Fri, 29 April 2005 14:18
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Sat, 30 April 2005 12:16
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Matt-AE86	Sat, 30 April 2005 13:13
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Fri, 29 April 2005 13:47
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 03 May 2005 11:40
	Re: Why quads should be boxed (Lessons learnt at Mallala)	ae86drift	Wed, 04 May 2005 15:05
	Re: Why quads should be boxed (Lessons learnt at Mallala)	TRD-ST162	Mon, 16 May 2005 13:39
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Mon, 16 May 2005 14:10
	Re: Why quads should be boxed (Lessons learnt at Mallala)	emmac	Tue, 17 May 2005 10:24
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 17 May 2005 10:27
	Re: Why quads should be boxed (Lessons learnt at Mallala)	SirLyndon	Fri, 27 May 2005 22:34
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Sat, 28 May 2005 00:21
	Re: Why quads should be boxed (Lessons learnt at Mallala)	EMP-2TG	Sun, 12 June 2005 22:56
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Mon, 13 June 2005 00:55
	Re: Why quads should be boxed (Lessons learnt at Mallala)	monkeymajik	Tue, 14 June 2005 01:48
	Re: Why quads should be boxed (Lessons learnt at Mallala)	Allan	Tue, 02 August 2005 11:23
	Re: Why quads should be boxed (Lessons learnt at Mallala)	takai	Tue, 02 August 2005 12:11

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