[Diy_efi] Greenfire re: Smart Plugs - anybody actually looked?

[Ernest Buckler]

Have any of you guys who are still talking about Greenfire actually looked 
at the Smart Plugs site?   Or do you think I've just been bullshitting? 
Then you'll REALLY have something to talk about...Multi-fuel capable AND no 
distributor AND lots newer data than Greenfire AND the same kind of nose 
ports and flow questions only more so...

Ernie



----- Original Message ----- 
From: "Mike" <niche at iinet.net.au>
To: <diy_efi at diy-efi.org>
Sent: Sunday, July 03, 2005 12:29 AM
Subject: Re: [Diy_efi] Re: davy lamps and


> Interesting info and observations, thanks Phil
>
>
> Regards from
>
>
> Mike Massen
> Perth, Western Australia
> VL Commodore Fuse Rail that wont warp or melt !
> http://niche.iinet.net.au
>
>
>
> At 07:43 AM 29/06/05, you wrote:
>
>>On first glance it appears that the temperature of
>>the metal and it's ability to cool a local zone below
>>the ignition temp that would "prevent " the escape
>>of the ignition source to the atmosphere.
>>
>>The dead zone in an IC engine can be more than 1 mm
>>thick under some operating conditions.
>>
>>Still it seems that having a combustible mixture of
>>methane in the air you're breathing can't possibly be
>>good for you even if it doesn't ignite.
>>
>>
>>In the same light the flame traversing the small holes
>>in the plug would be moving quickly enough not to be
>>quenched completely. Although I would recommend
>>that they don't make the plugs out of metal.
>>
>>If the TMFB is 90% at 5 to 8 degrees ATDC with a bore
>>diameter of 84 mm and a central plug that give an approx.
>>propagation time of say
>>
>>6000 rpm = 10 mS per rev or 36 degrees of crank in approx. 1 mS.
>>
>>42 mm in 1 mS or 42 M/S or 151 kMHr (95 mph if you wish)
>>
>>As for pressure gradients, not sure what you mean.
>>
>>phil
>>
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