Two Stk

[brianyemail-nsrca at yahoo.com]

Wouldnt direct fuel injection minimize the effect you
are discussing?


--- Rcmaster199 at aol.com wrote:

>  
> Nat, maybe an easier way would be to take teflon
> tape and wrap it  around the 
> body. This material is quite porous and would have
> the intended  effect. Let 
> me know if you need some
>  
> Matt
>  
> In a message dated 3/1/2005 11:12:23 AM Eastern
> Standard Time,  
> natpenton at centurytel.net writes:
> 
> Another possible way, which I have not tried, to
> insulate the carb body  is 
> to use heat shrink. A strip of synthetic cloth could
> be placed front and  rear, 
> under the shrink, to partially provide a , trapped
> air barrier.  What is the 
> thermal conductivity of shrink?  
> I tried using a thin wall sillicon hose for
> insulation,  unsuccessfully.      
>                  Nat              
> 
> ----- Original Message ----- 
> From:  _Rcmaster199 at aol.com_
> (mailto:Rcmaster199 at aol.com)  
> To: _discussion at nsrca.org_
> (mailto:discussion at nsrca.org)  
> Sent: Tuesday, March 01, 2005 9:29  AM
> Subject: Re: Two Stk
> 
> 
> 
> Warm fuel will assist the vaporization. With care
> tho, to   disallow vapor 
> lock. And most vaporization does happen in the
> crankcase due  to partial vacuum 
> effect and heat there. But enough happens in the
> venturi  to act as 
> refrigerant for the carb body and that can cause
> freezing and ice  build up. Also, the 
> sudden expansion of the inlet air  as it enters the 
> crankcase just past the 
> venturi, can't be ignored either.
>  
> The dynamics are complex and depend on ambient
> conditions but the  concept is 
> fairly simple once the fundamental is understood:
> evaporation is  a cooling 
> process
>  
> MattK
> 
> 
> 
> 
> 
>  
> 

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