[TR] Fwd: Re: Mystery Smoke Update

Alex ambritts at bellsouth.net
Mon Nov 21 19:52:11 MST 2011


I have a good friend is suspects a venturi effect possibly causing it. He is 
well more versed in that type of application being an engineer, so I am 
deferring to his knowledge base. I'll keep the list informed on this one. 
But as a side note, the venturi effect made be exacerbated by the methanol 
in the gas.

Not sure on the fuel mileage.......but my car never got great mileage 
because of the richness of the carbs.
----- Original Message ----- 
From: "Jeff" <fishplate at charter.net>
To: "Alex" <ambritts at bellsouth.net>
Cc: "*Triumphs List" <triumphs at autox.team.net>
Sent: Monday, November 21, 2011 9:42 PM
Subject: Re: [TR] Fwd: Re: Mystery Smoke Update


> On 11/21/2011 7:24 PM, Alex wrote:
>> Thanks Jeff,
>>
>> Dew point and temperature has been considered in this way. If it indeed 
>> caused the condensation problem, why then is it only on my TR3. My car 
>> has been parked next to 10 + TR3's at a show who all just drove as far as 
>> I have and my car is the only one with the issue. My car is running very 
>> rich to the point of going to a leaner needle.
>>
>> My carbs are like ice cube cold to the touch.
>
> Interesting...
>
> In general, the cooling effect comes from a temperature drop associated 
> with pressure drop...just like your air conditioner.  So, it's possible 
> that your venturi is somehow restricted...
>
> Or, excess fuel is keeping the intake air cool.  But it seems to me that 
> that would take a ~lot~ of excess fuel.  I'm too lazy to drag out my Heat 
> Transfer text, but it's a function of mass, for the most part.  What kind 
> of fuel mileage did you get on that trip?
>
> Just more thinking out loud...
>
> Jeff Scarbrough
> Corrosion Acres, Ga.


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