Classic Mustangs List Archive

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Mail From: p2kandm2 (p2kandm2

12V Vs <12V for an electrical connection.
I agree and disagree with the voltage statements for the electrical connections.
I agree that there may not be a full 12 volts, however...

I disagree that it is "required" for the choke's proper operation - and - here is why.
- - the bimetalic spring (that operates the choke) works using *both* (general) heat from the engine (under hood temp.) and heat generated from/by the addition of electricity.
Therefore - Whether you supply "full or partial" voltage to the choke's bimetalic spring, the input of electricity to the spring *will heat it up faster* than if you let it heat up with the engine.
And, yes, it is possible to have voltage so low that it would not assist in heating the spring.

OK, my vote is on the lower voltage and, again, - here is why.
- - the lower voltage will still cause the spring to open the choke plate faster than the ambient/engine temperature will and when the engine is at full operating temperature the additional heat will fully open the choke.
**Remember that the spring (by itself) is to have the choke fully open when there is an consistant/constant "ambient" (under hood) of ~70 degrees, or higher.**
Plus, those of you in the northern latitudes will benifit from a not fully open choke when those exterior ambient temperatures prevent under hood temperatures from reaching 70 degrees.
And, for this same reason, when the air temp. is so low the that intake's air is too dense (too cold), for the normal fuel delivery/mixture of a fully open choke plate, this will prevent a "too lean" operation and will improve driveability on those (really, really) cold days of "0" or below.

KandM

Ps. For those of you north of "here", if you must, you may (mentally) slap me now, I used to live in Colorado, now I live in Florida - my TBI system uses water temp to determin how much extra fuel to add to my 1970 4V, in my 1971 convertible.
- Right now - I'm glad I don't live in Colorado... KP


-----Original Message-----
>From: "Michael J. Kupec" <mkupec at blueovalcorral.com>
>Sent: Feb 5, 2007 10:23 AM
>To: kandm <p2kandm2 at earthlink.net>
>Subject: Re: [CM] Carburetor is on the web.
>
>Yeah, I started thinking about that after posting it, but I used that
>connection with a Holley 600 that I put an electric choke on it and it
>worked well for my needs.
>
>Michael J. Kupec
>"Ya'll better hold on, cuz I'm gonna have to stand on it."
>
> _____
>
>From: classic-mustangs-bounces at lists.twistedpair.ca
>[mailto:classic-mustangs-bounces at lists.twistedpair.ca] On Behalf Of MICHAEL
>MASTROIANNI
>Sent: Monday, February 05, 2007 9:47 AM
>To: Michael J. Kupec
>Subject: Re: [CM] Carburetor is on the web.
>
>
>I have heard that the "STA" terminal does not put out enough voltage to
>fully open the electric choke on a lot of aftermarket carburetors. Just
>check the output wih a meter to be sure.
>
>I went a mechanical choke.
>
>Mike
>
>----- Original Message -----
>From: Michael J. Kupec <mailto:mkupec at blueovalcorral.com>
...balance of text removed for length...