[Mgs] setting jets in su's

[Barney Gaylord]

I don't thik so.  He is using a fixed height for the jet and a fixed 
height for the fuel level.  Nothing is said there about how the fuel 
mixture is actually adjusted.  I suppose this quote was taken out of 
context, so some information is missing.  For instance, for the 
racing engine there may have been some dynomoter testing time to 
select exactly the right needle to suite the application so the 
mixture is correct when the jet is at the specified fixed 
position.  I would like to know how he arived at the specified 
dimension for jet height.


At 11:55 AM 3/3/2009 -0800, Rick Lindsay wrote:
>    I can't answer your question BUT I do know that the fuel level 
> in the jet is defined by the fuel level in the float bowl.  My 
> guess is that instead of equalizing the mixture by adjusting the 
> jets, he chooses to fix the jets and tune the float level.  The 
> advantage of that is that the profile of the needles will match.
>....
>
>--- On Tue, 3/3/09, Barney Gaylord <barneymg at mgaguru.com> wrote:
>
> > From: Barney Gaylord <barneymg at mgaguru.com>
> > ....
> > Just curious.  Does he (Craig Chima) ever get around to 
> suggesting how to adjust the fuel mixture without moving the jet?
> >
> >
> > At 02:23 PM 3/3/2009 -0500, Alan Costich wrote:
> > > ....
> > > If I may, the following is from Manley Ford:
> > >
> > > "I have saved the following advice I got from Craig Chima 
> several years ago.
> > > ....
> > > Fuel should be visible in the jet tube .... We actually set the 
> jet tube height relative to the top of the bridge and NEVER 
> subsequently touch the jet height .... We've found that top of the 
> jet should be between /.060 and .065 below the top of the jet 
> bridge. .... Once the jets are set relative to bridge height, the 
> next step is to set the fuel level in float bowls. ....
> > > -Manley Ford
> > > ....