DIY WB update

[Bruce]

Speaking of lean cruise.
I can't find any real big gains in going real lean anyway.  Still need to
burn x amount of fuel to make a given amount of power to actually move the
car.  Maybe, better results, in a lighter car, but then you give away all
the road hugging weight.  the instant you have to run more throttle opening
from the leaner AFR, then your using more fuel anyway due to the greater air
flow.  While you might run 10% leaner, if you have to use more throttle
opening you might be using a larger total amount of fuel.
Just completely the opposite of what pumping loses would dictate.
Again, theory falls short of real life....
Bruce




From: "Greg Hermann" <bearbvd at cmn.net>
Subject: Re: DIY WB update
> >15:1, is basically a take off on the 14.7, nonsense.
> Yep!!
>  They use that for
> >Emissions, and also they just AVERAGE that.  ie, toggle across that for
> >keeping the converter lit.  Tuned properly you can run leaner then that
at
> >cruise.
> Yep again. The better and faster burning the chamber, generally the leaner
> you can get away with for economical cruise. Can vary from 15.7 up to 17
or
> even leaner with everything _JUST_ so.
>  The 12.5-13:1 might keep a N/A engine happy, but I know of lots of
> >turbo motors that like richer then that.
> Yep again, but then again, some engines with really good chambers,
accurate
> fuel distribution, and really good fuel atomization can make best power as
> lean as 13.8 or 14 (talking NA, here).
> YMMV
> Greg

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