Re: [T3] Compression Ratio Recommendations

["Keith Park" <topnotch@nycap.rr.com>]

<x-charset iso-8859-1>OK,

Does the Berg semi-Hemi breath better than a stock head?

Keith

> Well, I kept the previous discussion limited to the wedge chamber only.
> 
> Power is made in a few ways.  One of them is thermal efficiency.  
> Another is volumetric efficiency, i.e. "breathability."  The hemi 
> heads can flow much more air than a wedge.  Although thermal 
> efficiency does drop (lovely gas mileage on those muscle cars :-), the 
> gain in breathing offsets that for more power.
> 


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