[s-cars] question for those with boost gauges

[David Kase]

I didn't know that it being common meant it was correct.  I guess my 
hang up all stems from my Vibes professor that drilled it into our heads 
that torque is lb-ft, not ft-lb...

P.Eng. ?  Are you Canadian?

David Kase
Engineering Manager
PDQ Industries
717-656-4281
717-656-8749 (f)
www.pdqlocks.com



Dave Forgie wrote:

>Dave:  I am sure that you must know that, in Engineering-speak, the "of
> mercury" is typically silent when discussing vacuum.
>
>Likewise when discussion air pressures and losses in an HVAC system "of water column" is silent when saying the head loss is, say, 5 inches.
>
>;>)
>
>Dave F. Ph.D., P.Eng.
>
>  
>
>>>>David Kase <davekase at pdqlocks.com> 11/30/06 03:50AM >>>
>>>>        
>>>>
>He does mean "inches of mercury" (unless something is horribly wrong) 
>and I think you mean "inches of mercury of vacuum", not "inches of 
>vacuum".  There is no such thing as an inch (or pound) of 
>vacuum/boost...  :-P
>
>Dave Kase
>anal engineer...
>
>
>
>Dave Forgie wrote:
>
>  
>
>>Mike: I think you meant 13 inches of mercury (Hg).  Anyway, at idle it varies. When the car is first started and the rings, etc. haven't fully expanded (with heat), I will get in the order of 10 or 12 inches of vacuum.  When the car is warm, it will be in the 14 to 16 inches of vacuum range.  They only time I get 20 inches of vacuum is when the car has been run hard and then the throttle is closed quickly. 
>>
>>I have both an AudiMeter Phantom and a Kevin Day TDS-1 digital information system (with digital boost/vacuum) to confirm this data.
>>
>>YMMV
>>
>>Dave F. 
>>
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>> 
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