Re: [DMCForum] Fuel requirements

["Jim Strickland" <ihaveanaccount@xxxxxxxx>]

Can't you read
I deal with stupid people every day who can't read
why do I have to explain everything

:)
signed, 
Greg, timnagin@xxxxxxxxxxxxxx



On Wed, 20 Aug 2003 00:24:08 -0400 "timnagin" <timnagin@xxxxxxxxxxxxxx>
writes:
> Yep, I misread what you were trying to convey in your message.
> 
> Greg
> 
> -----Original Message-----
> From: Jim Strickland [mailto:ihaveanaccount@xxxxxxxx]
> Sent: Tuesday, August 19, 2003 10:44 PM
> To: DMCForum@xxxxxxxxxxxxxxx
> Subject: Re: [DMCForum] Fuel requirements
> 
> 
> a very interesting (though completely irrelavent) fact.  
> 
> Volumetric efficiency (VE) is measured using air flow, fuel flow, 
> and
> displacement.  It basically measures how much air/gas is making it 
> into
> the cylinder.  The chevy 283 would "breathe" 283 ci of vapor if it 
> had a
> VE of 100%.  
> 
> Efficiency rises when an engine is better tuned so that the intake 
> works
> better.  ie, porting, grinding, 2 valves/cylinder, DOHC, and not as
> importantly,  the exhaust works better (less backpressure).
> 
> You can work backwards to figure out the VE of an engine because the 
> VE
> of the engine is directly proportional to the engine's torque.  SO
> basically, the higher the torque, the higher the VE for a given
> displacement.  
> 
> Jim
> 
> On Tue, 19 Aug 2003 20:15:25 -0400 "timnagin" 
> <timnagin@xxxxxxxxxxxxxx>
> writes:
> > >Apparently the
> > >volumetic efficiency (effiency of the output power to the 
> > displacement of
> > >the engine) of the s2000 is almost 100%.  I guess this metric was
> > >determined many years ago, when american engines couldn't manage 
> > 80%.
> > 
> > I am not arguing your other points, but I am not sure if I am 
> > understanding
> > you or not.  From what I remember, the 1956(?)Chevrolet 283 was 
> the 
> > first
> > engine, at least in the US, to develop one horsepower per cubic 
> > inch.  283
> > cid / 283hp.
> > 
> > Greg
> 
> 
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> 


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