[s-cars] rs2 injectors

Brian Link BrianL at starsys.com
Mon Feb 23 11:37:48 EST 2004


Yep, you are right.  I forgot to take the square root.  


Brian Link


> -----Original Message-----
> From: mlp qwest [mailto:mlped at qwest.net]
> Sent: Monday, February 23, 2004 9:08 AM
> To: Brian Link; s-car-list at audifans.com
> Subject: RE: [s-cars] rs2 injectors
> 
> Brian, No. I think you use the square root of 1.33, @ 1.153265, as
your
> multiplier.
> 
> 1.153256 x 36cc = 41.5 cc/min
> 
> Try looking at www.rceng.com -> technical info page for some suggested
> conversion samples.
> 
> 2nd, I believe the above formula "assumes" the pressure change
involved
> will
> not otherwise significantly affect injector operation, in other words
it
> simply reflects what pressure does with a given nozzle orifice, not
> potential mechanical effects on opening/closing cycles, etc. that
would
> begin to occur as fuel pressure reached "extreme" levels.  My guess,
and
> its
> just a guess, is that for most injector setups not otherwise designed
for
> it, approaching or exceeding say 100 psi would be pushing those
limits.
> 
> Mike
> 
> ~-----Original Message-----
> ~From: s-car-list On Behalf Of Brian Link
> ~
> ~Mihnea,  I think it is correct..
> ~
> ~4.0/3.0  = 1.33    1.33x36 = 48???
> ~
> ~Brian
> ~
> ~> Date: Sat, 21 Feb 2004 00:55:37 +0100
> ~> From: Mihnea Cotet <mik at info.fundp.ac.be>
> ~>
> ~> Dave, the pressure increase calculation isn't correct, the right
> ~formula
> ~> is:
> ~>
> ~> sqrt(new pressure/old pressure)*old flow=new pressure flow.
> ~>
> ~> So this means that 36 lb/hr @3Bar injectors will flow 41.5lb/hr at
4
> ~Bar.
> ~>
> ~
> 



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