[s-cars] rs2 injectors

Brian Link BrianL at starsys.com
Mon Feb 23 10:59:50 EST 2004


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>
> Subject: Re: [s-cars] Alternatives to RS2 Injectors
> To: "Dave Forgie" <forgied at ae.ca>, <s-car-list at audifans.com>
> Message-ID:
> 	<5.2.1.1.0.20040221005258.020a5b68 at backus.info.fundp.ac.be>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
> 
> 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.
> 
> Flow increase isn't linear with pressure increase, otherwise it would
be
> easy to install 3B injectors and run them at 5 Bar for 600 HP....
> 
> Siemens or Lucas 37lb injectors should be fine for you, they flow
exactly
> 9% more fuel than RS2 injectors at 4 Bar rail pressure and RS2 boost
> levels.
> 
> 
> HTH,
> 
> Mihnea
> 
> At 16:29 20/02/2004 -0700, Dave Forgie wrote:
> >Mihnea and S-gruppees:  Brian Link gave me the following information:
> >
> >"I am running the Siemens deka 36lb/hr in my 3B.  And if you already
know
> >that all flow rates are based off of 3bar fuel pressure.  The AAN is
4bar
> >  and the RS2 is 3.8bar.  So a 36lb/hr injector at 3.8bar is
40.5lb/hr
> and at
> >4.0 it would be 48lb/hr."
> >
> >This raises the issue again.  What is the correct way to purchase
RS2
> >alternative injectors:  as 36 lb/hr at 3.0 Bar rating or 40.5 lb/hr
at
> 3.8
> >bar?  I want to buy inexpensive RS2 injector clones not something
that
> >needs  99% duty cycle or only a  40% duty cycle to do the job.
> >
> >Dave F.
> 


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