[s-cars] Alternatives to RS2 Injectors - Are you a sprayer or a hoser?

[mlp qwest]

As a PS - re patterns & injector types etc., if you're interested, take a
look at the last two Q&A's at the very bottom of the webpage at
http://www.zdyne.com/forcedfactory.html

You may also note, especially in light of the exploding injector tale, that
there are counter balancing problems with simply raising fuel pressure to
agument deliveries.  I'm not sure where the limits are, but a guess is that
once one starts to push fuel pressure past 60psi, pintel injectors, unless
specifically designed for high fuel pressures, begin to experience opening /
closing cycle degradation.  It sounds like disc injectors are less
susceptible to high fuel pressure "interference" - as the Zdyne site cynicly
comments, "Side Note: We quickly discovered that dynamic fuel delivery
characteristics are not available from the after-market "injector experts".
What injectors do at 3 bar fuel pressure when wide open for 15 seconds isn’t
particularly usefull for injector recalibration, since this is not how they
are used in the car. Information of this type is considered proprietary by
injector manufactures and rebuilders because it is the core to their
revenue. So we did the injector studies ourselves. ...."  So I guess it's
the usual YMMV

"... Most OE systems maintain a fuel pressure of between 36 and 43.5 psi
over the intake manifold pressure. Fuel pressure can be raised to increase
the rate of fuel flow but this should not exceed 60 psi in most cases. It
takes 4 times the fuel pressure to double fuel flow. Raising the pressure to
extreme levels is very hard on the pump and can lead to leaks or failures in
the plumbing and injectors themselves..."
http://toyotaperformance.com/injectors.htm which also has an illustrate
gallery of different FI types

Mike



~-----Original Message-----
~From: s-car-listOn Behalf Of mlp

~Davie F, Robin S. and Minhea et al.,
~
~I know of a number of cars, both on and off this list, that have switched
~over to, and are running with alternative injectors supplied by RC
~Engineering. .....