[s-cars] Fuel Delivery Questions

Dave Forgie forgied at direct.ca
Mon Dec 20 23:55:49 EST 2004


Brian:  Reading between the lines, it would appear that you are trying
to determine how much fuel you can run if the stock injectors were maxed
out with some software dictating high duty cycles.  I believe that that
is a road to folly.  You don't want to run you injectors maxed out, just
like you don't want to run your stereo at 9 or 10 (or 11 for those with
a Spinal TAP chip).  If you demand a too high duty cycle from your
injectors they will fail in various modes.

You want injectors large enough that they only have to run at a, say,
80% duty cycle to supply all the fuel you need for the desired
horsepower.   If you are trying to be frugal and avoid Bosch RS2
injectors for an upgrade, I suggest doing yourself a favour and going
with Racetronix 37 lb/hr injectors and software from Mihnea via Bob
Myers (on the list).

Dave F.

Brian Powell wrote:

What I am trying to calculate is how much fuel is delivered by a stock
injector when it is opened for a given time (in milli-seconds) as
compared to the RS2 injectors (with a different opening time) under
same boost conditions.



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