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Old 25-11-2017, 10:24 AM
jondee86 jondee86 is offline
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Join Date: Dec 2015
Location: New Zealand
Posts: 78
Thumbs up Re: Nozzle spray angle...

You must be using slow sensors. I "accidentally" hit WOT in first gear
yesterday, and my AUX Temp (same sensor as IAT) went from 70 to
100degC in just over 3 seconds according to my log.

Thanks for the input. As I don't have any practical way of knock detection
due to the amount of mechanical noise in the knock spectrum, I shall have
to leave ignition optimising to the dyno tuner. However, I will try the 50/50
w/w mix when I refill the tank. Currently I have 1 x 0.6 nozzle just after the
s/c discharge and 1 x 0.4B nozzle in the last bend before the intake manifold.

The intake manifold has an ugly rightangle bend which will be quite good at
inertial separation of droplets. My intention was that the 0.6 nozzle would
contribute to charge cooling and the 0.4 nozzle would get some droplets into
the combustion chamber.

If I can find a clear stretch of road, I want to do a WOT run using 2nd, 3rd
and 4th gears to see how high the s/c discharge temp will go. The s/c is
good for up to 150degC discharge temp according to the manufacturers.
Depending on what I discover, I may have to look at implementing a small
nozzle in the s/c intake manifold.

Cheers... jondee86
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