SpeedPro comments

[Jeff Bromberger]

you're right, it isn't terrible. we were able to still make it work. But
here's my problem with it: i've already gone through the trouble of setting
up the VE tables for naturally aspirated WOT performance.... i wish the
nitrous table was a pulse width to ADD TO the normal amount of fuel to
compensate for the extra nitrous... that way it would be much closer to a
flat line... you are spraying X amount of nitrous across the rpm range, you
need Y amount of fuel to feed that nitrous. with the speedpro way, i have to
figure out twice the torque curve of my motor... once with VEs and once with
PWs... luckily i can log PW while doing an NA run and use those values to
get me started...then i just bump them all up a constant amount to make up
for the nitrous... the fact that that works kinda proves my point :-)

as far as the AFR stuff, i really bothers me that they would put a box
called "Closed Loop Nitrous A/F Ratio" and let you enter a number if the
computer/sensor pair can't really do anything with this... people are much
more likely to not have there PWs dialed in perfectly because they assume
that the CL will save them... when i log the "actual a/f" i get seemingly
good values (but there's no correction)... so the sensor seems to
"understand" nitrous... that's why i don't understand why the box can't run
in closed loop.

>    I would like to say that the strategy
> of pw vs. rpm for a nitrous engine isn't so bad considering nitrous
> technology....I have been playing with nitrous for many years and although
> there is a science to it...it is still based on flow and cannot be closed
> loop at this time....I would love to hear arguments regarding
> this....especially with EFI......I have not seen a wide band O2 correctly
> measure AFR on a nitrous engine for many reasons I guess I am still
> supposing about....and just so were not talking about theory I will state
an


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