Lil Fuel boost

[Bruce Plecan]

----- Original Message -----
Subject: Re: Lil Fuel boost


| Dave Zug wrote:
| > I understand the CTS and IAT affect fueling slightly.. If one were to,
| > saaay, install a sneaky pete NOS bottle directly skwirting into the air
| > intake, in general, what percentage of fueling increase can be had by
| > quickly falsifying a 5 degree CTS or IAC on a 70 degree day?

None that you can measure on a AUJP chip in a 730 ecm.  Now going to -40dF
is another matter.

is it even
| > worth it? and which would be better to fool, IAC or CTS? (less negative
| > effects on other operations).

Fool the IAC idle air controller?????
MAT or CTS?, both make large changes.
You could use the very bottom range of the IAT for weater that you normally
won't
se say -35dF, and use a switch to go to that particular MAT correction.

| > Part 2:  In my work, we commonly add programming to ignore rapid sensor
| > transitions (not only ultra high and ultra low readings, but rapid
| > transitions as well), and mark them as BAD.  has anyone seen this type
of
| > error checking that might hamper my little trick?
| >
| > Part 3:  inject NOS before or after the MAF?? I say before... but
systems
| > commonly use after.

AFTER, NOS is cold will kill the electronics with instant freezing.
If nothing else, will coat sensor ever so slightly.

| My experience is that CTS has a much greater effect on fuel/spark
| parameters, and pulling the connector off or suddenly changing the
| value usually gets results pretty quickly.

Instantly in a 730 cal.
Grumpy

  Simple flip of a switch to
| send fixed value to ecm may be easier.  I'm talking in general, not
| specifically for your ecm.
| Shannen
|
| > The application is '165 5.7L TPI, ARAP bin.
|