Tricking the computer and Advancing the timing...

[MustangEater8251]

Tricking the timeing...


Lets brainstorm and see if there is a cheap way we can do it with cheaply, without PCM reporgramming.

I have seen some things that can retard the timing, but looks the other direction.

More then jsut simple IAT timing tricker, maybe somehting that will work with that.

[MustangEater8251]

Preferable for OBDI cars... [img]smile.gif[/img]

Speaking of which anyone know if OBDI computers are similar enough between LT1 and 3.4Ls we might be able to use osme lt1 stuff, I doubt it since igniton system is completly different but hey... worth a try.

[ February 11, 2003: Message edited by: MustangEater8251 ]</p>

[AZ3.8Camaro]

I am sure with an o2 sensor or sim. and some resistors (preferably a setup unit you can adjust the resitance of)you could alter the a/f ratios.
But I am not sure about timing, other than the IAT sensor thing. Short of making a homeade maft+ of some sort.

[MustangEater8251]

I know the o2 can be used to modify the A/F ratio, you would need more then resistors to do that.

Waht else controls the timing other then the IAT?

[navyblue2000]

thought of maybe the coolant temperature sensor?

a cooler motor likes to increase the timing.

maybe set with resistors (dunno which ones you'd need) the temperature to always read around 140-145*

[MustangEater8251]

<blockquote>quote:</font><hr>Originally posted by navyblue2000:
thought of maybe the coolant temperature sensor?

a cooler motor likes to increase the timing.

maybe set with resistors (dunno which ones you'd need) the temperature to always read around 140-145*<hr></blockquote>

my temp is already there :metal:

Is there anything else?

Magnus? Aren't you doing computer tuning? anything else affect the tming?

[MustangEater8251]

I am assuming, certain things send a signal to the PCM and the PCM sends a signal somewhere ot set the timing?

Any idea what goes form where to where?

maybe we can do something after the PCM to modify voltage in a line and advance the timing.

[Magnus]

Not sure about 3.4... but perhaps MAP.

[MustangEater8251]

Think anything can be done with either the crankshaft sensors, ro camshat sensor?

What about the knock, sensor, I know it can retard the timing, think it can be used to advance it?

[Magnus]

no, no, and no.

[ZderekZ]

THANKS!