Mtngoat9

Hi all,

been reading up on some folks going with different advances than stock from the book.

Since the 'puter varies the ignition timing anyhow, what does changing the baseline accomplish? Just askin.

If I want to try this out, I do the jumper bit at the diag block, and just try a couple degrees earlier or later..earlier, presumably for a bit more top end?

I know I don't want to get into ping territory, how much have other folks put in when running 87 gas and what did you think of your results?

DeathCougar

iTrader: (23)

Typically with the V6, I have found that you cannot advance the timing much unless you run a higher octane fuel.

If you want to run cheap gas, leave it at 5 degrees.

If you run a better higher octane gas, you can bump it up to as much as 12. I worked on a buddies 92 and with 92 octane and some new OEM plugs/wires/cap/rotor, we got away with about 12 degrees before it started to ping.

camo31_10.50

did you notice any differences in power when you advanced the timing with 92octane? just curious...what's the point in messing with timing if ya don't get a gain?

DeathCougar

iTrader: (23)

A few HP difference is a lot, especially if you don't have to do any real work to do it.

Better throttle response, and slightly quicker acceleration not to mention better overall runability

camo31_10.50

MPG's get affected any?

not something i'm going to be doing though, especially since 91octane fuel is about $.30 higher than 87octane lol

Mtngoat9

I was checking it as part of my due diligence in solving my lack of power issue (renewed ignitor thread) and set it at the 10 degrees from the FM, (with the timing jumper in place in the diag block.)

Where did you come up with the five degrees?

DeathCougar

iTrader: (23)

Sorry, I was thinking 22RE.

3VZ uses 10 degrees timing, or 8 without the connector shorted

http://www.ncttora.com/fsm/1993/ignition/13distribu.pdf

12 was still all I could get out of it without Ping

Mtngoat9

Ok, that makes more sense! Thanks for the update.

So, it's sounding like what i'll do is short the connector, and tweak it to 12 and drive a a days making sure I listen closely for pinging before I decide wether to leave it there or not.

Mtngoat9

Tweaked the timing to 12, pulls a bit harder and starts easier. Still not running right, but I like 12 better than 10.

blake.nemitz

i run mine at 15-17, i also clicked my afm cog one click rich to prevent pinging, egr delete, couldnt be happier, BUT in colorado we have high quality fuel our 87 rivals californias 91 or better, i run 87 or 91 from a station that isnt a shell. if you want to be safe 8-10 is stock base, i would advance it to 12-13 and see how you like it, anything past that without other tweaks could lead to pre detonation

sb5walker

12 degrees advance is probably the best overall timing for the 3VZE. Snappier throttle response & a bit more power. If the motor is running right, you can still burn 87 octane at that setting. Some folks run 14 degrees for slightly more boost, but I would burn 89 at that setting. (Personally, I think 14 is pushing things maybe a bit too much on this motor, but if you had headers or mls gaskets, it would probably be fine.) When getting an emissions test, set it back at the stock 10 degrees for the best emissions performance. All settings are with jumper attached, of course.