Has any1 advanced the timing on the Z? I remember a thread wayyyy back in the day concerning this but I wanted to get some current feedback on this. I heard the safe amount is about a +2 advance. Any1 notice any improvement, or any dynoable improvement? Thanks for any input!

--Justin

 

It only advances the timing long enough for troubleshoting engine problems, thus the chage gets reverted in time buy the ecu. To really change the timing you will have to get a flashed ECU.

 

Or the SMT6!

 

Ive had it advanced 2 deg., but it really isn't noticeable. I'm glad the dealer did it free for a good feedback rating. They were going to charge me $90. It's not worth paying for, unless you drag your car. Even then, I don't know.

 

Really?

 

There are two ways the dealer can change your timing. One is permanent and the other is not. My dealer did it for free for me the permanent way. It took less than 5 minutes. My cats are out and he checked lean/rich condition and said it looked good/normal. I think everyone has hyped up a bunch of misinformation on the Z and should not overcomplicate the car. Why should I believe the shop guys at the dealer? Well, I sat in the passenger seat while the guy showed me how to do it and considering the dealership belongs to my father, I know that I am not getting BS'd at anytime.

By the way, the timing advance is very noticable. The car is much faster; maybe that is just a good combo with cat pipes (lsdunique) I don't know. But the car is smoother and pulls harder. Find a dealer who will do it for free. They are out there.

 

Quick question Mr. Potato Head,

Did you do the permanent advance before or after the lsd's? If so did you notice it then as well? From what I can tell, the advance should be helping the low end & mid range torque giving you that oomph right?

Guess I'm just trying to see if I can determine if the advance does give a noticeable improvement seperately from anything else. It makes sense to do is as it should benefit the low & mid range torque w/out cutting off the top end. Thanks for your feedback guys and especially Mr. Potato Head, much appreciated!

 

Could you find out how. This would be cool, because I was shown the Consult tech manual (Z33 specific pages) where it discusses timing advance / retard and it specifically said that this procedure would temporarily change the timing. IF there is another procedure I would like to experiment with this.

Thanks!

 

I'm a dunce when it comes to cars, so can someone explain to me what exactly does timing do and the importance of advancing it?

 

Physical timing screw to permantently advance the timing by two degrees right?

 

since the VQ has a timing chain, you really cant alter the timing as you could with a honda (with timing belts and adjustability externally), typically the only way to advance the timing is with a Consult or through the core ECU program...

 

I had the cat pipes in for about 500 miles before I had the timing done. I will call down and ask the guy what is the different step in permanent/temporary adjustment of the timing with the Consult II when I can. The dealership is in San Antonio and I am in Dallas.

 

I have my timing advanced and its great but I don't know if they do it the permanent way or not... I check the timing a couple of hundred miles after and it was find but know more than 3000 I haven't check its on... Pot. Head check the steps to follow w the perm. adj please!

thanks!

 

I had mine advanced 2 degrees. It is permenent through the Consult.
I noticed better initial throttle response, and the car pulls harder in the upper rpm range. Had it done a couple of months ago at my dealer. Did not charge me, and asked how much advance I wanted. You can actually advance the static timeing up to 5 degrees...

 

The +5 degrees is for tunning or troubleshoting... is a margin that the consult II have if the car need some tunnig (for any car the consult II can handle) the Z only handle +2 degrees... if you put it in +5 the car readjust to +2.

 

Ignition timing is a measurement in refference to when the spark plug fires in relation to the angle of the crank. This is measured in degrees in relation to the crank being at top dead center, or TDC. Timing is advanced before top dead center, or BTDC to acheive burning of more fuel before the end of the power stroke and the begining of the exhaust stroke.

Edit: 100 posts and I don't even own a Z yet. Weeeeeeeeeeee

 

More power and less unburnt fuel coming out the exhaust

 

If you put in 5 degrees of static timing with the Consult programmer, ithe ECU will not readjust the timing back to 2 degrees. The only way the timing can be retarded from whatever you have programmed it to be is if the knock sensors detect spark knock, and only then will the timing be retarded to reduce or eliminate the knock...

 

Thanks for the clarification guys.

 

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