I have a non-smart V3 xede and I'm running the stage 0+ code.

I run only 94 octane pump gas. I have my pump gas timing map zero'd as you would if you were running race gas. I have it this way because I never see timing being pulled even on hot days. If you look at that map you will see its really only about a degree of timing change anyway.

Problem is I want to advance my timing while I'm on race gas (103). I cannot run more boost because I hit MAF cut. I cannot pull any more fuel out because I am already tuned to 12:1 on 103.

I need to actually add timing to get more bang out of my higher octane fuel.

Now I heard the xede doesn't like to have positive values in the timing chart. Is this truely the case? Is anyone running additional timing? Has anyone tried it?

Please help,
JJ

 

Add positive numbers in the timing map. Be very careful and use small increments! Adding timing won't cause any of the SMART related issues some people have.

Make sure you have an OB2 scanner available too.

 

i would really like to know this as well.

Evil, what are you using to read your timing?

 

Besides pocketlogger what unit can read and log timing acurately with obd2

 

http://www.auterraweb.com/scantools.html

 

Vishnu please help a brother out!

 

We can add in timing with a more agressive flash if need be, but there are very rare cases where this is actually needed, and I dont think your car would be one of those cases. If you advanced the timing more, you may be actually over advancing your car for the given boost level. Do you have the factory P0300 flash? If there is no reason that you cannot run an xedeflash, I would suggest this.

Sorry for not answering your question within 24 hours.

 

Dustin, i paid for a xede so i wouldn't have to send my ECU off for adjustments for things like this.

How would this work? you would advance the base timing in the ECU so then the offsets would be off of that timing value vs the stock?

So it is true, the xede can't function properly with positive values in teh timing table?

This contribute to why xede cars don't seem to make as much tq? I mean, with race fuel and meth injection, i would think i could run more than a slight advance in stock timing with a given boost level.

 

Remember that with a race gas map you are pulling out A LOT of fuel. When you pull out fuel, that also passively adds in timing. If you want to run even more timing than that, then its a good idea to add the timing into the ECU base map. With interceptors, it is always better to replicate, rather than predict the CAS signal.

 

Speak in retard terms please!

How many degrees of timing you guys seeing added to the stock timing when pulling out 23pts of fuel or so?

or, what are some numbers that you know...as far as fuel pts vs actual degrees of timing added?

 

There is not really a set formula for the question you are asking. The ignition advance you gain is due to the fact that you are moving into a lower load portion of the map when the MAF load is decreased. (fuel is pulled out from the table) For instance, at -17.2 points of fuel you will be in a portion of the map that runs X amount of timing. However, at -17.3 you may move into the next load cell down, which runs Y amount of timing. Taking note of this differences, and working with these differences is what keeps us around.

 

I am sorry for being a punk ***. I have edited my post. I had a bad day.

Thanks for the info....however.....Is adding timing to the timing table acceptable?

FYI - offsetting fuel -4 across the board really didn't lean out my AF that much.

 

ok, but just because you get into a lower load cell doesn't mean you are advancing the timing, right?

 

Not in every case, but in most the timing will be more advanced the lower you get in the load table.