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[Joseph Davis]

On the street Jose just go by reading the ground strap on timing. It's become such a good way of tuning for me that I don't know how I did without it before. It's just check the ground strap go by what it tells you and you will feel the car getting faster after doing it time after time man it becomes something tangible that you can really trust in and see the results go the way you expect them to.
  reading plugs man Its great thats all I can say about it.

That's what I usually do. The only thing I can say is maybe I'm reading the ground strap wrong(color change right at the bend is good timing?).

What I'm trying to say is that the butt dyno says the car feels a lot better/faster with more timing than what Joey is saying. I guess this can be due to Crome and its timing ghost?

Well, the timing figures I spit out are from timing ghost era Crome, and two cars on the dyno both of which wanted their cams retarded a tiny bit.

With eCtune, the 305 whp @ 12 psi Z6 wanted 10-11 degrees at 12 psi (about 12 degrees at 10 psi).  250 whp at 8 psi on a 60-1/sleeved 79mm Z6 and the timing was at 16 degrees, 13 degrees at 10 psi.  235 whp 9 psi Y8, 15 degrees.  Then again, eCtune does things a little different than Crome so take the figures with a grain of salt.

[ifly87]

What?!!!

On my vitara build this is my timing map. I dont have much experience tuning anything over 10psi, this is what I have been runing and it pulls hard, no hint of detonation, but i'm throwing a ton of heat into my exhaust. My manifold, and even downpipe has cracked in the past. Should I be running more timing? I thought this was kind of agressive. BTW I keep the boost around 21-22psi, but want to turn it up higher as soon as I figure out why the boost is fluttering so bad.

[lilpooh21186]

only way to tell if you need more timing is to look at the plugs how are they up top?

[Joseph Davis]

I've got a Vitara dyno tune on an Eclipse T25 on my laptop, eCtune, I'll try to remember and post it.  Those 7.5:1 motors like more timing, and even when they don't they aren't necessarily detonating.

[ifly87]

Please do post it up, I've got a much larger turbocharger though it would still be nice to see what other peoples timing maps are looking like.

So you say thats how you street tune ignition? make a pull and look at the color band on the ground strap of the spark plug? Ive read you want the color to change right at the bend is this correct?

[Joseph Davis]

Lowcam:






Highcam:






Wastegate:






High power of the day:







Of interest:

[ifly87]

Nice thanks. Just wondering, why do you put 0's in the parts of the timing map that you dont use?

[Joseph Davis]

I zero the lowest rpm boost columns in order to keep track of how much timing I add back in, after recurve) on the dyno.   I apply a pretty generous initial retard per psi, so when (from left to right) the numbers start decrementing it usually means I'm running out of octane.

[Joseph Davis]

Also, eCtune doesn't recurve past 0 degrees.

I'm on my phone (can't see pics) so hope that answers the question?

[ifly87]

Yeah thanks.

[SilverSRTSedan]

Sorry for the delay, It took this long to get a day without rain and even today it started raining on me while I was messing with it. Keep in mind I've never tuned on my own, only watched. So today was my first real tuning experience. Don't get me wrong, I get the concept and had no problems and decent results... see what you think.
I decreased the fuel numbers for the colums below where it normally idles and also removed fuel from the cranking fuel tables. Then took some timing away from the high v-tec map.

Also and before I hear the complaints... Yes I am running 22+ Psi on a stock honda map sensor... it seems to be working great right now, so I don't plan on changing it.

bin file #1 original after Joel tuned it : http://www.savefile.com/files/2093783
bin file #2 joel's tune that I tweaked, took away cranking fuel and a decent amount of timing as well as lowered the fuel numbers for low boost and low idle (car idles around 1100) : http://www.savefile.com/files/2093790

[BoostForLife]

Did it work or does it still flood?

[SilverSRTSedan]

Seems to be alot better, It used to go dead rich right after it started for a few seconds, then clear out. Now it only goes to around 12.9-13.5 then clears out to 14s. WE'll see how well it runs tomorrow morning when its dead cold again.

[d112crzy]

What version of Crome are you guys using? It's scaled using stock 240cc injectors. 

[BoostForLife]

I use 1.5 free.

[SilverSRTSedan]

And therein lies the problem i suppose? I mentioned I've never tuned and only watched today was my first attempt at tuning anything. I trusted my buddy as I have seen more than a few cars run great off of his tunes. Guess its time to find a professional or start reading some on my own. Anyone local wanna make a few bucks, I have access to a dyno on the cheap pretty much any saturday I want it and the street is always open. I was told it was Chrome pro but I'm pretty sure it is an old version as they have been tuning with the same program for like 5 or 6 years, used uberdata before that.

Something was always in the back of my head telling me to take the advise I give to everyone else and learn to do it myself so I could be sure it was done right, now I know I was right! F$%K!

[d112crzy]

Here's a good beginners guide on how to set up your map.
http://www.xenocron.com/install/CromeGuide.htm

Download the latest version from www.tunewithcrome.com