Newest Log/AFC/AFR/Timing Input

[Xit40]

Ok well I finally put my new injectors in and was hoping to get some opinions on how my logs are looking and any advice people have for me. Everything is listed in my mod list and I was tuning at 15psi as I heard it was easier to tune the lower the boost. I'm looking to run it at 18psi so I'm thinking it should be good where it is once I turn it up possibly adding a lil fuel down low. I read I might also be able to squeeze a lil more timing out up high by leaning it out a touch. What do you think? I just want to keep it safe. Well anyways check it out. It seems pretty decent to me for right now. Any help comments are welcomed

RPM<A><A><A><A><A> Timing<A><A><A><A><A> O2 Sensor Bank1
2781 <A><A><A><A><A>19 <A><A><A><A><A>.92
3035 <A><A><A><A><A>11 <A><A><A><A><A>.94
3347 <A><A><A><A><A>7 <A><A><A><A><A>.94
3687 <A><A><A><A><A>9 <A><A><A><A><A>.94
4011 <A><A><A><A><A>11 <A><A><A><A><A>.94
4355 <A><A><A><A><A> 11 <A><A><A><A><A>.94
4667 <A><A><A><A><A> 11 <A><A><A><A><A> .96
4976 <A><A><A><A><A> 11 <A><A><A><A><A> .96
5273 <A><A><A><A><A> 12 <A><A><A><A><A> .96
5570 <A><A><A><A><A> 14 <A><A><A><A><A> .96
5851 <A><A><A><A><A> 17 <A><A><A><A><A> .96
6113 <A><A><A><A><A> 18 <A><A><A><A><A> .96
6343 <A><A><A><A><A> 19 <A><A><A><A><A> .96
6578 <A><A><A><A><A> 20 <A><A><A><A><A> .96

 

[spyderturbo007]

I'm looking to run it at 18psi so I'm thinking it should be good where it is once I turn it up possibly adding a lil fuel down low.

Looks good.

Add a little fuel in the lower rpm range to see if you can get rid of that knock and turn up the boost 1 or 2 psi at a time. Most people shoot for 8 - 9 as the lowest timing value in the log (with 550's).

 

[Xit40]

Thanx for the input. I'm hoping it will stop being insanely hot here so I get get it closer to where it should be set all the time. I don't want to tune it at 18psi when it's 85 degrees outside. I'll try putting a little bit moer fuel in around 3400 since that's where I hit full boost. You think .96v is decent for the O2 sensor value? Hopefully I can get a decent 1/4 mile time in now that I'm not super rich.

 

[spyderturbo007]

Looking at the O2 voltage and tuning by that is almost pointless.

It's a narrowband sensor and isn't very accurate. You can use it to get a "decent" approximation.

The reason I said to add a little fuel in the lower rpm range was that you timing seemed to dip a little lower than normal. Most guys shoot for around 10 degrees as the lowest value.

Just be careful tuning at a significantly lower temperature than you tune the car at. The lower the temperature, the cooler the intake charge will be. Ever notice how your "butt dyno" tells you that your car is so much faster in the winter. Well, it actually is. So you don't want to tune for maximum boost at 40 degrees, then go out and start doing WOT pulls at 90 degrees.

 

[DSMTalonAWD51]

Actually its safter to tune in cold weather. Cold air is more dense, so if you tune at night with cold air, then during the day when air is less dense, you may be slower, but you will be on the rich side. If you tune in hot weather, then at night you are going to running lean.

 

[CanadianTSi]

Actually its safter to tune in cold weather. Cold air is more dense, so if you tune at night with cold air, then during the day when air is less dense, you may be slower, but you will be on the rich side. If you tune in hot weather, then at night you are going to running lean.

Indeed, I only tune on very cold nights so I know that any other time I won't be any leaner.

I like to keep my car at .96 as it is a little rich but safe.