Need help with first log on new turbo

[sickguy]

Hey guys, I just put in a new Evo3 turbo, 550cc injectors and 190 fuel pump, please look at my profile for all the upgrades. I'm a newbie here and never tried tuning at all. Here is my first log with everything set to -10, 16psi boost on 91 pump gas.

RPM Timing Throttle O2
2340 32 12.57 0.04
2384 26 33.01 0.82
2456 21 96.27 0.92
2540 21 96.66 0.94
2628 22 96.66 0.94
2716 22 97.05 0.94
2820 22 96.66 0.92
2936 20 96.66 0.94
3056 20 97.05 0.94
3160 19 96.66 0.94
3288 16 96.66 0.94
3420 15 96.66 0.94
3552 13 97.05 0.96
3676 11 97.05 0.96
3824 11 97.05 0.98
3968 10 97.05 0.98
4128 10 97.05 0.98
4264 10 97.05 1
4400 10 97.05 0.98
4564 10 97.05 1
4688 10 97.05 0.98
4824 10 97.05 1
4952 11 97.05 1
5120 11 97.05 1
5236 11 97.05 1
5360 13 97.05 1
5492 14 97.05 0.98
5644 15 97.05 0.98
5788 16 97.05 1
5904 16 97.05 0.98
6028 17 97.05 0.98
6152 19 97.05 0.98
6264 19 97.05 0.98
6376 19 97.05 1
6496 18 97.05 0.98
6608 19 97.05 0.98
6712 19 97.05 0.98
6820 19 96.66 0.98
6200 19 0.79 0.7

I read quite a few good articles on tuning by kpt4321 and some other guys, but I'm still not really clear. How do I know in which RPM range is rich or lean? And what kind of timing am I aiming for? Please give me any input or point me to some more articles with detailed guides on tuning.

Thanks!

 

[Burnett03]

you are knocking, you can tell because your timing is suffering, 11 degrees BTDC timing at WOT is not great.

 

[MindBlowin03]

Your probably knocking in the midrange, but your top end looks ok. All I would say is read the dyno-tuning article enough times that you understand it and then tune your car the right way. We can give you pointers here and there, but its not gonna help much.

 

[sickguy]

Yes I did read all the dyno-tuning articles and then some related posts under this thread and pocketlogger forum. But I can't find any info. on what timing advance indicating knocks and if it knocks should I add or take out fuel. Also what will a near perfect timing curve look like from 2.5k rpm to redline? Is it from 9 at 3k rpm to 16+ redline in a linear pattern? That's what I got when I logged my old T25 turbo with stock fuel pump and injectors. So should I tune it to look like my old timing curve?

Thanks for you guys who gave me good info. Pls keep it coming, I'll appreciate it.

 

[DSMnewbi]

My guess is you're knocking from being rich, try richening it, if the timing goes down further you know it's from rich knock (it won't kill your car.) From your o2's it looks very rich also. So, test out if it's rich knock, if it is start lowering the SAFC untill you get about 15 deg timing or/and .94 volts on o2 since that seems to be where the knock isn't there.

 

[CanadianTSi]

Looks like your pretty rich, either turn up the boost or lean it out some more.

 

[sickguy]

This is the RRE guide that I followed with similar setup, just trying. The settings are pretty much -20 , the second one on this link http://www.roadraceengineering.com/newafcsetting.htm



RPM Timing TPS O2
2840 24 96.27 0.04
2948 24 96.66 0.04
3060 23 96.66 0.06
3168 22 96.66 0.04
3288 21 96.66 0.04
3436 19 96.66 0.06
3620 16 96.66 0.42
3812 14 96.66 0.86
3988 13 96.66 0.9
4140 9 96.66 0.92
4304 9 96.66 0.92
4464 9 96.66 0.92
4620 10 96.66 0.94
4788 10 96.66 0.94
4932 10 96.66 0.94
5092 10 96.66 0.94
5252 11 96.66 0.94
5408 13 96.66 0.94
5548 13 96.66 0.94
5712 13 96.66 0.94
5868 14 96.66 0.94
6000 14 96.66 0.94
6132 15 96.66 0.94
6272 15 96.66 0.94
6388 14 96.66 0.94
6508 15 96.66 0.94
6620 14 96.66 0.94
6724 14 94.7 0.96
6652 14 94.3 0.96

 

[DSMnewbi]

You need more fuel 4100-5200. Maybe 1 or 2 more %.

 

[sickguy]

Yes I expected it to be rich because I set everything to -10 for baseline tuning. The problem is I don't know how to read timing e.g. What's timing am I aiming for between 3500 - 4000 rpm range and what for 6000-6500 rpm etc. Should I make it to look like this which I logged on my T25 on stock fuel ?

2796 16 92.34 0.94
2908 9 96.66 0.96
3084 6 96.66 0.98
3240 8 96.66 0.98
3388 9 96.66 0.98
3540 9 97.05 0.98
3668 9 97.05 0.98
3864 9 97.05 0.98
4028 9 97.05 0.98
4168 10 97.05 0.98
4328 10 97.05 0.98
4452 10 97.05 0.98
4624 10 97.05 0.98
4768 10 96.66 0.96
4928 10 97.05 0.96
5072 11 97.05 0.96
5228 13 97.05 0.96
5340 13 97.05 0.96
5500 13 97.05 0.96
5636 15 97.05 0.96
5772 15 97.05 0.96
5904 16 97.05 0.96
6016 15 97.05 0.94
6104 15 23.58 0.76

So for example I should aim for a timing of 10 from around 4100-5000 rpm ? Sorry for so many logs and questions, I just hope I can make it clear enough so I won't make any costly mistakes. Thanks again.

 

[DSMnewbi]

I tune for 15 deg. across the board. If I had a 2g I'd go pick up a $15 volt meter and hook it up to my knock sensor.

 

[trbotaln]

can talk more about hooking up a volt meter to the 2g knock sensor. I have never heard of this and it may solve a lot of my problems.

 

[DSMnewbi]

Just go out buy a volt meter and tap it into the #60 pin for the front o2 sensor..

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[sickguy]

2 more pulls I just made the first one is 17 psi on 91 pump gas.
I used

RPM Corrections

1k -14
2k -14
3k -14
4k -17
4.5k -17
5k -17
6k -20
7k -20

_______________________________________________


2384 26 33.01 0.82
2456 21 96.27 0.92
2540 21 96.66 0.94
2628 22 96.66 0.94
2716 22 97.05 0.94
2820 22 96.66 0.92
2936 20 96.66 0.94
3056 20 97.05 0.94
3160 19 96.66 0.94
3288 16 96.66 0.94
3420 15 96.66 0.94
3552 13 97.05 0.96
3676 11 97.05 0.96
3824 11 97.05 0.98
3968 10 97.05 0.98
4128 10 97.05 0.98
4264 10 97.05 1.00
4400 10 97.05 0.98
4564 10 97.05 1.00
4688 10 97.05 0.98
4824 10 97.05 1.00
4952 11 97.05 1.00
5120 11 97.05 1.00
5236 11 97.05 1.00
5360 13 97.05 1.00
5492 14 97.05 0.98
5644 15 97.05 0.98
5788 16 97.05 1.00
5904 16 97.05 0.98
6028 17 97.05 0.98
6152 19 97.05 0.98
6264 19 97.05 0.98
6376 19 97.05 1.00
6496 18 97.05 0.98
6608 19 97.05 0.98
6712 19 97.05 0.98
6820 19 96.66 0.98
6200 19 0.79 0.70

 

[trbotaln]

I have the Apex turbo timer that can read O2 voltage so should I just hook it up to pin #60. Also is their a ground for the front O2 sensor?

 

[sickguy]

Then I made adjustment to the 7k range changed from -20 to -18, and turned up the boost to 18 psi on 91 pump gas.

RPM Corrections

1k -14
2k -14
3k -14
4k -17
4.5k -17
5k -17
6k -20
7k -18

____________________________________________________________
2464 18 60.9 0.92
2564 19 96.66 0.90
2656 20 96.66 0.90
2768 19 96.66 0.90
2872 19 96.66 0.90
2992 17 96.66 0.90
3144 17 96.66 0.92
3268 16 96.66 0.90
3392 15 96.66 0.92
3548 13 96.66 0.92
3704 11 96.66 0.94
3896 10 96.66 0.94
4052 10 96.66 0.96
4260 10 96.66 0.96
4420 10 96.66 0.96
4592 10 96.66 0.96
4728 10 96.66 0.96
4920 10 96.66 0.96
5072 10 96.66 0.96
5244 10 96.66 0.96
5416 12 96.66 0.96
5572 10 96.66 0.96
5720 12 96.66 0.96
5860 11 96.66 0.96
6000 11 96.66 0.96
6104 13 96.66 0.96
6252 11 96.66 0.96
6356 11 96.66 0.96
6496 13 96.66 0.96
6760 13 97.05 0.96
6584 13 92.73 0.96
5988 34 0.79 0.70

 

[sickguy]

For some reason the full boost is reached at around 4k rpm, I expected it to be lower than that on Evo3 turbo, but not sure why. Any comments on the logs?

 

[trbotaln]

Your log looks a little better but it looks like it is knocking a little bit in the top end. I think that you are running a little rich because your O2's are at 1.0 volts.

 

[sickguy]

Sorry pls disregard the log I made with 17 psi I think it was saved in wrong file it's the old one, so just look at the last log I posted please.

 

[DSMnewbi]

Try this...

1k -14
2k -14
3k -14
4k -14
4.5k -14
5k -14
6k -18
7k -18

And post another log.

 

[sickguy]

cool i'll try it today and post the log. Later.

 

[98spydert]

Have you checked for boost leaks?

 

[CanadianTSi]

You should definitly figure out the slow spool problem, are you sure you don't have any boost leaks?? I would see 15psi just past 3000 with my Evo 3.

As for your timing it should dip down to around 9ish and then should steadily climb up to 18-20, if it ever goes down or stays the same for a while this is an idication that your are knocking.

 

[sickguy]

I haven't checked for boost leaks after the turbo install, it could be the intercooler pipe or manifold is leaking, I'll check soon. I guess I'll tune it after that. Thanks guys.

 

[sickguy]

Hey guys how this one look? Seems ok to me except the unusual spike at 4200 rpm and also I think I got some knocks between 5500-6000. Let me know, thanks.

RPM Timing TPS O2

2488 22 96.66 0.92
2592 22 96.66 0.92
2700 22 96.66 0.92
2812 22 96.66 0.92
2944 21 96.66 0.92
3076 19 96.66 0.92
3208 19 96.66 0.92
3368 16 96.66 0.92
3508 15 96.66 0.92
3684 13 96.66 0.94
3892 12 96.66 0.96
4096 11 96.66 0.98
4280 13 96.66 0.98
4444 11 96.66 0.98
4596 11 96.66 0.98
4768 11 96.66 0.98
4908 11 96.66 0.98
5092 13 96.66 0.98
5244 13 96.66 0.98
5420 14 96.66 0.98
5580 15 96.66 0.98
5736 13 96.66 0.98
5896 12 96.66 0.98
6044 14 96.66 0.98
6172 15 96.66 0.98
6312 15 96.66 0.98
6452 15 96.66 0.98
6540 16 96.66 0.98
6676 16 96.66 0.98
6796 16 96.66 0.96
6916 17 96.66 0.98
7032 17 96.66 0.98
7136 17 96.66 0.96
6284 17 0.79 0.72

 

[DSMnewbi]

Richen it 1 more % 4000-5000 and it should be good to go.