First Log, need help to make sure I understand it

[killakev805]

I just got a pocket logger, and logged my first run. I did it from second to part of 4th. If any one can help me understand I would appreciate the help.

RPMS o2v Timing
2632 .85 22
2796 .93 18
3020 .93 12
3316 .95 9
3640 .95 1 <---- Knock?
4080 .97 8
4484 .97 9
4908 .97 11
5348 .97 13
5748 .97 15
6112 .97 16
6472 .97 16
6784 .97 17
7068 .97 18 <----- End of 2nd

5072 .95 11
5132 .95 11
5260 .95 12
5428 .95 13
5680 .95 14
5800 .95 14
5932 .95 16
6104 .95 16
6264 .95 16
6376 .95 16
6508 .95 17
6652 .95 17
6748 .95 17
6856 .95 18
6992 .95 18 <----- End of 3rd

5004 .93 9
5208 .95 10
5308 .93 11
5368 .93 11
5460 .93 11
5500 .93 12
5588 .93 12
5652 .93 12
5712 .93 14
5764 .93 14
5832 .93 15
5904 .93 15
5980 .93 15 <---end of 4th


I am running a ported 14b at 18psi, with stock fuel injectors, and a walbro 190.

I just want to make sure I am not running it to the limits right now. Later after I get injectors and dsmlink, then I will be able to tune it more.

[CanadianTSi]

Other than the timing going down to 1 when the boost hits which is kinda weird but I wouldn't worry about it, your log looks perfect.

You might be getting a little lean at the top of 4th but I think your fine.

PS. It's nice to see someone post a log in the proper format with only the important things.

[killakev805]

Originally Posted by CanadianTSi

Other than the timing going down to 1 when the boost hits which is kinda weird but I wouldn't worry about it, your log looks perfect.

You might be getting a little lean at the top of 4th but I think your fine.

PS. It's nice to see someone post a log in the proper format with only the important things.

Thanks for your reply.
That makes sense that I am leaning out in 4th, it seems like my egt's start to rise up over 1400 when I get to the top of 4th.

For my future reference: What would my o2 voltage read if I was dead on with the a/f ratio?

Should I get a better o2 sensor than the stock one? or does it give an accurate reading?

[CanadianTSi]

Originally Posted by killakev805

Thanks for your reply.
That makes sense that I am leaning out in 4th, it seems like my egt's start to rise up over 1400 when I get to the top of 4th.

For my future reference: What would my o2 voltage read if I was dead on with the a/f ratio?

Should I get a better o2 sensor than the stock one? or does it give an accurate reading?

o2 value is more of a guess and is good enough to get an idea of how rich/lean you are. I keep my car at .96 which for me is a little rich.

If you want to actually watch your true A/F ratio then you need to get a Wideband o2 sensor.

[killakev805]

Originally Posted by CanadianTSi

o2 value is more of a guess and is good enough to get an idea of how rich/lean you are. I keep my car at .96 which for me is a little rich.

If you want to actually watch your true A/F ratio then you need to get a Wideband o2 sensor.

It seemed to get leaner the longer I was in the throttle, do you think it's because the stock injectors can't handle it? or could my fuel pump be falling off? or any other ideas?

[CanadianTSi]

It's the Injectors, you're fine with the 190, it's what I run.

[scottsee]

depends on what AFR your shooting for. stock is 9.5:1 on a 2g. thats just Pig rich. everyone says .96 on the 2g is perfect. but without that damn wideband its really not worth tunning by. but i think you know that. everyone does. but yet everyone one posts it, and here i am doing so to.. shiiit.

i would lean everything out -5 and you should fix your first gear problem.

[killakev805]

Originally Posted by CanadianTSi

It's the Injectors, you're fine with the 190, it's what I run.

Thanks for your help

I think I am in pretty good shape, and in a few weeks I will have my fuel system upgrades purchased, and hopefully short after I will get dsmlink and put it all in.