Log of my first couple pulls, input?

[Drewcool2]

Here's my setup:
ETE32 50-trim turbo @15 psi
RC550's
Fuel pump
Aeromotive FPR
3" apexi turbo-back, no cat
Apexi FMIC w/ piping
Centerforce DFC
Stock 7bolt
SAFC, AVC-R
new BPR7ES gapped at .030 in, with new magnecor wires.
new OEM o2 sensor.

Here are two logs from two different days. High throttle on the SAFC is about -21% across the board. I'm not really sure where to go from here, so any input would be nice. Even if anyone has a similar setup, and could post their settings.

I'll do another run if I need to...
Thanks

 

[Ronin17]

Timing looks good. I would raise boost to 16 or 17psi and do another log with those settings. If you see timing getting pulled richen up those rpm points and see if it helps. Just take your time and make small changes and get everything dialed in.

I am wondering how far those 550's will take you with that turbo though, how much does that turbo flow?

Have fun

 

[Drewcool2]

I would like to keep it around 15 for now until I get a new HG and head studs. I'de probably be putting it up to around 20 by then. Hopefully the injectors will be able to keep up. What O2 voltage would be good to shoot for. Is 18 deg peak timing good, or could I do better?

 

[CanadianTSi]

Stock HG and studs will hold 20psi fine, unless your's is already blown...

 

[markgholland]

I would like to keep it around 15 for now until I get a new HG and head studs. I'de probably be putting it up to around 20 by then. Hopefully the injectors will be able to keep up. What O2 voltage would be good to shoot for. Is 18 deg peak timing good, or could I do better?

O2 voltage is usually good between .90 and .96 as long as you are not getting any knock(or as long as timing looks good in your case). You could try playing with your AFPR to see if you could get better timing, but it looks good You should consider possibly getting some kind of injector compensation for the larger injectors so you don't have to pull as much out with the AFC.

What are you running for a fuel pump? 255? Supra?

~Mark

 

[Ronin17]

O2 voltage is usually good between .90 and .96 as long as you are not getting any knock(or as long as timing looks good in your case). You could try playing with your AFPR to see if you could get better timing, but it looks good You should consider possibly getting some kind of injector compensation for the larger injectors so you don't have to pull as much out with the AFC.

What are you running for a fuel pump? 255? Supra?

~Mark

I wouldn't go for a set o2 voltage, they just aren't reliable enough. I will make a run in my car and get a .98 and then make another run and get a .96, yet nothing changed between runs. Plus your A/F could be at 12.5:1 and yet your o2 voltage is at .96, see what I mean?

Read enough tuning guides and you learn to take the o2 voltage with a grain of salt, and use timing as the end all of tuning with a s-afc. I think you will be fine timing wise, your injector duty cycle is going to be more of a problem then high timing.

Have you thought about getting a wideband kit? They are very reasonably priced now and they really make tuning a breeze compared to guessing with o2 volts.

Good luck.

 

[markgholland]

I wouldn't go for a set o2 voltage, they just aren't reliable enough. I will make a run in my car and get a .98 and then make another run and get a .96, yet nothing changed between runs. Plus your A/F could be at 12.5:1 and yet your o2 voltage is at .96, see what I mean?

Read enough tuning guides and you learn to take the o2 voltage with a grain of salt, and use timing as the end all of tuning with a s-afc. I think you will be fine timing wise, your injector duty cycle is going to be more of a problem then high timing.

Have you thought about getting a wideband kit? They are very reasonably priced now and they really make tuning a breeze compared to guessing with o2 volts.

Good luck.

I completly agree, however, he didn't mention a wideband in his setup, so I figured he wanted an answer in Layman's Terms

If you aren't going to use a wideband, use your 02s as a guide as in the general direction. Once they are in the "acceptable" range, consider tuning for knock(or since your a 2G, a nice smooth timing curve with good advance) and forget about 02s. Like Ronin17 said, any number of things can influence your 02s from pull to pull, ex: tempature.
~Mark

 

[Drewcool2]

Leaned things out just a tad on the the top end. My new settings are:
-18 --1k
-20 --2k
-21 --3k
-21 --4k
-21 --5k
-22 --6k
-22 --7k
-22 --8k

Peak timing is 19-20 deg now. The nice thing is that I feel more power just by going from -20 to -22 in my 7k range.

Seems like I should get a wideband O2, and try upping the boost. What Wideband O2 should I look to get, and how much boost should I be running on my daily driver?

Thanks

 

[tigerstalon]

I suggest that you remove the TPS from your logs from now on and just log RPM, timing, and O2. The loggers for 2G's can't sample nearly as much or as quickly as the 1G's, so we try to just log the essentials. Your TPS looks good and constant, so there's no need to use up bandwidth on it. You can always do a TPS log every now and then just to make sure it's reading very close to 100% at WOT.

 

[Nixem311]

I suggest that you remove the TPS from your logs from now on and just log RPM, timing, and O2. The loggers for 2G's can't sample nearly as much or as quickly as the 1G's, so we try to just log the essentials. Your TPS looks good and constant, so there's no need to use up bandwidth on it. You can always do a TPS log every now and then just to make sure it's reading very close to 100% at WOT.

tps is a good thing to have so that you know when the WOT pulls begin and end .. so youknow when to get nervous when seeing .60 as an O2 and when not to because maybe its there because your not on WOT .. remember 02's only are acurate under WOT .. so its a good thing to be able to see..


i tune with

Engine speed
Knock
O2
Timing advance
and TPS

 

[DSMeclipse4G63]

You can tel WOT from many sensors other then the tp...but I do agree that it helps in reading logs. Your timing looks pretty good nice and linear, o2s are great too. What I am wondering is why you are flowing 21.xxlb/min at 15 psi when I usually get a bit more for that same psi on a b16g...Ill have to log and re affirm. but still with those numbers you can run more boost.

Andrew

 

[Drewcool2]

You can tel WOT from many sensors other then the tp...but I do agree that it helps in reading logs. Your timing looks pretty good nice and linear, o2s are great too. What I am wondering is why you are flowing 21.xxlb/min at 15 psi when I usually get a bit more for that same psi on a b16g...Ill have to log and re affirm. but still with those numbers you can run more boost.

Andrew

Ya, I was thinking the same thing. Why am I only flowing 21.xxlbs/min @15 psi on a 50 trim? Typically shouldn't that be higher?

 

[paul s]

Add 22%(s-afc settings) to your 21 and you will get your flow. I am running the same turo on my car and run 22psi(94 octane) and get only"29lb" and get 119mph in the 1/4..I woold lean out your 4000-4500 range . I'm running about 10deg timing(4500rpm) at 11.5to1 AFR..same as the top end lean it out a bit more or turn up boost..BTW I use 650s..

 

[DSMeclipse4G63]

Ya, I was thinking the same thing. Why am I only flowing 21.xxlbs/min @15 psi on a 50 trim? Typically shouldn't that be higher?

yeah I just loged my car amd at 4k this is what I logged:

rpm/o2/airflow/timing
4596/1.01v/24.70lbs/min/13degrees(I have a boost leak)

Those are my numbers on the stock ic and with a leak, so yes you should see more air flow then what you are.
Andrew

 

[Drewcool2]

I'm starting to get the hang of this. Now, when I want to go to 20 psi how drastic will that change my high-throttle settings. Should I make it like (-20) accross the rpm range on the SAFC, and tune from there? Or should the settings I have be ok?
-18 --1k
-20 --2k
-21 --3k
-21 --4k
-21 --5k
-22 --6k
-22 --7k
-22 --8k