My first Log...ithink its bad

[RedEyeBanDiT]

93 Laser AWD, 16g, ported o2 housing, 3 inch straight pipe exhaust, k&n filter, aircan not hacked, 93 octane, running wastegate pressure. boost goin to 14lbs.

3rd gear pull.

Rpm InjD Knk o2 Timing
4281 57% 0 .83 8
4531 64% 0 .83 8
4781 79% 0 .83 8
4906 91% 0 .83 9
5093 106% 0 .83 9
5312 103% 9 .87 10
5687 95% 22 .87 6


I was getting knock up to 40 then I adjusted my safc at 5k +10 6k +20 and 7k +20

I have stock injectors and pump.

Any opinion on that log

 

[JayRolla]

We need a log from 2500rpms WOT all the way to redline, unless you get knock over 15 counts then I would just get off the throttle. If your running stock injectors you should not be messing with the safc to much. Stock boost on every 16g ive had is 10-12psi max.

I think you are running more than 14psi because your injectors are maxed out. Thats why you are seeing the knock.

 

[RedEyeBanDiT]

well i dont want to goto redline, i have never pulled the car that high of rpm before, and it actually feels slow at anything past 6k rpms like it has no power that high, time to shift

 

[RedEyeBanDiT]

RPM INJD KNK o2
4062 45% 0 .70
4343 56% 0 .70
4593 65% 0 .70
4812 76% 0 .70
5031 80% 0 .70
5093 86% 1 .70
5281 91% 0 .70
5312 89% 14 .68
5437 91% 27 .68
5562 89% 27 .68
5781 52% 43 .66


Thats as fast as I went. I didnt have timing turned on that log. that was tables set at zero.

 

[blcknspo0ln]

Please fill out your vehicle profile, we need to know what mods you have and it's easier than listing it every time. When baseline tuning, start at zero % across the HI's and do a log. with stock injectors, it may very well mean that at +5% or +100% the injectors are already wide open. Get a log with your HI's set at 0. What are you th points? I generally like to use 30/70.

Have you done a thorough boost leak test to 20 psi?

 

[JayRolla]

You sure boost is not creeping in the high rpms. You need to watch the boost, it may hit 14psi but once you get above 5000rpms look again. I bet the boost is creeping up to 20psi by redline and that is causing you to knock and run out of injector. Only explanation I can see.

 

[spyderturbo007]

I saw this same thread on another forum, where I advised that +20%, running stock injectors, was way too rich. I had him make a pull with the SAFC zeroed out that showed 0.70v for the front O2.

The only thing I can come up with is that he's running a 2g MAS in a 1g and didn't tell anyone.

 

[RedEyeBanDiT]

yea im not running a 2g mas. Im only pushing like 1900-2000 or hz airflow through the maf.

If i do a slow pull and slowly get on the gas, like ease on into the throttle instead of matting it. then my boost does creep to about 17 psi.

 

[r1991_4g63t]

the 1g maf stops at 1607 so if your hitting anything over that you have the 2g maf

 

[spyderturbo007]

I think he's reading that value off the SAFC and not the logger. The OBD-I protocol doesn't allow the ECU to output more than 1607Hz even though the MAS may be reporting a higher value to the ECU.

 

[r1991_4g63t]

thats what i meant, i somehow managed to max mine out acoording to the logger , completely stock.

 

[RedEyeBanDiT]

I have a 1g maf, on the safc ive read around 1900 hz of air for the max value. Ive read about the same amount maybe more on my old talon with a 14b runnin 15- 20lbs of boost

 

[RedEyeBanDiT]

Well if noone believes me, I can take a picture of my my intake and mass air flow sensor.

 

[RedEyeBanDiT]

UPDATE ON OLD POST FOR FUTURE REFERENCE:

Now have fmic, some small boost leaks fixed. Also a 190 pump.
Car was boost creeping to 20 lbs. and still does.
Now has evo 560 injectors w/safc -24 across board with much improvemet. I have around 5k miles on it this way and see great gas mileage 27 mpg (highway). Tuning my o2 volts are around .76-.83 on wot little to no knock.

Next week I am going to try to find time to install a 2g maf with a cold air intake set up.
I will let you know if there are any improvements on overall running and performance.
I have heard both postive and negatives of a running a 2g maf on a 1g due to the change in the timing tables if you do not have a eprom chip to compensate.

 

[DJ23GSX]

UPDATE ON OLD POST FOR FUTURE REFERENCE:
I have heard both postive and negatives of a running a 2g maf on a 1g due to the change in the timing tables if you do not have a eprom chip to compensate.

I think your mistaken that for running bigger than 560cc injectors on just an safc for tuning. The 2gmaf and 560cc injectors are a really close match together and nearly cancel each other out. Tuning 650's with just an safc causes you to have to lean the safc out so much that the ecu gives you too much timing and usually causes knock. I had that issue before the eprom chip. Some guys get away with it and some cant.

 

[z24frank]

Ok I have a fwd 1g with evo injectors a 2g mas and a e-bay 16g I just got my logger and I had 23 coults of knock with my safc2 zeroed out what should be my next step?

 

[spyderturbo007]

Ok I have a fwd 1g with evo injectors a 2g mas and a e-bay 16g I just got my logger and I had 23 coults of knock with my safc2 zeroed out what should be my next step?

I would advise you to start your own thread and post up a log. It's really tough when there are logs from multiple cars in the same thread. It gets very confusing and can lead to someone handing out the wrong information to the wrong user.