EvoScan O2 voltage
Jul 18, 2006, 12:54 AM
#16
Originally Posted by elhalisf
and i tunned mine to 11.8 a/f dropping down to 11.4 towards redline on 3rd gear pull with zero knock.
from what i have seen on the forums, most tunners will tune to 11.5 a/f on 93 octane.
from what i have seen on the forums, most tunners will tune to 11.5 a/f on 93 octane.
Jul 18, 2006, 01:00 AM
#17
Originally Posted by DCSilvrEvo
HA! I totally understand what your sayin. WIDEBAND is the way to go. Sorry to steal the thread but... When its time for your wideband to retire does it not work at all or just give false readings?
Jul 18, 2006, 01:03 AM
#18
Originally Posted by ShiftySVT
I'm using EvoScan to monitor the safety of any changes I make via EcuFlash. After doing some baseline runs on my completely stock IX, I'm getting O2 sensor voltages as high as 0.936. My question is whether or not this is useful info. I know I would need a wideband to get truly accurate A/F numbers, but could I still monitor safety with the O2 sensor voltage? Is there a cutoff voltage that I don't want to go over? I'm not looking to push the envelope with my tuning, I just want to do some mild changes and check the safety.
Jul 18, 2006, 01:36 AM
#19
Evolved Member
iTrader: (171)
Join Date: Apr 2005
Location: Chandler, AZ
Posts: 1,216
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by nj1266
That is too lean on 93 octane pump gas, IMHO. Do you do daily logging of your AFR/timing? I suspect that if you log daily you will see timing getting pulled with such high AFRs. I have been logging daily and I can tell you that there have not been two logs that are alike either with timing or with AFR. While a lot of the logs did not have pulled timing, some did. And I had my car professionally tuned by Tuning Technologies and the tune was conservative with 11:1 and tapering to 10.9-10.8 by redline.
2000 9
2500 9
3000 9
3500 9
4000 9
4500 10
5000 10
5500 10
6000 11
6500 13
7000 17
7500 18
11000 18
and like you said, 11.1 is a conservative tune on 91 octane. well i am looking for a agressive tune on 93. i dont daily log my a/f, but i have logged it over 10 times within the last 2 months.
Jul 18, 2006, 07:12 AM
#20
Originally Posted by elhalisf
if you think thats agressive, check out my timing at 260 load!
2000 9
2500 9
3000 9
3500 9
4000 9
4500 10
5000 10
5500 10
6000 11
6500 13
7000 17
7500 18
11000 18
and like you said, 11.1 is a conservative tune on 91 octane. well i am looking for a agressive tune on 93. i dont daily log my a/f, but i have logged it over 10 times within the last 2 months.
2000 9
2500 9
3000 9
3500 9
4000 9
4500 10
5000 10
5500 10
6000 11
6500 13
7000 17
7500 18
11000 18
and like you said, 11.1 is a conservative tune on 91 octane. well i am looking for a agressive tune on 93. i dont daily log my a/f, but i have logged it over 10 times within the last 2 months.
2. Running 9 degrees of timing at peak boost on pump gas is just too much IMO. The highest likelihood of knock happens at peak boost/peak torque situations. Almost all the logs that I have seen pull timing to 3-4 degrees at peak boost.
Jul 18, 2006, 07:49 AM
#23
Evolved Member
iTrader: (16)
Join Date: Mar 2005
Location: CT
Posts: 1,338
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by nj1266
but what does their timing curve and boost map look like?
Im not at my computer to look at the timing curve, but they set my boost to 23 psi.
Jul 18, 2006, 10:38 AM
#24
Evolved Member
iTrader: (20)
Join Date: Apr 2005
Location: Chantilly,VA
Posts: 920
Likes: 0
Received 0 Likes
on
0 Posts
I think ECU flash doesn't log o2 correctly. you have add 0.1 to your reading to be the same with my DSM logger reading.
And, water temperature wasn't correct either. you have to do subtact -10 to be the same range.
And, water temperature wasn't correct either. you have to do subtact -10 to be the same range.
Jul 18, 2006, 10:55 AM
#25
Evolved Member
iTrader: (17)
Join Date: Aug 2004
Location: In da streetz
Posts: 3,275
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by nj1266
but what does their timing curve and boost map look like?
Jul 18, 2006, 10:56 AM
#26
Evolved Member
iTrader: (17)
Join Date: Aug 2004
Location: In da streetz
Posts: 3,275
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by elhalisf
if you think thats agressive, check out my timing at 260 load!
2000 9
2500 9
3000 9
3500 9
4000 9
4500 10
5000 10
5500 10
6000 11
6500 13
7000 17
7500 18
11000 18
and like you said, 11.1 is a conservative tune on 91 octane. well i am looking for a agressive tune on 93. i dont daily log my a/f, but i have logged it over 10 times within the last 2 months.
2000 9
2500 9
3000 9
3500 9
4000 9
4500 10
5000 10
5500 10
6000 11
6500 13
7000 17
7500 18
11000 18
and like you said, 11.1 is a conservative tune on 91 octane. well i am looking for a agressive tune on 93. i dont daily log my a/f, but i have logged it over 10 times within the last 2 months.
Jul 18, 2006, 12:21 PM
#29
Evolved Member
iTrader: (20)
Join Date: Apr 2005
Location: Chantilly,VA
Posts: 920
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by AlwaysinBoost
IIRC my water temp reading is high too, like around 260 or so. IAT temp works though 
260? dang that is dangerous! mine is around 204 but my other logger reads 194.
Jul 18, 2006, 12:33 PM
#30
Evolved Member
iTrader: (17)
Join Date: Aug 2004
Location: In da streetz
Posts: 3,275
Likes: 0
Received 0 Likes
on
0 Posts
260 isn't the true reading, its just what EVOScan is showing me. On my pocketlogger its usually in the high 170s low 180s. Highest I've EVER seen it was 196 once.
Thread
Thread Starter
Forum
Replies
Last Post
pcguru2000
West Region
3
Nov 24, 2013 10:08 AM
antzlim
Evo Engine / Turbo / Drivetrain
6
Apr 18, 2004 01:03 AM
