Data Logs! Post them here.

[phrosty]

Originally Posted by Fizz

Would appreciate some feedback on my latest log.

Lots of air flow there, must be FI

[Fizz]

Originally Posted by phrosty

Lots of air flow there, must be FI

Yea sprintex 👍

[steve99]

Originally Posted by Fizz

Would appreciate some feedback on my latest log. Added a catless UEL header since the last update: http://datazap.me/u/fizz/del69ofhlog...&data=5&solo=6

Would an AFR reading of 11.7 at 7000rpm WOT be considered acceptable/safe?

By the way, does adding a free flowing exhaust system generally make the car run richer or leaner?

best bloke to ask would be @Kodename47
he has ecutec tuned speintex sc
i would not be happy with iam of 0.85 and the levels of knock correction that must have occurred somewhere before that log to drop it to that assuming it was initially set to one.

[Fizz]

Originally Posted by steve99

best bloke to ask would be @Kodename47
he has ecutec tuned speintex sc
i would not be happy with iam of 0.85 and the levels of knock correction that must have occurred somewhere before that log to drop it to that assuming it was initially set to one.

Yes the IAM started at 1 and perhaps may have dropped due to the hot weather recently. I haven't been pushing the car since the last flash (Delicious tune) because I'm still not quite happy with the low-mid range driveability on this tune. Starting off from dead stop the car bogs a little which leads to slight jerkyness around 2000-2500 rpm. Then around 3500rpm there's a noticeable flat spot where the car just feels out of puff for a couple of second. Waiting for Bill to send me further updates based on this log I sent him. Problem is datalogs can't relay how the tune "feels" when driving so it's kinda difficult to explain the issues i mentioned above.

[steve99]

Originally Posted by Fizz

Yes the IAM started at 1 and perhaps may have dropped due to the hot weather recently. I haven't been pushing the car since the last flash (Delicious tune) because I'm still not quite happy with the low-mid range driveability on this tune. Starting off from dead stop the car bogs a little which leads to slight jerkyness around 2000-2500 rpm. Then around 3500rpm there's a noticeable flat spot where the car just feels out of puff for a couple of second. Waiting for Bill to send me further updates based on this log I sent him. Problem is datalogs can't relay how the tune "feels" when driving so it's kinda difficult to explain the issues i mentioned above.

I think its hard for the american tuners to realise how rubbish our fuel is compared to theirs, even their 91 USA fuel is superior to our 98 Ron fuel.
@Kodename47 is in england and their fuel is similar to ours but even their 98 ron seems to be slightly superior to ours.

[Phantobe]

Can someone check out my 2nd gear pull? Been doing a lot of reading lately...

Running STG 2 UEL 91 Octane

http://datazap.me/u/phantobe/2nd-gea...ta=1-7-9-10-12
@steve99 maybeee

Noticed my IAM below 1, sometimes as low as .56

Guess I'll try some different gas, only crappy 91 here in socal

[steve99]

Originally Posted by Phantobe

Can someone check out my 2nd gear pull? Been doing a lot of reading lately...

Running STG 2 UEL 91 Octane

http://datazap.me/u/phantobe/2nd-gea...ta=1-7-9-10-12
@steve99 maybeee

Noticed my IAM below 1, sometimes as low as .56

Guess I'll try some different gas, only crappy 91 here in socal

ask @solidONE or some other cali guys they can probably put you onto the best gass

if that doesnt fix it

pull 1 degree out of the base timing B map from 4500 rpm to 6000 rpm loads from 1 to 1.2

and about 0.7 degrees from 2000 to 4500 loads 0.7 to 1.2

[Phantobe]

Originally Posted by steve99

ask @solidONE or some other cali guys they can probably put you onto the best gass

if that doesnt fix it

pull 1 degree out of the base timing B map from 4500 rpm to 6000 rpm loads from 1 to 1.2

and about 0.7 degrees from 2000 to 4500 loads 0.7 to 1.2

Just filled up with a tank of shell 91 I'll see how that runs...

Is there a good thread for adjusting the maps, I wasn't hoping I wouldn't have to lol. But it looks like I'll be diving in.

[steve99]

Originally Posted by Phantobe

Just filled up with a tank of shell 91 I'll see how that runs...

Is there a good thread for adjusting the maps, I wasn't hoping I wouldn't have to lol. But it looks like I'll be diving in.

links below like tune tweaks and knock correction should get you started but gass might fix it

[Phantobe]

Originally Posted by steve99

ask @solidONE or some other cali guys they can probably put you onto the best gass

if that doesnt fix it

pull 1 degree out of the base timing B map from 4500 rpm to 6000 rpm loads from 1 to 1.2

and about 0.7 degrees from 2000 to 4500 loads 0.7 to 1.2

How do you know how much to timing to pull & at what loads?

From than 2nd gear pull I saw a max FLKC of -1.64 in the 4.5k-6.0k RPM range. And a max of -0.3 FLKC in the 2.0k-4.5k RPM range.

Wouldn't you want to pull half of the max timing to be conservative or just work your way down in intervals of 0.30 degrees? I'm unsure on how you know what loads to apply the timing.

Still reading :P... vigorously.

Edit: Ah...so we can also log engine load doh... that answers one of my questions! So much good info in the knock correction thread.

[steve99]

;

Originally Posted by Phantobe

How do you know how much to timing to pull & at what loads?

From than 2nd gear pull I saw a max FLKC of -1.64 in the 4.5k-6.0k RPM range. And a max of -0.3 FLKC in the 2.0k-4.5k RPM range.

Wouldn't you want to pull half of the max timing to be conservative or just work your way down in intervals of 0.30 degrees? I'm unsure on how you know what loads to apply the timing.

Still reading :P... vigorously.

Edit: Ah...so we can also log engine load doh... that answers one of my questions! So much good info in the knock correction thread.

As your IAM was less than 1 already the ecu has already backed off timing a bit, and you were still getting a bit of knock correction. so when the iam returns to one it might need a bit more.

usually your iam gets dropped by Knock Correction FBKC in the 1500 to 3500 area when you get on throttle under higher loads, these motors just knocky in that area on 91 fuel.

your trying to run it lean as possible with as much advance as possible to get decient economy cruising in that area

you also get a bit of knock on hot days when you sit idling the take off and intake air temps are high, not sure what temps are like there its 35C here

[Phantobe]

Originally Posted by steve99

;

As your IAM was less than 1 already the ecu has already backed off timing a bit, and you were still getting a bit of knock correction. so when the iam returns to one it might need a bit more.

usually your iam gets dropped by Knock Correction FBKC in the 1500 to 3500 area when you get on throttle under higher loads, these motors just knocky in that area on 91 fuel.

your trying to run it lean as possible with as much advance as possible to get decient economy cruising in that area

you also get a bit of knock on hot days when you sit idling the take off and intake air temps are high, not sure what temps are like there its 35C here

I was gonna run something like this...

What do you think?

[JB86'd]

@Phantobe
I can almost guarantee that won't be enough to keep your IAM up and eliminate knock. I'm in Socal, and I've tested different gas stations, found my local 91 Shell to be the most knock resistant.

Here's the corrections I'm running compared to 2.06 stage 1 91 oct. map, my IAM stays between .98 and 1. Keep in mind I've done about 9 revisions to the timing and have been pulling timing in small increments trying to find the limits of our shitty 91 octane. Car feels smooth and fast despite pulling a couple degrees.

[Phantobe]

Originally Posted by JB86'd

@Phantobe
I can almost guarantee that won't be enough to keep your IAM up and eliminate knock. I'm in Socal, and I've tested different gas stations, found my local 91 Shell to be the most knock resistant.

Here's the corrections I'm running compared to 2.06 stage 1 91 oct. map, my IAM stays between .98 and 1. Keep in mind I've done about 9 revisions to the timing and have been pulling timing in small increments trying to find the limits of our shitty 91 octane. Car feels smooth and fast despite pulling a couple degrees.

Attachment 101260

Yikes! Looks like I'm in for a ride lol. I just flashed over to my revised tune I'm currently running shell as well (v-power). But my IAM hasn't dropped below 1 yet, I'm assuming this is because the ECU is still learning. In a few days I imagine I'll see it drop.

Thanks for the screenshot! Do you think it'd be safe to pretty much try running your numbers to eliminate knock or just keep revising until I find the sweet spot? Running some the same gas as you & 2.06 tune. Only difference is I'm running STG2 because I have catless headers installed.



Here's a 2nd gear pull after driving around a bit, looks a lot better than my previous logs.

http://datazap.me/u/phantobe/2nd-gea...=0&data=1-4-14