Help with Map 3 and 4.

[ROOROO]

So im wanting to make sure that im good on these two maps, i have the K&N intakes, HKS plugs gapped at .22, and a muffler delete running e30. Very new to reading logs but from what i could tell it all looks pretty good but is right about at the end of my fueling capabilities. Apologies in advance for my ignorance.

 

[StingerScott]

Hey, I’m in the same boat. Looking for help with reading the logs. I have tried to read all the information but it’s a lot. Having a very basic explanation on how to read and deal with timing, afr etc and quick fixes or bigger issues would be awesome.

 

[StingerScott]

Looked at your map 3, ign 2-6 looks pretty good. Nothing over 3.5. I’m jealous lol I’m trying map 2 with 91 octane and a can of Boostane and I’m still pulling into the 6+ in regards to timing from ign-2-6

 

[ROOROO]

Looked at your map 3, ign 2-6 looks pretty good. Nothing over 3.5. I’m jealous lol I’m trying map 2 with 91 octane and a can of Boostane and I’m still pulling into the 6+ in regards to timing from ign-2-6

Thank you for the reply!!. And yes I’ve actually gotten the timing even better with a bit more e85 in the tank. I still am having a concern with the high trims, it peaks at 51 pretty regularly.

 

[ROOROO]

Hey, I’m in the same boat. Looking for help with reading the logs. I have tried to read all the information but it’s a lot. Having a very basic explanation on how to read and deal with timing, afr etc and quick fixes or bigger issues would be awesome.

From what I’ve gathered. Timing you don’t want above 3 and even that is kind of pushing it, as for afr you want it anywhere from like 11.5-12.6. The trims are where I’m all tripped up. But I do know you don’t want trim1 and trim2 to vary too much, maybe a couple points. I know for the fp-h you don’t want the volts to drop below 10 when under WOT. if you have a spacific question let me know, again I’m pretty new to this so I can only help so much

 

[Thomby]

Having a very basic explanation on how to read and deal with timing, afr etc and quick fixes or bigger issues would be awesome.

Here's a quick writeup I did a while back with examples from a real log, and a link to BMS's parameter definitions:

T

Post in thread 'Wondering if anyone could let me know if I am running at a safe level I have no idea. What my air fuel ratio should be. Please help someone.'

Mar 21, 2023

I’ve had my JB4 for a while now just installing it what a difference it makes I’m only a little concerned that I am not really able to read the logs do you know if I am running in a safe range love how fast it is but I really don’t want to hurt my car

I'm still an amateur at this, but here's BMS's guide, and how I'm learning to look at these:

JB4 Logging Parameters - JB4tech.com - International Turbo Tuning Discussion

Hey guys, We’ll use this thread for details and discussions on Kia specific JB4 logging parameters. Fuel trims and wideband o2 sensor control explained here...

www.jb4tech.com

I start by looking at Pedal, Gear, and MPH (light orange) to get my bearings...

• Thomby

• 

I still am having a concern with the high trims, it peaks at 51 pretty regularly.
But I do know you don’t want trim1 and trim2 to vary too much, maybe a couple points

That may just be your ethanol content, and if the HPFP (fp_h) keeps up, I don't think it's a problem. Guideline is mid-40s at peak torque, dropping toward 25 at high revs as AFR leans out, but I see low 50s on Map 5 and E30.

As for imbalance between banks, ideally they stay close but the JB4 will kick you into Map 0 if they differ by 15 points.

 

[StingerScott]

Here's a quick writeup I did a while back with examples from a real log, and a link to BMS's parameter definitions:

T

Post in thread 'Wondering if anyone could let me know if I am running at a safe level I have no idea. What my air fuel ratio should be. Please help someone.'

Mar 21, 2023

I’ve had my JB4 for a while now just installing it what a difference it makes I’m only a little concerned that I am not really able to read the logs do you know if I am running in a safe range love how fast it is but I really don’t want to hurt my car

I'm still an amateur at this, but here's BMS's guide, and how I'm learning to look at these:

JB4 Logging Parameters - JB4tech.com - International Turbo Tuning Discussion

Hey guys, We’ll use this thread for details and discussions on Kia specific JB4 logging parameters. Fuel trims and wideband o2 sensor control explained here...

www.jb4tech.com

I start by looking at Pedal, Gear, and MPH (light orange) to get my bearings...

• Thomby

• 

That may just be your ethanol content, and if the HPFP (fp_h) keeps up, I don't think it's a problem. Guideline is mid-40s at peak torque, dropping toward 25 at high revs as AFR leans out, but I see low 50s on Map 5 and E30.

As for imbalance between banks, ideally they stay close but the JB4 will kick you into Map 0 if they differ by 15 points.

Awesome thanks a lot!!