Squat for '17+ Cars?

[86TOYO2k17]

Looking at your one log, your driving like a grandma. Do a log of the above 1st to 3rd gear 20% throttle to 5k rpm, rinse and repeat 5 times. Log that and send it.

[NoHaveMSG]

Originally Posted by LancePower

So I just took a short drive today.

The IAM started at .7 again.

Does the IAM reset every time you start the car?

It got up to .86 by the time I shut it down.

That is annoying. What file are you using? I can change it to default at 1 for the IAM and dropbox it to you.

[LancePower]

Originally Posted by 86TOYO2k17

Looking at your one log, your driving like a grandma. Do a log of the above 1st to 3rd gear 20% throttle to 5k rpm, rinse and repeat 5 times. Log that and send it.

They are both 3rd Gear pulls from 2K rpm to Redline as close to full throttle as I could. I've read that's what people want to see for a datalog.

Isn't the 20% throttle more like grandma driving?

[LancePower]

Originally Posted by NoHaveMSG

That is annoying. What file are you using? I can change it to default at 1 for the IAM and dropbox it to you.

OFT v4.03 canned tune.

[86TOYO2k17]

Originally Posted by LancePower

They are both 3rd Gear pulls from 2K rpm to Redline as close to full throttle as I could. I've read that's what people want to see for a datalog.

Isn't the 20% throttle more like grandma driving?

i was referring to your stage 1 log which you are at 5% or less throttle entire time besides half a second at the very end, didn't look at stage 2 log till just now.

if you look at your stage 2 log and see where IAM jumped up from .82 to .94 you will see what i am talking about. you are at 20-40% throttle accelerating for the 2.3 seconds prier. and then another small jump .94-.96 you are at 40-45% throttle and still under 4500rpm. These are closer to the conditions needed to go up, repeated several times. after 4500rpm you throttle % is too high for it to go up again.

It wont go up in WOT and it wont go up just casually cruising, it wants to see constant partial throttle (20-40% throttle angle) acceleration.

Do a log looking at throttle% while you do it, keep it between 20-40% throttle you can slowly ramp up from 20-40% throttle as rpm goes up, do 1-3 gear shifting at 5k RPM, 5 times in a short period of time in 1 log, 1st-2nd is fine if you don't have the proper road but not as ideal. this will give the data to see if your IAM should be going up. Unless your temps are super cold when doing this like just pulled out of your driveway, but doesn't need to be fully warmed up either about 3-4mins of driving should be enough to start this log. This should basically "force" it to go up, or see why it isn't.

people want to see WOT pulls to see why IAM is dropping, or if they have knock or AFR is off or something when under WOT, but yours is not dropping it is just not going up, i suspect because you are not meeting the conditions it wants to see for it to go up. Not because you have knock keeping it from going up.

[LancePower]

Originally Posted by 86TOYO2k17

i was referring to your stage 1 log which you are at 5% or less throttle entire time besides half a second at the very end, didn't look at stage 2 log till just now.

if you look at your stage 2 log and see where IAM jumped up from .82 to .94 you will see what i am talking about. you are at 20-40% throttle accelerating for the 2.3 seconds prier. and then another small jump .94-.96 you are at 40-45% throttle and still under 4500rpm. These are closer to the conditions needed to go up, repeated several times. after 4500rpm you throttle % is too high for it to go up again.

It wont go up in WOT and it wont go up just casually cruising, it wants to see constant partial throttle (20-40% throttle angle) acceleration.

Do a log looking at throttle% while you do it, keep it between 20-40% throttle you can slowly ramp up from 20-40% throttle as rpm goes up, do 1-3 gear shifting at 5k RPM, 5 times in a short period of time in 1 log, 1st-2nd is fine if you don't have the proper road but not as ideal. this will give the data to see if your IAM should be going up. Unless your temps are super cold when doing this like just pulled out of your driveway, but doesn't need to be fully warmed up either about 3-4mins of driving should be enough to start this log. This should basically "force" it to go up, or see why it isn't.

people want to see WOT pulls to see why IAM is dropping, or if they have knock or AFR is off or something when under WOT, but yours is not dropping it is just not going up, i suspect because you are not meeting the conditions it wants to see for it to go up. Not because you have knock keeping it from going up.

Thanks I will try that type of log next time.

As far as the Stage 1 log. I was actually pedal to the floor, so maybe that throws off the throttle reading.

In the future I'll do a smoother depression of the pedal.

[LancePower]

Originally Posted by 86TOYO2k17

i was referring to your stage 1 log which you are at 5% or less throttle entire time besides half a second at the very end, didn't look at stage 2 log till just now.

if you look at your stage 2 log and see where IAM jumped up from .82 to .94 you will see what i am talking about. you are at 20-40% throttle accelerating for the 2.3 seconds prier. and then another small jump .94-.96 you are at 40-45% throttle and still under 4500rpm. These are closer to the conditions needed to go up, repeated several times. after 4500rpm you throttle % is too high for it to go up again.

It wont go up in WOT and it wont go up just casually cruising, it wants to see constant partial throttle (20-40% throttle angle) acceleration.

Do a log looking at throttle% while you do it, keep it between 20-40% throttle you can slowly ramp up from 20-40% throttle as rpm goes up, do 1-3 gear shifting at 5k RPM, 5 times in a short period of time in 1 log, 1st-2nd is fine if you don't have the proper road but not as ideal. this will give the data to see if your IAM should be going up. Unless your temps are super cold when doing this like just pulled out of your driveway, but doesn't need to be fully warmed up either about 3-4mins of driving should be enough to start this log. This should basically "force" it to go up, or see why it isn't.

people want to see WOT pulls to see why IAM is dropping, or if they have knock or AFR is off or something when under WOT, but yours is not dropping it is just not going up, i suspect because you are not meeting the conditions it wants to see for it to go up. Not because you have knock keeping it from going up.

You're right. I just realized I posted everything but the 3rd gear pull.

I've attached the correct file.

[86TOYO2k17]

Originally Posted by LancePower

You're right. I just realized I posted everything but the 3rd gear pull.

I've attached the correct file.

Yeah same deal, all your logs have 3 basic scenarios.
Under 10% throttle IAM not moving
WOT IAM not moving
And the few times you went 20-40% throttles i see in log is when the IAM goes up. This is the condition it wants to see, no knock at about 20-40% throttle for a certain amount of time to go up.

For most people that is about 5-10mins of normal driving, but for some people depending on how they drive if they accelerate really slowly or the traffic conditions don’t allow etc.. they might rarely be in that 20-40% range for long enough time. And going too high throttle% like WOT puts it into open loop and it won’t go up. I am not sure the throttle % that puts it into open loop it might be 70% but 20-40% should work just fine regardless.

[LancePower]

So WOT is to figure out why your IAM is dropping.

20-40% throttle is to make sure it is rising or holding at 1.

[86TOYO2k17]

Originally Posted by LancePower

So WOT is to figure out why your IAM is dropping.

20-40% throttle is to make sure it is rising or holding at 1.

Sort of. Make sure you aren’t knocking and or running lean so it’s running safely when getting on it.
IAM can drop anytime. But it will only go up in certain conditions. Your issue is IAM not going up in the first place. Not going up then dropping after. Even 91 octane will have IAM go up usually to 1, but will often times drop down to like .85 every once in a while. Which isn’t the end of the world but not ideal. Bigger drops to like .6 or very high frequency of drops below .8 are more concerning.

[LancePower]

Originally Posted by 86TOYO2k17

i was referring to your stage 1 log which you are at 5% or less throttle entire time besides half a second at the very end, didn't look at stage 2 log till just now.

if you look at your stage 2 log and see where IAM jumped up from .82 to .94 you will see what i am talking about. you are at 20-40% throttle accelerating for the 2.3 seconds prier. and then another small jump .94-.96 you are at 40-45% throttle and still under 4500rpm. These are closer to the conditions needed to go up, repeated several times. after 4500rpm you throttle % is too high for it to go up again.

It wont go up in WOT and it wont go up just casually cruising, it wants to see constant partial throttle (20-40% throttle angle) acceleration.

Do a log looking at throttle% while you do it, keep it between 20-40% throttle you can slowly ramp up from 20-40% throttle as rpm goes up, do 1-3 gear shifting at 5k RPM, 5 times in a short period of time in 1 log, 1st-2nd is fine if you don't have the proper road but not as ideal. this will give the data to see if your IAM should be going up. Unless your temps are super cold when doing this like just pulled out of your driveway, but doesn't need to be fully warmed up either about 3-4mins of driving should be enough to start this log. This should basically "force" it to go up, or see why it isn't.

people want to see WOT pulls to see why IAM is dropping, or if they have knock or AFR is off or something when under WOT, but yours is not dropping it is just not going up, i suspect because you are not meeting the conditions it wants to see for it to go up. Not because you have knock keeping it from going up.

So here a link to my Stage 2 data log using the moderate throttle method.


https://drive.google.com/file/d/1NR2...ew?usp=sharing


1. Everything look okay? Any reason I shouldn't run this tune?

2. And what exactly is the ECU doing between the time the IAM is .7 and when it gets to 1.0? Is it pulling timing? Am I making less power?

[ThatYeti]

How did it feel?

[LancePower]

Originally Posted by ThatYeti

How did it feel?

Can't feel too much of a difference.

Maybe better low end throttle response.

Exhaust might sound deeper also.

[86TOYO2k17]

@LancePower
Need google share to view it.... share it same way you did before.

I don't know if this is 100% accurate, IAM effect is kind of complicated and hard to explain. the basics is it is pulling timing if its under 1.
but
the effects it has is calculated off of a portion of total timing. If at 1 IAM and WOT you have 25 total peak timing. There is a parameter (not sure what it was called) that is adding something like 7 degrees of timing at 100% IAM or 1 IAM. when IAM is at .7 or 70% of that 7 degrees which is 4.9, so 7 - 4.9 = 2.1, so 2.1 degrees of timing would be pulled from that 25 and you would be at 22.9 degrees of timing.This might not exactly 100% accurate but its the basic gist of what is happening, its basically a percentage of a smaller portion of total timing. the difference between .7 IAM and 1 IAM is like 3-4% less max power or about 5-7whp NA.