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      02-24-2020, 09:56 AM   #463
Coeman140
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95ron custom tune

Here is a log from my custom tune 95ron (using 99ron for this log)

https://datazap.me/u/coeman/4th-and-...45-46-47-48-49

I asked the tuner for limited torque and the way the car builds boost is awesome, feels so much nicer to drive than stock.

Drops boost after 6k, not sure if they did this due to having it mapped on 95. (American 91?). As the guy said they were trying to add more timing to get the power.

Made 430bhp or ~370whp. Am so tempted to throw some money at this engine after seeing Supras and x40i cars running silly power

Any chance of a virtual dyno based on these logs?

Great thread btw, enjoyed looking at all these logs for different tunes!
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      02-24-2020, 10:04 AM   #464
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Just saw another thread so I'll ask here: Would it be helpful to add typical/safe ranges for certain parameters to the OP? I've been curious about oil pressure and I've seen others ask about coolant/oil temp as well. A lot of it will vary based on ambient conditions but I can add some baseline data of what's typical.
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      02-24-2020, 10:49 AM   #465
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Quote:
Originally Posted by kern417 View Post
Just saw another thread so I'll ask here: Would it be helpful to add typical/safe ranges for certain parameters to the OP? I've been curious about oil pressure and I've seen others ask about coolant/oil temp as well. A lot of it will vary based on ambient conditions but I can add some baseline data of what's typical.
I'd enjoy seeing this data. Ranges for most of the temp gauges would be nice- transmission, exhaust, coolant, etc.

You might add a General Info section too that explains some of the common questions, like boost spikes at shift points, etc.
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      02-24-2020, 12:36 PM   #466
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Quote:
Originally Posted by SÁpreme View Post
I'd enjoy seeing this data. Ranges for most of the temp gauges would be nice- transmission, exhaust, coolant, etc.

You might add a General Info section too that explains some of the common questions, like boost spikes at shift points, etc.
FAQs suck, but i'll give it the good ol college try lol. Just be ready to constantly tell people READ THE FAQ
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      02-24-2020, 07:58 PM   #467
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Dyno results and log from today. I'm pretty happy with the results on the stock turbo, considering this is AWHP. Torque got a little wonky, but I'm not sure how to interpret that.

https://datazap.me/u/tnilson/5th-gear-dyno?log=0&data=4

Video is on my IG if you're interested @tnilson23
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      02-24-2020, 08:24 PM   #468
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Pretty similar numbers to my stock turbo dyno. Nice.
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      02-25-2020, 07:16 AM   #469
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Quote:
Originally Posted by SÁpreme View Post
Dyno results and log from today. I'm pretty happy with the results on the stock turbo, considering this is AWHP. Torque got a little wonky, but I'm not sure how to interpret that.
Probably a throttle closure when you hit peak boost, although i don't see it in your log. Good numbers.
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      02-25-2020, 09:09 AM   #470
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Quote:
Originally Posted by Sµpreme View Post
Dyno results and log from today. I'm pretty happy with the results on the stock turbo, considering this is AWHP. Torque got a little wonky, but I'm not sure how to interpret that.

https://datazap.me/u/tnilson/5th-gear-dyno?log=0&data=4

Video is on my IG if you're interested @tnilson23
That "wonky" torque curve is a consequence of poorly mapped WGDC values. They are just too high to hit requested load. P is negative through the 2/3 of the log, I is negative too. Top it off with major throttle closures when overload occurs and here you have your torque zig-zags printed out.
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      02-25-2020, 12:18 PM   #471
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Quote:
Originally Posted by alyabiev View Post
That "wonky" torque curve is a consequence of poorly mapped WGDC values. They are just too high to hit requested load. P is negative through the 2/3 of the log, I is negative too. Top it off with major throttle closures when overload occurs and here you have your torque zig-zags printed out.
I don't think so. Boost holds really tight to target. Target WGDC could maybe be improved but that's a bigger dip than a 1psi drop would indicate too me (even though i suppose the dyno supports it). And the DME doesn't close the throttle.

The only thing I don't like is targetting boost that 4+psi over it's capability at redline just to keep the wastegate slammed shut. But again, I wouldn't expect it to affect power/torque output if it was dialed in better.

I don't know enough about p/i values to comment on that.

edit: nevermind, i clicked on accel pedal position instead of throttle position. yeah throttle closures are the problem.
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      02-25-2020, 04:55 PM   #472
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Looking for some help reviewing my logs. Just went Stage 2 and am trying to decide which octane to run. Apparently Utah's 91 octane is kind of trash, I did swap out my plugs yesterday and gapped down to .022 to see if I could help in any way.

Stage 2 - ACN 91 Octane

Stage 2 - 91 Octane
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      02-25-2020, 05:22 PM   #473
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Quote:
Originally Posted by Ahanix View Post
Looking for some help reviewing my logs. Just went Stage 2 and am trying to decide which octane to run. Apparently Utah's 91 octane is kind of trash, I did swap out my plugs yesterday and gapped down to .022 to see if I could help in any way.

Stage 2 - ACN 91 Octane

Stage 2 - 91 Octane

Need to do those again mate. You need to use full throttle, ideally from ~2000-6500rpm or higher. Looking at those logs your pedal position is dropping to 50% by end of the run. If speed is an issue use 3rd gear.

good luck!
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      02-25-2020, 05:27 PM   #474
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Quote:
Originally Posted by Coeman140 View Post
Need to do those again mate. You need to use full throttle, ideally from ~2000-6500rpm or higher. Looking at those logs your pedal position is dropping to 50% by end of the run. If speed is an issue use 3rd gear.

good luck!
Okay thank you,

I started out at ~2k and left full throttle for as much as i had runway, not enough room to break past 90 on a farm road, haha.
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      02-26-2020, 09:35 AM   #475
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@Supreme I tend to agree with alyabiev on the log.

it would be better to reduce the WGDC base mapping, I always get better results when slightly under target boost, and PID portion is used to make up the difference

throttle closure will be inefficient use of boost and not smooth, only way to be sure you avoid them is always be a little under target

The WGDC is calculated form the sum of the following FYI

BASE = this is the feed forward map of WGDC, that is fixed table, WGDC vs boost target vs mass air flow, the unit is a bit weird its in kW, so i think they have mapping to get the turbo compressor power in kw to the actual WGDC, but that part I am not sure about or that table is not exposed, you increase the kw of the base it will increase the actual WGDC % in some proportion to it, I guess most tuner just modify this table

P = proportional WGDC correction, this is added, also in kw, and directly proportional to the difference between the target and the actual boost (boost error)

I = the integral or the sum of the error over time, negative value here shows you are consistently over target, this should be slightly positive over the run, if you slightly below target

D = a factor added that is in proportion to the rate of change of the boost error in time, this is normally not that important, is used to stabilize overshoot , if your rapidly approaching target, slow it down a little for example

still learning this as well, so if anything is incorrect please do correct me folks
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      02-26-2020, 09:57 AM   #476
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Quote:
Originally Posted by RMMAGA View Post
@Supreme I tend to agree with alyabiev on the log.

it would be better to reduce the WGDC base mapping, I always get better results when slightly under target boost, and PID portion is used to make up the difference

throttle closure will be inefficient use of boost and not smooth, only way to be sure you avoid them is always be a little under target

The WGDC is calculated form the sum of the following FYI

BASE = this is the feed forward map of WGDC, that is fixed table, WGDC vs boost target vs mass air flow, the unit is a bit weird its in kW, so i think they have mapping to get the turbo compressor power in kw to the actual WGDC, but that part I am not sure about or that table is not exposed, you increase the kw of the base it will increase the actual WGDC % in some proportion to it, I guess most tuner just modify this table

P = proportional WGDC correction, this is added, also in kw, and directly proportional to the difference between the target and the actual boost (boost error)

I = the integral or the sum of the error over time, negative value here shows you are consistently over target, this should be slightly positive over the run, if you slightly below target

D = a factor added that is in proportion to the rate of change of the boost error in time, this is normally not that important, is used to stabilize overshoot , if your rapidly approaching target, slow it down a little for example

still learning this as well, so if anything is incorrect please do correct me folks
Good info. My only concern is if tuners will get defensive when presenting this kind of info. I know some people don't like when customers act like experts, and it seems like they considered this a final revision. Hopefully they are open to tweaking it a bit.
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      02-26-2020, 10:32 AM   #477
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Quote:
Originally Posted by kern417 View Post
Good info. My only concern is if tuners will get defensive when presenting this kind of info. I know some people don't like when customers act like experts, and it seems like they considered this a final revision. Hopefully they are open to tweaking it a bit.
Thanks for the feedback. I shared the dyno log with Wedge and asked if he was concerned with the throttle closures and torque values. His comment was: "Yeah sometimes they get a little wonky on the dyno because load is different than on the street/track."

I'll see if I can do a 5th gear street log and share it with you guys, but it starts getting kinda fast irl and I don't wanna go to jail lol.
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      02-26-2020, 02:02 PM   #478
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So I ended up heading down to Mexico for a quick road trip today lol...

Here's the 5th gear log. https://datazap.me/u/tnilson/5th-gea...-48&zoom=27-82

I haven't had a chance to pull it up on my laptop yet and using datazap with Chrome on my cellphone makes me want to kill myself, but from what I can see, it does look like I still ended up with some negative I and P values.

Side note, I must have jinxed myself because I didn't bleed speed quite quickly enough after this run and got stopped by la policia lol. All I got was a warning ticket but it's a good thing he didn't catch me 90 seconds earlier. I would have ended up en la cßrcel
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      02-26-2020, 03:02 PM   #479
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Quote:
Originally Posted by Sµpreme View Post
So I ended up heading down to Mexico for a quick road trip today lol...

Here's the 5th gear log. https://datazap.me/u/tnilson/5th-gea...#38;zoom=27-82

I haven't had a chance to pull it up on my laptop yet and using datazap with Chrome on my cellphone makes me want to kill myself, but from what I can see, it does look like I still ended up with some negative I and P values.

Side note, I must have jinxed myself because I didn't bleed speed quite quickly enough after this run and got stopped by la policia lol. All I got was a warning ticket but it's a good thing he didn't catch me 90 seconds earlier. I would have ended up en la cárcel
This log looks much cleaner at glance, base WGDC is spot on. Maybe that dyno was just not able to render amount of load experienced on the road as was said earlier.
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      02-27-2020, 06:11 AM   #480
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Quote:
Originally Posted by Sµpreme View Post
Dyno results and log from today. I'm pretty happy with the results on the stock turbo, considering this is AWHP. Torque got a little wonky, but I'm not sure how to interpret that.

https://datazap.me/u/tnilson/5th-gear-dyno?log=0&data=4

Video is on my IG if you're interested @tnilson23
486whp???? (~550hp) it is not real for stock turbo!!!
what mods? fuel?
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      02-27-2020, 07:28 AM   #481
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Originally Posted by janea1207 View Post
486whp???? (~550hp) it is not real for stock turbo!!!
what mods? fuel?
i'll never understand how someone can estimate your bhp and then claim your dyno numbers aren't real.

You better message pure turbo. They've done over 500whp on stock turbo. Mind blown.
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      02-27-2020, 07:39 AM   #482
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Quote:
Originally Posted by janea1207 View Post
486whp???? (~550hp) it is not real for stock turbo!!!
what mods? fuel?
Are you telling me my dyno sheet while on stock turbo is fake too? lmao

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      02-27-2020, 08:37 AM   #483
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Originally Posted by janea1207 View Post
486whp???? (~550hp) it is not real for stock turbo!!!
what mods? fuel?
You caught me, lock me up officer lol
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      02-27-2020, 08:51 AM   #484
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Are you telling me my dyno sheet while on stock turbo is fake too? lmao
At this point we have multiple x-drive cars putting down over 460awhp with custom ethanol tunes. I believe Pete's car is RWD and did 501whp with E30+meth. Hell, just last week Sam ran a 10.8 on stock turbo running E50+meth. It's crazy, people are still underestimating how well our cars respond to octane.
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