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VipinLJ VipinLJ is offline
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Default 01-24-2021, 06:01 PM

Mirror map 3 logs below. Along with logs with boost reduced by 0.5psi.
Attached Files
File Type: csv P58_M6_R1_210124_mirror31.csv (9.7 KB, 3 views)
File Type: csv P58_M6_R1_210124_mirror32.csv (13.5 KB, 1 views)
File Type: csv P58_M6_R1_210124_KE-05psi1.csv (12.2 KB, 3 views)
File Type: csv P58_M6_R1_210124_KE-05psi2.csv (8.5 KB, 2 views)
File Type: csv P58_M6_R1_210124_KE-05psi3.csv (8.2 KB, 3 views)


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Terry @ BMS Terry @ BMS is offline
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Default 01-24-2021, 06:20 PM

You could lower duty bias at 5000rpm and below to try to avoid that over boost you get at the start of your run. Maybe subtract 5 per 500rpm from 5000 down.

In the future set app to combine runs in to one file, much easier to read that way later.


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VipinLJ VipinLJ is offline
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Default 01-24-2021, 06:51 PM

Quote:
Originally Posted by Terry @ BMS
You could lower duty bias at 5000rpm and below to try to avoid that over boost you get at the start of your run. Maybe subtract 5 per 500rpm from 5000 down.

In the future set app to combine runs in to one file, much easier to read that way later.
Yes sir. I'll do that and get some new logs and post here for review


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(#229)
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VipinLJ VipinLJ is offline
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Default Yesterday, 05:01 PM

Logs with updated duty bias values
Attached Files
File Type: csv P58_M6_R1_210125_154135.csv (11.7 KB, 5 views)
File Type: csv P58_M6_R1_210125_154230.csv (9.0 KB, 3 views)
File Type: csv P58_M6_R5_210125_154758.csv (35.5 KB, 3 views)


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Default Today, 07:36 AM

Quote:
Originally Posted by VipinLJ
Logs with updated duty bias values
Hi,

I looked quickly at your past 8 runs.

Your best acceleration run was the KE psi3, but it was very rough. You are running this in the absolute mode. The gain is very high and the throttle is almost immediately involved in controlling the boost. FF and WGDC are out of whack. Still, your acceleration was very good.

For me, the turbohval3 was the best overall. It is the smoothest, steady valve action, and WGDC and FF curves nicely lined up.

Cops will grab you on that 4th gear run...

enjoy!


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VipinLJ VipinLJ is offline
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Default Today, 08:22 AM

Quote:
Originally Posted by Turboh
Hi,

I looked quickly at your past 8 runs.

Your best acceleration run was the KE psi3, but it was very rough. You are running this in the absolute mode. The gain is very high and the throttle is almost immediately involved in controlling the boost. FF and WGDC are out of whack. Still, your acceleration was very good.

For me, the turbohval3 was the best overall. It is the smoothest, steady valve action, and WGDC and FF curves nicely lined up.

Cops will grab you on that 4th gear run...

enjoy!
The KEpsi3 log was an absolute +6psi map. Tried mirroring map 3 by using absolute +6psi to see if there was any difference. So technically shouldn't that be the same as map 3?

And no cops on that road It's a long, abandoned road leading to a dead end and no one drives on it

Regards,
Vipin


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Thumbs up Today, 09:08 AM

Quote:
Originally Posted by VipinLJ
The KEpsi3 log was an absolute +6psi map. Tried mirroring map 3 by using absolute +6psi to see if there was any difference. So technically shouldn't that be the same as map 3?

And no cops on that road It's a long, abandoned road leading to a dead end and no one drives on it

Regards,
Vipin
I think they are not the same, regardless of boost. Map3 includes other settings, including timing, wgdc, ff etc to provide the best general performance.

Also, map 3 does auto adjustments....i do not think map 6 does. Auto adjust helps performance as things chance due to weather and gas..I think.

That road is perfect...


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VipinLJ VipinLJ is offline
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Default Today, 09:42 AM

Quote:
Originally Posted by Turboh
I think they are not the same, regardless of boost. Map3 includes other settings, including timing, wgdc, ff etc to provide the best general performance.

Also, map 3 does auto adjustments....i do not think map 6 does. Auto adjust helps performance as things chance due to weather and gas..I think.

That road is perfect...
Ah gotcha. I did think there were other factors as well but I wasn't sure.

Also, how do you calculate acceleration? Rpm and what other factor? Change in rpm over a certain period of time?

And yes. It's my personal drag strip except that the roads aren't great or completely level. I do my runs on an uphill section.

Vipin


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Default Today, 12:55 PM

Quote:
Originally Posted by VipinLJ
Ah gotcha. I did think there were other factors as well but I wasn't sure.

Also, how do you calculate acceleration? Rpm and what other factor? Change in rpm over a certain period of time?

And yes. It's my personal drag strip except that the roads aren't great or completely level. I do my runs on an uphill section.

Vipin
Lol, beats my I 89 on and off ramps.

Yes, the average acceleration is ending-minus beginning rpm divided by the ending time. It is simply a ratio. The bigger the number the better your acceleration. Just track that for all your runs and you can quickly get an idea of how you are doing, power wise.

If you want to get exact, the timestamp is in 1/10 seconds. So on your calculator, take the difference between the ending and beginning mph, off the log sheet, and multiply by 1.467, and then divide the number by the ending time stamp divided by 10, and you will have the average ft/sec2 acceleration.

As far as maps, I have found Map 6, overall, to be the best of them all.

I liked seeing your runs. Terry always says that the throttle valve is part of the boost control system. You can watch that on your runs. But if boosts get too high too quickly it will close off. Similarly, the waste gate will control the boost rate and amount and close off as set by the PID control and safety settings. Throttle control for boost is difficult and slow compared to waste gate control just from looking at the size of the throttle plate itself. So the better the WGDC operates, the less the throttle plate has to get involved. Big changes in gain on the waste gate result in big boost increase rates, which the throttle plate will have to manage. They end up fighting each other. Hence roughness and other things. IMHO lol.




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