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Silversport22 Silversport22 is offline
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Default 09-15-2021, 07:26 PM

Can someone let me know if map 6 acts differently than the preset maps. For example the preset map 1 is: 3, 3.5, 4, 4, 4, 4, 4, 4, 3.5, 3, 2.5, 2. If I were to enter these same boost values into map 6 would map 1 and 6 then behave the same?

If my above statement is correct and and the fact that the stock turbos won’t add much extra boost down low shouldn’t the preset map start off lower such as 1, 2, 3, 4, 4, 4…..?
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(#6102)
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Darren Lewis Darren Lewis is offline
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Default JB4 Log - 09-16-2021, 05:20 AM

Good morning, new JB4 user here. Hoping to get a second set of eyes on these logs. I have a pretty conservative map 6 set up. With what I added, my total boost should not have exceeded 16.5 at any RPM range. I have a 2018 RS, currently using Shell V Power, 93 octane.

I added a map 0 log and a log of my map 6, both making the same run, about 2k RPMs in 3rd, to ~6500 RPMs, then a few hundred RPMs in 4th.

On the map 6 log, I feel it looks pretty good, except for the dip in Ign1. From what I have read, it seems a dip around 4k RPMs is normal, but seeing it dip to 3.5 seems low. FWIW it did dip to 4.5 on my map 0 log. Also, the dip in Ign1 did coincide with the uptick in boost, so is it possible this is ok?

Trims also appear low, but I do still have a stock exhaust (lower *** only), not sure if that would have an impact or not.

Any feedback is greatly appreciated.

Map 6
3k +1
3.5k +2.5
4k +3
4.5k +2.5
5k +2
5.5k +1.5
6k +1
Attached Files
File Type: csv Map 0.csv (16.9 KB, 26 views)
File Type: csv Map 6.csv (13.3 KB, 23 views)
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(#6103)
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JCB JCB is offline
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Default 09-16-2021, 07:52 AM

Quote:
Originally Posted by crescentfallen
Just connected the JB4 today on my 2020 Q50 Luxe AWD, all stock. Set it to map 2 on 93 octane.
Was just driving around normally and an occasion hard acceleration. I have an unplanned log, can someone tell me if it looks OK.
thanks
Nothing alarming in the log, but you need to take it all the way up the RPM scale - FULL THROTTLE - to properly judge. Ideally you can stay in it for a bit in the next gear as well. Just do it safely as you can!
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JCB JCB is offline
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Default 09-16-2021, 07:57 AM

Quote:
Originally Posted by Silversport22
Can someone let me know if map 6 acts differently than the preset maps. For example the preset map 1 is: 3, 3.5, 4, 4, 4, 4, 4, 4, 3.5, 3, 2.5, 2. If I were to enter these same boost values into map 6 would map 1 and 6 then behave the same?

If my above statement is correct and and the fact that the stock turbos wonít add much extra boost down low shouldnít the preset map start off lower such as 1, 2, 3, 4, 4, 4Ö..?
I think theoretically Map 6 could be setup to replicate the stock maps. That said, my car seems to run best on stock maps vs anything I try to put into map 6. Regarding low end boost - no reason to use lower values at low RPM unless you are trying to eliminate wheel spin. At high RPM many users want to taper the boost in order to keep the turbo in its efficiency band.
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JCB JCB is offline
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Default 09-16-2021, 08:04 AM

Darren - the two logs look very similar. I would try some other fuel brands to see what works best in your area. Also weather could be a factor if its a really hot day. I think you should be able to get at least one more psi of boost on your map 6 with quality fuel and somewhat mild weather. For your current tank of gas though I would not go any higher than your current settings.

Nice job logging though - almost ideal pull for someone to look at. Hopefully the BMS folks will take a look for you as well.
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(#6106)
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Darren Lewis Darren Lewis is offline
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Default 09-16-2021, 08:15 AM

Quote:
Originally Posted by JCB
Darren - the two logs look very similar. I would try some other fuel brands to see what works best in your area. Also weather could be a factor if its a really hot day. I think you should be able to get at least one more psi of boost on your map 6 with quality fuel and somewhat mild weather. For your current tank of gas though I would not go any higher than your current settings.

Nice job logging though - almost ideal pull for someone to look at. Hopefully the BMS folks will take a look for you as well.
Thank you very much for the feedback. I did figure I could run a bit more boost, but wanted to take things slow and make sure the logs looked good (did plenty of research on how to log properly )

Good thought on the gas, I will try a few diff brands and see if the timing improves. I always go with Shell as it is one of the rare Top Tier fuels I can find in my area. The only other TT is Meijer, which I have not tried. I'll report back with findings here!

Last random question, I stayed away from the stock maps because I thought the boost may be a bit high for a RS. Do you think there are any issues with trying map 1? I do think maps 2 and 3 may be too much though.
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(#6107)
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JCB JCB is offline
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Default 09-16-2021, 09:27 AM

I think the best thing you can do right now is keep your settings as is so you can get a good read on the fuel. Map 1 should be doable with the right 93 octane fuel. Once you find the best fuel, stick with it (if it's consistent that is). I forget the exact psi adds for each map, but I see most top off at about 16.5 - 17.5 total PSI on quality 93 octane. All you can do is log it and find out once you find the best available fuel.
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(#6108)
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SilentQ SilentQ is offline
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Default 09-16-2021, 05:24 PM

JCB can you post a picture of what the map 6 user settings should all look like. Mine have all cleared for some reason. Not the actual boost settings but all the parameters below that. Thanks a ton
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(#6109)
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JCB JCB is offline
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Default 09-17-2021, 07:57 AM

Can't see how to post a pic file...Here are all the values that are not zero...if not listed it was zero on mine.
Duty Bias - 50 All RPMs
Boost Safety - 20.0
Default Wastegate Pos - 50
PID Gain - 20
Auto Shift Boost Redux - 60
FF/Wastegate Adaption - 60
TMAP Voltage - 2.0
Firmware - 50/8/5
Engine Type - "Check JB4 Firmware Ver."
Interface Ver. JB4 IOS 9420
Kit Address is blank
Kit Firmware N/A
Country - United States
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(#6110)
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Darren Lewis Darren Lewis is offline
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Default 09-17-2021, 08:41 AM

The only differences on mine are the Default Wastegate Pos, mine came stock at 0, and my TMAP Voltage is 1.9.

I do have different firmware, so maybe that is part of it??? 50/9//5
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(#6111)
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JCB JCB is offline
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Default 09-17-2021, 01:05 PM

If you don't have the EWG (Electronic Wastegate) control wires then zero makes sense.
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(#6112)
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SilentQ SilentQ is offline
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Default 09-17-2021, 05:58 PM

Thanks both of you really appreciate it. I’ll just try 0 for that one as I don’t have EWG. Weird everything is default 0 for me. Didn’t wanna run something that possibly isn’t good
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(#6113)
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JCB JCB is offline
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Default 09-18-2021, 07:41 AM

SilentQ - Are you connected to the JB4 when you are looking at the settings? They are not stored in the application when not connected via blue-tooth.
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(#6114)
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Beardofpeace Beardofpeace is offline
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Default 09-18-2021, 07:53 PM

So I updated my user settings and I think I have it right now. this is a preliminary map 6 setting and just wanted to make sure the logs are looking good so far.
Attached Files
File Type: csv 3rd gear map 6 .csv (116.2 KB, 24 views)
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(#6115)
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SilentQ SilentQ is offline
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Default 09-19-2021, 07:06 PM

Quote:
Originally Posted by JCB
SilentQ - Are you connected to the JB4 when you are looking at the settings? They are not stored in the application when not connected via blue-tooth.
Even with the app on and loaded showed 0ís thatís why I didnít mess with map 6 incase I ran into an issue or something
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(#6116)
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Whitestar Whitestar is offline
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Default 09-21-2021, 02:50 PM

Please review this map run on map 4 for me. Thank you!
Attached Files
File Type: csv P50_M4_R3_210921_1610.csv (15.4 KB, 22 views)
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(#6117)
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JCB JCB is offline
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Default 09-22-2021, 03:52 PM

Whitestar, you should use manual mode and hold 3rd gear from 2500RPM or so all the way up to 6500 in your log all at full throttle. Don't see problems in log you posted, but just isn't a proper log to evaluate.
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(#6118)
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Beardofpeace Beardofpeace is offline
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Default 09-23-2021, 05:43 PM

So are logs no longer being reviewed? I haven't been able to get any feedback regarding my logs or the default values in the user adjustment settings
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(#6119)
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SilentQ SilentQ is offline
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Default 09-23-2021, 09:11 PM

Quote:
Originally Posted by Beardofpeace
So are logs no longer being reviewed? I haven't been able to get any feedback regarding my logs or the default values in the user adjustment settings
Hopefully you can get another opinion on this but in my personal opinion your log looks completely fine, is there a reason you go to map 6 instead of using map 1 or 2. They seem to have those maps setup pretty well as is. As for the use adjustments settings if you read up 3 comments I literally just asked the same question as mine were reset for some reason, JCB helped me and he seems to be one of the more active reputable people who can also give his opinion if he sees this.
Iíd try map 1 3rd and 4th gear 2500-6500 (try and be safe find a open road as you will get to almost 200kmph) stay wide open throttle the whole time to get the best log. The best thing to also do is read previous pages if you ever have free time, Iíve read them all😂
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(#6120)
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Beardofpeace Beardofpeace is offline
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Default 09-24-2021, 12:30 AM

Quote:
Originally Posted by SilentQ
Hopefully you can get another opinion on this but in my personal opinion your log looks completely fine, is there a reason you go to map 6 instead of using map 1 or 2. They seem to have those maps setup pretty well as is. As for the use adjustments settings if you read up 3 comments I literally just asked the same question as mine were reset for some reason, JCB helped me and he seems to be one of the more active reputable people who can also give his opinion if he sees this.
I’d try map 1 3rd and 4th gear 2500-6500 (try and be safe find a open road as you will get to almost 200kmph) stay wide open throttle the whole time to get the best log. The best thing to also do is read previous pages if you ever have free time, I’ve read them all��
Thanks for the feedback. I was using map 6 because I was under the impression map 1 had a 4 psi increase at every rpm so I wanted to keep the +4 psi just between roughly 3500-5500 and taper off to 0 at 6000. I'll get a map 1 3rd and 4th gear tomorrow to see. I previously had multiple logs read and the response was that they were "normal" or "fine." But I recently started noticing that sometimes when I was WOT, there was an intermittent noise that sounded like "pinging" noise ....like a metallic/rattle-can noise, and I wasn't sure if it was the wastegates or a heat shield but after realizing it I think it was actually knock. So maybe it was every time I filled up with bad gas or possible poorer grade ethanol? I'm not quite sure. I guess it could be the turbos/wastegates too. I have a video clip I can send maybe you can hear and decipher it. But even when it was there I couldn't even replicate it every time I went WOT, very weird. On the current map 6 I'm running, I don't think I have heard the noise, although I do have 2 gallons of ethanol in the car.
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(#6121)
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JCB JCB is offline
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Default 09-24-2021, 01:52 PM

Agree with Silent Q - Log looks good. The stock maps do taper at high RPM. I think confusion on using map 6 is because of the Red Sport version of the car. I am guessing that BMS tuned the JB4 stock maps with Non RS owners in mind. RS Owners will be pushing efficiency limits even on Map 1 because they are starting at a higher boost.

Keep an ear out for that sound. When you hear it...try to replicate it with a log right away. That way you can confirm that its knock and you may have an off tank of gas. No need to do anything drastic at that point...just drive it easy until you can deplete the tank and refill with fresh gas.
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(#6122)
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Whitestar Whitestar is offline
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Default 09-24-2021, 01:54 PM

So red sport owners should use Map 6?
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(#6123)
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Beardofpeace Beardofpeace is offline
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Default 09-24-2021, 02:40 PM

Quote:
Originally Posted by JCB
Agree with Silent Q - Log looks good. The stock maps do taper at high RPM. I think confusion on using map 6 is because of the Red Sport version of the car. I am guessing that BMS tuned the JB4 stock maps with Non RS owners in mind. RS Owners will be pushing efficiency limits even on Map 1 because they are starting at a higher boost.

Keep an ear out for that sound. When you hear it...try to replicate it with a log right away. That way you can confirm that its knock and you may have an off tank of gas. No need to do anything drastic at that point...just drive it easy until you can deplete the tank and refill with fresh gas.
I think I found a log from a while ago, which was one of the rare times I was actually able to replicate the sound and I'm going to upload it. I thought it was wastegates or turbos because the boost dips randomly in the middle but I'm not great at reading logs so I'm not sure what else is occurring. Maybe you'll be able to read what's going on? But it seems as though the boost hits peak, dips, and then hits peak boost again. I am pretty sure during this log I heard that noise. Would this log be indicative of pinging/detonation/knock?
Attached Files
File Type: csv wastegates or pinging.csv (54.3 KB, 15 views)
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(#6124)
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SilentQ SilentQ is offline
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Default 09-24-2021, 06:37 PM

Quote:
Originally Posted by Whitestar
So red sport owners should use Map 6?
Really depends on fuel. Map 1 or map 6 if you canít run the map 1-2. Redsports are different i donít own one myself so just going off what Iíve seen. Logging and logging properly is important though try the Jb4 if you have good fuel. Log and post. 3rd gear 2500-6500 the shift into 4th and log all of 4th if you can. Will give the best results
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(#6125)
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JCB JCB is offline
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Default 09-25-2021, 09:05 AM

I run map 5 on my non RS - total boost peaks at about 16.5-17. An RS on map 1 is peaking at 18. It is the same engine. 18 PSI would require VERY good 93 octane gas or a boost from mixing in some E85. Many don't have access even to 93 octane much less consistently good 93 (guys in Canada have to deal with fake 94 octane - not sure if they use a different rating system there, but it is non-ethanol and they report poor performance on it). Most RS owners use map 6 with a +2-3 PSI and taper it at high rpm to avoid turbo inefficiency. If you set it on Map 1 or higher you would have to watch it like a hawk all the time...most don't want to worry about it that much.

Last edited by JCB; 09-25-2021 at 09:11 AM..
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