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soled24 soled24 is offline
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Default 07-14-2021, 01:22 AM

Quote:
Originally Posted by JCB
For a better pull, continue into 4th gear a bit if you can do so safely. There is enough there (and you are map1 on at 3.0t) so safe to say you can move it up to map 2 and 3. I would just do them back to back and post back. Map 1 is pretty benign for a non-RS so it is not pushing the car/turbos much. If you have good quality 93 Octane gas you should be able to handle 16+ total PSI which would put you into Map 5, assuming no extreme Ambient Temp.
Tried to hold 4th gear a bit longer these times for map 2 and 3. On 91 since 93 isn't available.
Attached Files
File Type: csv P50_M2_R9_210714_0001.csv (87.5 KB, 11 views)


2018 Q50 Sport RWD
91
JB4 EWG
BMS HX
Fast Intentions CBE
Megan LDP
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(#6027)
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JCB JCB is offline
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Default 07-14-2021, 01:15 PM

Wow there is a lot there! Sucks you can't get 93 octane gas...I see a couple of timing drops that would concern me. What I don't understand is that one of them is on Map 2. All your other map 2 wide open throttle pulls look solid except for the 1. I would probably stay off of map 3 unless you can get some better fuel.

What I am looking at is the Ign1 field. Concern is the low single digit values. Good news is I did not see any that dropped to zero except for at the gear changes which is normal.
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soled24 soled24 is offline
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Default 07-14-2021, 09:10 PM

Quote:
Originally Posted by JCB
Wow there is a lot there! Sucks you can't get 93 octane gas...I see a couple of timing drops that would concern me. What I don't understand is that one of them is on Map 2. All your other map 2 wide open throttle pulls look solid except for the 1. I would probably stay off of map 3 unless you can get some better fuel.

What I am looking at is the Ign1 field. Concern is the low single digit values. Good news is I did not see any that dropped to zero except for at the gear changes which is normal.
I just took my jb4 off cause of a trip to the dealer tomorrow but when I log again I'll make sure they are more concise. The early map 2 pulls were before I filled up with gas and the latter once are with a full tank. I'll log again in a few days and check back in. Thanks for the help so far.


2018 Q50 Sport RWD
91
JB4 EWG
BMS HX
Fast Intentions CBE
Megan LDP
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(#6029)
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jsbowling42 jsbowling42 is offline
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Question Surging help - 07-15-2021, 05:52 AM

Anyone know why im getting a noticeable surging that seems boost or fueling related from the log, but i have no idea . im on 93 gas with EWG wires and its a red sport model.
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File Type: csv P50_M2_R1_210715_073025.csv (3.9 KB, 19 views)
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(#6030)
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JCB JCB is offline
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Default 07-15-2021, 07:07 AM

That log is very short, but looks like the JB4 is doing its job by adding boost smoothly in the rev range. What I see is the ECU PSI (which is the car) looking a little erratic. It goes from 4PSI to 12.4 PSI very quickly, but then down to 10.5 and back up to 12.3 then back down to 11.3. Other parameters look normal to me.
I will say that map 2 on a red sport is pushing the limits depending on your fuel quality and mods if any. Most RS owners go with a map 6 and taper in the extra boost at lower RPMs and higher RPMs. You would need to post a longer log to evaluate timing values at the boost level you are trying to run.
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jsbowling42 jsbowling42 is offline
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Default 07-15-2021, 07:41 AM

Quote:
Originally Posted by JCB
That log is very short, but looks like the JB4 is doing its job by adding boost smoothly in the rev range. What I see is the ECU PSI (which is the car) looking a little erratic. It goes from 4PSI to 12.4 PSI very quickly, but then down to 10.5 and back up to 12.3 then back down to 11.3. Other parameters look normal to me.
I will say that map 2 on a red sport is pushing the limits depending on your fuel quality and mods if any. Most RS owners go with a map 6 and taper in the extra boost at lower RPMs and higher RPMs. You would need to post a longer log to evaluate timing values at the boost level you are trying to run.
thanks that's what i was thinking too. yeah, ill get a longer log. ive been running map 2 for a while and haven't had this issue but it does it on map 1 as well and i think even map 0, ill get some other logs and post back though.
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(#6032)
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jsbowling42 jsbowling42 is offline
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Question Surging - 07-15-2021, 07:54 AM

here is a map 1 log i had laying around, its not as prevalent in this one but just more info. also added a old map 2 log before it was doing this.
Attached Files
File Type: csv P50_M1_R1_210707_071352.csv (22.5 KB, 5 views)
File Type: csv 20200407_140627_runs(1).csv (11.1 KB, 6 views)

Last edited by jsbowling42; 07-15-2021 at 08:05 AM..
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(#6033)
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JCB JCB is offline
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Default 07-16-2021, 09:41 AM

Didn't see anything alarming in those logs. I posted a question about your surging issue on the Q forum. Are you a member? Some good knowledge on that site so hopefully get some leads to the issue.
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(#6034)
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jsbowling42 jsbowling42 is offline
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Default 07-16-2021, 10:15 AM

thanks, yes i am a member. i need to take a look there too. also here are a couple of new logs, one map 1 and one map 2 but i really didn't notice the issue during these runs for some reason.
Attached Files
File Type: csv P50_M1_R1_210716_115255.csv (17.9 KB, 11 views)
File Type: csv P50_M2_R1_210716_120144.csv (13.0 KB, 7 views)
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JCB JCB is offline
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Default 07-16-2021, 10:28 AM

Car looks happy to me in those logs as well. Any difference in the weather vs the log with surging?
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(#6036)
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jsbowling42 jsbowling42 is offline
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Default 07-16-2021, 11:40 AM

it was probably cooler the day that i logged the surge since the log was done in the morning. and the most resent were done mid day. so maybe the car was trying to add more timing in the morning given the air being more dense
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(#6037)
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Geraldomi Geraldomi is offline
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Default 07-18-2021, 08:12 PM

Recently my JB4 app has not been able to save logs, or download firmware updates. When I try to log, it only writes the log but doesn't save into my phone. When I try to download Firmware updates it gives me an error. At the bottom of the screenshot you can see I keep getting a message saying "Firmware download failed. Network issue." Has anyone else had this issue? Any possible solution?

OS: Android
App Build: A352
Firmware Version: 50/9//5
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(#6038)
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jsbowling42 jsbowling42 is offline
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Default List of logging parameters - 07-19-2021, 12:49 PM

Terry, is there a list of Parameters that are setup for the VR30 platform? i found one for the N54 but not all them work for this platform, would like to have a list of the ones that are working.
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(#6039)
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soled24 soled24 is offline
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Default 07-19-2021, 07:37 PM

Quote:
Originally Posted by soled24
I just took my jb4 off cause of a trip to the dealer tomorrow but when I log again I'll make sure they are more concise. The early map 2 pulls were before I filled up with gas and the latter once are with a full tank. I'll log again in a few days and check back in. Thanks for the help so far.
Can anyone take a look at my map 2 on 91 for my silver sport with EWG and no FW
Turbos were just replaced as well
Other settings are stock besides duty bias being 55 between 3500-5500rpm

Wanna see how this checks out before trying an e85 mix with 91
Attached Files
File Type: csv P50_M2_R2_210719_0214.csv (16.0 KB, 6 views)


2018 Q50 Sport RWD
91
JB4 EWG
BMS HX
Fast Intentions CBE
Megan LDP
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(#6040)
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SilverRS SilverRS is offline
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Default 07-19-2021, 09:28 PM

Quote:
Originally Posted by Geraldomi
Recently my JB4 app has not been able to save logs, or download firmware updates. When I try to log, it only writes the log but doesn't save into my phone. When I try to download Firmware updates it gives me an error. At the bottom of the screenshot you can see I keep getting a message saying "Firmware download failed. Network issue." Has anyone else had this issue? Any possible solution?

OS: Android
App Build: A352
Firmware Version: 50/9//5
Go to whatever app store you use and remove yourself from the beta of the app. I'm not sure if Apple store does betas. Then uninstall the app and redownload the normal version. Problem solved. It's an issue in the beta.


2020 RS RWD
JB4
EWG and Fuel wires installed

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2018 RS RWD
2015 Q50 Premium
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(#6041)
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JCB JCB is offline
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Default 07-20-2021, 08:26 AM

soled24 - Your timing values in Ign1 are pretty low. 3rd gear values are about as low as you want to go. 4th gear the values do not recover well after the shift and are lower than you want to run on a regular basis. Try a Map 1 and see if the values look better.
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soled24 soled24 is offline
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Default 07-21-2021, 01:02 AM

Quote:
Originally Posted by JCB
soled24 - Your timing values in Ign1 are pretty low. 3rd gear values are about as low as you want to go. 4th gear the values do not recover well after the shift and are lower than you want to run on a regular basis. Try a Map 1 and see if the values look better.
Still figuring out my way at reading logs but I'm not sure if values for Ign1 improved on this map 1 pull

What attributes to the low values? Anything I can do to offset that?
Attached Files
File Type: csv P50_M1_R2_210720_2359.csv (18.3 KB, 6 views)


2018 Q50 Sport RWD
91
JB4 EWG
BMS HX
Fast Intentions CBE
Megan LDP
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(#6043)
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jsbowling42 jsbowling42 is offline
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Default Log Question - 07-21-2021, 09:54 AM

Terry, what do you make of the saw tooth pattern on boost? here is my log.
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File Type: csv P50_M6_R1_210721_112036.csv (16.8 KB, 2 views)
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(#6044)
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JCB JCB is offline
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Default 07-21-2021, 02:41 PM

I don' t like to see numbers under say 5 in the Ign1 parameter unless it is at the gear shift. I see a lot of 3's and even a 1.5 in your latest log. Low Ign1 values indicate Pre-ignition (knock).

Fuel quality is the biggest factor. There is a big difference in 93 octane and 91 octane in how these cars perform with the stock ECU. That said, seems I have seen others push more boost with 91 Octane where the logs look better. If you can't get 93, maybe try different brands. Some use a mix of E85 to raise the octane of 91...maybe 10-15%.
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soled24 soled24 is offline
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Default 07-21-2021, 04:11 PM

Quote:
Originally Posted by JCB
I don' t like to see numbers under say 5 in the Ign1 parameter unless it is at the gear shift. I see a lot of 3's and even a 1.5 in your latest log. Low Ign1 values indicate Pre-ignition (knock).

Fuel quality is the biggest factor. There is a big difference in 93 octane and 91 octane in how these cars perform with the stock ECU. That said, seems I have seen others push more boost with 91 Octane where the logs look better. If you can't get 93, maybe try different brands. Some use a mix of E85 to raise the octane of 91...maybe 10-15%.
In the first map I posted (few post back) with no EWG the Ign1 numbers looked better and you gave the ok to go to map 2 where the numbers didn't fair as well. Now I have the EWG which I like the feel of but now map 1 logs don't look good now which is a little discouraging even though I'm only on 91.

Are there any other parameters I can play with to bring those Ign1 numbers back up or does it just boil down to fuel? I've only been using Shell to log but maybe I'll try a different location. I do have 100 and e85 near to me so I'll give that a shot


2018 Q50 Sport RWD
91
JB4 EWG
BMS HX
Fast Intentions CBE
Megan LDP
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(#6046)
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Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 07-21-2021, 04:54 PM

It boils down to octane...more boost requires more octane or the ECU will pull timing. EWG wires don't have anything to do with it but will allow you to run more boost provided the fuel you are running is sufficient to support it.



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soled24 soled24 is offline
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Default Yesterday, 05:14 AM

Here is a map 0,1 and 2 log all on 91 with EWG wires. If these check out can I move to a tapered map 6 with a +5/5.5 peak?
Attached Files
File Type: csv P50_M0_R1_210726_021447.csv (8.8 KB, 3 views)
File Type: csv P50_M1_R1_210726_021914.csv (8.4 KB, 3 views)
File Type: csv P50_M2_R1_210726_021958.csv (7.9 KB, 4 views)


2018 Q50 Sport RWD
91
JB4 EWG
BMS HX
Fast Intentions CBE
Megan LDP
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(#6048)
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jcosta79 jcosta79 is offline
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Default Yesterday, 02:04 PM

JB4's back in stock yet? :-)
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Geraldomi Geraldomi is offline
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Default Yesterday, 03:50 PM

Quote:
Originally Posted by SilverRS
Go to whatever app store you use and remove yourself from the beta of the app. I'm not sure if Apple store does betas. Then uninstall the app and redownload the normal version. Problem solved. It's an issue in the beta.
Thanks. This solved my issue.
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JCB JCB is offline
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Default Today, 06:14 AM

Soled - those logs look good to me. Don't see any reason you couldn't go with your plan of peak 5.5, tapered map 6. Did you get different brand of gas? Maybe this was just a better tank. Either way, you need regularly pull logs and check. It's not a set it and forget it, because fuel quality can vary.
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