JCW Power Up!!!
3rd Gear
Joined: Apr 2015
Posts: 189
Likes: 7
Dragon, what's your "lean" AFR? I'm suspecting something is amiss because even without the tuning box you're running lean.
The decat pipe will free-up some restriction so you might see a momentary overboost but the DME should be able to handle that. The F56 DME runs on constant closed loop continuously monitoring the primary wideband O2 sensor (located before the catalytic converter), hence as long as there's no fueling shortage, you shouldn't be running lean with or without a decat.
Even on Map 2 JB4 which probably is close to the "Race" map on the Dinan box, I have not experience any fueling shortage. Fueling trims are always well below max, even on AKI91 gas.
Stock map @ WOT I'm seeing low 13s AFR on AKI91.
Map 2 (+6psi) @ WOT I'm seeing mid 12s to low 13s AFR on AKI91 + MTBE
I believe Marcopolo has done some logging with a Decat before. Let's see if he could share his AFR logs to compare.
The decat pipe will free-up some restriction so you might see a momentary overboost but the DME should be able to handle that. The F56 DME runs on constant closed loop continuously monitoring the primary wideband O2 sensor (located before the catalytic converter), hence as long as there's no fueling shortage, you shouldn't be running lean with or without a decat.
Even on Map 2 JB4 which probably is close to the "Race" map on the Dinan box, I have not experience any fueling shortage. Fueling trims are always well below max, even on AKI91 gas.
Stock map @ WOT I'm seeing low 13s AFR on AKI91.
Map 2 (+6psi) @ WOT I'm seeing mid 12s to low 13s AFR on AKI91 + MTBE
I believe Marcopolo has done some logging with a Decat before. Let's see if he could share his AFR logs to compare.
Last edited by BadakVT; Oct 6, 2016 at 10:33 PM.
3rd Gear
Joined: Apr 2015
Posts: 189
Likes: 7
Might be normal depending on where at the RPM range you saw 14.2. My car on stock map is also running at low 14s up to around 4000rpm. Then it tapers down to the low 13s at close to redline. AFR should range from 1:15 at light load and tapers down up to 12.5:1 ish
at heavy load and high rpm.
These newer DI engines do run leaner than older tech turbo cars.
Any actual dyno sheet with afr readings to review? Dinan would be able to tell you what's going on providing you have data to share.
at heavy load and high rpm.
These newer DI engines do run leaner than older tech turbo cars.
Any actual dyno sheet with afr readings to review? Dinan would be able to tell you what's going on providing you have data to share.
2nd Gear
Joined: Jun 2016
Posts: 115
Likes: 2
From: NE England
Here are some logs I posted up for BMS to check which has AFR
http://www.n54tech.com/forums/showthread.php?t=41813
Similar to what BadakVT has mentioned above (Mine has std. CAT)
http://www.n54tech.com/forums/showthread.php?t=41813
Similar to what BadakVT has mentioned above (Mine has std. CAT)
3rd Gear
Joined: Oct 2006
Posts: 266
Likes: 1
From: uk
fao sootyrs
i have just looked into your logs so these cars only get into the 13s at about 5000 revs ?
my mates car started off at 14.2 and then started to rise . i see terry said your logs were fine i did not no the car stayed in that range till around 5000 revs.
he is going to take the car to lohen and put it on there dyno as all they do is mini and see what they say.
i have just looked into your logs so these cars only get into the 13s at about 5000 revs ?
my mates car started off at 14.2 and then started to rise . i see terry said your logs were fine i did not no the car stayed in that range till around 5000 revs.
he is going to take the car to lohen and put it on there dyno as all they do is mini and see what they say.
2nd Gear
Joined: Jun 2016
Posts: 115
Likes: 2
From: NE England
Can't say I'm an expert myself which is why I sent logs to BMS (Terry) and if he says that is expected behaviour then I can only assume it is working as intended.
I read that the JB4 will always keep things safe and trim back on boost if it feels things are not working to some parameters. Not sure if other piggyback boxes do the same though?
I had a BMW M135 before with JB4 (sports cat and perf exhaust) and that also run similar AFR so I believe the modern BMW engines are designed like this (my own non expert assumption and from some reading on the net)
I read that the JB4 will always keep things safe and trim back on boost if it feels things are not working to some parameters. Not sure if other piggyback boxes do the same though?
I had a BMW M135 before with JB4 (sports cat and perf exhaust) and that also run similar AFR so I believe the modern BMW engines are designed like this (my own non expert assumption and from some reading on the net)
3rd Gear
Joined: Oct 2006
Posts: 266
Likes: 1
From: uk
Can't say I'm an expert myself which is why I sent logs to BMS (Terry) and if he says that is expected behaviour then I can only assume it is working as intended.
I read that the JB4 will always keep things safe and trim back on boost if it feels things are not working to some parameters. Not sure if other piggyback boxes do the same though?
I had a BMW M135 before with JB4 (sports cat and perf exhaust) and that also run similar AFR so I believe the modern BMW engines are designed like this (my own non expert assumption and from some reading on the net)
I read that the JB4 will always keep things safe and trim back on boost if it feels things are not working to some parameters. Not sure if other piggyback boxes do the same though?
I had a BMW M135 before with JB4 (sports cat and perf exhaust) and that also run similar AFR so I believe the modern BMW engines are designed like this (my own non expert assumption and from some reading on the net)
3rd Gear
Joined: May 2007
Posts: 216
Likes: 2
From: Austin, TX
OVERDRIVE
Joined: Jun 2014
Posts: 5,391
Likes: 576
From: earth PNW
Yea, we carry it.
https://www.ecstuning.com/News/MINI_F55_F56_Dinantronics_Sport_Performance_Tuner_ 21766/
https://www.ecstuning.com/News/MINI_F55_F56_Dinantronics_Sport_Performance_Tuner_ 21766/
__________________
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
3rd Gear
Joined: May 2007
Posts: 216
Likes: 2
From: Austin, TX
Welcome, it will work on the F57 / F54 also. We just have not updated the ad yet.
__________________
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
2nd Gear
Joined: May 2008
Posts: 91
Likes: 0
From: Kansas City
Installed my Dinan controller yesterday on my F56 JCW! Works great. Comes in Sport+ mode by default. I have an iOS phone and am waiting for the app to really play with it. Very fun and noticeable difference for a little bit of money!
3rd Gear
Joined: Oct 2006
Posts: 266
Likes: 1
From: uk
You will enjoy race mode
3rd Gear
Joined: Feb 2016
Posts: 169
Likes: 16
From: Lake County, IL
Good news - the iOS app was released yesterday.
I found it when searching for Dinantronics; this one is called "D-SPORT" and has the red S on the icon.
Now I just need my tuner to show up so I can try it out...
I found it when searching for Dinantronics; this one is called "D-SPORT" and has the red S on the icon.
Now I just need my tuner to show up so I can try it out...