[ujelly]

Originally Posted by Stucks

IIRC, It closes the wastegates when you let off the throttle so that they dont make the rattle sound upon deceleration or upon the rpms dropping back down to idle.

would this be automatically tuned after I update to the latest firmware? or do I have to use the steering wheel MAPs to enable/disable just like the exhaust can flap?

[Terry @ BMS]

Originally Posted by infinity

i waiting..................

No, you can only use one at a time. But if certain features pass beta testing and become popular enough we'll add a unique selection for them!

[jclariel]

Originally Posted by jclariel

ok. Have switched back to map5 since my last post. Any reason that I feel more power on map 5 than map2? Should map 5 be more aggressive than 2? Tks

Tks guys

[Jnic335i]

Terry, is there anyway to get out of map 8 once it's active? I found the only way to go back to map 2 was turning off the engine.

[bmw loe]

I'm anxious to get my JB4 (should be here by Friday). Am I able to use Map 1 or Map 5 and use the 1st/2nd gear boost limit feature? Also, I prefer the exhaust stock town to the T (literally), is there a way to enable the CANflap to open only at a certain RPM vs. stock where it opens after the car warms up, goes silent at 1,700, then opens up again like at 3,200pm? I'd like to keep it open only above 3,200rpm

[skysurfer]

Originally Posted by bmw loe

I'm anxious to get my JB4 (should be here by Friday). Am I able to use Map 1 or Map 5 and use the 1st/2nd gear boost limit feature? Also, I prefer the exhaust stock town to the T (literally), is there a way to enable the CANflap to open only at a certain RPM vs. stock where it opens after the car warms up, goes silent at 1,700, then opens up again like at 3,200pm? I'd like to keep it open only above 3,200rpm

loe

Read the first page for all basic questions

[bmw loe]

Originally Posted by skysurfer

loe

Read the first page for all basic questions

The first page shows a picture of MAP 6 (custom map) under the user adjustable tab, which doesn't answer my question about MAP 1 or MAP 5 being able to use the boost control feature.

CANflap can only alternate between open or stock mode. I want it to only open above a certain RPM. Terry, is this possible to write?

[doughboy]

With JB4 is there an equivalent to the old 'pedal target' setting like on the JB3 where you can make the boost target more linear to pedal travel instead of all in one 'BAM' like you seem to get with the JB4.

More like the linear setting on the COBB AP?

[335si]

My car has been plagued with the wastegate rattler forever. I have had the software updated, actuators replaced and finally the turbines replaced under warranty to no avail. The wastegates still rattle.

I tried the "fix" on the JB4 and it seems to have reduced my rattle by about 90%. It seems as though it delays the rattle in my car. Before I enable the "fix" the gates would rattle immediately after backing off the throttle. However, after enabling the "fix" when I back off the throttle and remain in gear (6mt) there is no rattle, but after about 2-3 seconds you can hear the wastegates rattling, but not as bad as before.

Any reason for the delay?

[Terry @ BMS]

Originally Posted by doughboy

With JB4 is there an equivalent to the old 'pedal target' setting like on the JB3 where you can make the boost target more linear to pedal travel instead of all in one 'BAM' like you seem to get with the JB4.

More like the linear setting on the COBB AP?

No, there isn't.

[GtiGyver]

Originally Posted by doughboy

With JB4 is there an equivalent to the old 'pedal target' setting like on the JB3 where you can make the boost target more linear to pedal travel instead of all in one 'BAM' like you seem to get with the JB4.

More like the linear setting on the COBB AP?

I found that playing with the "Lagfix" and "Bogfix" had a significant impact on how the power seemed to apply based on the pedal position.

I had the same issue, I found the pedal mapping far too aggressive.
I'll check my defaults and let you know what I set.

Unfortunately my car is in storage.

[doughboy]

Originally Posted by Terry @ BMS

No, there isn't.

Any way to add something similar to pedal target?

Originally Posted by GtiGyver

I found that playing with the "Lagfix" and "Bogfix" had a significant impact on how the power seemed to apply based on the pedal position.

I had the same issue, I found the pedal mapping far too aggressive.
I'll check my defaults and let you know what I set.

Thanks, I know reducing lagfix seems to reduce the 'surge' you get when pressing the throttle as I think lagfix will run the wastegates more closed at cruise, relying on the DVs to circulate unwanted boost against a part throttle, so its go more boost ready as soon as you open the throttle (i think), but regardless of this the boost targets seem high for a small throttle opening, you can see the way the boost shoots up with a tiny press of gas.

[Terry @ BMS]

At some point perhaps we'll add a throttle sensitive user adjustable back in.

[Indo Rider]

Originally Posted by 335si

My car has been plagued with the wastegate rattler forever. I have had the software updated, actuators replaced and finally the turbines replaced under warranty to no avail. The wastegates still rattle.

I tried the "fix" on the JB4 and it seems to have reduced my rattle by about 90%. It seems as though it delays the rattle in my car. Before I enable the "fix" the gates would rattle immediately after backing off the throttle. However, after enabling the "fix" when I back off the throttle and remain in gear (6mt) there is no rattle, but after about 2-3 seconds you can hear the wastegates rattling, but not as bad as before.

Any reason for the delay?

Probably this:

Originally Posted by Terry @ BMS

The rattle fix loaded is an experimental thing so we'll just have to see how it works out. I don't think it will hurt anything, though. The basic algorithm is that it closes the wastegates for 3 seconds when letting off the gas. I'll have to check the code but I don't think it enables at startup.

[infinity]

Originally Posted by Terry @ BMS

No, you can only use one at a time. But if certain features pass beta testing and become popular enough we'll add a unique selection for them!

yeah!!! option 4.6 for it

it´s possible terry?

[entrepreneur177]

Hey Terry, I like how exhaust sounds on map 8! However, I doubt its MPG in case of a traffic jam.

Be the way is there any way to create a special map to make even louder exhaust note?

[infinity]

you can make some holes in the silent exhaust...

LOL !!!

[entrepreneur177]

Originally Posted by infinity

you can make some holes in the silent exhaust...

LOL !!!

I have eisenmann race, looks good, don't wanna mess with it

No truly, as you swith to map 8 = NA engine, the sound changes a lot. Maybe there is a way to make a richer a/f ratio or whatever.

[infinity]

Originally Posted by carcars 335i

preguntale a alvaro que es el supremo,hay perdon que eres tu

[cubati]

Originally Posted by infinity

que me meo toa

[romak47]

WHen i install 2/7 firmware, what variables do i have to adjust besides the fuel trim stuff and the other thing shown on the first page interface JPG..?

Just wanna make sure I get it right cause i think ive missed a lot of info and changes the past month or so.

[Terry @ BMS]

Just the all map AFR.

[One335i]

Question for you guys, maybe Terry is the best to Awnser but when using the under/over boost function during a 3rd gear pull I'm consistently about two notches to the left of center.. When is it time to worry about boost leak or other problem or is that in an acceptable range, is there a scale. Sorry I haven't had time to log.

[Terry @ BMS]

If you think you might have an issue best thing is to do a CSV log. During short runs under targeting is common though. If it's consistent throughout a large run and over 1-2psi then it's worth double checking IMHO.

[One335i]

Thanks Terry I'll run some logs and check it out when I get some time