You will need to go full throttle up to redline for a proper log. I have no doubt it will hit all the boost targets without fuel and timing trims in map1 and the conservative map6. Map 2 is the question...

https://burgertuning.com/collections...=3016859222040


Is the N63 550i Replacement Control Board in the drop down menu for the G chassis or the F? JB4 not powering on, already replaced "N63 Masterchip" thx

I'm new to this JB4 application and want to play around with MAP 6. I like Map 2 in my X5 M50i but I feel its a big hit midrange than it falls off on the top end making the X5 feel like it ran out of juicy. How would I setup MAP 6 to give me a solid pull all the way through vs a big punch than nothing?

NO, not the same board. Ando at Support@jb4connectkit.com helped me out... informative and efficient. The correct board is on its way. Thank u

BMW finally got around to upgrading my software to 07/2021.20 from 03/2021.40. I noticed immediately how firm the car's stance feels while driving and how smooth the car drove and shifted gears. Testing is with no JB4 as I had to take that off for a visit. But the car feels so much easier to control, and the power on stock felt beefy compared to the previous software. Dare I say it felt like a different car??? Anyhow, this is just my first impression after driving it a few hundred miles on no tune and just a software upgrade.

Fast forward to today, 19 Jul 21. I drove the car a good bit before work on the way to grab some coffee as I wanted to test the car's balance with a new rear sway bar. I want to say this investment is well worth it. It took 1 hour to install, using a lift and making sure my 4-year-old didn't run into the street.

Altogether, it was four bolts and two nuts. The bar itself was tricky to remove once unbolted. The driver-side control arm needed raised an inch to slide the bar out.

I hope this is informative.

Zach

Couple of us 523hp m550i jb4 users are noticing that with launch control, 4th gear short shifts when you are running a quarter mile sprint. Problem doesn't occur in map 0. It loses quite a lot of time from the run and it pretty annoying! Is anyone else here aware of this as well?

I'd guess its shifting at a particular speed. And since Map 0 has less power, it needs more rpm to hit that speed.

I did a LC tonight, cool and a little bit damp. The car did it from middle of 3rd this time, chucked me straight into 4th. Got me thinking it might be due to the fact LC operates with traction semi on, if the car detects too much wheel spin in knocks you up a gear.

I have not talked to you guys in awhile. I have not used LC yet but I am interested in your feedback.

Also, on another note please remove the charcoal filters in your intake track. If you have them and I did but now after removal the cars throttle seems much more responsive. It's a 15 - 20 min job and so worth it.

Does anybody have the CAN-Flap working on the G-series? Its not working on my car, with the BC button or the JB4Connect app. :(

How do I contact Terry or where do I send logs to? I think I am getting some boost creep after installing 🐈 less dp.

Start your own support thread and post up. ;)

Hi Zack,

Please post a pic of your car with the BMS 10mm spacers front and 13mm rear. I want to get spacers but I don't know which sizes to get for a semi-flush look. I also ordered the MSS springs. Hoping to get the car in a nice stance.

Any newer maps or updates for this platform? Pretty popular and the most recent tech BMW has…

For the N63R? We tune around 20 of them per month, have been since they came out. Map1 and map2 are solid and for customers who want to push more map6 is in there for custom settings.

He’s looking for the N63B. Map 1 is fine. Map 2 isn’t happy.

F90 M5 BMS intakes
 

Please tell me these will fit a M550i? If I take 2 pictures, 1 of a M550i and 1 of a M5 (engine bay) it looks like the turbo inlets sit in the exact same arrangement. If so, the BMS intakes will fit the M550i as well?

Has anyone tried?

@Terry can you send me some to try? You will sell more product if the indeed fit!! If they don't ill send them back.

I think we tried and they were different. Can't send a new set but if we ever have a used set around wouldn't mind. Or get an M550 to swing by our office in Simi Valley for a test fit. We'll throw in a free dyno. :)

You wouldn’t let me buy the used set last time you had one! That’s when you said you were working on an M550 set. How about you just sell me the pipes at cost and I'll screw with it? I have filters, and I can get silicone reducers. Or at least share the bend angle so I can pick up a set of bends from China. :p

The inlet size is definitely different, so reducers will be needed to attach them to the piping. Otherwise everything looks pretty much the same…… except the ducting behind the grills. The F90 has larger caged inlets back there and the M550 just flat louvered panels. I’ve wanted to retrofit the M5 parts since I got the car, but I don’t think there’s enough clearance to allow the grill shutters to open and close.

EDIT: Also the M550 airbox bottoms need to be gutted. I was messing with my custom setup today and tried keeping the bottoms in place like the BMS one does. The vertical bars and press fastener stations (that hold the foam) are in the way. Thats all gotta be cut out. Not a big deal, its pretty thin plastic. The bars could probably be scored with a blade and snapped off if theres no cutoff tool available, and the stations can be cut off with wire cutters and filed smooth. There are small areas by the back of the box with spring loaded doors that are kinda in the way, but you could probably work around them with the pipe bends.

EDIT 2: My version 1 should be done in the next day or 2. V1 uses 3" pipe. Theres also going to be a V2 with 3.5" pipe at some point. I don't think 3.5" is necessary, or really a good idea, which is why I did the smaller version first. I'm not thrilled with the idea of reducing pipe diameter and increasing velocity twice. I feel like the high velocity air slamming into the turbo impellers could cause excess wear or possibly damage.

Looking for recommendations of Chicagoland based shops that can install & fine-tune JB4 on a 2022 M50i engine...

Theres not really a lot of fine tuning we can do. Best to just install it yourself and run Map 1

Sure we can discount a set for you to check out. Drop me an email to sort out the details. Terry@burgertuning.com

I'll mail you tomorrow. I got another month before my X3 build date, so I can screw around with some stuff while I'm waiting. :lol

These are BMS spacers 13 & 10mm. Interested in how you find the MSS springs on a m550i.

I have fitted the MSS springs for about a month now and all I can say is if I had to do only one mod on this car, the MSS springs would be it. oh my lord! I think the MSS springs are worth a whole lot more than they retail. It lowered the car 19 mm all around and I installed a set of Rohanna rfx 11 wheels in bronze. Stance is sick. The ride quality is actually better and more comfortable than stock and I need no spacers. The wheel offset is perfect and I went one tire size wider front and rear. I am over the moon. Now all I need is for Terry to unleash the full potential of this car and I'll be good for a few more years. :lol