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Technical Topics B48 4-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications JB+ on G20 First Impressions

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      04-08-2020, 07:46 PM   #287
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Quote:
Originally Posted by CyclingBroStyle View Post
Anyone else notice the burbles are less pronounced after adding the JB+?
I didn't think so, I thought it made it a little more aggressive. Could be placebo but idk. Sounds ok in sport, great in sport +.
Im on 06/2019 software with November 2018 build btw.
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      04-08-2020, 08:09 PM   #288
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Quote:
Originally Posted by JSaid View Post
Quote:
Originally Posted by CyclingBroStyle View Post
Anyone else notice the burbles are less pronounced after adding the JB+?
I didn't think so, I thought it made it a little more aggressive. Could be placebo but idk. Sounds ok in sport, great in sport +.
Im on 06/2019 software with November 2018 build btw.
Hmm the burbles were louder before I had un plugged and replugged the valve on the exhaust I wonder if that messed it up.
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      04-08-2020, 08:27 PM   #289
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Lol so that’s atleast three of us with G20s with no grey clips (I also know of others who have lost it on their M135is and stuff)? But yes. Thank god that it stays tight and the grey clips aren’t a necessity

Also, I didn’t notice any reduction in burbles. Like JSaid, I think mine increased. And it’s even more now with the JB4. Probably a placebo effect but on map 0 (stock map), it feels like the burbles reduce. Just my mind messing with me I guess.
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      04-09-2020, 11:54 PM   #290
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Originally Posted by VipinLJ View Post
Lol so that’s atleast three of us with G20s with no grey clips (I also know of others who have lost it on their M135is and stuff)? But yes. Thank god that it stays tight and the grey clips aren’t a necessity

Also, I didn’t notice any reduction in burbles. Like JSaid, I think mine increased. And it’s even more now with the JB4. Probably a placebo effect but on map 0 (stock map), it feels like the burbles reduce. Just my mind messing with me I guess.
I did the SAME thing as you guys, popped the clip off and was terrified it fell into the engine belt or something. I was actually able to fish it out from under the steering column, thankfully.
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      04-10-2020, 12:12 AM   #291
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Quote:
Originally Posted by msalisbu View Post
I did the SAME thing as you guys, popped the clip off and was terrified it fell into the engine belt or something. I was actually able to fish it out from under the steering column, thankfully.
In the engine bay?
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      04-10-2020, 01:05 AM   #292
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Originally Posted by msalisbu View Post
I did the SAME thing as you guys, popped the clip off and was terrified it fell into the engine belt or something. I was actually able to fish it out from under the steering column, thankfully.
haha welcome to the clipless g20 club
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      04-10-2020, 12:00 PM   #293
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Originally Posted by VipinLJ View Post
In the engine bay?
Check it out

https://streamable.com/stzyva

I used my phone to search around under the engine and found it lol. Fished it out with my hand and put it back on.
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      04-10-2020, 12:13 PM   #294
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Quote:
Originally Posted by msalisbu View Post
Check it out

https://streamable.com/stzyva

I used my phone to search around under the engine and found it lol. Fished it out with my hand and put it back on.
Atleast you didn’t break your clip. Mine is a wee bit broken, just like the pic Hamza posted
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      04-11-2020, 01:13 AM   #295
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Quote:
Originally Posted by msalisbu View Post
Check it out

https://streamable.com/stzyva

I used my phone to search around under the engine and found it lol. Fished it out with my hand and put it back on.
Wow glad you found it! At least now we know there isn't anything down there that can get damaged too
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      04-12-2020, 10:13 AM   #296
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Hey all- happy Easter/Passover to all the forum. Hope everyone is staying safe and healthy. I ended up leasing a 2020 330i xdrive with only 3k miles on it. I added a JB+ that I bought from a forum member. It’s installed and everything. Being that I don’t know how the engine learned over the first 3000 miles. Is there a way to reset engine with jb+ on it to be catered to my driving style. On my m235i this was a pedal sequence with the car on but not engine running. Is this even necessary?
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      04-12-2020, 03:04 PM   #297
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Quote:
Originally Posted by Pasty187 View Post
Hey all- happy Easter/Passover to all the forum. Hope everyone is staying safe and healthy. I ended up leasing a 2020 330i xdrive with only 3k miles on it. I added a JB+ that I bought from a forum member. It’s installed and everything. Being that I don’t know how the engine learned over the first 3000 miles. Is there a way to reset engine with jb+ on it to be catered to my driving style. On my m235i this was a pedal sequence with the car on but not engine running. Is this even necessary?
I don’t think that is needed.

I know that didn’t work in my B9 A4 but it apparently used to in the B8 and earlier iterations. I’m assuming the ECU keeps learning and hence, you don’t need to do a reset. I could be very wrong though.
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      04-21-2020, 07:26 PM   #298
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Originally Posted by g20beam View Post
So I just installed a JB+ on my G20 330i yesterday and I've been driving it around local for a bit and my initial impressions are great. I feel that the smoothness has been much more refined, and the gears definitely feel like they pull smoother, mostly in the low rpm ranges. I did a few 20km/h to 100-110km/h pulls, and those definitely seemed quicker than before. I hope it's not a placebo, so I'll be testing it for the next few days and post again on it. I don't really know exactly how much HP/TQ I gained from this, but I feel like this little boost tuner made the car's throttle response what it should've been coming from factory.

I did not move the PSI dial beyond BMS factory settings.
Can someone please show me where to install the JB + on the engine
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      04-21-2020, 08:50 PM   #299
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Originally Posted by naderabouhassan@gmail.com View Post
Can someone please show me where to install the JB + on the engine
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      04-22-2020, 01:50 PM   #300
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Originally Posted by pneumodoc View Post
This isn’t a G20 BMW 330i, I have seen this video before but on my car the engine is different.
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      04-22-2020, 02:49 PM   #301
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Quote:
Originally Posted by naderabouhassan@gmail.com View Post
This isn’t a G20 BMW 330i, I have seen this video before but on my car the engine is different.
It’s essentially the same. Pop hood, take the keys and put them far away so that ECU is off, take off engine cover, boost plug is at the front where they show in the video. Unclip it like in the video and connect it. Replace engine cover, close hood, done.
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      04-26-2020, 04:19 PM   #302
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JB+ dialed to the max

Anyone had any issues with JB+ dialed to the max?
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      04-26-2020, 06:25 PM   #303
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Originally Posted by howiegu View Post
Anyone had any issues with JB+ dialed to the max?
Not yet. 😂
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      04-28-2020, 02:30 PM   #304
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Just installed my jb+ on my 2019 330i Xdrive and I can absolutely say it's a noticable difference in power. But what I can't believe is how much smoother the car feels in sport and comfort mode. It used to feel a little jerky at certain speeds but now theres a big improvement especially in sport mode. Very happy so far with the jb+ for the money. I'm now even more excited to code sport+ into the car and see how that feels.
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      05-11-2020, 09:32 PM   #305
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I know people are debating between 75 or 100% . Is there an in between like can you put it in the middle and make it like 88%?
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      05-11-2020, 10:19 PM   #306
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Originally Posted by Boostin335 View Post
I know people are debating between 75 or 100% . Is there an in between like can you put it in the middle and make it like 88%?
It's adjustable to about 88%, it's just a dial. You can turn it to any point on the dial that you want.
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      05-12-2020, 10:15 AM   #307
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just ordered a JB+!

Last edited by Subimatt; 05-12-2020 at 01:22 PM..
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      06-15-2020, 03:17 PM   #308
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Quote:
Originally Posted by Outlaw86 View Post
I've definitely noticed a decrease in the pops and burbles. I just had the M Performance exhaust installed two weeks ago and the difference is night and day since I installed the JB last week. Since I paid 2K essentially for the exhaust, I am going to remove the JB+ because otherwise my exhaust upgrade feels like a waste of money. Sort of bummed.
Did you code sport+ in? I don’t remember pops and burbles decreasing because of my JB+. I have a JB4 now and it pops and burbles a lot in sport+ mode. In normal sport mode, not much. But it’s definitely there.
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