02-20-2020, 03:26 PM | #1 |
Private
34
Rep 64
Posts |
Just ordered jb plus for my g20 m340. I don't have the time or the involvement as i used to have when I was younger tuning cars. I know you can up the boost max an additional 4.5psi. I purchased the jb4 and returned it with everything needed cause I don't want to go crazy on the car mapping and busting through the firewall. Really Waiting for Dinan to drop some decent mods so I am in warranty world lol. But a little added boost never hurt anyone within reason. I know the b58 can handle around 500hp to the crank so an extra 20-40hp crank or wheel,to say the least is very modest but generous for the $ spent. If Anyone can weigh in in regards the the jb+ and the b58 g20... opinions, suggestions, whatever. There's a lot of b48 330i guys with it that say they notice quite a difference. Don't get me wrong the m340 is a beast, but I feel it lacks on the high end boost as I feel it's most powerful up to 4500rpm. I'm hoping that added boost from jb+ will help that up top low power/torque band.
|
02-21-2020, 05:13 AM | #3 |
Lieutenant
128
Rep 462
Posts |
The b58 can handle well over 600 to the crank and don’t waste time with jb+ or 4 go with a flash which you can do through your phone and leave it at that
|
Appreciate
1
G2020VISION33.50 |
02-21-2020, 07:24 AM | #4 |
☠️
86
Rep 147
Posts |
|
Appreciate
0
|
02-21-2020, 07:52 AM | #5 |
First Lieutenant
181
Rep 355
Posts |
|
Appreciate
0
|
02-21-2020, 10:31 AM | #6 |
☠️
86
Rep 147
Posts |
I doubt they do. Every lease turn-in I've done took 5 mins while they checked for dings and that's about it. However, there's always a risk so it may not be worth it to everyone. I'm on the fence about it myself honestly...
|
Appreciate
0
|
08-03-2020, 10:04 PM | #8 |
Tech
13
Rep 42
Posts |
[QUOTE=G2020VISION;25831996]Just ordered jb plus for my g20 m340. I don't have the time or the involvement as i used to have when I was younger tuning cars. I know you can up the boost max an additional 4.5psi. I purchased the jb4 and returned it with everything needed cause I don't want to go crazy on the car mapping and busting through the firewall. Really Waiting for Dinan to drop some decent mods so I am in warranty world lol. [/QUOTE
BIG FYI BMW warranty does not support or cover any mods including DINAN... except if its a BMW direct power kit |
Appreciate
0
|
11-15-2020, 12:28 PM | #9 | |
Second Lieutenant
57
Rep 215
Posts |
Quote:
|
|
Appreciate
2
G2020VISION33.50 M340i Pride209.00 |
11-16-2020, 12:31 PM | #10 | ||
Private
34
Rep 64
Posts |
Quote:
|
||
Appreciate
2
M340i Pride209.00 rrfitness2076.50 |
11-16-2020, 02:10 PM | #11 |
Private First Class
77
Rep 138
Posts |
I should be receiving my JB+ tomorrow.
I've heard a lot of mixed things about it. Hopefully my experience is a positive one |
Appreciate
2
chenry2357.50 G2020VISION33.50 |
11-16-2020, 04:44 PM | #12 |
Second Lieutenant
201
Rep 279
Posts |
jb4 may be a better option if you dont want to go with a dme tune
__________________
2015 Honda Civic Si // FBO + Hondata // Retired
2017 340i // FBO + BM3 // Retired 2020 M340i // Stage 2 // Retired 2021 X3M // RGSport Midpipe + MSS + RaceChipGTS // Retired 2016 Rav4 |
Appreciate
1
G2020VISION33.50 |
11-29-2020, 09:48 AM | #13 | |
Enlisted Member
10
Rep 32
Posts |
Quote:
Recently I got a 2021 M340i lease. This car doesn't have the low end grunt of the 440i/jb+ setup but seems to pull harder up top even stock..Now that I have the engine broken in ill add the jb+ to the M340i and run e30 mix since the B58tu can handle more E. |
|
Appreciate
0
|
11-29-2020, 10:08 AM | #14 | |
Second Lieutenant
57
Rep 215
Posts |
Quote:
Also, I assume with the JB+ you are pulling just a bit over 400HP/400TQ...how do you get around increasing the scale for both HP/TQ on dashboard so that you can also visually see it's making a difference? |
|
Appreciate
1
G2020VISION33.50 |
11-29-2020, 10:12 AM | #15 | |
Second Lieutenant
57
Rep 215
Posts |
Quote:
Similar to the previous post, my previous F30 335 MPerformance package had only 335 HP/330 TQ but you could feel it snap right off the bat... With the M340, while a superior engine, I feel the TQ kicks in much later, and it's a bit hard to get used to it... Am hoping the Jb+ can correct that and also add some extra boost that you can feel. |
|
Appreciate
1
G2020VISION33.50 |
11-29-2020, 01:00 PM | #16 | |
Colonel
2358
Rep 2,964
Posts |
Quote:
https://g20.bimmerpost.com/forums/fo...play.php?f=805 |
|
Appreciate
1
G2020VISION33.50 |
11-29-2020, 03:56 PM | #17 | |
Lieutenant Colonel
209
Rep 1,712
Posts |
Quote:
|
|
Appreciate
1
G2020VISION33.50 |
Post Reply |
Bookmarks |
|
|