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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > N20 jb4 stage 2 honest review..
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      01-10-2018, 02:36 AM   #45
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Quote:
Originally Posted by SalazF30 View Post
I got a 4.9 0-60 mph on my '13 320i, stage 2 map 5
Does the 320 have the same "ceiling" as the 328? Meaning will both cars with a jb4 be equal? I know the exhaust is a smaller diameter in the 320, but from what I've read on here, that looks to be the only difference.
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      01-10-2018, 10:06 PM   #46
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Quote:
Originally Posted by Alpin View Post
Sounds good! Any other mods and what kind of fuel were you running..?
No other mods besides 235 tires on the rear lol I was running 91 oct with about 30% E85, and this run was made on a cool day and my city is so close to sea level, maybe about 50 ft above sea level
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      01-10-2018, 10:10 PM   #47
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Quote:
Originally Posted by Cscat View Post
Does the 320 have the same "ceiling" as the 328? Meaning will both cars with a jb4 be equal? I know the exhaust is a smaller diameter in the 320, but from what I've read on here, that looks to be the only difference.
328i's have a 10:1 compression ratio whereas 320i's have 11:1; I'd say that the 320i can take better advantage of E85, and someone please correct me if I'm wrong but i also think the 328i has a stronger/bigger driveshaft
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      01-10-2018, 10:12 PM   #48
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thanks mate
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      01-10-2018, 10:14 PM   #49
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Quote:
Originally Posted by Cscat View Post
Does the 320 have the same "ceiling" as the 328? Meaning will both cars with a jb4 be equal? I know the exhaust is a smaller diameter in the 320, but from what I've read on here, that looks to be the only difference.
If you plan on getting a Jb4, I'd consider driving your 320i with so much care, do oil changes more frequently, and keep an eye on that oil temp gauge
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      01-10-2018, 11:30 PM   #50
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Originally Posted by SalazF30 View Post
If you plan on getting a Jb4, I'd consider driving your 320i with so much care, do oil changes more frequently, and keep an eye on that oil temp gauge
Sounds like you are pretty sketched out by having that on your car, so I'll probably pass. Was just curious and seeing if its worth it to add more oomph safely. I'll have the car for about another year until the G20 ordering starts. Thanks for the input.
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      01-11-2018, 01:31 PM   #51
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Quote:
Originally Posted by Cscat View Post
Sounds like you are pretty sketched out by having that on your car, so I'll probably pass. Was just curious and seeing if its worth it to add more oomph safely. I'll have the car for about another year until the G20 ordering starts. Thanks for the input.
Jb4 on the 320 is the best. Stick to map 5 if you want to play it safe. It will adapt performance output to whatever supporting mods you have as well. So adding a catless downpipe or larger intercooler will better your performance in map 5 as well.

Always look at your oil temp in a turbo car. Never gas it heavy till the oil temp rises. Jb4 or not.

I’ve been jb4 for 2 years, dinan before that. Jb4 is the best piggyback. A miracle for the 320. Personally, I haven’t come across a faster tuned 328i. It also outruns stock 340i/35is. The 320 also loves meth or e85z, or just some good ol 100 octane.
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      01-11-2018, 03:47 PM   #52
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Quote:
Originally Posted by BMWtight2me View Post
Jb4 on the 320 is the best. Stick to map 5 if you want to play it safe. It will adapt performance output to whatever supporting mods you have as well. So adding a catless downpipe or larger intercooler will better your performance in map 5 as well.

Always look at your oil temp in a turbo car. Never gas it heavy till the oil temp rises. Jb4 or not.

I’ve been jb4 for 2 years, dinan before that. Jb4 is the best piggyback. A miracle for the 320. Personally, I haven’t come across a faster tuned 328i. It also outruns stock 340i/35is. The 320 also loves meth or e85z, or just some good ol 100 octane.
I can agree that map 5 is very safe, I've never had any issues with the jb4. And you made a great point saying jb4 or not. the 320i on map 5 is a beast Ive outran mustang it's (4.6), challenger rt's and even an e60 550i
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      01-12-2018, 10:20 AM   #53
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Quote:
Originally Posted by BMWtight2me View Post

I’ve been jb4 for 2 years, dinan before that. Jb4 is the best piggyback. A miracle for the 320. Personally, I haven’t come across a faster tuned 328i. It also outruns stock 340i/35is. The 320 also loves meth or e85z, or just some good ol 100 octane.
Thanks for sharing your experience..

Mike
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      09-27-2018, 12:05 PM   #54
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0-60 Times With Jb4 On 2013 Bmw F30 328i Xdrive

Hey guys,

I just got the JB4 for my 2013 BMW F30 328I X-DRIVE. I had the stage 1 before and tried it for a 5 months. My best numbers with the Stage 1 is 0-60 was 5.04 sec with a 1/4 mile time of 13.88 sec. I was very impressed. Here are the results I got using the JB4 stage 2 using various maps:

Map 0 = 0-60 5.68 sec 1/4 mile= 14.31
Map 1 = 0-60 4.97 sec 1/4 mile= 13.76
Map 2 = 0-60 4.88 sec 1/4 mile= 13.64
Map 7 = 0-60 4.69 sec 1/4 mile= 13.55
(not recomended to use this map unless car is modified) I took a chance to see.

This is pretty impressive for a car that can numbers like that and still get 23 city and 35 highway mpg.

I used to own a 1995 Camaro Z28 which I spent tons on mods: exhaust, shift kit, throttle body, ignition, ecu, headers, you name it. The best times I got at the track were 0-60 in about 4.4 sec 0-60 and 13.28 1/4 mile. Stock was 5.8 sec and 1/4 mile was 14.4. Not worth it for the money spent on mods.

JB4 was less than $500.00


Great product by BURGER MOTORSPORTS

Frank M
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      10-01-2018, 03:33 PM   #55
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Are there current instructions on hooking up the e85 wires on EWG n20 328?
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      10-03-2018, 02:27 PM   #56
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Quote:
Originally Posted by FRANKYBEEMER View Post
Hey guys,

I just got the JB4 for my 2013 BMW F30 328I X-DRIVE. I had the stage 1 before and tried it for a 5 months. My best numbers with the Stage 1 is 0-60 was 5.04 sec with a 1/4 mile time of 13.88 sec. I was very impressed. Here are the results I got using the JB4 stage 2 using various maps:

Map 0 = 0-60 5.68 sec 1/4 mile= 14.31
Map 1 = 0-60 4.97 sec 1/4 mile= 13.76
Map 2 = 0-60 4.88 sec 1/4 mile= 13.64
Map 7 = 0-60 4.69 sec 1/4 mile= 13.55
(not recomended to use this map unless car is modified) I took a chance to see.

This is pretty impressive for a car that can numbers like that and still get 23 city and 35 highway mpg.

I used to own a 1995 Camaro Z28 which I spent tons on mods: exhaust, shift kit, throttle body, ignition, ecu, headers, you name it. The best times I got at the track were 0-60 in about 4.4 sec 0-60 and 13.28 1/4 mile. Stock was 5.8 sec and 1/4 mile was 14.4. Not worth it for the money spent on mods.

JB4 was less than $500.00


Great product by BURGER MOTORSPORTS

Frank M

If you didnt change your gears in the Z, you're car wasn't performing as well as it could have.

No experience with JB4...flash tuned here
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      11-15-2018, 07:07 PM   #57
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Which map is better

Hey guys I want to know which map is better for my car, I have intercooler, downpipe, injen intake and 335i exhaust running with 93 octane fuel. And keep safe the engine of the car
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      11-16-2018, 12:45 AM   #58
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Quote:
Originally Posted by davo19 View Post
Hey guys I want to know which map is better for my car, I have intercooler, downpipe, injen intake and 335i exhaust running with 93 octane fuel. And keep safe the engine of the car
Not experienced with jb4 personally, but from what I've read I believe map 2 is best for cars with a downpipe
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      02-27-2019, 10:36 AM   #59
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0-60 and 1/4 mile times for BMS stage 2 2013 328i xdrive

I just ran 0-60 and 1/4 mile times for my BMS stage 2 on my 2013 328i xdrive 4 door. I added a drop in K&N filter. Everything else is stock on the car. Very impressed, when I tested this stock I had a 5.4-5.6 sec average 0-60, and 14.3-14.5 average 1/4 mile.

I was running map 2

I attached picks of the run:

0-60= 4.85
1/4 mile= 13.43

Anyone else run their 328i with stage 2 and mods?
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      02-27-2019, 12:57 PM   #60
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Quote:
Originally Posted by FRANKYBEEMER View Post
I just ran 0-60 and 1/4 mile times for my BMS stage 2 on my 2013 328i xdrive 4 door. I added a drop in K&N filter. Everything else is stock on the car. Very impressed, when I tested this stock I had a 5.4-5.6 sec average 0-60, and 14.3-14.5 average 1/4 mile.

I was running map 2

I attached picks of the run:

0-60= 4.85
1/4 mile= 13.43

Anyone else run their 328i with stage 2 and mods?
https://f30.bimmerpost.com/forums/sh....php?t=1572180
https://f30.bimmerpost.com/forums/sh....php?t=1488438

Yes.
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      07-13-2021, 10:30 PM   #61
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BMS stage 2 and can’t break into the 4s 0-60
Are you guys manually shifting ? Or just launch control and let the car shift
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