[drapzzy]

Hi All,
Wanted to make a review of the jb4 even since I got it over 3 months ago. The only engine mods I have done to my car (n26 328i) is Charge Pipe and the tune itself. So right of the bat stage 1 is a noticeable difference now at first you can feel it almost instantly, but I will say after a month or two you forget about the power completely but Burger motorsports does claim that its a 25-40 HP gain from the stock boost and peaks at 22 PSI on stage 1 (correct me if im wrong). Now some people may hate this but it only kicks on after 50% throtl know if you think this is a bad think this might not be the tune for you, but for daily driving a car i think this is perfect because you don't need the power if you are not driving the car hard. Secondly, I prefer Jb4 over others because it wont be as dangerous when voiding the warranty as its not a ECU remap put a piggyback system that directly connects to the intake, turbo and monitors and tricks the system into making more power. Let me know if you have any questions or concerns and ill the best to help you out

[chowser51]

stealerships can detect piggyback mods even after you removed them if they dig deep enough. I highly doubt all piggyback claims of their hp additions. do a stock run on a dyno, then do a run with your tune and measure the difference there.

i had a jb+ on my F33 for a few months and didn't like the way it randomly kicked in so I did a bm3 stage 1 flash (b46 engine). the increase was more linear and noticeable from stop. A few dyno runs showed it added about 23 hp. I didn't think to go to the dyno when I had the jb+.

in my f39, I'm still under warranty and have the tdi piggyback box in it. i get another free oil change soon and I don't plan on removing it. the tech will see it and i frankly don't care if they note it in their system. they knew my f33 was modded and when my ecu broke, it was still replaced at no charge to me and i was able to reflash bm3 on it.

[drapzzy]

Originally Posted by chowser51

stealerships can detect piggyback mods even after you removed them if they dig deep enough. I highly doubt all piggyback claims of their hp additions. do a stock run on a dyno, then do a run with your tune and measure the difference there.

i had a jb+ on my F33 for a few months and didn't like the way it randomly kicked in so I did a bm3 stage 1 flash (b46 engine). the increase was more linear and noticeable from stop. A few dyno runs showed it added about 23 hp. I didn't think to go to the dyno when I had the jb+.

in my f39, I'm still under warranty and have the tdi piggyback box in it. i get another free oil change soon and I don't plan on removing it. the tech will see it and i frankly don't care if they note it in their system. they knew my f33 was modded and when my ecu broke, it was still replaced at no charge to me and i was able to reflash bm3 on it.

I guess it really depends on the dealership and how strict they are on those things

[mike@x-ph.com]

Here is a dyno with the difference with stock



there are hundreds of thousands of tuned cars, they all get warranty done, i don't think I have ever heard of a single case with getting caught after removing the tune.

Congrats OP, glad you like the new tune

[drapzzy]

Originally Posted by mike@x-ph.com

Here is a dyno with the difference with stock



there are hundreds of thousands of tuned cars, they all get warranty done, i don't think I have ever heard of a single case with getting caught after removing the tune.

Congrats OP, glad you like the new tune

I appreciate the graph mike, is this on a stock car with just jb4 stage one or is there any bolt ons?

[mike@x-ph.com]

Originally Posted by drapzzy

I appreciate the graph mike, is this on a stock car with just jb4 stage one or is there any bolt ons?

Stock car

[drapzzy]

Originally Posted by mike@x-ph.com

Stock car

Ok great, what upgrades can you suggest to push 300 to the wheels on pump gas, Like I stated I have charge pipe only but its for reliability and doesn't really do anything towards power gains

[mike@x-ph.com]

Originally Posted by drapzzy

Ok great, what upgrades can you suggest to push 300 to the wheels on pump gas, Like I stated I have charge pipe only but its for reliability and doesn't really do anything towards power gains

intercooler + charge pipe + downpipe + intake + E85

[drapzzy]

Originally Posted by mike@x-ph.com

intercooler + charge pipe + downpipe + intake + E85

So im assuming if it was normal 91 pump gas we would be looking at around 280, I want to pull the trigger on downpipe but I have a muffler delete I don't want it to be that loud but I do have secondary cats sooooo...

[mrphotoman]

Originally Posted by mike@x-ph.com

intercooler + charge pipe + downpipe + intake + E85

so a n20 can run on e85 without a tune, only using a piggyback? that doesnt sound right

[drapzzy]

Originally Posted by mrphotoman

so a n20 can run on e85 without a tune, only using a piggyback? that doesnt sound right

no max you can run is e30 on the stock fuel pump

[mike@x-ph.com]

Originally Posted by mrphotoman

so a n20 can run on e85 without a tune, only using a piggyback? that doesnt sound right

the piggyback is a tune. You can run E85 with a piggyback only, keep your mix at E30 with a stock fuel pump.

[mrphotoman]

Originally Posted by mike@x-ph.com

the piggyback is a tune. You can run E85 with a piggyback only, keep your mix at E30 with a stock fuel pump.

so the jb+ and e30 will make a noticeable difference? is the dyno sheets you posted e30 or e85 with the jb+? thanks

[mrphotoman]

i have a 2016 328i xdrive with the jb+ injen intake and Active Autowerke BMW F2x/ F3x 228/328/428 Signature Exhaust all from extreme power house.

So if I mix 70% 93 octane and 30% e85 I should see a nice power increase? does it usually take a tank before it picks up the extra power?

about how much would you guesstimate I would make compared to just running 93 octane?

Thanks for all the info

[mike@x-ph.com]

Originally Posted by mrphotoman

so the jb+ and e30 will make a noticeable difference? is the dyno sheets you posted e30 or e85 with the jb+? thanks

If you are running E85, i recommend you get the JB4 instead and the flex-fuel kit for the best results.

[mrphotoman]

Originally Posted by mike@x-ph.com

If you are running E85, i recommend you get the JB4 instead and the flex-fuel kit for the best results.

can e30 be ran on the jb+ where it simply increases boost? would it run lean? would it have any power increase?

I understand the jb4 is an actual tuner where the jb+ is just increasing boost

[mike@x-ph.com]

Originally Posted by mrphotoman

can e30 be ran on the jb+ where it simply increases boost? would it run lean? would it have any power increase?

I understand the jb4 is an actual tuner where the jb+ is just increasing boost

As long as you are not maxing out your fuel trims, the ECU will adjust, and it won't run lean. The problem with the jb+ is that it blindly adds boost and cannot monitor anything else. If you are running lean, or over-boosting, you won't know until a more significant problem occurs.

So to answer your question, yes, you can make more power with the JB+ and E85; you also can run it without any issues, but you are doing so blindly, so keep the E85 mix very low.

The Jb4 is the better option as you can make a lot more power safely since you can monitor the trims, and you can add more E85 if you have more room and make even more power.
It also got a failsafe that will apply stock boost if the car runs lean. If this happens with a Jb+, you are going to run into a significant issue that might damage your engine
it's just not worth it to save $200 on a lesser tune.

[mrphotoman]

Originally Posted by mike@x-ph.com

As long as you are not maxing out your fuel trims, the ECU will adjust, and it won't run lean. The problem with the jb+ is that it blindly adds boost and cannot monitor anything else. If you are running lean, or over-boosting, you won't know until a more significant problem occurs.

So to answer your question, yes, you can make more power with the JB+ and E85; you also can run it without any issues, but you are doing so blindly, so keep the E85 mix very low.

The Jb4 is the better option as you can make a lot more power safely since you can monitor the trims, and you can add more E85 if you have more room and make even more power.
It also got a failsafe that will apply stock boost if the car runs lean. If this happens with a Jb+, you are going to run into a significant issue that might damage your engine
it's just not worth it to save $200 on a lesser tune.

Okay, thanks for all the help I appreciate it!

[Serial BoX]

Originally Posted by mrphotoman

Okay, thanks for all the help I appreciate it!

Do your car a huge, huge favor. Don't start playing around with the Fuel mixture with a simple piggy back tune if its your daily driver. Your but dyno is barely going to feel anything, and your chances of damaging your engine go up exponentially.