JB4

[ronik686]

Hi ive been debating whether or not to get a jb4 is was wondering ive heard some horror stories about the engine blowing out and such. what are some real concerns i should have before hand ? Is it worth it ? Any advice would help thanks !

[8600RPM]

Engine will grenade and ypu will lose all warranty the second the jb4 plugs in

[pikkagtr]

Also you'll get fired and your dog comes down with cancer

[NickRac]

Originally Posted by 8600RPM

Engine will grenade and ypu will lose all warranty the second the jb4 plugs in

Fact. The video below is from a guy who installed JB4 on his car. He didn't even get to give it any gas! Beware!

[Myaddiction]

Haha, so the answer is no. There are no concerns. No one has ever blown a motor with just a JB4. Who ever told you that is lying or an idiot or both.

Though it's not completely plug in and forget. If you're not car savvy and don't want to learn about it or your car get a stage 1 JB or a flash for a mindless extra 40-50 rwhp.

[ronik686]

Originally Posted by Myaddiction

Haha, so the answer is no. There are no concerns. No one has ever blown a motor with just a JB4. Who ever told you that is lying or an idiot or both.

Though it's not completely plug in and forget. If you're not car savvy and don't want to learn about it or your car get a stage 1 JB or a flash for a mindless extra 40-50 rwhp.

Haha alright thanks !

[Irishace]

Originally Posted by Myaddiction

Haha, so the answer is no. There are no concerns. No one has ever blown a motor with just a JB4. Who ever told you that is lying or an idiot or both.

Though it's not completely plug in and forget. If you're not car savvy and don't want to learn about it or your car get a stage 1 JB or a flash for a mindless extra 40-50 rwhp.

Is Shiv spreading rumors and propaganda again? I thought he left the BMW scene....

[babyboss]

Can Bmw tech online log in pickup JB was there even if removed ?

word is there are sensors besides ecu logging everything ><

[8600RPM]

After I've logged my stock car with jb4 and see stock ecu will hot 24 psi boost, I'm less Concerned running any tyne. Clearly even oem these turbos are designed to spin at 24 psi under certain conditions so clearly they can handle that

[Mike@N54Tuning.com]

Originally Posted by ronik686

Hi ive been debating whether or not to get a jb4 is was wondering ive heard some horror stories about the engine blowing out and such. what are some real concerns i should have before hand ? Is it worth it ? Any advice would help thanks !

What stories about engines blowing out have you heard? Links?

Mike

[ronik686]

Originally Posted by Mike@N54Tuning.com

What stories about engines blowing out have you heard? Links?

Mike

No links just personal stories of people who have done it tell me it gives a lot of problems the most extreme one was the engine giving out

[schnazzy]

Originally Posted by ronik686

Hi ive been debating whether or not to get a jb4 is was wondering ive heard some horror stories about the engine blowing out and such. what are some real concerns i should have before hand ? Is it worth it ? Any advice would help thanks !

Have you actually heard of someone blowing up their motor with a JB4? I don't mean, some guy said that some other guy heard that at sometime someone in a bar told him that he heard from a friend that someone one blew up their motor and he things someone else said they had a jb4.

[///M ARMY]

seems like the Jb4 has been very popular lately. Personally haven't heard someone blowing there motor. And if you do have issue, customer support is just a click away. Yes they have there own forum and own support system and offers different features that a "flash tune" and or piggybacks do not offer. Literally a plug in a play systems. Works great.

[Mike@N54Tuning.com]

Originally Posted by ronik686

No links just personal stories of people who have done it tell me it gives a lot of problems the most extreme one was the engine giving out

On the F8X platform?

Mike

[2SNAILS]

Originally Posted by Mike@N54Tuning.com

On the F8X platform?

Mike

Mike, this is how the rumors & bs starts! He said, she said, blah blah and no facts to support any F8X motors blown up from jb4!

[ASAP]

This motor (S55), like the N54 is nearly impossible to blow up... the ECU is extremely advanced and will do so many things to try to save the motor before a catastrophe happens...

The only blown motors that I have heard of on the turbo BMW platforms came from the following...

1) Leaning a motor out which is almost always the fault of the user. This almost can't happen on pump gas... Option 2 will happen far sooner.
2) Using improper octane for a tune that is too aggressive and experiencing insane knock.
3) Meth Failure
4) Some sort of inherent internal issue that happened during the manufacturing process.
5) Running some absurd amount of power (note that 800 WHP N54s can run fine).

Where I would be very careful is running E85 or meth... in either of those fuels, it is extremely imperative to monitor your fuel trims, AFR, and engine knock... If logs check out, there should be no issues.

[Mike@N54Tuning.com]

Originally Posted by Lemans 335i

Mike, this is how the rumors & bs starts! He said, she said, blah blah and no facts to support any F8X motors blown up from jb4!

I know which is why I am trying to get more details

Mike

[dmk08]

Originally Posted by ASAP

This motor (S55), like the N54 is nearly impossible to blow up... the ECU is extremely advanced and will do so many things to try to save the motor before a catastrophe happens...

The only blown motors that I have heard of on the turbo BMW platforms came from the following...

1) Leaning a motor out which is almost always the fault of the user. This almost can't happen on pump gas... Option 2 will happen far sooner.
2) Using improper octane for a tune that is too aggressive and experiencing insane knock.
3) Meth Failure
4) Some sort of inherent internal issue that happened during the manufacturing process.
5) Running some absurd amount of power (note that 800 WHP N54s can run fine).

Where I would be very careful is running E85 or meth... in either of those fuels, it is extremely imperative to monitor your fuel trims, AFR, and engine knock... If logs check out, there should be no issues.

I would agree with running E85 being sketchy. It seems to run fine in some peoples cars and not others. Oddly I used to boast for it when my friend ran it but I finally tried it in my car and it runs like crap. I had a good bit of hesitation on 4th gear pulls when running Map 2 with E85/93 mix w/o DP. No issues on 100 unleaded mix but that crap is $8.99/gallon here.

My local mechanic suggested I may be on a newer stock flash vs my friend but I'm not sure how we could check that.

I just run JB4 in stage 2 on map 1 and 93 octane all the time now. Car runs great and pulls plenty hard for the street.

I would consider a flash tune if anyone had ever posted some legit dynos. Has anyone even posted a dynojet from the ESS flash yet? I know people have it installed...

[ASAP]

Originally Posted by dmk08

I would agree with running E85 being sketchy. It seems to run fine in some peoples cars and not others. Oddly I used to boast for it when my friend ran it but I finally tried it in my car and it runs like crap. I had a good bit of hesitation on 4th gear pulls when running Map 2 with E85/93 mix w/o DP. No issues on 100 unleaded mix but that crap is $8.99/gallon here.

My local mechanic suggested I may be on a newer stock flash vs my friend but I'm not sure how we could check that.

I just run JB4 in stage 2 on map 1 and 93 octane all the time now. Car runs great and pulls plenty hard for the street.

I would consider a flash tune if anyone had ever posted some legit dynos. Has anyone even posted a dynojet from the ESS flash yet? I know people have it installed...

E85 isn't inherently sketchy but it is sketchy when you don't know what's going on with the tune. What makes E85 so sketchy is how it messes with fuel scaling/trims... not understanding this will lean your motor out. At this moment, the only way to see the problems that people are having is to have access to all tables in the ECU and make adjustments and basically experiment with what the issues could be. As far as I know, no one in this platform is mature enough to do that yet... In the N54 world, the E85 tuning is nearly perfected and everyone can run it without any hassles... any hassles that pop up can quickly be resolved. The Cobb AP did wonders to help in this regard with its logging capabilities and near full access to all ECU tables. Until flash tuning evolved, E85 tuning was extremely immature. Everything that I have heard regarded to any sort of flash tuning on this platform has been sketchy at best.

Meth IMHO is out of the question on a brand new 70K car... it can be made to work, it's just not something most are willing to risk.

Race gas is by far the best in terms of safety as it pretty much works like pump gas with little to no effect on fuel trims. The problem being availability and pricing.

Right now, the ideal setup is the Jb4 stg1 or stg2 pump gas tunes... for things to take off way further, flash tuning needs to significantly evolve.

[Taimur]

Originally Posted by dmk08

I would agree with running E85 being sketchy. It seems to run fine in some peoples cars and not others. Oddly I used to boast for it when my friend ran it but I finally tried it in my car and it runs like crap. I had a good bit of hesitation on 4th gear pulls when running Map 2 with E85/93 mix w/o DP. No issues on 100 unleaded mix but that crap is $8.99/gallon here.

My local mechanic suggested I may be on a newer stock flash vs my friend but I'm not sure how we could check that.

I just run JB4 in stage 2 on map 1 and 93 octane all the time now. Car runs great and pulls plenty hard for the street.

I would consider a flash tune if anyone had ever posted some legit dynos. Has anyone even posted a dynojet from the ESS flash yet? I know people have it installed...

Interesting, I have been running Stage 2 on MAP 2 with stock DPs and the car runs perfect. I also put in a couple of gallons of E85 with 10 gallons of 93 octane to test it and got zero issues, just some tire smoke

[Seattle135is]

Originally Posted by ASAP

E85 isn't inherently sketchy but it is sketchy when you don't know what's going on with the tune. What makes E85 so sketchy is how it messes with fuel scaling/trims... not understanding this will lean your motor out. At this moment, the only way to see the problems that people are having is to have access to all tables in the ECU and make adjustments and basically experiment with what the issues could be. As far as I know, no one in this platform is mature enough to do that yet... In the N54 world, the E85 tuning is nearly perfected and everyone can run it without any hassles... any hassles that pop up can quickly be resolved. The Cobb AP did wonders to help in this regard with its logging capabilities and near full access to all ECU tables. Until flash tuning evolved, E85 tuning was extremely immature. Everything that I have heard regarded to any sort of flash tuning on this platform has been sketchy at best.

Meth IMHO is out of the question on a brand new 70K car... it can be made to work, it's just not something most are willing to risk.

Race gas is by far the best in terms of safety as it pretty much works like pump gas with little to no effect on fuel trims. The problem being availability and pricing.

Right now, the ideal setup is the Jb4 stg1 or stg2 pump gas tunes... for things to take off way further, flash tuning needs to significantly evolve.

Thanks for the detailed response - makes so much sense - I'm running a JB4/DP's on Map1 - enough for me for now...

[AM4ZING]

Originally Posted by Taimur

Interesting, I have been running Stage 2 on MAP 2 with stock DPs and the car runs perfect. I also put in a couple of gallons of E85 with 10 gallons of 93 octane to test it and got zero issues, just some tire smoke

You run Stage 2 all the time? exhaust mod?