JB4 Custom Map 93 Octane

[BMWAF]

JB+ is a static 2-4psi across the board with no configuration outside of that 2-4psi adjustment wheel.

Worth it? And I don't mean compared to all the other more exotic solutions. I mean, is it worth the price for whatever mild increase it produces? Other than not having significant gains, is there any good reason to not go down this path as a cheap and nasty cheeky increase?

I figure it's a good tide me over until the full unlock solution becomes less of a PITA.

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[Jakester]

Without going clone doesn't that leave MHD and BM3 on the same playing field as JB4? By that I mean no flex fuel, no antilag, big turbo, etc? Other than being a tad faster (taking your word for it as I don't have the experience to compare) what else can MHD do that JB4 path cannot?

I'm thinking if someone's goal is...let's say....500hp. If they can accomplish this with a JB4, Eblend, and meth or they can go unlock (not clone) with similar mods and make the same hp why would one change paths from JB4 to MHD now? Especially considering if they ever wanted to go back to stock to sell (which tbh I have no intentions of doing) they can simply unplug the JB4 and swap parts back out. Doesn't JB4 have safety settings that will drop down to a lower map if trouble starts? Does MHD/BM3 offer the same?

What does MHD/BM3 offer that would convince someone, other than race car, to switch paths or chose it over JB4? I don't ask this with venom on my tongue - genuinely just curious. I fully understand if folks wanted a 700whp race car, but for someone who just wants to go faster is there any real advantage?

Sorry for the long post. Your post got me thinking and if there is a giant benefit then maybe I should rethink my path.

edit: spelling error.

I cannot speak for BM3 as I have never used it. I am not necessarily suggesting anyone switch anything. Just pointing out my opinion based on experience from both jb4 and mhd platform. Going jb4/meth/ E35 tune did cost me more then getting the Femto unlock and using MHD with ots maps. For me personally flex fuel tuning was not something I was interested in. You can go big turbo and/or port injection if you would like to with the unlock and MHD or you can keep it stock turbo. It also would be more convenient to have an unlock with MHD then a jb4 if you wanted to revert back to stock. Jb4 you will have to disconnect everything. Mhd you flash back to stock with your phone in 15 seconds or less and your done. Honestly everything really depends on your unltimate goals and the tuner you want to work with. All options serve their purpose and have their place. You can take my word for it or not but the car absolutely runs way better and faster on an E40 ots mhd map then it ever did using jb4/ e35/ meth/ tune. I hope my feedback helps

 

[zrk]

Worth it? And I don't mean compared to all the other more exotic solutions. I mean, is it worth the price for whatever mild increase it produces? Other than not having significant gains, is there any good reason to not go down this path as a cheap and nasty cheeky increase?

I figure it's a good tide me over until the full unlock solution becomes less of a PITA.

Yes

 

[underdonk]

Interesting. Can you please comment a little more on the effect and your experiences of the JB+. While I understand its mild, do you think it's worth it. I like the fact that it is non intrusive and provides a little extra hp for near zero effort. The reality is that I am coming from a 150kw/200hp car so a stock Supra is already batshit crazy power for me.

Haha! I bet it feels like a beast coming from what you did. So I bought the JB+ and said I was never going to a JB4 because I didn't want to dick around with it. You see how that went. ? Like @zrk said, it's a minor increase in boost across the board. Can you feel it? Yes. Especially with it turned all the way up, which I did the entire time I owned it with no issues (people have reported CELs from it cranked). It for sure met my expectations.

 

[_Sp1ral0ut]

I cannot speak for BM3 as I have never used it. I am not necessarily suggesting anyone switch anything. Just pointing out my opinion based on experience from both jb4 and mhd platform. Going jb4/meth/ E35 tune did cost me more then getting the Femto unlock and using MHD with ots maps. For me personally flex fuel tuning was not something I was interested in. You can go big turbo and/or port injection if you would like to with the unlock and MHD or you can keep it stock turbo. It also would be more convenient to have an unlock with MHD then a jb4 if you wanted to revert back to stock. Jb4 you will have to disconnect everything. Mhd you flash back to stock with your phone in 15 seconds or less and your done. Honestly everything really depends on your unltimate goals and the tuner you want to work with. All options serve their purpose and have their place. You can take my word for it or not but the car absolutely runs way better and faster on an E40 ots mhd map then it ever did using jb4/ e35/ meth/ tune. I hope my feedback helps

It does. Thanks. I am an overthinker sometimes. My greatest obstacle is myself at times.

 

[Jakester]

It does. Thanks. I am an overthinker sometimes. My greatest obstacle is myself at times.

I can relate

 

[BMWAF]

Haha! I bet it feels like a beast coming from what you did. So I bought the JB+ and said I was never going to a JB4 because I didn't want to dick around with it. You see how that went. ? Like @zrk said, it's a minor increase in boost across the board. Can you feel it? Yes. Especially with it turned all the way up, which I did the entire time I owned it with no issues (people have reported CELs from it cranked). It for sure met my expectations.

After the test drive I was properly convinced. Have a MY23 on order in a manual transmission. Thanks for the information.. sounds like exactly what I want as a refresh after a year or so if I get used to the stock power. Hopefully a non crazy expensive unlock solution presents itself by then.

 

[underdonk]

After the test drive I was properly convinced. Have a MY23 on order in a manual transmission. Thanks for the information.. sounds like exactly what I want as a refresh after a year or so if I get used to the stock power. Hopefully a non crazy expensive unlock solution presents itself by then.

Sure thing - I'm hoping for an unlock, as well. Just one more week!

 

[FLtrackdays]

After the test drive I was properly convinced. Have a MY23 on order in a manual transmission. Thanks for the information.. sounds like exactly what I want as a refresh after a year or so if I get used to the stock power. Hopefully a non crazy expensive unlock solution presents itself by then.

I’m just getting comfortable that I have a JB4 hooked up to my car. How wide of a rabbit hole would an unlocked ECU car open? I can literally turn my JB4 on/off and pick which map I want. With my limited knowledge and my fav race team dissolved, I’m not sure what more it would provide. I definitely don’t want more power = down time on track. I’ve seen enough people play with cooling issues instead of time spent on their driving skill or car setup. That being said, if you’re going to drag your car or just do it for fun, absolutely!

We’d always get a laugh of the dudes with sooooooo much money and the 1000+hp club stickers on their cars bring them to the track and not be able to finish a single session. If they were even serious about tracking their cars, the 1st thing John Dean and Sick Sideways would do, would be to dial down the hp. I‘m really happy with the hp gains with this custom map and I can use 93 octane gas = focus more on track. Loving it! To each his own for sure…. As long as you’re having fun

 

[NitroYellowMKV]

So far super happy with the stock power level on my 23 Manual, feels super strong, I've had the jb4 sitting for months before the car even came, and eventually I will put it on with a custom jesse 93 tune, not for the more power but just to make it as safe and smooth and possible as everyone says going to a custom 93 tune on jb4 is not about power but more so smooth and useable safe power, I bet @Jesse DaBears can chime in on this.

 

[BMWAF]

So far super happy with the stock power level on my 23 Manual, feels super strong, I've had the jb4 sitting for months before the car even came, and eventually I will put it on with a custom jesse 93 tune, not for the more power but just to make it as safe and smooth and possible as everyone says going to a custom 93 tune on jb4 is not about power but more so smooth and useable safe power, I bet @Jesse DaBears can chime in on this.

I would very much like to hear about this.

 

[Dr. Supra]

I don't mean to speak out if turn or barge in here on the conversation but as someone who has ran an e35 with methanol injection tuned by Jesse I don't really understand why people are still going this route at this point. I do not mean to bash jb4 at all as it was an amazing tool to use in time of need when no other options were available and I enjoyed the results thoroughly.
But with the prices being extremely close and competitive between buying a jb4/custom tune vs unlock and ots maps it kind of seems going a bit backwards at this point. The jb4/ tune/ meth set up it was somewhere around $1700 total. And that was installing the methanol kit and lines myself not paying for labor. My unlock and mhd software cost me just under $1500. I will tell you that the ots maps on mhd are absolutely faster and the car runs much smoother. If you are not going to run methanol w/ jb4 then you may save $500 not going the unlock route but it's not worth that little amount of savings imo as we did not buy these cars to penny pinch. At least I hope not. Just my thoughts that I wanted to share from my own experience in case anyone was on the fence about either route to take.

Why did you choose mhd and not bm3? I sent mine to get unlocked and I'm choosing bm3 because it has more features compared to mhd

 

[Dr. Supra]

It does. Thanks. I am an overthinker sometimes. My greatest obstacle is myself at times.

Because bm3 has flexfuel, map switching on the fly, anti-lag. Mhd does not have that. Jb4 doesn't come near the features bm3 offers. And can push more hp on bm3 and mhd compared to jb4.

 

[BMWAF]

I’m just getting comfortable that I have a JB4 hooked up to my car. How wide of a rabbit hole would an unlocked ECU car open? I can literally turn my JB4 on/off and pick which map I want. With my limited knowledge and my fav race team dissolved, I’m not sure what more it would provide. I definitely don’t want more power = down time on track. I’ve seen enough people play with cooling issues instead of time spent on their driving skill or car setup. That being said, if you’re going to drag your car or just do it for fun, absolutely!

We’d always get a laugh of the dudes with sooooooo much money and the 1000+hp club stickers on their cars bring them to the track and not be able to finish a single session. If they were even serious about tracking their cars, the 1st thing John Dean and Sick Sideways would do, would be to dial down the hp. I‘m really happy with the hp gains with this custom map and I can use 93 octane gas = focus more on track. Loving it! To each his own for sure…. As long as you’re having fun

Dude.. this is exactly my thinking minus the track focus. Just a bit more kick for as little effort and pain as possible. Hence me tossing up between JB+ and JB4. Always on 93ULP.

 

[NitroYellowMKV]

Dude.. this is exactly my thinking minus the track focus. Just a bit more kick for as little effort and pain as possible. Hence me tossing up between JB+ and JB4. Always on 93ULP.

jb+ is great for the money, but a proper custom tune on jb4 is prob the safest and smoothest way to get the most power out of it

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