Jb4 custom map

[Bonez]

I am a 21 supra owner with a lock ECU. And I'm currently using JB4 was using OTS map and blown my turbo. Not pointing out who's recommendation or what leading to blown turbo.
But now I am with a new turbo/jb4 and a new custom map with @DaBears . I would like to have all the JB4 users in here to share their experiences or recommendations for JB4 tuner.
Let me share with you my experience first.
I've been running jb4 since March of 2021 at the beginning I'm doing map two and then graduate to three and E30 Map four with full bolt on such as AMS intake, AMS charged pipe, FI catless downpipe and full FI cat-back system.. anyway I'm talking to BMS about wanted more horsepowers and talk to one of their tuner and after back and forth on a few map he recommended me to try map five That's when my turbo blown, I believe map five is a little bit too high for the OEM turbo since we pushing 22 PSI.
So anyway I got a replacement OEM turbo since our car is still locked on the ECU.
Luckily some of the member in here recommend me to a tuner his name is @DaBears since I have work with him my car runs much better much smoother and produce much more powers than I expected to be out of JB4. Currently I am running E-40 the car felt great and produce great power, I was thinking somewhere next week would go to do Dyno session and see what kind of horsepower am I running.
So my purpose for this post is asking all the JB4 user is please share your experiences up here so us the 21 Supra owner can share and learn from each other.
Thanks in advance.

ive been thinking of getting the Jesse tune once you buy it does he just ask for your parts or do you actually need to go log data
Thanks In advance

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[zrk]

ive been thinking of getting the Jesse tune once you buy it does he just ask for your parts or do you actually need to go log data
Thanks In advance

You get logs for jesse.

 

[Supra 9]

ive been thinking of getting the Jesse tune once you buy it does he just ask for your parts or do you actually need to go log data
Thanks In advance

You need to do a data log and send it to him. And he will adjust and send it back to you and show you how to change.

 

[underdonk]

Went through this process with him recently for a 93 tune and will be doing an E35 tune with him soon. It really is a painless process and he's super responsive. Highly recommend. Big difference running an OTS vs. custom.

 

[Xproplayer]

Random question with the JB4 and custom tunes, is it easy (subjective, assuming a trained operator who has tuned other cars) to damage the vehicle with this setup? A buddy of mine bought tuning training for his 97 miata, so he has tuning experience but nothing boosted. I'd like to be able to help him learn and ofc I get a free private tuner, but at the same time I'm not going to risk if it's "easy" to cause damage.

 

[zrk]

Random question with the JB4 and custom tunes, is it easy (subjective, assuming a trained operator who has tuned other cars) to damage the vehicle with this setup? A buddy of mine bought tuning training for his 97 miata, so he has tuning experience but nothing boosted. I'd like to be able to help him learn and ofc I get a free private tuner, but at the same time I'm not going to risk if it's "easy" to cause damage.

Turbo tuning is very different than not turbo tuning.

 

[kaj]

Do our cars need separate ethanol sensors to run e85 or can the OEM ECU be tuned around it?

 

[GoldenEye]

@kaj , from what I’ve been told, the JB4 has a custom Ethanol map and you don’t need to add any sensors or flex fuel kit…

 

[zrk]

@kaj , from what I’ve been told, the JB4 has a custom Ethanol map and you don’t need to add any sensors or flex fuel kit…

JB4 doesn't have any such map, but you can tune a JB4 to run ethanol.

 

[GoldenEye]

@zrk , I’m still getting this stuff down. I’d like to start doing meth soon before the weather gets bad…

 

[zrk]

@zrk , I’m still getting this stuff down. I’d like to start doing meth soon before the weather gets bad…

Get it done!

 

[GoldenEye]

@zrk , not gonna lie bro I’m a bit skert bcuz I’ve never done anything like it before and I don’t think there’s any local shops that can do the install…

 

[zrk]

@zrk , not gonna lie bro I’m a bit skert bcuz I’ve never done anything like it before and I don’t think there’s any local shops that can do the install…

You can do meth yourself in your garage or driveway with handtools. No jack or anything required, you don't need to get under the car. The instructions are pretty straightforward, I can help you along the way if you need.

 

[GoldenEye]

@zrk, I will definitely keep that in mind! Thanks for your willingness to help a guy out!

 

[zrk]

@zrk, I will definitely keep that in mind! Thanks for your willingness to help a guy out!

If course, if you were closer, we could just do it here. haha.

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