[greg21040]

I've been reading a lot about the JB4 with BEF and was hoping someone that is running it could give me some reviews.
BMS showed my a dyno sheet with 461 whp and that's without WMI.
Is it easy to flash and change maps?
How many maps are there?
Are the OTS maps good or do they need tweaking?
Likes and dislikes?

[baldeagleman]

Probably going to do this setup in ~1 week so stay tuned. I am trying to find a place to dyno around here and I'll report back.

[greg21040]

Originally Posted by baldeagleman

Probably going to do this setup in ~1 week so stay tuned. I am trying to find a place to dyno around here and I'll report back.

Yeah, I've got the JB4 in the cart but haven't pulled the trigger. Wish I didn't sell my last one!

[baldeagleman]

Are you going to run the MP2 flash or the MHD?

[greg21040]

Originally Posted by baldeagleman

Are you going to run the MP2 flash or the MHD?

I'll have to experiment. Ardno from BMS said it was compatible, but Terry from BMS wasn't sure.
I probably will get their BEF though.

[baldeagleman]

Just did the JB4 + MHD BEF yesterday. Power feels a lot smoother and better to drive all around. I won't be able to drag my car or dyno or anything for a bit because of 4th of July stuff, but I do plan on at least dynoing the car. Running just 93/10 pump gas, no meth.

Took about 30 minutes for initial stage0 flash and another 2 minutes for the map flash provided by BMS. I just followed these instructions

https://www.n54tech.com/forums/showthread.php?t=57432

Then you just have to update JB4 firmware and enable Future Use D bit 6 which is now called options in the JB4 interface.

[greg21040]

Originally Posted by baldeagleman

Just did the JB4 + MHD BEF yesterday. Power feels a lot smoother and better to drive all around. I won't be able to drag my car or dyno or anything for a bit because of 4th of July stuff, but I do plan on at least dynoing the car. Running just 93/10 pump gas, no meth.

Good to hear. Mine probably won't arrive until beginning of next week. I'm just going to have to dig through the maps until I find one with my mods plus cold start delete.
Are the maps labeled with what it does? Like DP, CAI, 93 octane, etc?

[baldeagleman]

Originally Posted by greg21040

Good to hear. Mine probably won't arrive until beginning of next week. I'm just going to have to dig through the maps until I find one with my mods plus cold start delete.
Are the maps labeled with what it does? Like DP, CAI, 93 octane, etc?

I just emailed Terry from BMS with my setup and he told me which map to use.

[greg21040]

Originally Posted by baldeagleman

I just emailed Terry from BMS with my setup and he told me which map to use.

It doesn't get any easier than that!