[Mikaeldarer]

Originally Posted by DrRobert

I don't have JB4 but I have PS2 and flashed to MHD Stage 2+ yesterday - I too felt it was real smooth around town but it crapped out on me on WOT. I'm proceeding directly to a custom MHD tune ASAP but remain interested in knowing if JB4+MHD BEF would be any better, especially for N55s with upgraded turbos.

I don't think there will be a huge difference powerwise between flash only vs BEF once both are out of beta, even on larger turbos. We will see!

[MHD Tuning]

Originally Posted by Mikaeldarer

I was PS1/FBO running JB4 E85 BEF until this morning. I removed JB4 and brought ethanol level down to around E25 before flashing the MHD Stage 2+ OTS.

First impression, car is running slightly smoother than it did with BEF while driving casually. But there is a noticeable difference in power during WOT in favor of the JB4 BEF.

I will see where I can get with a custom tune or the E30 OTS once released for now but will probably go back to JB4 BEF at some point

Your logs show you used the stg2 map, not stg2+. Power can be the same with or without jb4, it's a function of the tune aggressiveness.

Originally Posted by DrRobert

I don't have JB4 but I have PS2 and flashed to MHD Stage 2+ yesterday - I too felt it was real smooth around town but it crapped out on me on WOT. I'm proceeding directly to a custom MHD tune ASAP but remain interested in knowing if JB4+MHD BEF would be any better, especially for N55s with upgraded turbos.

OTS maps are, at least for now, for stock turbo.

[Johnny Boost]

http://datazap.me/u/johnny-boost/111...1-3-4-14-18-19

http://datazap.me/u/johnny-boost/111...ta=1-3-4-14-18

Links to my logs should be fixed. I also attached images just in case.

[Mikaeldarer]

Virtual dyno comparison between JB4 BEF and MHD OTS stg2+ Map 2.

Had around E50 in the tank for the JB4 BEF and E25 for the MHD OTS

[Johnny Boost]

Originally Posted by Mikaeldarer

Virtual dyno comparison between JB4 BEF and MHD OTS stg2+ Map 2.

Had around E50 in the tank for the JB4 BEF and E25 for the MHD OTS

Did you run map 5 or 7 with the JB4?

[Mikaeldarer]

Originally Posted by Johnny Boost

Did you run map 5 or 7 with the JB4?

JB4 log was on Map 7 using N20 TMAP, so Boost Target was 20 PSI

[Twisted Tuning]

Originally Posted by maxihari

I have Jb4 and am planning to add MHD. So that means stack it.

Though, I'm not sure how this works - can someone please explain it:

Let's say I flash MHD stage 2 (means I own stage 0 and stage 1 - along with variations)

So now, what map do I put Jb4 in? (assuming I download BEF map from MBS)
Which takes precedence?

Originally Posted by maxihari

oh.. .so does that mean that I dont flash with MHD OTS maps...
but instead, there's ANOTHER map created by BMS (BEF) that ACTS like MHD sourced maps?

Do not Flash an MHD OTS map to you car while the JB4 is still installed. The MHD OTS maps are not meant for use with the JB4. If you want to run the MHD OTS flash only maps, you need to completely remove the JB4 from the car.

As there is no bypass mode and it still manipulates load and etc. and it will cause poor performance of the MHD OTS flash.

Originally Posted by Mikaeldarer

Virtual dyno comparison between JB4 BEF and MHD OTS stg2+ Map 2.

Had around E50 in the tank for the JB4 BEF and E25 for the MHD OTS

Originally Posted by Mikaeldarer

JB4 log was on Map 7 using N20 TMAP, so Boost Target was 20 PSI

did you still have the JB4 connected to the car while running the MHD OTS? and that looks like stage 2, not 2+.

[Mikaeldarer]

Originally Posted by Justin@MHD

did you still have the JB4 connected to the car while running the MHD OTS? and that looks like stage 2, not 2+.

No, I fully removed JB4 before loading any MHD OTS maps. Just checked the log and confirmed it was Stg2+

[Peen]

My car is putting out about same virtual dyno with map7 BEF. Running strong!

[Mikaeldarer]

Originally Posted by Peen

My car is putting out about same virtual dyno with map7 BEF. Running strong!

Nice! That is on stock turbo?

[Johnny Boost]

Originally Posted by Peen

My car is putting out about same virtual dyno with map7 BEF. Running strong!

Is this your video on youtube?

[Peen]

Yeah that's mine, and yeah stock turbo. That was an earlier map and firmware running JB4 in MAP2.

Doing map7 again now, targeting 20PSI boost.

[Kevin39]

Originally Posted by Peen

Yeah that's mine, and yeah stock turbo. That was an earlier map and firmware running JB4 in MAP2.

Doing map7 again now, targeting 20PSI boost.

I'm also running the E85 BEF on Map 7. It runs like a champ.

I've been sending logs to Terry to help add to the data pool

[Johnny Boost]

Originally Posted by Peen

Yeah that's mine, and yeah stock turbo. That was an earlier map and firmware running JB4 in MAP2.

Doing map7 again now, targeting 20PSI boost.

Do you have the N20 TMAP also?

[Peen]

Originally Posted by Kevin39

I'm also running the E85 BEF on Map 7. It runs like a champ.

I've been sending logs to Terry to help add to the data pool

Yeah same here, probably like 200 emails and test files etc. Prob have sent like 200 logs total lol

Some of the changes he made I had issues with, like the spool mode map. But he turned it back on and is good again.

Terry is on top of it.

Originally Posted by Johnny Boost

Do you have the N20 TMAP also?

I don't, but I need to order it and BMS adapter this weekend. My TMAP is going bad.

[Johnny Boost]

Originally Posted by Peen

Yeah same here, probably like 200 emails and test files etc. Prob have sent like 200 logs total lol

Some of the changes he made I had issues with, like the spool mode map. But he turned it back on and is good again.

Terry is on top of it.



I don't, but I need to order it and BMS adapter this weekend. My TMAP is going bad.

Do you guys run map 7 everyday? Why not map 5?

[Kevin39]

Is the N20 tmap going to be useful on the stock turbo?

Originally Posted by Johnny Boost

Do you guys run map 7 everyday? Why not map 5?

Yeah I run map 7 every day. It's just more consistent for me than map5.

[Peen]

Originally Posted by Johnny Boost

Do you guys run map 7 everyday? Why not map 5?

I think Terry is still working on a proper map 5 for BEF.

I always ran map 7 before MHD anyways. My logs were always cleanest with it vs map 5

Originally Posted by Kevin39

Is the N20 tmap going to be useful on the stock turbo?

Yeah, I think it's high resolution. Terry called it an upgrade. Besides, doing Pure S2 some time soon so might as well do it now. About the same price anyways.

[Kevin39]

I was thinking it would just read higher boost pressures but that it wouldn't really be useful without the ps2. Good to know.

I would order a PS2 except I'm not sure I want to hassle with installing it myself on jack stands and I don't want to pay 50% of the price of the turbo to have someone else put it in. Too lazy and too cheap haha. I'll suck it up and do it eventually.

[Johnny Boost]

Originally Posted by Peen

I think Terry is still working on a proper map 5 for BEF.

I always ran map 7 before MHD anyways. My logs were always cleanest with it vs map 5



Yeah, I think it's high resolution. Terry called it an upgrade. Besides, doing Pure S2 some time soon so might as well do it now. About the same price anyways.

How many gallons of e85 are you using? Are you mixing with 91 or 93 octane?

[Peen]

I was 100% E85, even in that video.

Terry recently made some AFR changes and my HPFP finally started to tank. So far been good with about 10 gallons E85 and the rest 91 ACN.

[Cory S]

No need for MHD here. My setup is dialed in perfect running Map 6 with BMS BEF.