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-   -   JB4 N54 Hybrid Turbo Setup Directions (https://www.n54tech.com/forums/showthread.php?t=33200)

Terry @ BMS 10-20-2015 04:58 PM

We've found our hybrid off the shelf flash maps work great. One customer ran 133mph and another 130mph using these maps with PURE and VT2 turbos, and JB4 set to around 25psi.

Drow 10-21-2015 06:20 AM

Hello, thx for all.
I need more info: We need 1 or 2 RB PCV valve ?
And where is she ? I don't find this.

Have you some pics ?

Thx a lot !

Terry @ BMS 10-21-2015 08:57 AM

Just 1 PCV, it's behind the PCV screw on cap. :)

Drow 10-25-2015 07:33 AM

I have some trouble with my French numbered bmw 1M,
It is what we call in France the goat

It means that it makes holes in the acceleration

I have an engine defect that lights, I will tomorrow, disconnect the battery, 15 minutes to reset the boxes. (I had left the key in the ignition by removing the battery...)

The module window, flashing, etc no longer works so I was unable to bring the car home from the garage.


I however would echo what research Monday, however could you help me on the following points:



Quote:

Originally Posted by Terry @ BMS (Post )
Hey guys,


1) Larger than OEM turbos require a back end flash map to be loaded via the BB free software or MHD software. While the maps are similar we suggest using MHD software if possible as there is some additional tuning flexibility with the calculated torque and load limits that makes the back end flash map a little better.

How do this ?
I don't understand this explain ( i'm french )


Quote:

Originally Posted by Terry @ BMS (Post )

2) We strongly suggest the N20 3.5bar TMAP sensor and required adapter on our site. This will allow proper boost control up to 36psi. The OEM sensor can not see/control much over 20psi.

I have done change the N20 3.5bar TMAP


Quote:

Originally Posted by Terry @ BMS (Post )
3) We strongly suggest a BMS OCC, RB PCV valve, and a high flow inlet system with larger turbos.

DONE


Quote:

Originally Posted by Terry @ BMS (Post )
4) Use the flash map that most appropriately matches the octane to be used. For pump gas no meth use PUMP, for pump gas with meth or light E85 or race gas mixtures use RACE, and for 40% E85 or more use E85.

I use Normal gas so : map 1 - 2 or other ?

Quote:

Originally Posted by Terry @ BMS (Post )
5) For E85 no meth we suggest adding in TBI or port injection.

no concern me, i think



Quote:

Originally Posted by Terry @ BMS (Post )
6) Larger turbos may require special duty bias adjustments to get boost on target. We're currently testing some modified OEM specific JB4 firmware changes to duty bias adjustment and spool up logic and will update this thread with the details when we have them.

I don't understand this too


Quote:

Originally Posted by Terry @ BMS (Post )
7) We'd suggest starting with a low map like map 2 to evaluate boost control and then working up from there. We'll post some JB4 map suggestions by fuel type shortly.

okok i go try in map 2

Drow 10-26-2015 08:35 AM

Hi,
When i put N20 3.5bar TMAP sensor I have motor error. And trouble and hole with acceleration

Bullitt1841 10-26-2015 08:40 AM

Quote:

Originally Posted by Drow (Post )
Hi,
When i put N20 3.5bar TMAP sensor I have motor error. And trouble and hole with acceleration

Did you tell the JB4 that you are running the 3.5 bar TMAP sensor?

Drow 10-26-2015 09:01 AM

No I don't. How do that ?


I have a second trouble I have so much oil escap from center of turbo.
The problem is related? or it just simply turbo.

dawhiz 10-27-2015 12:55 PM

Quote:

Originally Posted by Drow (Post )
No I don't. How do that ?

In the JB4 program you will see a N20 0/1, set it to 1.

Drow 10-27-2015 03:43 PM

Quote:

Originally Posted by dawhiz (Post )
In the JB4 program you will see a N20 0/1, set it to 1.

I do this tomorrow morning !!




My hybrid turbos piss oil through the centre, this may be linked to the JB4?


This seem weird to me because two slurs
It is a leak! as if he had too much pressure or that the turbo is dead at the level of the sealing, but both at the same time?

shoepac11 10-28-2015 10:40 AM

I'm fbo, with RBs. No meth. No inlets. No N20. If I'm running 30% E85, should I use the race flash, or the hybrid? I never tried the hybrid, but the race flash feels nasty on map 5.

Fmonteiro444 10-28-2015 10:50 AM

Quote:

Originally Posted by shoepac11 (Post )
I'm fbo, with RBs. No meth. No inlets. No N20. If I'm running 30% E85, should I use the race flash, or the hybrid? I never tried the hybrid, but the race flash feels nasty on map 5.

I used the difference tool in TunerPro between MHD_HYBRID_E85 and MHD_E85. The Hybrid flash runs slightly less timing and richer AFR.

Drow 10-28-2015 02:41 PM

Quote:

Originally Posted by dawhiz (Post )
In the JB4 program you will see a N20 0/1, set it to 1.

Perfect ! Thx a lot !

There is no error anymore !
But I don't have so much power 0-3000 tr/min like no turbo, but my trubo piss oïl, so i gonna mount my OEM turbo again.

If no oil, i send my Hybrid turbo for repair & tests

I give you in touch.


I have enter this parameter : It's OK for Hybrid turbo ?
http://img15.hostingpics.net/pics/199100V8B6F1.jpg

do not pay attention to the rest, because I took a picture on the net, I put the same information for the part to the left but right, I well validated for the N20

shoepac11 10-29-2015 12:07 PM

Quote:

Originally Posted by Fmonteiro444 (Post )
I used the difference tool in TunerPro between MHD_HYBRID_E85 and MHD_E85. The Hybrid flash runs slightly less timing and richer AFR.

I'm just using the BB software, so that option is out. I'm just gonna try it out and see how it goes. Thanks for the tip though.

Stucks 11-04-2015 04:29 PM

Setting all duty bias tuning rpm fields to 50 would essentially disable it (like when I had it set to 0 before) regardless of what fud is set to, right?

Terry @ BMS 11-04-2015 10:01 PM

50 runs the internal curve without modification. But if you go FUD = 95 like we suggest for the larger turbos, then we've removed RPM gain from that internal curve. So you'll need to have duty bias ramp up as a function of RPM at some slope that will vary based on the actual turbos and inlets used.

mj6234 11-15-2015 06:27 PM

I think I am going to give a JB4 a go. I have upgraded twins, inlets on the way, a clutch on the way and want to be able to easily run > 21psi if needed. You can flash using MHD on map 0 right? 5xx for the integration it provides seems like a really great deal.

Terry @ BMS 11-15-2015 06:28 PM

Right just set the JB4 to map0 when using the OBDII port.

erwan35 11-16-2015 01:12 PM

Need some advise terry..
My car is bmw 335i e92 2007 n54 rhd 6at.
Mods are ;
Jb4 g5iso
Bms dci
Bms occ
Bms cabin filter
Vrsf ***
Fmic
Hybrid turbos td04
Vtt inlet 2"
Mhd/bms flash race
Ron97 shell
Meth w fsb jb4 settings 60addy and 50scale and fub set 2.
My question is, is it ok if i set to fub 2? Since this setup gvs me major boost!! I really love it!
I need this since drag race is only for 300metres. With fub 2, my torque is incredible.
Launch with 2nd gear and 2k rpm.
But is it ok? Only use meth when racing, otherwise pump flash.

Terry @ BMS 11-16-2015 01:14 PM

Option 2 for meth is spray and pray. The JB4 will not hold boost lower until meth is spooling and will not consider knock while meth is flowing. If using racing gas its fine but I don't think its a good idea for pump gas.

erwan35 11-16-2015 01:19 PM

What if i put more meth since i have access with 100% meth

Terry @ BMS 11-16-2015 01:38 PM

That has nothing to do with the nature of the setting and meth safety system.

erwan35 11-16-2015 01:49 PM

Ok understood!

Younge60 11-20-2015 05:32 PM

Subscribed.

Eristoff 11-23-2015 03:54 PM

So i just set FUD=95, set the target boost per RPM, and scale duty bias up to match FF curve with PWM? Dont need to lock the curve, shape it and unlock it as we do without FUD=95? As for PID, shall i keep it in stock value 25 or shall io start with 15 and adapt it to the result curves? And in the end of the tuning I keep FUD=95 for daily driving and WOT or turn it to 0 again?
Just to make sure if I complete understood.
Thanks in advance

Terry @ BMS 11-24-2015 10:39 AM

Soon FUD=95 will be the default setting if running a 3.5bar TMAP sensor. Which will require you to enter a duty bias curve that goes up as RPM goes up. Until then you'll just have to tune it in without locking FF.


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