Jb4 (bmw m4) map questions

[New435iguy]

Hey guys noob here.

I have a 2015 dct m4
Catless downpipes
Jb4
Live in Cali so only 91 gas.

Can I run map 2?
I'm trying to figure out if map 5 is auto learning

http://www.n54tech.com/forums/showthread.php?t=17441
This seems to be for an older version? Can I access this in the m4?

These jb4 guys really need to make a nice page
On their website explaining what has what it's like a goddam
Maze trying to find some info lol.

Thanks!

[Steveo]

This is the thread you want:

http://www.n54tech.com/forums/showthread.php?t=25401

[New435iguy]

Thanks!

Any thoughts on the map 2 with downpipes but 91 gas?

[8600RPM]

No

[jwilliams]

You need better fuel to run map2. Same seeing as you have downpipes aswell. Is there nowhere near you that sells premium fuel.

[New435iguy]

No all we got is 91,
So best map is map 1 I'm guessing?
Seeing as this version does not have auto tuning for some reason

[///M ARMY]

You can run a little E85 with Map2. E85 is the game changer with the JB4

[Bowser330]

Originally Posted by New435iguy

No all we got is 91,
So best map is map 1 I'm guessing?
Seeing as this version does not have auto tuning for some reason

Do what BMS and many many others do and add a little torco, or nos (race formula) to your tank of 91...DIY 93.

One can of Torco 32oz costs 27$ (Amazon Prime),use 1/3 or ~11oz to make 91 into 93 so 9$/Tank.

So an incremental $0.60 per gallon (assuming 15 gallons) for 93 equivalent fuel.

E85 as mentioned previously is also a great option to boost octane

[Mike@N54Tuning.com]

Originally Posted by ///M ARMY

You can run a little E85 with Map2. E85 is the game changer with the JB4

+1 that would work...

Make sure your fuel connectors is hooked up

Mike

[New435iguy]

So map 2 is not safe unless I add fuel additive or use 93 correct even tho I have downpipes.
That's my main question.

I'm seeing that map 3 is saying its for 91 octane and less aggressive than map 1....

Does that mean I need to use map 1 with 93 also?

[pikkagtr]

Originally Posted by Mike@N54Tuning.com

+1 that would work...

Make sure your fuel connectors is hooked up

Mike

Question for you Mike,
Once the obd adaptor is available, which wires no longer need to be connected under hood ie spliced and which are still required to be connected for map 2 with e85
TIA

[TeKiZeRo]

You need at least 93+ octane to run Map 2. If you want to use 91 octane, then Map 3 would be a better choice.

[New435iguy]

So then what's the diff between map 1 and map 3 lol

[335itoM]

Originally Posted by New435iguy

So then what's the diff between map 1 and map 3 lol

Map 3 is specific for those running 91 octane. Less aggressive as map 1.

[sadeem28]

could I use 94 octane ?

[335itoM]

Originally Posted by sadeem28

could I use 94 octane ?

Yes, the higher the octane the better performance.

[New435iguy]

Just called supreme performance spoke with drew you can run map 2
It won't hurt it will be same as map 1 but obviously the higher the octane the better it will be.

[Mike@N54Tuning.com]

Originally Posted by New435iguy

Just called supreme performance spoke with drew you can run map 2
It won't hurt it will be same as map 1 but obviously the higher the octane the better it will be.

I would not run map2 on 91 octane gas. This is what map3 / map1 is designed for.

JB4_S55 Map Guide as of v3.6 Firmware:

Map 0: Disable JB4 / Full Pass Through Mode
Map 1: Stage1 map adding approximately 40whp and 40wtq across the power band on pump gas. Suitable for all stages and fuel mixtures.
Map 2: Slightly more aggressive version of map 1 intended for vehicles with exhaust modifications and 93+ octane fuel. Can also be used with E85 and racing fuel mixtures. Requires Stage2. Stage3 fuel connector suggested.
Map 3: Slightly less aggressive version of map 1 intended for vehicles running on lower grade fuels such as 91 octane. Requires Stage2.
Map 4: OEM performance but with JB4 active for datalogging only.
Map 5: //M low torque (evaluation) map.
Map 6: Custom tuning map.
Map 7: Race gas map. Requires 100 octane unleaded fuel and for the fuel mass connector to be installed. Can be used with or without the EWG connectors but will make more power with the EWG connectors installed. This map can also be used with up to 35% E85 but in some vehicles & conditions this may cause a high fuel pressure drop and resulting stuttering. If this occurs drop down to map 2.
Map 8: Methanol Injection map. Requires BMS FSB controller or methanol kit for progressive mapping and safety systems. For pump gas a meth additive of 30 is suggested while for race gas/E85 + meth up to a 75 additive can be used. The higher the meth additive the more aggressive the boost curve. A meth additive of 60 would be roughly equivalent to map 7.

[New435iguy]

Could you please explain why.
I was told that it will be same as map 1 but with higher octane will be better

[schnazzy]

My suggestion after reading all 30odd pages on the burger forum, plus other threads.
map 3 - 91+ octane no modes
map 1 - 91+ octane with downpipe
map 1 - 93+ octane with or without downpipe
map 2 - 93+ octane with downpipe

the reality is you should pick whatever map you fee comfortable with being in-charge of your own destiny. I'd put it on the dyno and watch the AFs and log the runs.

you may find that map2 with 91 and dps breaks up or the knock sensor takes over.

You are better off running the correct map without issues than go with a map you shouldn't use and have your performance be jittery at best.

The biggest issue is fuel/octane.

Just run map 1 as you have it now
When you want to run map 2, buy the 8oz torco (nothing else) and put a case in your trunk. Put a bottle in everytime you add gas. 8oz is good for +2 octane for every 10 gallons. A bottle is about $9.

[achi 3.0]

How can i get 100octane in europe for the map7? Do you have this in the usa at a gasstation or do you mix it?

[stranger]

Originally Posted by achi 3.0

How can i get 100octane in europe for the map7? Do you have this in the usa at a gasstation or do you mix it?

I've only seen this in German shell stations


Called race fuel