JB4 - Map 5 Dyno Testing

[Reach]

Originally Posted by F30MSport

Sorry if you covered this but what are your mods? Can map 5 be run without any other supporting mods (ie. downpipe). Thanks for posting this thread made me just decide to go JB4 over Stage 1...

The only "supporting mod" is MaximumPSI intakes, and they are not necessary to get these results. This is all in the first post. My testing of the intakes vs. stock showed they outflowed stock in lower and mid RPMs, but both flowed equally (as seen through the MAF) in the upper RPMs. That's another thread for another time.

So yes, you can run just a JB4 on map 5 with good 93 octane and likely get these results.

[JTO24]

I just installed my JB4 the other day and was playing around with Map 2 and Map 5. On stock PSSs map 2 is basically useless lol even at 40 mph in 2nd, I just spun. The torque, if you can get it down, is immense, tho!

Map 5 was much more usable, and because of this, enjoyable. I loved revving my e92 m3 out and this map makes you want to do the same. I need to do some logs to make sure everything is healthy (93 octane, stock DPs) but so far I'm enjoying the JB4.

[brad850csi]

I'm keen to see someone do map 5 with pure turbos and 93 octane Could be a good way to get a lot of power and the (near) standard torque in the mid range won't require a replacement clutch

[EBM4]

Originally Posted by Reach

This last week I was able to secure some dyno time to test the latest JB4 firmware (v1_57) in a variety of maps, gears, and situations. One of the things I was most curious about was Map 5. Map 5 has been called the "///M map", the "low torque" map, the "linear map" and a number of other things, but I haven't seen much data on it. What I have seen is that it limits low end torque while preserving a smooth torque increase for a more linear power response, and possibly even greater top end than available in other JB4 maps. I wanted to know how my car would respond, as I thought this map might be the best map to do spirited track day driving in.

The results were fantastic, both compared to bone stock and other maps. First, the car is a 2016 F80. The fuel is standard pump 93 octane. No higher ethanol blends or methanol injection. The dyno pulls were conducted in 4th gear except where noted. The only hardware mods on the car are front mount intakes from MaximumPSI and solid charge pipes from RK-Tunes.



I had these dynos performed on a Dynojet 224x at Bimmer Performance Center in Raleigh, North Carolina.

First, a look at Map 5 vs. stock baseline:


This shows clearly what Map 5 is doing over a stock car. The added torque between 3500 and 5500 gives the car a noticeable increase in pulling power, while delivering predicable straight-line increases in power without any big spikes. From 5500 to 7500 the car continues to make more power, developing about an additional 25hp during that range, whereas the stock mapping stays flat. There are peak power gains well over 40hp, with a gap that large developing and staying consistent from about 5500 to redline.

I did multiple pulls, in 4th and 5th gear. Although 5th gear posts higher peak #s, the curves are similar, and 5th gear pulls tended to be a little rougher in the detailed data, as the car spent more time at the edge of fueling capacity. There was more variance in the higher RPMs if you turn down the smoothing. Here are multiple Map 5 pulls, with the green line being done in 5th gear:

Now, let's look at Map 5 vs Map 1, and Map 5 vs Map 2. In each of the below graphs, Map 5 is in red:



Map 2 is a torque monster. There's no way around it, if you have to kill something from a roll, this is your map, you just better have the tires to put down the power. However, track drivers often prefer the more consistent power delivery seen in Map 5. The great thing about the JB4 is it offers you both, and with the Connect Kit changing between them is as easy as a menu selection from your phone.

Great looking motor any idea what color was used for the Charge Pipes and the intake powder coating?

Thx

[RSXDC5]

Update:

After driving around quite a bit in Map2 and Map5, I have decided I get more enjoyment out of the car using Map5.

My reasons are: much better top end power (by a significant amount) with my E30 blend, I basically have traction now in second gear making my acceleration forces felt greater within 2nd gear.

Even though I am losing torque vs Map2 in the low end, the car is still fast as hell and now I look forward to revving it in the higher RPM's more...much more!

[JoeyBananas]

Cliffs notes please.

Which Map would produce a higher MPH in the 1/4 mile (or would pull from a highway roll)?

[FC4]

Originally Posted by JoeyBananas

Cliffs notes please.

Which Map would produce a higher MPH in the 1/4 mile (or would pull from a highway roll)?

Map 5.

[shay2nak]

Out of all the tunes I've seen so far, Map 5 is the one I'd get.

I thought I read one of the posts that Map 5 is only for 93oct? Living in CA, we only have 91.

[Reach]

Originally Posted by shay2nak

I thought I read one of the posts that Map 5 is only for 93oct? Living in CA, we only have 91.

Sadly you are correct. If you've only got 91, I'd stick with Map 1.

[shay2nak]

Originally Posted by Reach

Sadly you are correct. If you've only got 91, I'd stick with Map 1.

Does it really make that much difference if you run 91? I'd think the ECU would adjust slightly. ...Unless I do a half-ass mix at a gas station with 100. There's a 76 close to my house that sells 100.

[Reach]

Originally Posted by shay2nak

Does it really make that much difference if you run 91?

Yep. Go ahead and try it, run JB4 logs and post them and we can discuss the results.

[RSXDC5]

Shay2nak, do you have access to E85? It makes SUCH a difference

[johnerod75]

I just added 4 gallons E85 with 93 octane today. It's my first time trying it out. I am on Map 2. Is it still ok to run on map 5? I haven't tried it yet. Map 2 has so much torque it's so hard to keep the power down. I have used map 5 before and I liked how it felt. Lets you get that power down early and so much more top end power! I want to try it with this E85 mix but I'm not sure if it's not the right map for it.

[CaryTheLabelGuy]

Originally Posted by johnerod75

I just added 4 gallons E85 with 93 octane today. It's my first time trying it out. I am on Map 2. Is it still ok to run on map 5? I haven't tried it yet. Map 2 has so much torque it's so hard to keep the power down. I have used map 5 before and I liked how it felt. Lets you get that power down early and so much more top end power! I want to try it with this E85 mix but I'm not sure if it's not the right map for it.

An E30 mix is always better than just 93 alone, regardless of map you run.

At 4 gals of E85 and the rest 93 octane(w/ 10% ethanol), you're looking at around 96 total octane and a total ethanol content of about 29% (E29).

I ran an E34 mix (5 gals E85 mixed with 93 (10% ethanol)) or about 97 total octane daily on my first M4. I plan on doing the same on my new ZCP once I get the JB4 installed and will likely run a revised Map 2/5.

Map 5 and stock ZCP tuning look really similar on the dynos that I've seen, at least on pump gas and especially on the top-end of the rev range.

[johnerod75]

Originally Posted by CaryTheLabelGuy

An E30 mix is always better than just 93 alone, regardless of map you run.

At 4 gals of E85 and the rest 93 octane(w/ 10% ethanol), you're looking at around 96 total octane and a total ethanol content of about 29% (E29).

I ran an E34 mix (5 gals E85 mixed with 93 (10% ethanol)) or about 97 total octane daily on my first M4. I plan on doing the same on my new ZCP once I get the JB4 installed and will likely run Map 2/5 just like before.

Thanks. I will try map 5 out. See how it feels.

[JoeyBananas]

Not to get too off topic but I live right next to ATCO raceway which sells all kinds of Race gas. What would be ideal for MAP7 MS109?. I plan on adding a gallon or two for every fill up as well with MAP2

[Lojs]

Anyone tried map 5 with upgraded turbos yet? pure?
I am really interested in improving top-end torque post 5k rpm and not under it like maps 1-2-7 do. Want to go fast when revving, but save the DCT and retain low end traction.

[Lojs]

Lets give this a bump.
Any more feedback of map 5 on dynos / drag strips?

[shay2nak]

Originally Posted by RSXDC5

Shay2nak, do you have access to E85? It makes SUCH a difference

Not sure, never looked. I haven't noticed anything in my area. I may know someone that's aware of a station in Ventura/Oxnard.

[F80R]

Being reading this for a while Curious to see if anybody took their car to 1/4mile or Roll even on map 5 or had direct race compare vs map 2. All this Torque map 2 makes is hard to believe that map 5 will be faster then map 2 even from a roll.

[DS_BMW]

Does map 5 lose any power under 3k rpm compared to stock?

[Kharlanov]

Dunno v stock but it does feel slower overall to me