[Mike07335i]

Just curious. how many wires/pins will be intercepted by the JB3. Just thinking how complicated the professional/non PnP version will be to install.

Mike

[e90AW335i]

Originally Posted by Mike07335i

Just curious. how many wires/pins will be intercepted by the JB3. Just thinking how complicated the professional/non PnP version will be to install.

Mike

11 pins. The pin-out version wont be any harder than other pin-out tunes out there right now (Helix, AA, etc)

[tomtom]

any updates on JB3?
still expected to be released late August?

[RiXst3r]

Originally Posted by tomtom

any updates on JB3?
still expected to be released late August?

Yep, terry has been testing on his new v81 135 full time now to make sure everything is safe for the new ECU's and newest progmans...

Here is some info and photos:

Originally Posted by Terry Burger
Just spent a few hours on v81 mapping with our 135.

The good news is the boost/solenoid control system works perfectly and there is no throttle closure, codes, or lag. We are also well below the tuner detection limit on fuel enrichment. It feels really smooth and fast! I can't wait to get going on the v81 race map!

The bad news is it appears the v81 does have wideband sensor impedance checking, forcing the stock air/fuel ratios. Not a big deal for performance since we're able to read/alter quite a bit more parameters than we could with the JB2 (rpm/cps, iat, tps, solenoids, fp, etc), but it puts a damper on our lean cruise plans.

It is also causing me to ponder whether we should use the stock air/fuel ratios for our pre 29.2/v81 tune as well. That would allow us to drop the small black connector off the wiring harness making for an even easier install and lower price. And if I could find an alternative to the TPS sensor on one of the left two connectors we could drop the gray sub connector too! Did I mention I strive for simplicity?

[dr.roro]

So very clean and nice looking, but it's too bad about the "lean cruise mode." Keep the updates coming!

[RiXst3r]

Hey guys, time for an update!

There are a handful of JB3s in the field now testing our daily driver map. Boost is set to around 12psi down low, 13.75-14psi @ 5500rpm, tapering to around 10psi before the shift. Under more ideal cooler temperatures or better intake/exhaust/IC boost is preserved. The factory tune, JBX, and a variety of other tunes would drop boost under these conditions. Under hotter temps or less efficent combos with the stock intake/exhaust/IC boost drops a bit instead of skyrocketing like the stock tune or JBX would. Overall the tuning is setup to dynamically match the modifications and current conditions. Probably not going to make for the best dyno results but on the road it works very well. Maybe we'll make a dyno glory map for those that are interested... :lol

Anyway I have asked them not to post anything so if you see any JB3 beta test posts you have the green light to take the poster out...

The biggest hold ups in production is sourcing pins for the PNP harnesses, and the immense amount of labor required to build each harness. To help speed up the latter BMS has purchased a nifty new machine. Should be here in a week or two! Check it out in action. This should shave an hour off the three hour process.

Also attached is a photo of our JB3 test rig. The breadboard is setup to simulate the relevant parameters (boost, rpm, fuel pressure, etc), and then the meters are setup to ensure everything is working as it should. You can also see the harness tester.

[lawdude]

Those look like the multimeters that Harbor Freight runs on special for $2.98 a pop. BMS is sparing no expense.

[hotrod182]

Originally Posted by lawdude

Those look like the multimeters that Harbor Freight runs on special for $2.98 a pop. BMS is sparing no expense.

And thats how savings can be passed on to the customer. Just about any DVOM will have sufficient accuracy for this kind of work. If you want to pay a company to own the most expensive equipment, (and high overhead) then you will probably pay for it in the purchase price of the end product.

[jcarlucci1]

Originally Posted by RiXst3r

Hey guys, time for an update!

There are a handful of JB3s in the field now testing our daily driver map. Boost is set to around 12psi down low, 13.75-14psi @ 5500rpm, tapering to around 10psi before the shift.

Are those boost numbers on the 91 or 93 tune?

[RiXst3r]

Originally Posted by lawdude

Those look like the multimeters that Harbor Freight runs on special for $2.98 a pop. BMS is sparing no expense.

...

Originally Posted by Terry Burger

:lol Good eye! I prefer not to permanent marker the good multimeters.

PS. You can buy around 120 of those Harbor Freight meters for the price of the scope...

[RiXst3r]

Originally Posted by jcarlucci1

Are those boost numbers on the 91 or 93 tune?

Originally Posted by got psi

+1

Those boost numbers are running on 91 octane, its still just the preliminary mapping... changes may come after beta testing

Originally Posted by Terry Burger

Yeah I tend to be conservative on boost, but we'll have a race gas map for those that want to get really aggressive. 95% of my customer base is looking for something safe, fast, smooth, and invisible to BMW. So that is where my priorities are at the moment.

Actually the way we setup the IAT decay is really cool, as temps rise up you actually get more high end taper. We found decent compressor map data to put it all together...

[tomtom]

JB3 sounds great so far...can't wait for preliminary data to roll out!

[AlpineG05]

91 octane I believe

[RiXst3r]

*** 7/8 EDIT Beta testing on the "high boost" map in progress! This map is suitable for all premium brand 91 octane grade and higher fuels. Peak boost is set to 14psi @ 5500rpm when the conditions are right (e.g. 60 degrees ambient), or as low as 11.5psi @ 5500rpm under extremely poor conditions (e.g. 120 degrees ambient). Low end boost is set to around 12psi, and high end boost tapers to around 10psi before redline. Plan to do some before and after dyno testing on our 100% stock v81 135i auto next week. If time permits may also do a couple pulls with our intake.

Also had a chance to crunch the numbers and finalize pricing. Price will be $779 for the plug and play version, and $579 for the professional (pin out) version. We are working hard to build up stock on plug and play harnesses but there will likely be a large shortage upon release. Those that opt for the pin out harness initially can easily add the plug and play connectors when they are available.

[Viper]

"Lean-cruise mode, for those of you looking for maximum fuel economy on your private roads. Ideally selectable via the map switch. BMS is also toying around with the idea of nerfing boost on this map to 2-3 psi, so your 335 feels like a 328. Perfect for when your "buddy" needs to borrow it."

circa, what psi would the engine be running at on lean-cruise mode? and if you guys could actually almost turn off the boost, then this would be the BEST tune in the world! please tell me these two options will be available on the JB3!!!

[darkphantom]

do we have any ballpark numbers yet, running with 91-93 oct?

[Sam12345]

doesnt seem like its going to be much faster then a JB2X, but just many more features to be adjusted i suppose.
am i correct?

[RiXst3r]

Originally Posted by Sam12345

doesnt seem like its going to be much faster then a JB2X, but just many more features to be adjusted i suppose.
am i correct?

It will have more power, especialy on pump gas.

With the jbx, we were limiting power for the worst case scenarios, now that we monitor AIT, CPS, etc, we can be more dynamic with the power increase

[AlpineG05]

jb3 will have a great low end and top end right? I remember reading something that terry wrote along those lines.

[darkphantom]

Originally Posted by RiXst3r

It will have more power, especialy on pump gas.

With the jbx, we were limiting power for the worst case scenarios, now that we monitor AIT, CPS, etc, we can be more dynamic with the power increase

Not to stir up controversy, but rather compare the competition, can you give us an insight on how this will compare with the V3 and it's features?

[RiXst3r]

Originally Posted by darkphantom

Not to stir up controversy, but rather compare the competition, can you give us an insight on how this will compare with the V3 and it's features?

It would really only serve to start a flame war. I can say the JB3 is positioned to be a great upgrade over the JB2 and will hold up very well against any other product out there. Not to mention the price point and customer service are unbeatable.

With the recent turbo failure scares BMS has done a lot of homework and developed an algorithm to approximate impeller speed and adjust boost up and down dynamically to stay within certain limits. They have also gone to lengths to ensure the system is invisible to BMW. They were the first (and only) to post the BMW diagnostic screen shots and discuss the various detection issues in great detail.

The street map is set to around 14psi with a dynamic taper so power should be strong, similar to a JB2R under ideal conditions on pump gas. With smoother performance and a much easier plug and play install. They have a variety of other neat maps in the works, and since the unit is easily updated BMS will continue to offer new maps as R&D goes on.

[darkphantom]

thanks alot for that info! looking forward to it!