[RiXst3r]

+1

And yes, its far more complex... designed and programmed from the ground up for the n54 by Terry and his crew

Originally Posted by ArmyBimmerDude

Come on guys. Don't ruin this thread with yet another war of words.

When it comes out, we'll see what it can really do, if there are any issues, etc.

Am I correct in saying its far more complex than the JB's out there right now?

[RiXst3r]

SIGN UP HERE: http://www.rixeffects.com/store/jb3
to be notified when the JB3 goes on sale. Your e-mail address will be kept private.

[kitw]

Originally Posted by RiXst3r

Terry has purchased a v81 car for testing, so we should be seeing dynos soon. He will have a v80 pre-29.2 335 and a v81 135 for development. No need to test on customer cars...

-Rick

I doubt 2 cars will be close to enough to approximate the various configurations others have. After seeing Shiv and my cars on the dyno at the same time, the boost curves are drastically different, even though they are fairly similar. (shiv has exhaust and downpipes over mine)

It's one thing to make a car make good WOT power on the dyno, but a whole different ballgame to make that car feel "stockish" at part throttle driving around at a normal rate of speed. Making cars exactly like Terry's perform well is easy, but change a few parts and it is very difficult. A v81 135i with a stock catback, for example, is way more restrictive up top than a v81 335i with a stock exhaust. This makes you run more wastegate duty cycle to get to a given boost target on the smaller car.

The JB2 is very simple and won't require the same kind of testing that a fully PID controlled boost control system will, especially to get part throttle driveability to an acceptable state.

[RiXst3r]

Originally Posted by kitw

I doubt 2 cars will be close to enough to approximate the various configurations others have. After seeing Shiv and my cars on the dyno at the same time, the boost curves are drastically different, even though they are fairly similar. (shiv has exhaust and downpipes over mine)

It's one thing to make a car make good WOT power on the dyno, but a whole different ballgame to make that car feel "stockish" at part throttle driving around at a normal rate of speed. Making cars exactly like Terry's perform well is easy, but change a few parts and it is very difficult. A v81 135i with a stock catback, for example, is way more restrictive up top than a v81 335i with a stock exhaust. This makes you run more wastegate duty cycle to get to a given boost target on the smaller car.

The JB2 is very simple and won't require the same kind of testing that a fully PID controlled boost control system will, especially to get part throttle driveability to an acceptable state.

Totally agree... which is why the JB3 will utilize the factory boost control logic. He also has a large group of beta testers, me included... to test in different conditions and with different levels of mods.

In the post you quoted, I was talking about testing v81 maps... its good to have a v81 car in your driveway to test on as you develop new methods.

-Rick

[kitw]

Originally Posted by RiXst3r

Totally agree... which is why the JB3 will utilize the factory boost control logic. He also has a large group of beta testers, me included... to test in different conditions and with different levels of mods.

In the post you quoted, I was talking about testing v81 maps...

-Rick

i grokked what you're saying.

But no, I hope the JB3 doesn't use factory boost logic, unless you like large (20%) boost spikes! the factory system allows a 1.5-2psi overboost from 6psi, scale that up to 14, and you get a fairly large allowable error (which is why the factory boost logic ain't working with the wick turned up)

[RiXst3r]

Originally Posted by kitw

i grokked what you're saying.

But no, I hope the JB3 doesn't use factory boost logic, unless you like large (20%) boost spikes! the factory system allows a 1.5-2psi overboost from 6psi, scale that up to 14, and you get a fairly large allowable error (which is why the factory boost logic ain't working with the wick turned up)

OK, maybe logic was the wrong word... I am not a tuner
But as far as I know, he is "modifying" the boost control system, rather than trying to recreate it.

[lawdude]

Might be better, rather than having the answers filtered through a reseller, to go over to Terry's site and ask him.

[RiXst3r]

Originally Posted by lawdude

Might be better, rather than having the answers filtered through a reseller, to go over to Terry's site and ask him.

From terry...

A little info on the boost logic..

The factory system does a very good job of boost control at factory
levels. JB3 goes in between the factory PID system and the solenoids
to alter the signal under certain circumstances. Like before a spike
is going to take place. One way of looking at it is tuning the
proportional gain without abandoning the otherwise great factory
algorithms.

[RiXst3r]

If you guys want to be notified when official results and dates are released, sign up here:
http://www.rixeffects.com/store/jb3

The info will be posted in this thread as well.

[RiXst3r]

Hey guys, here are pictures of our prototype pinout harness and prototype PNP harness. We are still working out the details on netting, shrink wrap, or tape, but you get the general idea.

On the PNP those four connections are all the JB3 requires. Power, ground, etc, all come through them.

THERE ARE NO SEPERATE POWER OR GROUND WIRES TO TAP.... ALL TOTALLY PNP!!

We are still toying around with map switch options so those aren't shown...but they plug in to the black DB25 connector as well.

[san~man]

Originally Posted by RiXst3r

Hey guys, here are pictures of our prototype pinout harness and prototype PNP harness. We are still working out the details on netting, shrink wrap, or tape, but you get the general idea.

On the PNP those four connections are all the JB3 requires. Power, ground, etc, all come through them.

That looks promising. Pure PNP.

[McLuVan]

ZOMG!

[Mike07335i]

Wow.. Thats nice and small, and looks like a breeze to install. Great job guys

Mike

[V1.47fan]

Wow! I want one.

[chinoxs203]

invincibility!

[j|rz44]

Terry is a Shiv parasite! But he offers good products...

Fact.


GJ.

[roozie2001]

any updates? info?

[RiXst3r]

Originally Posted by roozie2001

any updates? info?

Well, I do know that there will only be 40 pnp units in the first batch... so if anyone wants in on that, your best bet would be to sign up to be notified, and checkout from my store as fast as possible. The next batch could be a while after that, because of a shortage of the pins for the pnp harness.

www.rixeffects.com/store/jb3

[jdink]

Rix, this was just asked in another thread....

Will Terry be supporting/providing map updates for the jb3? If so, how will these take place? Will users be able to download and upgrade themselves? Or will they have to send their unit in?

[RiXst3r]

Originally Posted by jdink

Rix, this was just asked in another thread....

Will Terry be supporting/providing map updates for the jb3? If so, how will these take place? Will users be able to download and upgrade themselves? Or will they have to send their unit in?

terry will distribute them as inexpensive tiny removable chips that insert into the JB3... all of this is designed to keep costs down, and keep things simple to remove the possibility of user error.

One of the reasons the jb3 isn't for sale yet is because he wants to make sure the maps are "as good as they get"... rather than needing to release map fixes every few weeks to address problems.

[scottp999]

The product looks promising, but I would urge everyone with any type of tune to get an external boost gauge hooked up to verify you are not overboosting.

[jdink]

Originally Posted by RiXst3r

terry will distribute them as inexpensive tiny removable chips that insert into the JB3... all of this is designed to keep costs down, and keep things simple to remove the possibility of user error.

One of the reasons the jb3 isn't for sale yet is because he wants to make sure the maps are "as good as they get"... rather than needing to release map fixes every few weeks to address problems.

with ever changing updates from BMW's end, is there really a "as good as they get" map?