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Default NIZPRO Update NEWS. - 05-18-2016, 07:21 PM

Hello Andrew:



Custom calibration is ultimately the best was of juggling the fastest shift speed vs transmission reliability. Because of this we have purchased our own 335 so we are able to calibrate transmission files to suit various power levels. We will then have a small library of tunes available for different power levels.



All going well we will be able to sell you a device that will hold a number of transmission calibrations that you will be able to load into your car yourself, so you will not need to send us anything. Of course if your transmission is mechanically worn this is out of our control and no tune will be able to help, we will also be limited even with a good condition transmission in stock form simply because a standard transmission can only do so much.



We hope to answers on the success of the programming unit within a few weeks or month.


















Regards



Simon Gischus

Director
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Default 05-18-2016, 07:25 PM

Hello Andrew



Valve body wise you do not under any circumstance modify them, this way of thinking is pre electronic valve body train of thought. Everything can now be done by the TCU.The beauty with having full TCU programming available is we can vary the torque limits of each gear change individually, along with speeding the shift times up and of course modifying both oncoming pressures and clamping pressures. Once you have increased frictions plates within the trans, the shift times can be decreased along with reducing torque limits on gear changes. In some cases with very high power, certain gear torque reduction have to be increased as a torque number of total engine torque over standard.



However I understand that many markets and it certainly seems that the US BMW owner fall into this category believe you can simply load email tunes into engines and transmission and all will be well. This certainly is not the case in our experience. If the basic engine or transmission is absolutely stock this is reasonably successful but as soon as they are modified forget it.



One of the reasons for this is the torque management of the transmission needs to be individually adjusted to suit the engines torque output.













For example our Level 3 HP26 with an engine output of 1400 hp we are able to have zero torque reduction in the first two upshifts { 1>2 and 2>3 } however in the 3>4 upshift we need to raise the reduction from minus 192 newton meters [ Factory } to minus 468 newton meters. Now when I hold training seminars this is one area for some reason guys have problems getting their heads around. The question that they quite often raise is, “ if you have built a stronger transmission why do you need to increase the torque limits by over double? ”



A factory Ford XR6 Turbo vehicle fitted with the HP26 produces 550 nm of torque, so on the 3>4 upshift the transmission needs a reduction of 192 nm to be able to apply the upshift reliably, the end torque number is 358 nm.



On our 1400 hp engines we have 1600 nm of torque however we need a 468 nm reduction to carry out this shift, giving us a end number of 1140 nm. This is a total torque number of 3 x above the factory rating however the torque reduction number is 2 x the factory reduction.



The problem with trying to do this with the Max Duration of Torque Reduction During Gear Shift within the BMW ECU is it appears to be time based and applied to all gears. If you reduce the number you end up with such a short duration almost no limiting occurs at all.



So you can quickly see why to get the best results of both performance and reliability, the two are a juggling act, individual calibration of each transmission is very important. Hence the reason we have purchased our own vehicle so we can offer various calibration based on individual customers power levels, that we will require directly from the customer.



Simon Gischus

Director



<Nizprologo[3].jpg>
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ms335i ms335i is offline
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Default 05-18-2016, 08:28 PM

Sweet. I can't wait. Keep us updated man.
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Default 05-19-2016, 07:21 AM

These guys are going to make a killing if they figure something out for us....


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Default 05-19-2016, 07:29 AM

I will ..Most of the cars run in the 9's..
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Default 05-19-2016, 08:07 AM

From NIZPRO to me RACE8877:

If you are posting on N54 please let people know that what we are trying to achieve is not a simply task hence why its not already available and that we are trying really hard to solve the issue’s both mechanically and electronically surrounding the performance limitation of the HP21. We have been able to do this with the HP26 in fact we achieved an 8:90 at 157.8 mph run in a 4200lbs car just last week, so I m confident we will be able to achieve a really good result from the 21, but we are not promising anything at this stage but simply updating customs on progress when they ask.
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Default 05-19-2016, 08:26 AM

Oh my. This would be such a game changer. I would sell my IS DCT and buy an AT for sure LOL.


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psychosinmylobby psychosinmylobby is offline
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Default 05-19-2016, 09:08 AM

This is absolutely great news! I was just contemplating swapping in a DCT + Dodson Clutch Packs just to handle higher HP.
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Default 05-19-2016, 09:28 AM

Wait and see who comes first with a solution for the AT . Here or anywhere else.
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ferocity02 ferocity02 is offline
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Default 05-19-2016, 09:50 AM

Hate to be pessimistic, but I'll believe this when I see it. Hopefully they aren't just flashing different OEM ZB numbers.

On a separate note, I completely disagree with their statement about not having to modify the valvebody. There are orifices that regulate the flow rate of fluid to the clutches. It is common practice to enlarge these to increase the flow rate and then dial in the shift firmness and speed electronically. I find it hard to believe that such modifications would not be necessary to get the most of a 6HP21.


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Default 05-19-2016, 10:19 AM

I agree , but better than nothing..Some hope....
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jeison33 jeison33 is offline
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Default 05-19-2016, 04:23 PM

This is great info . Cant wait for this tcu control gets figured out. That way i can really turn the boost up on my vff900 kit. Ill hold off on my manual tranny swap them. Imm guessing if this gets figure out. We can just upgrade clutches and trans pump along with tcu control will be able to hold almost twice the amount auto trans are holding before they start slipping. Numbers seem to be are 600 rwtq.
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Turbodreams954 Turbodreams954 is offline
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Default 05-20-2016, 07:06 AM

And I was just talking about selling the 335i because it seemed the auto solution was too far away, thank you!!
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RSTECH RSTECH is offline
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Default 05-21-2016, 09:29 AM

That car is moving 8.9.
I really hope they can get this done.


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Default 05-22-2016, 12:24 PM

Well Nizpro has bought a couple things from us recently, so it looks like they do in fact have a test car they are working on. We are in touch with them on this as well, as we have an AT car almost finished. I have faith they should be able to pull this off.


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Default 05-22-2016, 12:40 PM

Vargas TurboTech---Man I hope so...Time to see BMW in 9's...
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Default 05-24-2016, 02:29 PM

Here is the latest news from Nizpro website

http://www.nizpro.com.au/nizpro-news-may-2016/



.
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Default 05-24-2016, 02:34 PM

Quote:
Originally Posted by ZF 335i
Here is the latest news from Nizpro website

http://www.nizpro.com.au/nizpro-news-may-2016/



.
I haven't heard about a flat 10 second N54.
Have I missed an announcement?



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psychosinmylobby psychosinmylobby is offline
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Default 05-24-2016, 02:37 PM

Quote:
Originally Posted by Texsquirrel
I haven't heard about a flat 10 second N54.
Have I missed an announcement?
They are using their Ford falcon build as an example. Our cars don't weight 4200lbs
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marco_v_w marco_v_w is offline
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Default 05-24-2016, 03:11 PM

Great news!

Any idea if its also a option to let the gearbox hold the selected gear in M modus? So not auto shift up! This would be great.
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Default 05-24-2016, 03:27 PM

Exciting times for AT owners.
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Default 05-24-2016, 04:22 PM

From Nizpro Website


BMW Transmission upgrades

The BMW community are well aware that the transmission fitted to their 335 N54 powered vehicles is the smaller cousin to what is used in the Ford Falcon XR6 turbo range. We have been able to achieve amazing results from the ZF 6HP26, it is now capable of handling well over 1200 engine horse power with our latest hardware and software upgrades.

Unfortunately the BMW guys have not had the luxury of ongoing development to their ZF 6HP21’s. Suffering all the issues experienced by Turbo Ford Falcon owners back in 2006-2008 before Nizpro started development of what has now been proven as a fantastic transmission for high performance upgraded cars.

That being said, no matter what power levels have been achieved with the mighty twin turbo 3 litre BMW engine, acceleration times have always been off the pace for the given power and weight of the vehicles. There have been endless complaints by owners suffering with slipping transmissions and long gear changes, hence slow quarter mile times.

With our reputation growing due to the achievements of customers running Nizpro upgraded ZF transmissions, it was only a matter of time before we were asked to develop an upgrade package for the smaller 6HP21 for BMW owners.

Due to an already heavy workload, and a project that snowballed in size, it’s been nearly 2 years since we initially undertook the 6HP21 development. Most of the development for the 6HP21 was simply carried over from the 6HP26, but still required all our tooling and jigs to be reproduced due to the different size of all the components. On an upside for 6HP26 owners, some extra developments needed for a successful 6HP21 were now carried back to 6HP26.

After 8 years experience with the 6HP26, the mechanical upgrades needed for the 6HP21 were not groundbreaking as far as we were concerned, however a massive problem was the transmission software calibration, or lack of to be precise.

Transmission power handling capabilities and performance can be divided into two almost equally important categories:

The upgrading of internals to allow for extra torque requirements.
The software calibrations allowing for adjustment of torque management, shift speeds and transmission pressures.

One without the other gives a 50% result at best.

Now, many said re-calibrating the ZF via the BMW OBD2 port along with locating the calibration tables required for transmission control could not be possible. We at Nizpro are very excited to say that we have now been able to achieve this goal. It is now possible to read existing calibration, and also write new calibrations. New calibrations can be flashed directly to the ZF TCU via the OBD2 port.

The next development period will see us concentrating on custom calibration for use with both the standard ZF 6-HP21, and our upgraded transmissions. We will have hardware and software calibrations that can be purchased directly from us, and then loaded into the vehicle by their owners.

So what does this mean regarding performance gains for N54 owners?

Here’s the bit that most of you will love, these are real world measurements of transmission improvement:

As a proven example, one of our Level 2 internally upgraded 6HP26 transmissions using standard calibration will be 2 tenths faster over the ¼ mile compared to a good condition standard transmission.
Take the same Level 2 upgraded 6HP26, add a recalibrated file and you will see a further reductions of 4 tenths.
Now, if you were to put the same recalibrated file into the stock transmission the input shaft would likely fail before the end of the first pass.

These numbers are based off proven results on a flat 10 second 4200 lbs vehicle. To be clear, the recalibrated and upgraded transmission will take a flat 10 second time slip down to 9:40 or better. After purchasing our own test BMW 335I, and performing mild upgrades to lift power to 300 rwkws, we see that the standard shift speeds are far slower than any standard Ford XR6 Turbo fitted with a ZF transmission running a standard calibration. I would say that the improvements of the BMW will prove greater than the above examples.

I look forward to providing more information and results as they come to hand.

Regards Simon
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