Propulsive Dynamics Closer to Launching Mass Production of 6HP21/19 Upgrade

Discussion in 'N54' started by [email protected], Nov 11, 2016.

Trader History (0)
  1. Propulsive Dynamics, LLC is happy to announce that we will soon be offering a complete drop-in solution for the 6HP21/19 transmissions that are currently found in N54/N55 powered vehicles. It is preferred that the customer send in their stock unit for rebuild, however, sending a salvaged donor unit is also possible. We also strongly advise that the end user utilize an ATF cooler to aide in heat management of the system.

    The fully built transmissions offered by Propulsive Dynamics feature the following…

    - Upgraded G3 Friction Material frictions (technical info brochure attached)

    - Upgraded Kolene steels (technical info brochure attached)

    - Increased clutch plate counts

    - Upgraded Race Bushings throughout

    - ZF Complete Overhaul Kit

    - Fully rebuilt and upgraded valve-body

    - Fully rebuilt and upgraded torque converter (stock stall, currently)

    - Each finished unit is fully calibrated on a loaded transmission dyno cell

    - Each unit is shipped with a calibration data packet which also includes the adaptation procedure

    Propulsive Dynamics, LLC has formed an exclusive partnership with European Transmissions. They will be performing the rebuilds and dyno calibration of all of our units. They are a BMW certified transmission refurbishment facility for BMW USA.

    The calibration procedure includes increasing line pressures in each clutch drum, increased flow through the ATF pump, adjustments to slip durations to compensate for the increased friction coefficient and adjustments to the adaptation parameters themselves in order for the system to learn within its new boundaries. We are rating the performance increase at ~30% over the known capacity limit of the stock configuration with increased spectrum of usage and margin of safety.

    We currently have 4 beta units in the field and the owners are all reporting extremely positive results. More quantifiable data will begin to flow in after this weekend and I am encouraging them to post any and all feedback. Some of the feedback reported thus far has been…

    - Faster, sportier shifts

    - Firmer, more deliberate shifts

    - OEM-lke shifts during daily driving

    - Increased shift points (7100 RPMs reported) at WOT

    We plan to launch a 15 spot group-buy at the conclusion of beta testing which, hopefully, won’t be too much longer. Early interest in the group-buy can be expressed in this thread. Group-buy pricing will be $4,500.

    Any updates will also be posted in this thread.

    EDIT for Group-Buy info:

    "Jason, out of curiosity, do you have any idea on how the group buy will roll out? Deposits? Delivery windows? Deposit refund policy? Etc."

    Excellent question. Currently, our thinking is that after we get 15 people signed up, we would ask for 50% down to start manufacturing the clutches and bushings. Upon completion of the manufacturing phase, currently estimated to be in the 2 week domain, we would then ask for the remaining 50% and for the customer to send us their transmission for upgrade.

    After we receive the customer's transmission, turnaround time is estimated to be 4 days based on what we experienced with building the 5 previous units. The rebuild process looks like this...

    - Disassembly
    - Deep cleaning
    - Complete inspection
    - Reassemble with upgrades
    - Dyno calibration
    - Ship

    Group-Buy List:
    1) nitemare
    2) 08_335i
    3) doublespaces
    4) braddman
    5) wtfmarine
    6) obed figureroa
    7)
    8)
    9)
    10)
    11)
    12)
    13)
    14)
    15)
    16)
    17)
    18)
    19)
    20)

    Here's a pic of the loaded trans dyno cell we use...
    shopdyno.jpg


    Here's a pic of a customer's transmission right before install...
    Customer trans photo.jpeg
     

    Attached Files:

    Last edited: Dec 8, 2016
    • Like Like x 1
    • Winner Winner x 1
    • Informative Informative x 1
    • Useful Useful x 1
    • List
  2. What's the price range on this?
     
  3. Need anymore beta testers?
     
  4. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    You may as well start the group buy interest list if you're serious.
     
  5. Group-buy pricing will be $4500 per unit. OP has been updated.
     
  6. Unfortunately, all beta units have been gone for quite some time now.
     
  7. 08_335i

    08_335i Sergeant

    254
    2008 ST 335i
    Ah, there he is.
     
    • Like Like x 1
    • Agree Agree x 1
    • List
  8. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    He tried to avoid us, but we're too awesome.

    EDIT: It might be since he was tired of me calling :)
     
  9. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Jason, out of curiosity, do you have any idea on how the group buy will roll out? Deposits? Delivery windows? Deposit refund policy? Etc.
     
  10. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Here are the two PDF attachments in JPG form:

    ZF6HP19-21 High Performance Friction Brochure Rev2-page-001.jpg ZF6HP19-21 High Performance Kolene Steels Brochure-page-001.jpg
     
  11. @[email protected] so the $4500 would be from us sending you a core and you building it for us, correct? And would this include the software upgrade as well or is this just a hardware upgrade for the trans?
     
  12. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
     
  13. Excellent question. Currently, our thinking is that after we get 15 people signed up, we would ask for 50% down to start manufacturing the clutches and bushings. Upon completion of the manufacturing phase, currently estimated to be in the 2 week domain, we would then ask for the remaining 50% and for the customer to send us their transmission for upgrade.

    After we receive the customer's transmission, turnaround time is estimated to be 4 days based on what we experienced with building the 5 previous units. The rebuild process looks like this...

    - Disassembly
    - Deep cleaning
    - Complete inspection
    - Reassemble with upgrades
    - Dyno calibration
    - Ship
     
  14. I'd like to add that after the transmission has been built and dyno calibrated by us, there will never be a need to fine tune it. This transmission behaves as it would if BMW had purpose-built a 700whp transmission at the factory. Also, several of the assembly process are automated which adds accuracy, repeatably and increased quality.
     
    • Informative Informative x 1
    • List
  15. V8bait

    V8bait Corporal

    Looking forward to the real world results. Not so sure about the choice of axis on a few of these graphs exaggerating the delta but any upgrade is desperately needed.
     
  16. Are you referring to the EM Ratio graph?
     
  17. V8bait

    V8bait Corporal

    Mostly yes. Understandably you're highlighting the data but it looks like a tight margin there.
     
  18. My apologies. It was not intended to skew or exaggerate the interpretation of the data, only show that it was slightly better than stock. Our target was to at least match it, which is a pretty huge feat considering the 17% increase in dynamic coefficient, so we were pretty happy the results showed a slight improvement. However, I agree it does looks a bit strange. The good news is, this is the most documented data point so far that directly correlates back to this graph. The first thing all of my betas reported was the improvement in shift quality.
     
  19. V8bait

    V8bait Corporal

    That's reassuring, 2017 may finally be the year the autotragic becomes more 'matic. With any luck potential will start matching ET's at the track; we need to beat 'stralia and make America great again!
     
  20. doublespaces

    doublespaces Administrator

    AZ
    2009 E93 335i
    Straya, get it right :)
     
    • Like Like x 1
    • Agree Agree x 1
    • List

Share This Page