Page 2246 of 2249 FirstFirst ... 1246174621462196223622442245224622472248 ... LastLast
Results 22,451 to 22,460 of 22483

Thread: What did you do for your ZHP/ BMW / MINI today? #2

  1. #22451
    Join Date
    Nov 2013
    Location
    Bay Area
    Posts
    2,762
    Quote Originally Posted by DeathTrap View Post
    Lol I can feel the love!

    Thinking about DIYing a lithium pack for the ZHP. It'll be about 15 lbs when completed. I'm scared....

    Is it a track car...?


    2005 330 ZHP Imola Red - 1995 NA Miata
    2004 325 M56 Steel Blue Metallic - Sold
    Stephen's DD & AutoX/HPDE Build Thread
    Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
    DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap
    Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM


  2. #22452
    Quote Originally Posted by stephenkirsh View Post
    Is it a track car...?
    Tis a daily
    Quote Originally Posted by lucifer1
    You will notice quickly it is not a Honda. Welcome to BMW, for those who like working on cars just to keep it functioning.

  3. #22453
    Join Date
    Jan 1970
    Location
    Branford, CT
    Posts
    15,120
    What is the purpose of the battery packs?
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun



    It's not the car you drive, it's how you drive it.

  4. #22454
    Hopefully to replace the lead-acid lump in the back.

    It's a test run since I had a few of these laying around.

    A few benefits of running a Li-Ion pack:
    More reliable. The configuration that I'll be running them in allows them to pretty much rest at their nominal rated voltage (around 3.6-3.7 volts per cell). This reduces stress on the internals of the cells. They will never be discharged below 3.0V and can last almost indefinitely.

    Higher starting voltage. I have 4 of these in series. 4 times 3.7 = 14.8 which is roughly the alternator charging voltage. The battery will maintain that voltage level vs the lead acid which drops to about 12-13 volts.

    Less voltage drop during high-current delivery. Reduces work for the alternator since the Li-Ion pack has "stiffer" voltage.

    Less weight. Obvious benefits here.

    These are all theory of course, but hey it shouldn't hurt to try once or twice.
    Quote Originally Posted by lucifer1
    You will notice quickly it is not a Honda. Welcome to BMW, for those who like working on cars just to keep it functioning.

  5. #22455
    Join Date
    Dec 2016
    Location
    Greensboro, NC
    Posts
    2,947
    Quote Originally Posted by DeathTrap View Post

    These are all theory of course, but hey it shouldn't hurt to try once or twice.
    One of the rare circumstances where “bringing your work home” isn’t necessarily a bad thing lol.
    Emma - 2005 BMW 330ci ZHP 6MT Estorilblau Individual

    Sportline 8s 18x8.5F - 18x9.5R | APEX ARC-8 18x8.5 Square | aFe Intake | 135i Brembo F/R Calipers | 26mm Front/20mm Rear Sway Bars | Z4 Mirror
    M3 Dead Pedal | M3 Front Seats | Lexus ES300 Yellow Fog Light Retrofit | Koni Yellows/H&R Springs | Llumar CTX 40% | Coby Tri-Stitch Wheel & Boots

    Awaiting Install: M3 Wing Mirrors

  6. #22456
    Join Date
    Nov 2013
    Location
    Bay Area
    Posts
    2,762
    I guess you’re getting a good deal on the batteries?


    2005 330 ZHP Imola Red - 1995 NA Miata
    2004 325 M56 Steel Blue Metallic - Sold
    Stephen's DD & AutoX/HPDE Build Thread
    Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
    DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap
    Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM


  7. #22457
    Join Date
    Feb 2011
    Location
    Vancouver, Canada
    Posts
    3,280
    Can we expect some EV motor development and bigger batteries for our car next year?
    --Trevor--
    Vancouver, BC

  8. #22458
    Lol exactly. I consider it extra credit.

    Yeah I bought these dirt cheap from some old medical carts that were being scrapped.

    I'm already making plans for revision 2.0 using Nissan Leaf batteries. First I have to get these working.

    Some of today's cars use the alternator as mild hybrid motor. It's supposed to add an extra 50-100 ish ft-lbs to the low end. THAT would be nice for the daily grind.
    Quote Originally Posted by lucifer1
    You will notice quickly it is not a Honda. Welcome to BMW, for those who like working on cars just to keep it functioning.

  9. #22459
    Join Date
    Nov 2013
    Location
    Bay Area
    Posts
    2,762
    Quote Originally Posted by DeathTrap View Post

    Some of today's cars use the alternator as mild hybrid motor. It's supposed to add an extra 50-100 ish ft-lbs to the low end. THAT would be nice for the daily grind.
    Wait what? What car does that? 100 ft lbs...?!


    2005 330 ZHP Imola Red - 1995 NA Miata
    2004 325 M56 Steel Blue Metallic - Sold
    Stephen's DD & AutoX/HPDE Build Thread
    Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
    DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap
    Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM


  10. #22460
    These use "physics" to inflate the numbers, but torque at the crankshaft/wheels is what matters anyway.

    Dodge (alternator made by Magneti Marelli):
    "The two engine's eTorque systems are similar but different. For starters, the V-6's liquid-cooled eTorque motor is supplied by Continental and reverse-mounted on the front of the engine, adding length to the DOHC mill. The 5.7-liter Hemi's air-cooled electric helper is mounted on the top of the pushrod V-8, adding height, and it is supplied by Magneti Marelli. Output for the V-6's eTorque unit is 12 horsepower and 39 lb-ft, although the torque is multiplied by the belt drive to create a 90-lb-ft assist. The Hemi's eTorque motor is good for 16 horses and 49 lb-ft and, again, multiplied through a slightly different ratio for an assist of 130 lb-ft. Both systems use the same 48-volt, 0.4-kWh lithium-ion battery and DC-DC converter, which is used to charge and run the truck's 12-volt electrical system. The air-cooled battery doesn't impinge on interior space as it is mounted behind the rear seat."

    GM (This is nice, but the voltage is really high, almost house mains voltage):
    At the LA Auto Show, on November 15, 2010, General Motors announced that it would be releasing an all-new version of the BAS system available in the 2012 Buick LaCrosse.[8] While still a Belted Alternator Starter system, the system is named eAssist and includes a larger more powerful Hitachi-supplied[citation needed] 115 Volt Lithium Ion battery and a 105 kW (141 hp) motor-generator that delivers 279 lb⋅ft (378 N⋅m) of torque. The additional power provided by the more powerful battery and motor provides the ability to contribute more power, and more often able to electrically start and assist the 2.4L engine. The eAssist system also includes a specially modified GM 6T40 6-speed automatic FWD transaxle.[9][10]
    Quote Originally Posted by lucifer1
    You will notice quickly it is not a Honda. Welcome to BMW, for those who like working on cars just to keep it functioning.

Page 2246 of 2249 FirstFirst ... 1246174621462196223622442245224622472248 ... LastLast

Similar Threads

  1. Mini Meet and Shoot
    By M0nk3y in forum Everything Non ZHP (the place for non-ZHP photos)
    Replies: 11
    Last Post: 06-30-2011, 08:14 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •