Attempting to SMASH through the 75km/h barrier!!!!

This topic has 30 replies, 10 voices, and was last updated 20 years, 3 months ago by jamiekulhanek.

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- December 29, 2003 at 7:40 pm #11979
  jamiekulhanek
  Participant
  Posts: 2563
  I am soon to order a few parts to make my mini Z (hopefully) reach 75km/h.
  
  I have stripped the wires, used heavier gauge wiring, fitted RC Deans Low resistance connectors to the battery packs, speed controller and motor , soldered up some battery packs to reduce resistance.
  
  Other fast bits:
  -5 cells
  -Tamiya plasma Dash with BB s and Neodymium magnets (good for about 50w @ 150,000 RPM). (0.05kW)
- January 2, 2004 at 1:27 am #49109
  z-beam
  Participant
  Posts: 2265
  jamie. do you have a rear assembly i could purchase off you? i need a new motor housing bad!!! good luck with bustin the mini-z limits.
- January 2, 2004 at 6:15 am #49112
  Pork_Hunt
  Participant
  Posts: 349
  Good lord man, that is awesome.
- January 2, 2004 at 7:27 am #49115
  ph2t
  Participant
  Posts: 2088
  get some video dude, please please please!
- January 2, 2004 at 5:46 pm #49120
  jamiekulhanek
  Participant
  Posts: 2563
  Sadly, i dont have a digital video camera, just a Hi8, but i guess i could feed it through the video in port on the PC. Then send a few of u guys the video n a cd…
  
  Its gonna be a while to get the stuff from HK, might go the express international post….expensive…but worth it.
  
  Z beam, nah mate i dont have any spare chassis parts.
- January 21, 2004 at 8:16 pm #49272
  mocky
  Participant
  Posts: 239
  parts eh,ive been meaning to go back to Hk and visit the rcmart.com place.Heard they offer discounts for appointments.
- January 21, 2004 at 9:32 pm #49274
  dgs73
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  Posts: 2179
  Getting outta control Jamie…:smiley2:
- January 27, 2004 at 7:54 pm #49333
  jamiekulhanek
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  Posts: 2563
  No way man, Im already looking at 100 km/h, but thats a bit further down the track…
- January 28, 2004 at 2:22 am #49349
  trash
  Participant
  Posts: 651
  ….. I’m picturing the scene in the car park from “back to the future”….
  
  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  
  Have you got a flux capacitor installed in your Z yet ?
- January 28, 2004 at 8:04 am #49362
  PandaBear
  Participant
  Posts: 1866
  I hope we’re talking real life (not scale) performance on an actual straight road, and not just on a dinky MiniYon speedchecker… :blush:
- February 3, 2004 at 7:01 am #49422
  jamiekulhanek
  Participant
  Posts: 2563
  Trash im unsure what to use as a capacitor, i hate piling on weight into my machine.
  
  I was looking at 1 farad 5.5v super capacitors but they have been discontinued by dick smith.
- February 3, 2004 at 12:20 pm #49424
  Aaron
  Keymaster
  Posts: 2146
  Jamie if you get a model number etc or manufacturer ID of any parts let me know and I’ll do a search through ausmicro.com suppliers. We can always whack one or two in with a FET order….
  
  🙂
  
  A.
  
  --
  Site Owner Guy.
- February 3, 2004 at 2:09 pm #49425
  ph2t
  Participant
  Posts: 2088
  hey aaron, see what price you can get for IRLML2502 They are the fets used in the bcg mosfet mod. A cheap(er) source would be great.
  
  cheers,
  
  ph2t.
- February 3, 2004 at 11:51 pm #49434
  jamiekulhanek
  Participant
  Posts: 2563
  grow up ph2t, get a mini z :smiley2::D
- February 4, 2004 at 2:08 am #49439
  Aaron
  Keymaster
  Posts: 2146
  I priced these the other day ph2t. I don’t think I can do them _that_ cheap. Mainly becuase I like to have ausmicro.com make a little cash outa them for the effort of stumping up the cash to buy them 100 (or whatever the minimum is) at a time. Not to mention these funny bills I get from Ireland….
  
  I think If I buy 100 I get the price down to the $2.50 each delivered same as the IRF7389 FETs for Mini-Z….
  
  But is that price good enough for people?
  
  A.
  
  Edited by – Aaron on 03 February 2004 21:12:20
  
  --
  Site Owner Guy.
- February 4, 2004 at 4:14 am #49445
  ph2t
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  Posts: 2088
  we’ll see what response you get….
  
  ph2t.
- February 4, 2004 at 4:23 am #49447
  Aaron
  Keymaster
  Posts: 2146
  Jamie, While playing around chasing ph2ts Micro FETs I plugged in a few searches for 1F 5.5V Super Caps…. Interesting price variations.. How much were you paying for them elsewhere?
  
  The pricelists would indicate they’d retail for about $8-10 each?
  
  A.
  
  --
  Site Owner Guy.
- February 4, 2004 at 4:25 pm #49455
  jamiekulhanek
  Participant
  Posts: 2563
  DSE used to have them for $6.95 i think, but due to sheer lack of volume they were discontinued.
- February 5, 2004 at 3:26 am #49463
  Aaron
  Keymaster
  Posts: 2146
  I’ll chuck one in with the next FET order… It’ll cost a touch less than that 🙂
  
  A.
  
  --
  Site Owner Guy.
- February 5, 2004 at 7:18 pm #49475
  jamiekulhanek
  Participant
  Posts: 2563
  great!!! just what i need, they arent available at electronics stores simply because nobody wants them!!
  
  Name a price posted and i’ll be happy to pay, even though im already in debt.
- February 5, 2004 at 10:32 pm #49483
  Aaron
  Keymaster
  Posts: 2146
  *laughs* could be a little while before it comes but it should be under $5 if the pricing sheets aren’t lying 😉
  
  A.
  
  --
  Site Owner Guy.
- February 6, 2004 at 2:45 am #49489
  jamiekulhanek
  Participant
  Posts: 2563
  I think i need one, gives you supreme power off the line, and when you back off and throttle it the response is better. Sorta like what a wastegate or BOV does.
- February 6, 2004 at 3:56 am #49491
  Aaron
  Keymaster
  Posts: 2146
  Doe it run in series with the positive motor wire or in parallel with the battery pack?
  
  --
  Site Owner Guy.
- February 6, 2004 at 5:10 am #49492
  jamiekulhanek
  Participant
  Posts: 2563
  In parallel with the battery pack, NEVER in parallel with the motor……can you imagine doing a quick reverse (charging the capacitor up) then dumping it foreward???? The capacitor would put a huge load on the esc and possibly blow it.
- February 6, 2004 at 1:27 pm #49497
  Aaron
  Keymaster
  Posts: 2146
  *nods* wasn’t going through the technical thoughts of the idea 😉
  
  A.
  
  --
  Site Owner Guy.
- February 6, 2004 at 2:29 pm #49501
  betty.k
  Participant
  Posts: 2487
  so how’s this thing going, hit 75 yet? and if so, get a pic of it going through a school zone:evil::8ball:
  
  Edited by – betty.k on 06 February 2004 09:31:17
- February 7, 2004 at 2:30 am #49510
  jamiekulhanek
  Participant
  Posts: 2563
  I got the parts today, but the 13 tooth titanium pinion will be here next week.
  
  The neodymium motor magnets I have reduce motor RPM by 20%, but Quadify the torque output.
  
  So if all things go to plan i might exceed my goal, but i best not count my chickens before they hatch…..
  
  Tonight i have CA glued all the tyres to the rims and rebuilt my brand new motor with ball bearings and Neodymium magnets. Some very high wattage coming out of this thing.
  
  Stay tuned ppl, i will conquer this bloddy thing!!!
- February 7, 2004 at 3:50 am #49513
  mocky
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  Posts: 239
  where did u get ur motor parts from im interested on building something better than stock .lol
- February 7, 2004 at 4:55 am #49514
  jamiekulhanek
  Participant
  Posts: 2563
  Not tellin!
  
  http://www.rcmart.com
- February 7, 2004 at 6:33 pm #49517
  mocky
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  Posts: 239
  im sure u have other sources.rite?
- February 8, 2004 at 3:40 am #49529
  jamiekulhanek
  Participant
  Posts: 2563
  i just gave you the link bonehead!
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