Poll

Dave is getting a Sinclair C5, should he fix it up to original condition? Or should he add functionality?

Original Condition. It's a collector's item, it should stay that way.
11 (15.7%)
Add Functionality. It could use updates to the motors and control electronics.
59 (84.3%)

Total Members Voted: 69

Author Topic: What should Dave do with his Sinclair C5?  (Read 12897 times)

0 Members and 1 Guest are viewing this topic.

Offline ChrisGammell

  • Supporter
  • ****
  • Posts: 157
    • Chris Gammell's Analog Life
What should Dave do with his Sinclair C5?
« on: December 04, 2013, 04:21:00 am »
We talked about this on the show this week (http://www.theamphour.com/174-motors-and-upgrading-sinclairs). What do you think Dave should do with his new purchase? Make it original condition? Add function? Take the survey and then let us know more about your thoughts.
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #1 on: December 04, 2013, 04:53:52 am »
By keeping original, that pretty much means not touching the motor and control system. A new metal front wheel that doesn't melt when braking is a given  ;D
Don't think I'd ever rip out the original LED bargraph display, but I might augment that maybe.
In either case the external C5 appearance is what matters, and that obviously wouldn't change even if I changed the whole motor and drive system.
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #2 on: December 04, 2013, 05:04:30 am »
Oh boy, so much for the original LED display, this looks awesome!
http://www.c5owners.com/sinclair-c5-x-pod.aspx
 

Offline Bored@Work

  • Super Contributor
  • ***
  • Posts: 3932
  • Country: 00
Re: What should Dave do with his Sinclair C5?
« Reply #3 on: December 04, 2013, 06:38:38 am »
If it is intended as an investment don't change anything.
If it is intended for fun, hack and slash it as you please.
I delete PMs unread. If you have something to say, say it in public.
For all else: Profile->[Modify Profile]Buddies/Ignore List->Edit Ignore List
 

Offline peter.mitchell

  • Super Contributor
  • ***
  • Posts: 1568
  • Country: au
Re: What should Dave do with his Sinclair C5?
« Reply #4 on: December 04, 2013, 06:44:06 am »
Replace the big-ass lead acid with a LiFePO4 is a given, better energy density, better recharge capability, whether you change the motor ect is up to you.
Hands down, change the battery tech though.
 

Offline Kjelt

  • Super Contributor
  • ***
  • Posts: 5736
  • Country: nl
Re: What should Dave do with his Sinclair C5?
« Reply #5 on: December 04, 2013, 07:30:52 am »
Build in a flux capacitor, you know you want it  ;)
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #6 on: December 04, 2013, 08:55:23 am »
Replace the big-ass lead acid with a LiFePO4 is a given, better energy density, better recharge capability, whether you change the motor ect is up to you.
Hands down, change the battery tech though.

It doesn't come with a battery, so that's open slather from the get go. But LiFePO4 is pricey.
« Last Edit: December 04, 2013, 09:03:01 am by EEVblog »
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #7 on: December 04, 2013, 08:56:18 am »
Build in a flux capacitor, you know you want it  ;)

I have the time circuits...
 

Offline semach.the.monkey

  • Contributor
  • Posts: 7
Re: What should Dave do with his Sinclair C5?
« Reply #8 on: December 04, 2013, 09:19:28 am »
Welcome to the C5 world! Electric cars are the future!

My C5 has been put together purely from old bits I've found on eBay.  It wasn't a complete vehicle when I bought it, just a plastic body and a chassis, so I've got no problem with modifying it with better non-standard parts.  At the moment it has no electrics at all, no motor and no battery - but it pedals around just fine. 

In the summer though, I'll be fitting all new modern electric running gear.

You've already found c5owners.com, so you'll have an idea what's possible from these little beauties :-)

Spencer
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #9 on: December 04, 2013, 09:37:47 am »
In the summer though, I'll be fitting all new modern electric running gear.

I'm quite interested in that.
I've ridden a C5, and while I found it quite nice on the straights, it was quite a chore on any sort of gradient. And I live in the Hills District of Sydney, and they don't call it the Hills for nothing....
 

Offline semach.the.monkey

  • Contributor
  • Posts: 7
Re: What should Dave do with his Sinclair C5?
« Reply #10 on: December 04, 2013, 09:40:54 am »
I've ridden a C5, and while I found it quite nice on the straights, it was quite a chore on any sort of gradient. And I live in the Hills District of Sydney, and they don't call it the Hills for nothing....

My address also has "Hills" in it :( Sturmey Archer 3 speed hubs are fairly easy to retrofit, so that'll help both up and down hills.  Disc brakes are also a worth addition!

Spencer
 

Offline apelly

  • Supporter
  • ****
  • Posts: 1037
  • Country: nz
Re: What should Dave do with his Sinclair C5?
« Reply #11 on: December 04, 2013, 09:51:08 am »
Build in a flux capacitor, you know you want it  ;)

I have the time circuits...
You busted them dude...
I'd rather a Google clue, link, or some theory than "do this" (generally)
 

Offline apelly

  • Supporter
  • ****
  • Posts: 1037
  • Country: nz
Re: What should Dave do with his Sinclair C5?
« Reply #12 on: December 04, 2013, 09:54:31 am »
It's Dave's toy. He should do whatever he wants. I'd be careful to keep it street legal though.
I'd rather a Google clue, link, or some theory than "do this" (generally)
 

Offline DeepThought

  • Contributor
  • Posts: 8
Re: What should Dave do with his Sinclair C5?
« Reply #13 on: December 04, 2013, 10:48:39 am »
I would suggest, get a engine from a EV motorcycle. Or get two of those little chines hub motors for scooters.
Plus a really beefy LiFePo4 pack.
As a added bonus, you would have to learn (and blog) something about battery management and DC brushless or AC induction motor drive.
Your EV friend can surely hook you up with the right things and people. (forgot his name. He was on the video blog before)

I will probably never get to do such a project due to price. But I reckon you could kickstart fund it.
With the financial bits sorted, you are left with some ugly mechanical problems. :)
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #14 on: December 04, 2013, 11:00:03 am »
My address also has "Hills" in it :( Sturmey Archer 3 speed hubs are fairly easy to retrofit, so that'll help both up and down hills.  Disc brakes are also a worth addition!

Define "fairly easy"?
From what I see it looks like it involves welding of some description, that's kinda out of my current skillset.
http://c5alive.co.uk/forum/index.php?topic=2964.0
 

Offline Wytnucls

  • Super Contributor
  • ***
  • Posts: 2836
  • Country: be
Re: What should Dave do with his Sinclair C5?
« Reply #15 on: December 04, 2013, 11:31:16 am »
 

Offline AndersAnd

  • Frequent Contributor
  • **
  • Posts: 568
  • Country: dk
Re: What should Dave do with his Sinclair C5?
« Reply #16 on: December 04, 2013, 11:33:30 am »
See if it will blend: http://www.willitblend.com

 

Offline semach.the.monkey

  • Contributor
  • Posts: 7
Re: What should Dave do with his Sinclair C5?
« Reply #17 on: December 04, 2013, 11:58:44 am »
Define "fairly easy"?
From what I see it looks like it involves welding of some description, that's kinda out of my current skillset.
http://c5alive.co.uk/forum/index.php?topic=2964.0

Yeah, but only a little bit of welding. Get the bits ready, and pop in to your local mechanic and it'll be done in 10 minutes for the cost of a couple of beers!

Or, as Wytnucls suggests, go jet powered;
http://www.jetpower.co.uk/c5home.htm

Spencer
 

Offline angst7

  • Contributor
  • Posts: 16
  • Country: us
Re: What should Dave do with his Sinclair C5?
« Reply #18 on: December 04, 2013, 03:40:53 pm »
Seems like if you want a piece of living history, for the full nostalgia effect you should make only the bare minimum modifications to it for practical use and focus on keeping it original.

If you want a fun kit car, mod away, but then it's not a C5 anymore, is it?
 

Offline kfitch42

  • Frequent Contributor
  • **
  • Posts: 300
  • Country: us
Re: What should Dave do with his Sinclair C5?
« Reply #19 on: December 04, 2013, 04:05:54 pm »
Put a line of LEDs on the rear wheel covers. They could form a POV display when the wheels are turning.
 

Offline free_electron

  • Super Contributor
  • ***
  • Posts: 7242
  • Country: us
    • SiliconValleyGarage
Re: What should Dave do with his Sinclair C5?
« Reply #20 on: December 04, 2013, 08:19:18 pm »
should is send you a Tesla battery pack and drive train ?

That would be a hack ... sinclair C5 with Tesla powertrain ..

0 to 60MPH in subsecond.... goes once around the world on a single charge. Step on the accelerator and see the bodywork peel off due to air resistance.
Professional Electron Wrangler.
Any comments, or points of view expressed, are my own and not endorsed , induced or compensated by my employer(s).
 

Offline Spikee

  • Frequent Contributor
  • **
  • Posts: 568
  • Country: cn
Re: What should Dave do with his Sinclair C5?
« Reply #21 on: December 04, 2013, 09:27:25 pm »
Get some 6S 10 /20Ah batteries (use hobbyking buddy codes for 10-50% off)
and a 8.6Kw rc motor


This will make it real fast and go up a steep hill.

The hard part is to find a controller that can handle this thing.
Freelance electronics design service, Small batch assembly, Firmware / WEB / APP development. In Shenzhen China
 

Offline peter.mitchell

  • Super Contributor
  • ***
  • Posts: 1568
  • Country: au
Re: What should Dave do with his Sinclair C5?
« Reply #22 on: December 05, 2013, 05:52:14 am »
Get some 6S 10 /20Ah batteries (use hobbyking buddy codes for 10-50% off)
and a 8.6Kw rc motor


This will make it real fast and go up a steep hill.

The hard part is to find a controller that can handle this thing.

I wouldn't suggest that...
 

Offline JoannaK

  • Frequent Contributor
  • **
  • Posts: 337
  • Country: fi
    • Diytao making blog
Re: What should Dave do with his Sinclair C5?
« Reply #23 on: December 05, 2013, 01:21:37 pm »
Build in a flux capacitor, you know you want it  ;)

I have the time circuits...

I'd recommend against this idea.. not that time travel would't be awesome, but consider the *safety* of someone trying to reach 88mph  with a dingy like C5  :palm:
 

Offline Dongulus

  • Regular Contributor
  • *
  • Posts: 231
  • Country: us
Re: What should Dave do with his Sinclair C5?
« Reply #24 on: December 06, 2013, 12:31:13 am »
Something like this is probably better as a talking piece rather than a practical vehicle. I suggest trying to restore it to as close as you can to it's former glory.

Whatever you do, you should definitely get the poncho.  ;)
 

Offline NiHaoMike

  • Super Contributor
  • ***
  • Posts: 5638
  • Country: us
  • "Don't turn it on - Take it apart!"
    • Facebook Page
Re: What should Dave do with his Sinclair C5?
« Reply #25 on: December 06, 2013, 02:28:43 am »
Upgrade it, but try to make the mods easily reversible.
Cryptocurrency has taught me to love math and at the same time be baffled by it.

Cryptocurrency lesson 0: Altcoins and Bitcoin are not the same thing.
 

Offline peter.mitchell

  • Super Contributor
  • ***
  • Posts: 1568
  • Country: au
Re: What should Dave do with his Sinclair C5?
« Reply #26 on: December 06, 2013, 12:36:19 pm »
Dave, if you haven't seen it, you should check otu http://endless-sphere.com/forums/index.php it has lots of info on this kinda thing.
 

Offline MrAureliusR

  • Supporter
  • ****
  • Posts: 366
  • Country: ca
  • frozenelectronics.ca
    • Frozen Electronics
Re: What should Dave do with his Sinclair C5?
« Reply #27 on: December 09, 2013, 02:48:52 am »
Definitely, definitely, DEFINITELY mod it. Making it a practical form of transportation is what Clive Sinclair had in mind -- I believe hacking it into something practical is more in the spirit of the C5 than restoring it.
--------------------------------------
Amateur Radio operator VA3XMR
-.-. --.-  -.. .  ...- .- ...-- -..- -- .-.
 

Offline DeepThought

  • Contributor
  • Posts: 8
Re: What should Dave do with his Sinclair C5?
« Reply #28 on: December 09, 2013, 11:56:04 am »
 

Offline ivan747

  • Super Contributor
  • ***
  • Posts: 2017
  • Country: us
Re: What should Dave do with his Sinclair C5?
« Reply #29 on: December 09, 2013, 06:57:07 pm »
 

Online EEVblog

  • Administrator
  • *****
  • Posts: 30088
  • Country: au
    • EEVblog
Re: What should Dave do with his Sinclair C5?
« Reply #30 on: December 10, 2013, 11:11:51 am »
You have a bit of work ahead of you Dave.

No kidding. It basically as bad as I expected it could be. Was hoping I'd get lucky, but  :--
 

Offline MojoJojo

  • Newbie
  • Posts: 3
Re: What should Dave do with his Sinclair C5?
« Reply #31 on: December 12, 2013, 02:18:03 am »
The question should be rephrased: "Should Dave give up his engineer card so he can join the historical preservation society?"

 

Offline ivan747

  • Super Contributor
  • ***
  • Posts: 2017
  • Country: us
Re: What should Dave do with his Sinclair C5?
« Reply #32 on: December 13, 2013, 11:26:35 am »
Dave, you should keep the looks original and maybe add a brushless motor with reverse and a LiFePo battery
 

Offline Macbeth

  • Super Contributor
  • ***
  • Posts: 2552
  • Country: gb
Re: What should Dave do with his Sinclair C5?
« Reply #33 on: December 13, 2013, 06:36:57 pm »
My address also has "Hills" in it :( Sturmey Archer 3 speed hubs are fairly easy to retrofit, so that'll help both up and down hills.  Disc brakes are also a worth addition!

Define "fairly easy"?
From what I see it looks like it involves welding of some description, that's kinda out of my current skillset.
http://c5alive.co.uk/forum/index.php?topic=2964.0

Welding, meh, it's just glorified soldering. Should get yourself a MIG setup, they even do gasless now (kind of like rosin core solder). Those welding masks with the quick clear eye shields are great and dirt cheap too, used to cost over £500 each back in the 90's. I got me an apron and gauntlets for £5 from ALDI. I highly recommend doing a Eurotorch conversion to any cheapo MIG set too.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf