5,000+ Pound EV - DIY Electric Car Forums
Go Back  

DIY Electric Car Forums > General Forum > Chit Chat

Register Blogs FAQ Members List Social Groups Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 09-21-2012, 12:08 PM
johntrhodes81 johntrhodes81 is offline
Junior Member
 
Join Date: Aug 2010
Posts: 9
johntrhodes81 is on a distinguished road
Default 5,000+ Pound EV

I am thinking about making a classic car into an EV. I know it is really heavy and it will probably be slow and have a short range. I just want to be able to cruise around town without getting 8 mpg.

That said would a AC50/Curtis setup connected to a transmission have enough power to cruise around? Any idea on the speeds I could reasonably accelerate to? I understand the rule of thumb for Wh/mi is divide the weight of the car by 10.

I am not having much luck figuring out how powerful of a motor I would need.

Thanks
John
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 09-21-2012, 12:15 PM
mora's Avatar
mora mora is offline
Senior Member
 
Join Date: Nov 2009
Location: Jyvaskyla, Finland
Posts: 286
mora is on a distinguished road
Default Re: 5,000+ Pound EV

What do you know about original engine? How much torque does it produce and at what rpm?
Reply With Quote
  #3  
Old 09-21-2012, 12:22 PM
johntrhodes81 johntrhodes81 is offline
Junior Member
 
Join Date: Aug 2010
Posts: 9
johntrhodes81 is on a distinguished road
Default Re: 5,000+ Pound EV

187 HP at 4,000 RPM
270 Lb.-Ft. at 2,000 RPM
With a really power eating basically single speed auto trans that I will replace. (2 speed trans with lockup torque converter, but it starts in second unless manually shifted to 1st)

If I could get to 40 MPH that would be nice.

John

Last edited by johntrhodes81; 09-21-2012 at 12:38 PM. Reason: Add info
Reply With Quote
  #4  
Old 09-21-2012, 01:35 PM
dragonsgate's Avatar
dragonsgate dragonsgate is offline
Senior Member
 
Join Date: May 2012
Location: North West Arkansas
Posts: 613
dragonsgate is on a distinguished road
Default Re: 5,000+ Pound EV

How about an eleven inch DC motor or bigger with a Minimum of 144volts and a Soliton 1. I have been known to miss critical info before but what kind of car?
Reply With Quote
  #5  
Old 09-21-2012, 01:38 PM
johntrhodes81 johntrhodes81 is offline
Junior Member
 
Join Date: Aug 2010
Posts: 9
johntrhodes81 is on a distinguished road
Default Re: 5,000+ Pound EV

Early 50's Packard, 127" Wheelbase. Its a boat.

John
Reply With Quote
  #6  
Old 09-21-2012, 02:28 PM
jeremyjs jeremyjs is offline
Senior Member
 
Join Date: Sep 2010
Posts: 370
jeremyjs is on a distinguished road
Default Re: 5,000+ Pound EV

Quote:
Originally Posted by dragonsgate View Post
How about an eleven inch DC motor or bigger with a Minimum of 144volts and a Soliton 1. I have been known to miss critical info before but what kind of car?
I second that. And say 144+ volts of calb 180 gray cells or more voltage and 100ah cells. What does your budget and range expectations look like? Big heavy vehicles require a lot of battery to have any range.

I think HPEVS recommends something like 3500lbs max on the ac-50 or you'll have really poor performance.

Last edited by jeremyjs; 09-21-2012 at 02:35 PM.
Reply With Quote
  #7  
Old 09-21-2012, 02:30 PM
mora's Avatar
mora mora is offline
Senior Member
 
Join Date: Nov 2009
Location: Jyvaskyla, Finland
Posts: 286
mora is on a distinguished road
Default Re: 5,000+ Pound EV

I'd love to do that kind of conversion too, heheh. It might not be the most economical electric vehicle but then what? It will be cool.

I'd say your car will perform similar to original with 11" dc motor and 1000A controller. Maybe even better as you get all the torque at really low rpm. You'll also need a large battery pack. AC50 might work too but will lack performance.

Take advantage of controllers high voltage capability if you end up going dc motor route. Go higher than 144V to keep battery amp draw lower and push all that torque to higher rpm.

Last edited by mora; 09-21-2012 at 02:33 PM.
Reply With Quote
  #8  
Old 09-21-2012, 02:34 PM
johntrhodes81 johntrhodes81 is offline
Junior Member
 
Join Date: Aug 2010
Posts: 9
johntrhodes81 is on a distinguished road
Default Re: 5,000+ Pound EV

Quote:
Originally Posted by mora View Post
I'd love to do that kind of conversion too, heheh. It might not be the most economical electric vehicle but then what? It will be cool.

I'd say your car will perform similar to original with 11" dc motor and 1000A controller. Maybe even better as you get all the torque at really low rpm. You'll also need a large battery pack. AC50 might work too but will lack performance.
Would the AC-50 be enough for cruising around like on 35 mph roads? No interstate or 2 lanes, right?

Thanks,
John
Reply With Quote
  #9  
Old 09-21-2012, 02:59 PM
dragonsgate's Avatar
dragonsgate dragonsgate is offline
Senior Member
 
Join Date: May 2012
Location: North West Arkansas
Posts: 613
dragonsgate is on a distinguished road
Default Re: 5,000+ Pound EV

Do you already have the ac 50? I have been looking at HPEVís AC motors and from what I have read they sound good. I have also corresponded with three guys that are running the AC50 and they give good reports on the performance but none of them are over 3,000 pounds. At 5,000 pounds you will need a real low gear to get that barge moving with out tearing up the motor. The Packard sounds like a cool car to cruise in. Is it going to look stock or are you going to slam it? Cruising is about being cool and showing your ride so even if you donít smoke the tires you still donít want it to be a total dog on take off.
Reply With Quote
  #10  
Old 09-21-2012, 03:45 PM
adeyo adeyo is offline
Senior Member
 
Join Date: Jun 2012
Location: Lynchburg, Virginia
Posts: 168
adeyo is an unknown quantity at this point
Default

Check out this combo....I've been thinking a heavy conversion myself and this seems to be a proven path.

http://www.topekaelectricmotor.com/e...les/ac-project

Almost 6000 lbs total, up to 70mph and if I recall correctly per my conversation, about 50 mile range
Reply With Quote
Reply

Share or Bookmark this

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

 
Support DIY Electric Car
Sponsors

All times are GMT -6. The time now is 12:24 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

Ad Management by RedTyger