Welcome to the North American Subaru Impreza Owners Club Wednesday March 27, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Proven Power Bragging

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-12-2011, 10:00 AM   #1
vision.dynamix
Scooby Guru
 
Member#: 139955
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Boston
Vehicle:
2015 Subaru STI
17Forester / 18Crosstrek

Default Electric Drag Car on the Dyno at ECS Performance

This thing came into the shop yesterday and distracted everyone working for a half hour.

I know nothing about it besides the fact it was scary as hell getting that thing strapped down..it had live 0/2 power wires everywhere in the "engine bay". It's dead silent..all you hear is the tires and rollers.




With the HP @ 50MPH set to 15, this thing put down 500WTQ.

Knowing that number was wrong, we tried to do a 50MPH run to find out what the proper setting for the HP @ 50MPH should be. At 40MPH it put down 300WHP. The batteries blew up somewhere around 45MPH. According to the dyno tech, this thing would EASILY put down 2000WTQ once the dyno was properly calibrated.

The owner claims this is the fastest electric drag car in North America.
* Registered users of the site do not see these ads.
vision.dynamix is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-12-2011, 11:09 AM   #2
stretchedk7
Scooby Guru
 
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:
06 Wrx RWD Auto
76MM-AEM-2200's

Default

wow!! power comes on lil abruptly id say! propb nice flat curves though
stretchedk7 is offline   Reply With Quote
Old 10-12-2011, 11:24 AM   #3
wgr73
Scooby Specialist
 
Member#: 232458
Join Date: Dec 2009
Chapter/Region: SWIC
Location: Las Cruces/El Paso
Vehicle:
2005 & 2008 STi
Cobb 20g & EFR 7670

Default

Hahahaha that is SWEET!!!! Man I could imagine the feel riding in that
wgr73 is offline   Reply With Quote
Old 10-12-2011, 01:02 PM   #4
CTSparky
Scooby Specialist
 
Member#: 282204
Join Date: May 2011
Chapter/Region: NESIC
Location: Northeast CT
Vehicle:
2011 5 Door STi
Plasma Blue Pearl

Default

that is just plain scary.....
CTSparky is offline   Reply With Quote
Old 10-12-2011, 01:13 PM   #5
mick_the_ginge
Citizen Mick
 
Member#: 27646
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Portland, Oregon
Vehicle:
2003 Sleeved 2.5
Oil Dry Sump Goodness

Default

I love electric, that car on the dyno ROCKS.

Here is a link to our local NW electric star: http://www.plasmaboyracing.com/whitezombie.php (street legal)

Page may be out dated now but still a cool car.

Some more information on the car: http://www.plasmaboyracing.com/history/2010.php

Nice Video: http://www.onelectriccars.com/white-...ctric-car/614/
mick_the_ginge is offline   Reply With Quote
Old 10-12-2011, 01:16 PM   #6
stretchedk7
Scooby Guru
 
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:
06 Wrx RWD Auto
76MM-AEM-2200's

Default

gotta love the fact that the power pretty much starts close or at peak power..not like your waiting for that small window of peak power like big turbos! guess effectively because you have so much powerband you can go much faster with less power.....
stretchedk7 is offline   Reply With Quote
Old 10-12-2011, 01:57 PM   #7
sumfoo1
Scooby Specialist
 
Member#: 82146
Join Date: Mar 2005
Chapter/Region: South East
Location: Raleigh, NC (Brier Creek)
Vehicle:
2005 Legacy GT
OBP

Default

... average power required is the same ... but when your "curve" is a plateau
sumfoo1 is offline   Reply With Quote
Old 10-12-2011, 02:08 PM   #8
wrxsubiemod
Scooby Specialist
 
Member#: 165104
Join Date: Nov 2007
Chapter/Region: SCIC
Location: Riverside CA
Vehicle:
E85 SoCalPorting
Owner

Default

Usually you see the motors blow before the batteries. Those batts are expensive!!!
wrxsubiemod is offline   Reply With Quote
Old 10-12-2011, 02:23 PM   #9
stretchedk7
Scooby Guru
 
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:
06 Wrx RWD Auto
76MM-AEM-2200's

Default

seems like you could run as fast as a normal car but with less power because accelleration should effectively be faster leaving the tree......you know!. either way sweet
stretchedk7 is offline   Reply With Quote
Old 10-12-2011, 02:23 PM   #10
stretchedk7
Scooby Guru
 
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:
06 Wrx RWD Auto
76MM-AEM-2200's

Default

the brushless rc vehicles have def stepped up their game with the lipo batteries!
stretchedk7 is offline   Reply With Quote
Old 10-12-2011, 03:47 PM   #11
Cole
Scooby Specialist
 
Member#: 64219
Join Date: Jun 2004
Chapter/Region: Tri-State
Location: NNJ + NESIC Interloper
Vehicle:
2011 Outbackness
2008 Legacy NA Hellastock

Default

You win the jalopynets for today, congrats.

http://jalopnik.com/5849088/hear-an-...+lbs-of-torque
Cole is offline   Reply With Quote
Old 10-12-2011, 03:59 PM   #12
vision.dynamix
Scooby Guru
 
Member#: 139955
Join Date: Feb 2007
Chapter/Region: NESIC
Location: Boston
Vehicle:
2015 Subaru STI
17Forester / 18Crosstrek

Default

Quote:
Originally Posted by Cole View Post
You win the jalopynets for today, congrats.

http://jalopnik.com/5849088/hear-an-...+lbs-of-torque
Holy ****!
vision.dynamix is offline   Reply With Quote
Old 10-12-2011, 06:44 PM   #13
foolio
Scooby Specialist
 
Member#: 9351
Join Date: Aug 2001
Location: Last Minute Motorsports
Vehicle:
2006 trailblazer SS
black

Default

I remember seeing some retard doing a burnout on an electic street bike and crashes. Short burst of power for sure!
foolio is offline   Reply With Quote
Old 10-12-2011, 06:50 PM   #14
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
WRX 03/04/07 hybrid
PSM

Default

A DC electric motor has 100% of available Tourqe at 0 rpm. (Stalled Rotor) This condition is bad for motor insulation because the current is at its peak. This is also why it is bad for the batteries.

An equation Tq= (hp x 5252)/Rpm

250 hp motor x 5252 / 1725 rpm = 761 lb/ft. Tq

1725 can be motor base speed. @ 5 rpm same motor 262,600 lb/ft. of Tq

This case is true if current is not limited. We use banks of resistors to limit current on motors i work with regularly so they dont destroy our equipment. I am a maintenance technician on Electric Overhead Travelling Cranes.

Last edited by slowgenius; 10-12-2011 at 06:56 PM.
slowgenius is offline   Reply With Quote
Old 10-12-2011, 07:11 PM   #15
wrxsubiemod
Scooby Specialist
 
Member#: 165104
Join Date: Nov 2007
Chapter/Region: SCIC
Location: Riverside CA
Vehicle:
E85 SoCalPorting
Owner

Default

Or just a good motor controller and Battery managment system.
wrxsubiemod is offline   Reply With Quote
Old 10-12-2011, 07:15 PM   #16
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
WRX 03/04/07 hybrid
PSM

Default

Since current needs to be limited, typically to 150% of the current rating of the motor for a given period of time, the torque is much less. Using a solid state motor speed control helps you do this much more efficiently than with resistors.

We also use IGBT's to switch current on and off to limit motor torque and thus the speed of the motor. IGBT's are transistors (semiconductor switches) that are typical in motor drives for cars, mining equipment, etc. Modern batteries are capable of outputting tremendous amounts of current and that generates heat.

This heat is wasted energy and must be dissipated. Too much heat will cause damage to batteries possibly fire. These are hurdles that are being overcome as we speak by companies such as Tesla, and i patiently await the cost of such vehicles to equate to combustion engine vehicles.
slowgenius is offline   Reply With Quote
Old 10-12-2011, 07:27 PM   #17
slowgenius
Scooby Specialist
 
Member#: 48350
Join Date: Nov 2003
Chapter/Region: MAIC
Location: Pittsburgh
Vehicle:
WRX 03/04/07 hybrid
PSM

Default

Quote:
Originally Posted by wrxsubiemod View Post
Or just a good motor controller and Battery managment system.
Not many people seem to care that banks of giant resistors waste electricity like a million toasters. Initially that is the way the cranes i work on were designed. Early motor speed control with contactors and resistors was the way to go.

Not until recently at least at the company i work for was it deemed necessary to account for all the wasted energy. An energy study revealed that by switching to motor drives on 1 crane would save 300k a year in electricity, paying for the conversion in one year, and providing added benefit of mechanical reliability that cannot be achieved with contactors. Our facility has over 80 cranes. Thats 24 million dollars a year. It will never happen
slowgenius is offline   Reply With Quote
Old 10-13-2011, 01:04 PM   #18
IMPORTIMAGE
Former Vendor
 
Member#: 79304
Join Date: Jan 2005
Chapter/Region: South East
Location: FL
Vehicle:
CALL 941-257-9618
www.ImportImageRacing.com

Default

damn im a tard. when you sent that i didnt realize it was electric...
IMPORTIMAGE is offline   Reply With Quote
Reply

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Just had the car on the Dyno kipper Proven Power Bragging 23 11-19-2007 02:22 PM
Got my car on the dyno VipersEatLotus Mid Atlantic Impreza Club -- MAIC 69 08-21-2006 03:20 PM
Got the car on the dyno @all aspects boost4life Mid Atlantic Impreza Club -- MAIC 16 07-11-2006 07:26 PM
my car on the dyno.... VID* BREWPUBEAVER North West Impreza Club Forum -- NWIC 9 03-30-2006 10:33 AM
my car on the dyno! woohoo jpsimon Member's Car Gallery 48 01-29-2006 05:50 PM

All times are GMT -4. The time now is 01:20 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.