Battery Changes... - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 10-11-2006, 08:46 PM
Member
 
Join Date: Nov 2002
Location: Scottsville
Posts: 123
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Battery Changes...

Someone mentioned to me that NASCAR racers change batteries during races. I have not followed this subject or know much about professional racing.

Can someone tell me why changing batteries would be important during a race? It would seem that a new battery which lasts for years in any other vehicle would certainly hold out for the several hours of almost any race unless no charging were taking place.

I thought that maybe they didn't put alternators on the engines to avoid the HP load to turn the alternator but was told that they do have alternators on their engines. That blew away my only guess that maybe they changed batteries because they lost charge.

Any guess what might be going on?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 10-11-2006, 09:00 PM
Member
 
Last photo:
Join Date: Sep 2005
Location: Canada
Posts: 157
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
From what I understand and have seen on TV is that the only time they change batteries is when they have a charging problem. And from my memory I believe that the battery is accessed from the left rear wheel house with the tire off I think. I'm sure someone more involved with nascar could answer.

John
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-12-2006, 05:02 AM
Member
 
Join Date: Nov 2002
Location: Scottsville
Posts: 123
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Battery Changes...

Hi John,
Thank you for the comment. It sounds reasonable to me that a correctly performing charging system should keep the battery useful over the duration of a race.

awbazar
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-12-2006, 12:01 PM
curtis73's Avatar
Hates: Liver. Loves: Diesel
 
Last wiki edit: How to find cheap parts
Last journal entry: 1999-2001: Getting it on the road
Last photo:
Join Date: Dec 2005
Location: Pittsburgh, PA
Age: 40
Posts: 5,128
Wiki Edits: 16

Thanks: 0
Thanked 2 Times in 2 Posts
I'm no Nascar expert, but I've never seen them change a battery during a race. The extra seconds in the pit wouldn't make up for any gains on the track. Even if the battery died or wore out, the alternator would keep it running, maybe at the penalty of 1-2 hp, but I can't imagine a battery dying that fast.

IMO, they don't change batteries during a race.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 10-12-2006, 03:04 PM
Bryan59EC's Avatar
Car? Truck? Who Cares
 

Last journal entry: First week of December
Last photo:
Join Date: Jun 2006
Location: San Antonio, Texas
Age: 54
Posts: 2,354
Wiki Edits: 0

Thanks: 1
Thanked 18 Times in 16 Posts
I have seen them changed.
A couple of times with an ignition issue--(other items changed as well)
Collision.

Don't see it too often though

Bryan
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 10-12-2006, 04:02 PM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage Last photo:
Join Date: Dec 2004
Location: Iowa
Age: 53
Posts: 1,645
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
There have been a few instances this year of battery changes. In the past it was done by removing the left rear tire and accessing the battery box. On the large tracks they can change them without losing a lap, short tracks 1 or more laps are lost. The Hendricks teams carry two batterys and can change over from inside the car by switch. There was someone else that had two on board and "switched" during a race this year. The car has to weigh 3500 #s anyway so they use the extra battery in place of ballast.
When their charging systems quit, they can continue on the battery for awhile but it usually dies before the end of the race.
They run some high draw ignition systems along with electric fans (during pit stops and cautions), usually 4 to 6 brake fans, tranny cooler fan, rear end cooler fan, and depending on the temps they will run an "air conditioner" to supply cool air to the drivers helmet, and/or a cool suit that has a pump.
It seems that this year there have been several battery's going dead.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Roll Bar Install Advice Mustangsaly General Rodding Tech 12 12-02-2007 08:33 AM
CD Player drains battery longt Electrical 5 04-01-2006 06:15 PM
Need help please with an electrical headake bowtieorbust Electrical 15 01-26-2006 03:01 PM
Starter keeps starting and battery exploded Huug Electrical 14 10-06-2005 05:48 PM
Spacers behind fan? moodier General Rodding Tech 14 10-06-2005 08:08 AM


All times are GMT -6. The time now is 08:37 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.