Club Cobra Keith Craft Racing  

Go Back   Club Cobra > Manufacturers, Engine Builders, tools, and parts. > ERA---Speak with Bob Putnam

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Nevada Classics
MMG Superformance
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
Advertise at CC
Banner Ad Rates
Keith Craft Racing
August 2022
S M T W T F S
  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31      
  #1 (permalink)  
Old 05-15-2010, 02:40 PM
ERA 778's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2009
Location: Greer, SC
Cobra Make, Engine: ERA #778 427SC Keith Craft FE 428 stroker
Posts: 243
Not Ranked     
Default Optima Battery: Red or Yellow?

I'll soon be ready for a battery in my Cobra and I can't decide between the Red and Yellow options. I'm pretty sure about going with Optima, but what are guys using out there? I've got the trunk mounted battery option with the closed off compartment. I'll just be cruising and driving for fun mostly, so I'm sure there will be periods of weeks and maybe a couple of months when I can't drive the car. What should I buy?

Harold
Reply With Quote
Sponsored Links
Sponsored Links
  #2 (permalink)  
Old 05-15-2010, 03:06 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2008
Location: Driftwood, TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
Not Ranked     
Default

Definitely a red. Yellow tops are deep cycle and are meant for severe duty discharge environments like winching or powering lots of accessories with the engine off. I run a dual red/yellow setup in my expedition Land Cruiser. When camped/parked I switch the truck over to the yellow top only. That saves the red as my backup/jump-start battery if needed. Been running these batteries for 15 years like this.
Reply With Quote
  #3 (permalink)  
Old 05-15-2010, 03:07 PM
patrickt's Avatar
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,322
Not Ranked     
Default

Quote:
Originally Posted by ERA 778 View Post
I'll soon be ready for a battery in my Cobra and I can't decide between the Red and Yellow options. I'm pretty sure about going with Optima, but what are guys using out there? I've got the trunk mounted battery option with the closed off compartment. I'll just be cruising and driving for fun mostly, so I'm sure there will be periods of weeks and maybe a couple of months when I can't drive the car. What should I buy?

Harold
Don't have an answer, but if you could post some shots of your compartment that would be nice.
Reply With Quote
  #4 (permalink)  
Old 05-15-2010, 03:41 PM
marcalan's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2006
Location: pottstown, pa
Cobra Make, Engine: era 289 FIA #2112
Posts: 325
Not Ranked     
Default

I placed a battery tender cable on my battery so when I am not using it I can keep it charged, just a thought
__________________
live for the moment or it may pass you by
Reply With Quote
  #5 (permalink)  
Old 05-15-2010, 03:42 PM
mrmustang's Avatar
CC Member/Contributor
Visit my Photo Gallery
Gold Star Contributor
 
Join Date: Feb 2000
Location: Greenville, SC
Cobra Make, Engine: 70 Shelby convertible, ERA-FIA, mystery Ford powered 2dr convertible
Posts: 12,108
Not Ranked     
Default

Quote:
Originally Posted by elmariachi View Post
Definitely a red. Yellow tops are deep cycle and are meant for severe duty discharge environments like winching or powering lots of accessories with the engine off.
X2............



Bill S.
__________________
Instead of being part of the problem, be part of a successful solution.

First time Cobra buyers-READ THIS
Reply With Quote
  #6 (permalink)  
Old 05-15-2010, 04:07 PM
ERA 778's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2009
Location: Greer, SC
Cobra Make, Engine: ERA #778 427SC Keith Craft FE 428 stroker
Posts: 243
Not Ranked     
Default Trunk Photos

Here's what the trunk looks like so far. That's the stereo on the left. I moved the battery 1.5 inches left of ERA's position. I'm still a long way from getting this thing on the road!




Thanks for the feedback guys!
Reply With Quote
  #7 (permalink)  
Old 05-15-2010, 04:10 PM
Sledge's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2004
Location: Long Beach, CA
Cobra Make, Engine: BDR #168 427W 60+K miles and counting
Posts: 330
Not Ranked     
Default

I've had a yellow-top in mine for the last 5 years and has worked great. On very hot days in traffic I'll shut off the engine but leave the cooling fan to keep temps in good shape. Mine is also mounted in the trunk but is not vented--nothing to spill, no outgassing.

The red top is probably best for most applications.
__________________
Bill


"If your work speaks for itself, don't interrupt"
Reply With Quote
  #8 (permalink)  
Old 05-15-2010, 06:35 PM
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
Not Ranked     
Default

Deep Cycle batteries, unlike regular batteries, will force your alternator to put out as many amps as the battery can take. Deep Cycles are amp hungry! In some cases this leads to premature failure of your charging system from meeting that high demand rate for an extended period of time.

Worst case scenario would be, engine doesn't start, so you crank and crank the starter trying to figure it out and run the Deep Cycle battery pretty low. When the engine does start, the alternator will be putting out near max amps for quite awhile bringing that battery back up to speed.
Reply With Quote
  #9 (permalink)  
Old 05-15-2010, 09:10 PM
PANAVIA's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2008
Location: San Jose CA, CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
Not Ranked     
Default

Give Oddessy batteries a try -- they are smaller , Lighter and if you are using a gear reduction starter can provide all the AMPS you need.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
Reply With Quote
  #10 (permalink)  
Old 05-15-2010, 09:58 PM
onefastmustang's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Location: Fairfield, ca
Cobra Make, Engine: CRII with a Stroked Windsor
Posts: 976
Not Ranked     
Default

Red.. Red is faster...

But seriously, only put a yellow in a car if your firing up a serious stereo system. And with a cobra, who needs a stereo. The car is music.
Reply With Quote
  #11 (permalink)  
Old 04-27-2017, 09:00 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2016
Cobra Make, Engine: ERA#375, FE 428, 1966 block, built by Jim Coleman Racing Engines, Stratford, CT
Posts: 94
Not Ranked     
Default

I have been running an Optima since #375 was new in 1993. Believe it or not, the most recent battery an Optima Red Top 8022-091 75/25 was just changed out in 2016 after 14 years of use. Now, that battery was always on a small battery Tender when the ERA was parked in the barn. I now use the Optima Digital 400 battery tender and charger on the new Optima 8022-091. Based on past experience, the Optima has more than enough cranking amps for my 428 and lasts a real long time to boot. My voltage regulator and alternator appear to like the Optima as well seeing that they are all original to the first build.
Reply With Quote
  #12 (permalink)  
Old 04-27-2017, 04:13 PM
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2013
Location: Columbus, OH
Cobra Make, Engine: ERA 714
Posts: 713
Not Ranked     
Default

ERA 714 has a red one.

Phil
Reply With Quote
  #13 (permalink)  
Old 04-27-2017, 04:26 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2005
Location: Hillsboro, OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
Posts: 1,623
Not Ranked     
Default

Holy Thread resurrection- 7 years old thread brought back to life!

Something I learned about a year ago when I was getting a new battery for my Cobra is the new Optima batteries are made in Mexico now and the reliability is suspect. I've read a few negative reviews on the new batteries and warranty issues.

There are several new Absorbent Glass Matt (AGM) batteries similar to Optima available now that have great reviews and are slightly cheaper than the Optimas.

Bob
Reply With Quote
  #14 (permalink)  
Old 04-27-2017, 05:16 PM
snapier's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2014
Location: Moravia, NY
Cobra Make, Engine: Superformance ford v8
Posts: 85
Not Ranked     
Default

I have a Superformance SP01400, which came with the Optima Red.
Reply With Quote
  #15 (permalink)  
Old 04-27-2017, 05:25 PM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile

Ten years, or so, ago I bought a Optima battery for my Cobra. It lasted nine months. Local GM dealer warranty it. 13 months later I'm back. Next battery, no charge to me. It lasted less than a year. The guy behind the counter as me if I wanted a lead cell battery at no cost. I answered, Yep and 5 or 6 years later I had to replace it.

You can not give me a Optima battery to be used in a Cobra.


Dwight
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #16 (permalink)  
Old 04-27-2017, 05:27 PM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile

The power of the search button
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #17 (permalink)  
Old 04-27-2017, 08:08 PM
Rjw289's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2012
Cobra Make, Engine: Contemporary Classic 289 FIA
Posts: 155
Not Ranked     
Default

Optima red and use a battery maintainer when not in use. They are made in Mexico now so probably won't last as long.
Reply With Quote
  #18 (permalink)  
Old 04-28-2017, 03:16 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2016
Cobra Make, Engine: ERA#375, FE 428, 1966 block, built by Jim Coleman Racing Engines, Stratford, CT
Posts: 94
Not Ranked     
Default

I was not aware that Optima had changed sometime in the last 14 years. You learn something new all the time here, thanks for that info.

In any case, my new Optima is about 6 months old so fingers are crossed that I received a good one.

BTW, what are the "other" AGM type battery brands that are "good" or have a positive reputation now?
__________________
ERA 375 - former Clubcobra ID REDSC400
TESLA P90D is my daily driver
Reply With Quote
  #19 (permalink)  
Old 04-28-2017, 05:50 AM
csx4017's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2010
Location: Hermosa Beach, ca
Cobra Make, Engine: ERA#520, Roush 427SR
Posts: 203
Not Ranked     
Default

I just removed the passenger side battery placement and installed a 1500 Odyssey with billet aluminum hold-down in the upper shelf area of the ERA trunk. The two ganged 6 volt Optima red tops in the CSX4017LA are 7 years old and never needed a trickle charge. Have heard about changes to the Optima of today? Recommend Odyssey.
Nice job on the trunk.
Reply With Quote
  #20 (permalink)  
Old 04-28-2017, 06:05 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2016
Cobra Make, Engine: ERA#375, FE 428, 1966 block, built by Jim Coleman Racing Engines, Stratford, CT
Posts: 94
Not Ranked     
Default

Yup, my Optima is in the trunk too, on the passenger side. A long time ago I got a nice billet aluminum battery tray from Speedway Motors which holds it in place.
__________________
ERA 375 - former Clubcobra ID REDSC400
TESLA P90D is my daily driver
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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 03:54 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink