GT40s.com
MK-I  MK-II  MK-III  MK-IV  GULF  MIRAGE  J-CAR  LOLA
GT40s.com
Home Forum Gallery Support GT40s.com  
Register FAQ Advertisers Search Today's Posts Mark Forums Read

Go Back   GT40s.com > >

Notices

Superformance GT40s Sponsored by Superformance.

Reply
 
Thread Tools Display Modes
Old 5th December 2013, 06:52 AM   #61
P2164's Avatar
P2164
Gold Supporter
United States
 
Join Date: Jun 2007
Location: Arkansas
GT40: SPF 2164 07-07
Posts: 1,795
Re: Battery Suggestions?

Quote:
Originally Posted by MHNCO View Post
Crazy they can make a battery with that amount of power and be so small, you have to love modern technology. I have a friend who used 2 in parallel, but he said there are drawbacks to the lithium batteries.

Rich thats a little lite for what your needing, I would go with a 1200 at least.
__________________
SPF GT40 MK1
and a bunch of other stuff
Typing is not my bag
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
P2164 is offline   Reply With Quote
Old 5th December 2013, 12:16 PM   #62
MHNCO's Avatar
MHNCO
Lifetime Premier Supporter
United States
 
Join Date: Feb 2011
Location: Colorado
GT40: SPF 2161
Posts: 2,725
Re: Battery Suggestions?

Can you share what drawbacks he pointed out? From what I have read the lithium iron batteries are safer than the lithium ion.

The Revolution in Rechargeable Batteries: Lithium Iron Vs Lithium Ion
MHNCO is offline   Reply With Quote
Old 5th December 2013, 01:17 PM   #63
Howard Jones's Avatar
Howard Jones
Gold Supporter
United States
 
Join Date: Jun 2002
Location: N Braunfels TX
GT40: GTD
Posts: 4,093
Re: Battery Suggestions?

I have one of these in my GT40 that is ten years old and still work like it was new. Never had to jumpstart car, recharge battery, or ANY other issue. Light weight, no liquid, small, and just perfect for a small kit car.

I just bought another for my SLC. I'm sold on them completely.


http://www.summitracing.com/parts/ody-pc925/overview/
Howard Jones is offline   Reply With Quote
Old 5th December 2013, 01:35 PM   #64
Igofaster's Avatar
Igofaster
8 Tenths
United States
 
Join Date: Aug 2007
Location: Granite Bay, CA
GT40: SPF GT P2265
Posts: 822
Re: Battery Suggestions?

Since this thread is still alive...I'll post some followup.

My PC1200 has been faultless. Gone months without being on any sort of charger, yet would start the car without the slightest hesitation. I'd certainly use one again.
__________________
Ron Rowberry
"Better to have lived one day as a lion than a lifetime as a lamb"
Igofaster is offline   Reply With Quote
Old 5th December 2013, 02:22 PM   #65
MHNCO's Avatar
MHNCO
Lifetime Premier Supporter
United States
 
Join Date: Feb 2011
Location: Colorado
GT40: SPF 2161
Posts: 2,725
Re: Battery Suggestions?

Guys, great feedback and each of those batteries are lighter than a typical lead/acid battery. The PC1200 is 38lbs I believe and the PC925 is 15lbs. The lithium battery is 5lbs. Another option are the Braille batteries. They are pricey and the same battery from Deka is a lot cheaper.

Braille Carbon Fiber Batteries - Free Shipping on All Orders @ JEGS
MHNCO is offline   Reply With Quote
Old 5th December 2013, 07:07 PM   #66
P2164's Avatar
P2164
Gold Supporter
United States
 
Join Date: Jun 2007
Location: Arkansas
GT40: SPF 2164 07-07
Posts: 1,795
Re: Battery Suggestions?

For what its worth the dry cell rechargeable are wonderful, I had one in my plane and flew without a worry even with dual electric fuel pumps, it was half the weight but a normal characteristic of dry cell rechargeable is they will deliver amperage at 12.6 volts then without warning it drops off to nothing when totally discharged. A normal lead acid battery will give you warning there is something wrong (turn the key on and car turns over slow, lights go dim at night, voltmeter starts dropping below 12V) but a dry cell just goes completely dead so if you buy one then keep an eye on the volt meter when running an make sure its 13 or above. The problem with lithium iron batteries is they require a higher voltage to charge so your alternator needs to pump at least 14V to make this work. Drag guys love them, light weight and deliver amps but have to have a special charger to charge them up before the run. I like red top, lots of cold cranking amps and has normal battery charging and discharging factors.
__________________
SPF GT40 MK1
and a bunch of other stuff
Typing is not my bag
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
P2164 is offline   Reply With Quote
Old 5th December 2013, 10:38 PM   #67
MHNCO's Avatar
MHNCO
Lifetime Premier Supporter
United States
 
Join Date: Feb 2011
Location: Colorado
GT40: SPF 2161
Posts: 2,725
Re: Battery Suggestions?

Thanks Jack. I think I may investigate further and maybe try one. Once upon a time I had a diesel hotrod toy with a 700hp/1300tq Cummins. I removed the intake charge heater and based on some feedback I had heard I wondered if it would start with the two batteries it had. It did and I ended up eventually with a single red top that I never had a bit of trouble with. I am wondering with the GT40 having no accessories and in my case not being driven at night so needing no lighting, if I could get away with what would normally be considered less than adequate? Won't know until I try but switching out a 45lb battery for a 5lb unit would shave a decent chunk off the car. I'll be that guinea pig
MHNCO is offline   Reply With Quote
Old 5th December 2013, 11:48 PM   #68
tractorboy
10 tenths
United States
 
Join Date: Nov 2008
Location: USA
GT40: CAV # 82 SOLD
Posts: 1,721
Re: Battery Suggestions?

Mike, did I understand that correctly..... no night driving? Any reason for that? I would imagine the car would look spectacular under "street" lights.
tractorboy is offline   Reply With Quote
Old 5th December 2013, 11:51 PM   #69
MHNCO's Avatar
MHNCO
Lifetime Premier Supporter
United States
 
Join Date: Feb 2011
Location: Colorado
GT40: SPF 2161
Posts: 2,725
Re: Battery Suggestions?

Well haha my tastes of driving are usually less noticeable at 6am than at 12pm and are a lot more fun
MHNCO is offline   Reply With Quote
Old 6th December 2013, 12:23 AM   #70
Bigblockquad
4 Tenths
United States
 
Join Date: Nov 2006
Location: Norcal
GT40: SPF GT
Posts: 446
Re: Battery Suggestions?

My reasoning for the ETX18L were along the lines of what Ron did with his car and the fitment of a PC680. I like the idea of hiding the MSD in with the battery and from my research it's one of the largest ones that fits. I've had several PC925's and like them. I still have two for my RX-7 but for the above reason it won't fit next to the MSD. As stated earlier Deka and Braille are the same internally. I don't think the Braille name is worth the extra $$$ IMO.

Also when my car's parked its on a battery tender. Time will tell.
Bigblockquad is offline   Reply With Quote
Old 6th December 2013, 06:40 AM   #71
P2164's Avatar
P2164
Gold Supporter
United States
 
Join Date: Jun 2007
Location: Arkansas
GT40: SPF 2164 07-07
Posts: 1,795
Re: Battery Suggestions?

Give a shot Rich, if it works thats great if it doesn't they are very useful and stay charged for years.

I don't like to drive at night in my GT40 or my truck, we have plenty of deer around here and hitting one would be bad news in the 40. I lost one of my very good friends a month ago, he hit a cow on a foggy morning in his 3/4 ton truck. From the videos Mike has shown in Colorado I'm certain there are big creatures walking around that would destroy the 40. Just call me old.
__________________
SPF GT40 MK1
and a bunch of other stuff
Typing is not my bag
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
P2164 is offline   Reply With Quote
Old 6th December 2013, 12:59 PM   #72
Dave Hood's Avatar
Dave Hood
Lifetime Premier Supporter
United States
 
Join Date: Mar 2011
Location: Fort Mill, SC
GT40: SPF 2135
Posts: 353
Re: Battery Suggestions?

Yes, an Elk at 75 mph would not be good. Although I suspect that Mike may drive a bit faster than that.....
Dave Hood is offline   Reply With Quote
Old 6th December 2013, 06:32 PM   #73
P2164's Avatar
P2164
Gold Supporter
United States
 
Join Date: Jun 2007
Location: Arkansas
GT40: SPF 2164 07-07
Posts: 1,795
Re: Battery Suggestions?

Quote:
Originally Posted by Dave Hood View Post
Yes, an Elk at 75 mph would not be good. Although I suspect that Mike may drive a bit faster than that.....
NEVER EVER!
__________________
SPF GT40 MK1
and a bunch of other stuff
Typing is not my bag
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
P2164 is offline   Reply With Quote
Old 6th December 2013, 10:19 PM   #74
Howard Jones's Avatar
Howard Jones
Gold Supporter
United States
 
Join Date: Jun 2002
Location: N Braunfels TX
GT40: GTD
Posts: 4,093
Re: Battery Suggestions?

I believe these are the same thing as the odyssey just from a different company. Much less money.


http://www.summitracing.com/parts/xsp-s925/overview/
Howard Jones is offline   Reply With Quote
Old 6th December 2013, 10:27 PM   #75
MHNCO's Avatar
MHNCO
Lifetime Premier Supporter
United States
 
Join Date: Feb 2011
Location: Colorado
GT40: SPF 2161
Posts: 2,725
Re: Battery Suggestions?

25lbs

Need to do a lbs/price comparison
MHNCO is offline   Reply With Quote
Old 6th December 2013, 10:28 PM   #76
MHNCO's Avatar
MHNCO
Lifetime Premier Supporter
United States
 
Join Date: Feb 2011
Location: Colorado
GT40: SPF 2161
Posts: 2,725
Re: Battery Suggestions?

Quote:
Originally Posted by Dave Hood View Post
Yes, an Elk at 75 mph would not be good. Although I suspect that Mike may drive a bit faster than that.....
Its funny how those wide angle GoPros make 70mph seem like 140...
MHNCO is offline   Reply With Quote
Old 8th December 2013, 12:40 AM   #77
Boxerman
3 Tenths
United States
 
Join Date: Jun 2013
Location: USA
Posts: 364
Re: Battery Suggestions?

Quote:
Originally Posted by MHNCO View Post
I currently run one of these in my Lotus. The only issue is an elise always draws current for the bogus alarm, so you need to keep the battery plugged in to its special charger or flip the kill switch. Once these shorai batteries run down they are toast, and on a lotus the alarm will kill any battery in 1 week.

On a Gt40 there should be no current draw when ignition is off?

I had thought of running two of these in parelell for my GT40, but if it will start with one then one is all you need. Great way to loose weight.

Great product.
Boxerman is offline   Reply With Quote
Old 18th December 2013, 04:46 AM   #78
PANAVIA's Avatar
PANAVIA
Lifetime Premier Supporter
United States
 
Join Date: May 2010
Location: Northern CA
GT40: Ordered - p23xx
Posts: 56
Re: Battery Suggestions?

There are two ways to get the oddessy 925 with a metal case, and without. We have used several oddessy batteries in various sizes and have been 110% happy - if you don't want a dry cell you might want to make sure your bat-cave is vented really well.
__________________
PANAVIA Steve Wood
S.J. CA, SPF Cobra & Daytona
PANAVIA is offline   Reply With Quote
Old 26th March 2017, 01:50 AM   #79
phase5
Rookie
United States
 
Join Date: Mar 2017
Location: California
GT40: GTD40 #219
Posts: 93
Re: Battery Suggestions?

Quote:
Originally Posted by Igofaster View Post
Since this thread is still alive...I'll post some followup.

My PC1200 has been faultless. Gone months without being on any sort of charger, yet would start the car without the slightest hesitation. I'd certainly use one again.
hello Ron from Roseville. Might you still have your 40? I was just going to install a yellow top Optima and ran across this tread.
phase5 is offline   Reply With Quote
Old 12th April 2017, 12:36 PM   #80
Silver66fb's Avatar
Silver66fb
A Tenth
United States
 
Join Date: Sep 2015
Location: League City, TX
GT40: SPF #P2334
Posts: 181
Re: Battery Suggestions?

Ken,
After trying an Odyssey PC925, I changed to a Braille B2015. It still fits in the battery box WITH the MSD box and has more CCA than the Odyssey. I'm happy with it.
__________________
Tim Terry
SPF GT40P/2334
Silver66fb is offline   Reply With Quote
Reply


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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Which Kit? Suggestions kd4tsc All GT40 13 13th October 2009 11:29 AM
Tire suggestions Vintage64 Superformance GT40s 17 4th February 2008 05:56 PM
Looking for Suggestions - Come one come all! Ron Earp All GT40 20 6th September 2005 11:42 PM
Suggestions for the forum wbmusarra All GT40 1 1st September 2005 04:53 PM
any suggestions????? drew All GT40 0 18th April 2004 10:38 PM


All times are GMT -4. The time now is 10:33 AM.