Weight reduction
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
The issue is if you drive the car on the street, you don't have enough RC in it to operate properly when using a small battery. Lets say you are at a stop light with the AC on and the stereo on, the alternator may not have enough output and the battery does not have enough RC, so you end up wearing out the alternator becasue it is always trying to keep an under capacity battery charged.
My period of using a small battery wasn't bad all of the time but I really hated hearing that starter struggle a little bit more with each restart after it had been parked for a while. I find that I have so much more freedom to leave doors open and leave the car parked for weeks on end with no battery tender on it with the full size battery in there.
And knowing that I might be causing less stress on my alternator is a plus as well.
The alternator might take up most of the slack of course as long as the car is still running, but still.
Melting Slicks
Joined: Nov 2009
Posts: 2,536
Likes: 15
...............but the "shallow" cycle battery is solely designed to provide large burst for short period of time (starter motor, lights and ignition). And the charging system (alt & voltage reg) is what "carries" the car and recharges the batt after ignition and all of the other stuff that has been mentioned (injectors, pumps, stereo, etc).
So all of this talk about my batt not "carrying" my cars capacity...makes me wonder about the condition of the charging system in these cars ??
But I do read that on the late model ECU cars the batt needs to be in the "system" for some sort of ECU voltage filter.
Thanks.............
So all of this talk about my batt not "carrying" my cars capacity...makes me wonder about the condition of the charging system in these cars ??
But I do read that on the late model ECU cars the batt needs to be in the "system" for some sort of ECU voltage filter.
Thanks.............
Team Owner
Joined: Jul 2003
Posts: 21,734
Likes: 0
From: Charleston/Lake Villa IL
Also for some of debate going on between runflats vs. Non-RF's are those run-flat numbers with the hard rubber-plastic core that gets wrapped around the wheel and then bolted together or just the actual tires themselves. I find it hard to believe that a hard dense thing like that only adds less then 3lbs each wheel over a RF without it.
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
Also for some of debate going on between runflats vs. Non-RF's are those run-flat numbers with the hard rubber-plastic core that gets wrapped around the wheel and then bolted together or just the actual tires themselves. I find it hard to believe that a hard dense thing like that only adds less then 3lbs each wheel over a RF without it.
Team Owner
Joined: Jul 2003
Posts: 21,734
Likes: 0
From: Charleston/Lake Villa IL
Apparently I didn't bother looking into run flats more because most of them are now side-wall supported.
Differences http://www.ehow.com/how-does_4897729...ires-work.html
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Nevermind I was thinking of the older run flat tire technologies where there was like a hard "second" tire that acts as an auxiliary support.
Apparently I didn't bother looking into run flats more because most of them are now side-wall supported.
Differences http://www.ehow.com/how-does_4897729...ires-work.html
Apparently I didn't bother looking into run flats more because most of them are now side-wall supported.
Differences http://www.ehow.com/how-does_4897729...ires-work.html
With my c6 I haven't run run-flats for 2.5 years now. I carry a plug kit from Wal-Mart (which I've used) and a Conti-Kit compressor + sensor safe goop from Tirerack (which I haven't used).
Thread Starter
Racer
Joined: Feb 2009
Posts: 425
Likes: 0
From: Diamondhead Mississippi
Tires really aren't an issue here because I will be using drag radials and on the street I use non rf re-11's because they are awesome.
That's pretty impressive. What did you do for weight reduction?
Dang....late to the discussion.....lol. And its right up my alley...
First off I run a "small" battery 24/7. Granted my car is not a daily driver...but have never...ever, ever had a problem, which maybe actually worse(car sitting in the garage for extended periods). Batt. has been in the car for 2+ years (11.7scr 346")...the batt. weighs about 6lbs and is in the original location.
And about static weight or dynamic.....I look at it like this...in this hobby we all love, it never hurts to reduce weight....be it static or dynamic (rotating). Here is a calc for you math wizards....http://hpwizard.com/rotational-inertia.html
Thanks.....fyi, I'm at 2950ish w/18's and 19's on a C5Z...with zero loss in creature comforts.
First off I run a "small" battery 24/7. Granted my car is not a daily driver...but have never...ever, ever had a problem, which maybe actually worse(car sitting in the garage for extended periods). Batt. has been in the car for 2+ years (11.7scr 346")...the batt. weighs about 6lbs and is in the original location.
And about static weight or dynamic.....I look at it like this...in this hobby we all love, it never hurts to reduce weight....be it static or dynamic (rotating). Here is a calc for you math wizards....http://hpwizard.com/rotational-inertia.html
Thanks.....fyi, I'm at 2950ish w/18's and 19's on a C5Z...with zero loss in creature comforts.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
I had seen a reference to another lightweight battery that I hadn't checked out so I looked into it briefly.
The Ballistic EVO 16-cell battery has 500 CCA and 28 Ah (lead-acid equivalent). Weight is 3.6 pounds, cost is $236 and it's made in the USA. The only negative reviews I found were about the site's configurator, not the batteries themselves. The battery reviews I found were all positive, actually glowing. The battery only loses 10% of it's charge per YEAR in a static state.
They have an optional charger that charges and "balances" the individual cells. They claim that periodic balancing can extend the battery life by up to two times the normal lifetime.
The Shorai models I'd look at are LFX36L3-BS12 and LFX27L3-BS12. LSX36L3-BS12 is 540 CCA and 36 Ah. Weight is 5 pounds and cost is $350. LSX27L3-BS12 is 405 CCA and 27 Ah. Weight is 4.2 pounds and cost is $276.
All of the batteries above have the correct terminal orientation.
San
The Ballistic EVO 16-cell battery has 500 CCA and 28 Ah (lead-acid equivalent). Weight is 3.6 pounds, cost is $236 and it's made in the USA. The only negative reviews I found were about the site's configurator, not the batteries themselves. The battery reviews I found were all positive, actually glowing. The battery only loses 10% of it's charge per YEAR in a static state.
They have an optional charger that charges and "balances" the individual cells. They claim that periodic balancing can extend the battery life by up to two times the normal lifetime.
The Shorai models I'd look at are LFX36L3-BS12 and LFX27L3-BS12. LSX36L3-BS12 is 540 CCA and 36 Ah. Weight is 5 pounds and cost is $350. LSX27L3-BS12 is 405 CCA and 27 Ah. Weight is 4.2 pounds and cost is $276.
All of the batteries above have the correct terminal orientation.
San
Safety Car
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
I'll post up if I purchase one.
San
Safety Car
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
San
Safety Car
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
I'd say if the new batt. can do/get the lifespan it claims or quite close to it, (and then almost double it with a special charger) it becomes financially close to a regular battery. But it also comes with the added benefit of the weight reduction.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
That's good info, thanks. I'd guess under ideal conditions and/or maintenance the 3 years is always possible; then also, the up to 6 years. Many, but not all people, get 6-7 years out of their original batteries, also w. proper maintenance and luck!
I'd say if the new batt. can do/get the lifespan it claims or quite close to it, (and then almost double it with a special charger) it becomes financially close to a regular battery. But it also comes with the added benefit of the weight reduction.
I'd say if the new batt. can do/get the lifespan it claims or quite close to it, (and then almost double it with a special charger) it becomes financially close to a regular battery. But it also comes with the added benefit of the weight reduction.
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
Here's a decent deal for anyone wanting to pick up the above-mentioned battery.
http://forums.corvetteforum.com/c6-p...-c5-or-c6.html
http://forums.corvetteforum.com/c6-p...-c5-or-c6.html
