Klasik-69 Posted December 11, 2012 Share Posted December 11, 2012 I don't want to throw a wrench into this thread but let's just stop and think about the ramifications of the weight gain/loss and its relevance. My car weighs 1080 without my fat arse. If I save 12 lbs on this, and I add my weight to the 1080 (+210 lbs) I have 1290 lbs before the weight savings and 1278 after. That amounts to 0.9% weight difference. That is less than 1%...........you won't even know it, and I doubt you can record any difference in lap times. I know what the problem is.............it's winter time and you guys are up north and can't take your cars out. So cabin fever is taking over, you look for things to do, and you start to hallucinate :smilielol5:. Here is the solution, come down to Florida where you can drive you car any time of the year. Forget changing the battery, in the summer time you'll sweat so much your body will lose the 12 lbs and you'll save a ton of money on the battery. And by the way, my car has the Oddysey battery, not sure of the model but it starts fine every time. Link to comment Share on other sites More sharing options...
JohnCh Posted December 11, 2012 Share Posted December 11, 2012 Somewhat ironic that the two people on this thread who have called into question the need for saving an additional 10+ lb by going with a lithium battery, both run an Odyssey battery rather than a cheaper, heavier, traditional car battery. Hmm... :jester: While I agree that 12lb doesn’t make a noticeable difference to the driving experience, saving a few pounds here and there does add up. There also aren't too many places on a se7en where you can shave off that much weight in one chunk without doing major surgery. -John Link to comment Share on other sites More sharing options...
Kitcat Posted December 11, 2012 Share Posted December 11, 2012 Both YellowSS and Blubarisax have saved 70-100 lbs without using any carbon fiber. Guys, wanna share your secret? Link to comment Share on other sites More sharing options...
Sean Posted December 11, 2012 Share Posted December 11, 2012 If Croc goes for the PC625 or similar, he'll be reducing battery weight by around 20 pounds from the Banner in the car now, and if he goes for the EVO2 16, close to 30 pounds. Link to comment Share on other sites More sharing options...
Klasik-69 Posted December 11, 2012 Share Posted December 11, 2012 Somewhat ironic that the two people on this thread who have called into question the need for saving an additional 10+ lb by going with a lithium battery, both run an Odyssey battery rather than a cheaper, heavier, traditional car battery. Hmm... :jester: While I agree that 12lb doesn’t make a noticeable difference to the driving experience, saving a few pounds here and there does add up. There also aren't too many places on a se7en where you can shave off that much weight in one chunk without doing major surgery. -John I agree, its tough to cut anything out of these cars............where is the excess ? I'm driving on a hard carbon fiber race seat, my interior finish consists of aluminum panels (Ok, padded center tunnel), carbon fiber wings, carbon fiber nose piece, no heater, no windshield, 13 lb aluminum wheels.....................other than me going on a diet (not a bad idea), what can I cut ? By the way, I didn't buy the Odyssey battery, it came with the car from the original owner. And since it sits in a small dedicated space on the firewall, I would likely have to replace it with the same. What is the lightest weight these cars can get to anyway ? Link to comment Share on other sites More sharing options...
Sean Posted December 11, 2012 Share Posted December 11, 2012 I have heard of bike engined variants getting below 390 kilos (860 lbs.) with the full Kate Moss treatment. Link to comment Share on other sites More sharing options...
blubarisax Posted December 11, 2012 Share Posted December 11, 2012 I lost 85# in the last six months with Medifast. Only because I ran out of parts to replace with carbon fiber. Link to comment Share on other sites More sharing options...
slomove Posted December 12, 2012 Share Posted December 12, 2012 Somewhat ironic that the two people on this thread who have called into question the need for saving an additional 10+ lb by going with a lithium battery, both run an Odyssey battery rather than a cheaper, heavier, traditional car battery. Hmm... :jester: -John You got a point there :seeya: but I did not really say it is generally a bad idea. Just that there is a point of diminished return of investment, especially for a mainly street-use car. If the car is already stripped down to the bones and lighter than helium the 10 pounds do make sense. But e.g. for my heavy 1300 lbs barge there are another dozen pieces that I should shed first. Link to comment Share on other sites More sharing options...
westy turbo Posted December 12, 2012 Share Posted December 12, 2012 (edited) So you think that the evo2 12cell,wont be sufficient?,id rather as said above to replace also my pc680,as i have to void my 7+ kilos from the tillett B6F seat Edited December 12, 2012 by westy turbo Link to comment Share on other sites More sharing options...
rikker Posted December 12, 2012 Share Posted December 12, 2012 is to drop a few pounds by the owner. Link to comment Share on other sites More sharing options...
Croc Posted December 12, 2012 Author Share Posted December 12, 2012 is to drop a few pounds by the owner. Ahhh Rikker….as refreshing as a fart in an elevator! Good to see you have not changed! I admitted in my first post that I have as much chance of that as seeing lips on a chicken. Anyway, my view on why this is not the best idea is….. Both YellowSS and Blubarisax have saved 70-100 lbs without using any carbon fiber. Guys, wanna share your secret? Yes they did and both you and I are still faster…so the logical conclusion I draw is more carbon, better tires and a lightweight battery is needed! :rofl: This week, I even took a thousand pounds out of my wallet for a Caterham track weekend at Spa-Francorchamps next March and it made no difference to my weight. No idea why….? I even considered non-carbon lightening options. By chance, I did look in the Victoria Secret catalog yesterday, purely research mind you, but I saw nothing that would fit a Caterham? Somewhat ironic that the two people on this thread who have called into question the need for saving an additional 10+ lb by going with a lithium battery, both run an Odyssey battery rather than a cheaper, heavier, traditional car battery. Hmm... John – this is good….very very good. Beer token winner on this thread! :-D I know what the problem is.............it's winter time and you guys are up north and can't take your cars out. So cabin fever is taking over, you look for things to do, and you start to hallucinate. A very reasonable theory – I definitely resemble that remark. But I look at it this way - my car is still cheaper than a woman, it starts more reliably, possibly looks better, and I get action any time I choose! True, my seven squeals like a woman when you put the brakes on but…..most importantly….I still get ‘wind in the hair feeling’…. just a little higher up my body with my seven! So it is only natural I want to buy her trinkets for Christmas…. :jester: Anyway, surprisingly no one has yet mentioned how reducing battery size is better for clearing up space under the hood for something else I am considering... Link to comment Share on other sites More sharing options...
Klasik-69 Posted December 12, 2012 Share Posted December 12, 2012 A very reasonable theory – I definitely resemble that remark. But I look at it this way - my car is still cheaper than a woman, it starts more reliably, possibly looks better, and I get action any time I choose! True, my seven squeals like a woman when you put the brakes on but…..most importantly….I still get ‘wind in the hair feeling’…. just a little higher up my body with my seven! So it is only natural I want to buy her trinkets for Christmas…. :jester: Anyway, surprisingly no one has yet mentioned how reducing battery size is better for clearing up space under the hood for something else I am considering... I never thought of it that way but you know, you're right. And the Seven won't argue with you, it won't complain if you take it to a cheap restaurant or look at another blonde (yellow 7??)................oh, the ramifications are endless. Wait, I'm married, 43 years of it, and I agree, I get more action from my 7. Ok, I give up, what else is going under the hood. It can't be big, so a nitrous bottle is out. Not enough room for a turbo or SC, too much noise for a big boom box. But just enough room for a little air compressor to power a set of air horns just behind the radiator. That's it, air horns. Link to comment Share on other sites More sharing options...
bsimon Posted December 12, 2012 Share Posted December 12, 2012 Hate to throw a turd in the punch bowl here, but... Have you guys thought about the ramifications of a LiPo battery exploding under the bonnet? Although these new batteries do have some built in precautionary devices that attempt to prevent such an occurrence, things still can go bad. LiPos explode in model planes and helis quite often. The brand name "Ballistic" doesn't articulate much confidence. Just saying... Link to comment Share on other sites More sharing options...
JohnCh Posted December 12, 2012 Share Posted December 12, 2012 Based on my earlier research, one of the benefits of a Ferrous Phosphate battery over a Cobalt, Manganese, or Nickel Oxide battery typically found in consumer devices, is safety. They are reportedly a lot more stable and harder to ignite. Are you hearing about LiFePO4 batteries specifically exploding, or Lithium batteries in general? -John Link to comment Share on other sites More sharing options...
bsimon Posted December 13, 2012 Share Posted December 13, 2012 I was referring to common LiPo batteries. Honestly, I wasn't aware that there was a lithium chemistry that was somewhat safe. A little reading up showed the ferric phosphate technology to be promising. Older technology LiPos are really dangerous. Smart RC model enthusiasts actually place their batteries in a ballistic bag for recharging and storage. They do pop on occasion. Link to comment Share on other sites More sharing options...
westy turbo Posted December 13, 2012 Share Posted December 13, 2012 Dont have much to loose as am a personal trainer quite close to get the balistic though. Link to comment Share on other sites More sharing options...
supersportsp Posted December 17, 2012 Share Posted December 17, 2012 JohnCH convinced me into getting the Evo2. Actually, I let him run (aka guinea pig) his for about six months before I pulled the trigger on mine. I haven't installed it yet thanks to my 11 month old, but it is seriously light and compact. Also gives me more mounting options much lower in chassis. Hell, some zip ties would hold this thing in place no problem is it so light. Link to comment Share on other sites More sharing options...
DavinceCode10 Posted January 2, 2013 Share Posted January 2, 2013 (edited) For a little price benefits moreover to the bodyweight, examine out Deka EXT14. In North america I selected one up for about $90. There are publish packages that can be bought for it too from here: . . . . Buzz App | Buzz Apps | Twilio Services | SMS Marketing | Wordpress SMS Plugin | SMS Plugin | WP SMS Plugin | Privacy Pro | Wifi Based App | Privacy Pro App Edited October 7, 2016 by DavinceCode10 Link to comment Share on other sites More sharing options...
Klasik-69 Posted January 10, 2013 Share Posted January 10, 2013 Not sure if anyone saw this but a Boeing 787 dreamliner just had an explosion when one of its lithium phosphate batteries exploded and started a small fire. Fortunately the plane was on the ground and nobody was in the plane. I think I'll stick with the heavy Odyssey and leave the explosion to the demolition experts.:seeya: Link to comment Share on other sites More sharing options...
Sean Posted January 10, 2013 Share Posted January 10, 2013 Not sure if anyone saw this but a Boeing 787 dreamliner just had an explosion when one of its lithium phosphate batteries exploded and started a small fire. Fortunately the plane was on the ground and nobody was in the plane. I think I'll stick with the heavy Odyssey and leave the explosion to the demolition experts.:seeya: I have not read of any explosions on commercial aircraft for some time now. Link to comment Share on other sites More sharing options...
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