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Weight reduction..?

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Old Jun 21, 2022 | 05:20 AM
  #21  
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I pulled this mystery chart off another forum gives a key idea what normal batteries implement (lithium is in another category


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Old Jun 21, 2022 | 06:49 AM
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Originally Posted by Aardwolf
Who made the wheels? Reproductions can be heavy. You might have to look at the backside of the rim to ID. Some of the lightest batteries are lithium ion. You could shop around at Braille, anti gravity batteries, etc.
the wheels are GM original. There’s laser engraving on the inside. I’ll try to post a pic soon.
Interestingly; I was at C&S Corvettes yesterday and they told me these wheels are “very desirable“ because they’re a dealer add-on and do not come from the factory.
Does anyone want to buy/trade?
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Old Jun 21, 2022 | 06:54 AM
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Originally Posted by subfloor@centurytrans
Nope, 540 CCA.

This is the exact one I use.

https://www.batterymart.com/p-shorai...CABEgI-FvD_BwE
wow! Nice!
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Old Jun 21, 2022 | 07:12 AM
  #24  
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Originally Posted by im50fast
wow! Nice!
Quite incredible, if I do say myself
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Old Jun 21, 2022 | 12:26 PM
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Originally Posted by im50fast
wow! Nice!
I never had good luck with the Braille batteries as they died on me at the track if I left the radio on for too long.

With the Shorai the only thing I do to play it safe is disconnect it completely if I know the car will be sitting for an extended period of time in between races.
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Old Jun 21, 2022 | 09:54 PM
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Originally Posted by subfloor@centurytrans
I never had good luck with the Braille batteries as they died on me at the track if I left the radio on for too long.
While nothing can compare to the capacity of L batteries, here, the normal battery (are lead acid?) comes in with a great pricepoint, just as long as aware of RC.
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Old Jun 22, 2022 | 11:35 AM
  #27  
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You can add the Deka EXT18L AGM battery at 17.5 lbs and 340 CCA to that list. I used them exclusively for about 8 years and 50K+ miles. About $90 shipped IIRC a few years ago.
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Old Jun 22, 2022 | 12:47 PM
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Originally Posted by HOXXOH
You can add the Deka EXT18L AGM battery at 17.5 lbs and 340 CCA to that list. I used them exclusively for about 8 years and 50K+ miles. About $90 shipped IIRC a few years ago.
That's real weight savings, I must say, here you can drop weight, with the battery, within the budget great
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Old Jun 22, 2022 | 02:44 PM
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The 15-spoke wheels were GM ... like the Gumby's they are a forged wheel, so its unlikely you are going to find anything significantly lighter that does not cost a fortune. (I hate that they were chrome, but ...). I am also in the camp that 3,200 pounds seems like a lot (its 400 pounds more than my C4), but the stiff chassis, safety equipment, etc. adds up quickly.
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Old Jun 22, 2022 | 04:31 PM
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Originally Posted by 07MontyRed
I am also in the camp that 3,200 pounds seems like a lot (its 400 pounds more than my C4),
You better look again. The C4 tipped the scale at 3240# and the base C6 at 3200#, at least according to GM.

And just for giggles I looked up my 70 C3 at 3285#.
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Old Jun 22, 2022 | 04:31 PM
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Originally Posted by Scout51
Most certainly those are heavy wheels, wise shopping.
Originally Posted by 07MontyRed
The 15-spoke wheels were GM ... like the Gumby's they are a forged wheel, so its unlikely you are going to find anything significantly lighter that does not cost a fortune.
Oh wow, didn't know they are factory, I was under the impression they were reproductions, which makes for super heavy.

Something along the lines of what I mentioned, goes long ways in keeping down the weight.
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Old Jun 22, 2022 | 06:07 PM
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Originally Posted by 07MontyRed
The 15-spoke wheels were GM ... like the Gumby's they are a forged wheel, so its unlikely you are going to find anything significantly lighter that does not cost a fortune. (I hate that they were chrome, but ...). I am also in the camp that 3,200 pounds seems like a lot (its 400 pounds more than my C4), but the stiff chassis, safety equipment, etc. adds up quickly.
my 1994 weighed in at 3,361

The 1984 C4 weighed in at 3192.

Hardly 400 pound difference. Now with the HP and Torque difference, don't think that weight matters. The C6 weighs less than many sports cars, and same as some of European super cars.
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Old Jun 22, 2022 | 06:23 PM
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Originally Posted by Iceaxe
You better look again. The C4 tipped the scale at 3240# and the base C6 at 3200#, at least according to GM.

And just for giggles I looked up my 70 C3 at 3285#.
Anything, close to the C5Z/C6Z, is accomplishing something. Weight has crept up a lot over years. I know a weight effects accelerating and handling, makes a difference.
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Old Jun 23, 2022 | 05:40 AM
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Remove sound deadening
Lighter wheels/tires
Lighter brakes
Lighter exhaust
Lighter battery
Lighter seats

Easy things that don't affect the drivability of the car.
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Old Jun 23, 2022 | 01:54 PM
  #35  
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That's a great list! Similar things I do to my cars, works very well
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Old Jun 23, 2022 | 04:28 PM
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Originally Posted by Iceaxe
You better look again. The C4 tipped the scale at 3240# and the base C6 at 3200#, at least according to GM.

And just for giggles I looked up my 70 C3 at 3285#.
Yeah, I have it in my head the scales were in the 2950 range for my fairly stripped '85, but I agree GM says differently, so we'll go with that.

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Old Jun 23, 2022 | 04:43 PM
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I lost about 1400 pounds switching over from a Challenger...
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Old Jun 23, 2022 | 08:33 PM
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Originally Posted by Jailor97
I lost about 1400 pounds switching over from a Challenger...
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Old Jun 24, 2022 | 06:35 AM
  #39  
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Originally Posted by subfloor@centurytrans
I never had good luck with the Braille batteries as they died on me at the track if I left the radio on for too long.

With the Shorai the only thing I do to play it safe is disconnect it completely if I know the car will be sitting for an extended period of time in between races.
I’m very intrigued with the battery you shared.
you mention track use- do you know of any reason it may not be good for daily driver use?
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Old Jun 24, 2022 | 07:15 AM
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Originally Posted by im50fast
I’m very intrigued with the battery you shared.
you mention track use- do you know of any reason it may not be good for daily driver use?
I used the same battery for a while. I didn't have any issues in a daily driver. A friend of mine also used the same battery and it popped one day. I sold mine after that.
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