My Carrera undergoes a Chapman diet @ $10 a pound.
#1
Rennlist Member
Thread Starter
My Carrera undergoes a Chapman diet @ $10 a pound.
Yes, Colin Chapman, I've "added lightness"
Well my 47 lbs OE Moll battery died last week after about 5 years use, the last 20 months assisted with the help of a trickle charger.
I decided to go with a light weight Oddessey battery (PC925), 26 lbs, which because of it's smaller footprint requires the Rennline "cage".
About a $350 upgrade all together, about a $150 less if you consider the replacement cost of another regular battery.
Back of the envelop math suggest the 20 lbs saving cost $200.
PS consider how high these batteries are mounted.
PPS I kept the trickle charger plugged in during the swop and the car threw zero errors, including any radio presets, after a few minutes running.
Well my 47 lbs OE Moll battery died last week after about 5 years use, the last 20 months assisted with the help of a trickle charger.
I decided to go with a light weight Oddessey battery (PC925), 26 lbs, which because of it's smaller footprint requires the Rennline "cage".
About a $350 upgrade all together, about a $150 less if you consider the replacement cost of another regular battery.
Back of the envelop math suggest the 20 lbs saving cost $200.
PS consider how high these batteries are mounted.
PPS I kept the trickle charger plugged in during the swop and the car threw zero errors, including any radio presets, after a few minutes running.
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gargoyle (04-02-2020)
#3
Very nice!
Battery change is one of best and stealthiest weight mods you can do.
In terms of warranty, can Porsche make an issue out of a battery change if the new battery specs do not follow the factory specs?
I want to get a lightweight battery eventually but I don't want to risk my warranty.
Battery change is one of best and stealthiest weight mods you can do.
In terms of warranty, can Porsche make an issue out of a battery change if the new battery specs do not follow the factory specs?
I want to get a lightweight battery eventually but I don't want to risk my warranty.
#7
Rennlist Member
But how does it hold amperage compared to stock? Like how many days can you store your car without trickle charger vs. stock? or in colder climates?
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#8
Rennlist Member
Thread Starter
No need for a trickle charger, but like all things there is nothing for free here, the word is things like leaving the radio on after turning off the ignition may be more limited now - no biggie.
#9
Nordschleife Master
Sport bucket seats: - 50 lbs
Champion wheels: -30 lbs
Tubi exhaust: - 25 lbs
Total weight reduction: 105 lbs
Lopping off another 20 lbs with a battery brings it to 125 lbs. Not an insignificant number now.
#12
Bruce-First you become a movie star, then get cool wheels, and now this. I feel so stupid-I just replaced my OEM battery with a regular battery. If only I had known about this. This leaves me with two choices-either try to kill the battery off, or go on a diet & loose 20lbs. Nice work mate.
#13
Three Wheelin'
Twenty pounds for $200 isn't bad. In the racing bike bicycle world the general standard is to pay about $2/gram for lighter/more aero parts. Comparatively, you paid $3.74/gm. But if you're looking for performance is taking weight from an already light part of the car a good idea? That's not sarcastic, really, I don't know.
#14
Drifting
Twenty pounds for $200 isn't bad. In the racing bike bicycle world the general standard is to pay about $2/gram for lighter/more aero parts. Comparatively, you paid $3.74/gm. But if you're looking for performance is taking weight from an already light part of the car a good idea? That's not sarcastic, really, I don't know.
One pound = 454 grams.
So $10/pound = 2 cents/gram
Message is: Porsches are cheaper than racing bikes based on weight
#15
Rennlist Member
Thread Starter
Bruce-First you become a movie star, then get cool wheels, and now this. I feel so stupid-I just replaced my OEM battery with a regular battery. If only I had known about this. This leaves me with two choices-either try to kill the battery off, or go on a diet & loose 20lbs. Nice work mate.
Twenty pounds for $200 isn't bad. In the racing bike bicycle world the general standard is to pay about $2/gram for lighter/more aero parts. Comparatively, you paid $3.74/gm. But if you're looking for performance is taking weight from an already light part of the car a good idea? That's not sarcastic, really, I don't know.
And I've previously thrown lighter AWE sport cats on the rear - tit for tat?