Lithium ion battery for the Hellcat

[2ndAmend]

Maybe just keep fewer volts in the stock battery?

Not that I know how much a volt weighs.

Volts don't weigh anything! You know that!!!! The AMP-HRS weigh a ton!!!!

 

[2ndAmend]

I am not after the quickest ET. I have not even drag raced it.

Absolutely understood. We are looking at very different objectives!

 

[DGatzby]

Absolutely understood. We are looking at very different objectives!

That’s funny. For me, the rear end now becomes balanced and lighter. Shit I have a giant BMR front sway bar holding it together. For me either those suckers are gripping on the course or I am modulating my right foot. But saying my grip does not change, the -30 lbs allows quicker acceleration and as important easier braking.

 

[2ndAmend]

That’s funny. For me, the rear end now becomes balanced and lighter. Shit I have a giant BMR front sway bar holding it together. For me either those suckers are gripping on the course or I am modulating my right foot. But saying my grip does not change, the -30 lbs allows quicker acceleration and as important easier braking.

Yeah, my biggest concern it breaking from 200+. which the RE does admirably! But that is not good enough for the "rules". I have been warned twice to get a chute, which is highly unlikely.

 

[Taxinator]

Good thread to keep going. Since my dad bought a T/A he wants it faster. Looking through here on batteries and going on amazon and it looks like a lot more options and cheaper prices. Could barely get one under $400 a few years ago

@Taxinator posted the battery he bought and @catdad @DGatzby and is still under $270 Stock demensions and weighs 20 lbs. The Stock battery is 44 lbs.


https://www.amazon.com/LiFePO4-Batt...=B0CXXVT7V5&ref_=pd_bap_d_grid_rp_0_77_t&th=1

Purchased mine July 2024 and it’s been perfect…starts quicker than the stock battery when new.

 

[covidcommander]

It shouldn't be any faster, or slower. Weight really have nothing to do with top speed. It'd take longer to reach that speed, but it'll be the same.

Weight sure does have something to do with top speed.

 

[vortecd]

I've been told by HC racers that a heavy battery is fine as it helps with traction. Lowering weight in the front is what makes a big difference. I removed the front sway bar and made 4 new PB's! Best was .07sec better! (9.993 down to 9.921)

I would be interested in any actual before/after results from a battery change.

Weight in the trunk can help depending on the track but there is plenty of weight over the rear already

 

[Speedy!]

Ron usually adds a 50lb sand bag to the trunk of his 170 and I think sees 1.2x 60s. For drag racing more over the rear tires seems better for Hellcat and Demon. If you're using one of these on a road course remove all the weight you can.

392 and 5.7 cars may benefit from weight reduction as they're less likely to blow the tires off I think.

In the C8 Z06 the battery is just in front of the windshield dead center. When that one goes flat Ill do a light weight option.

 

[Jimmy N.]

Weight sure does have something to do with top speed.

Looks like not even the land speed record chasers have learned about that yet. They're all concerned about aerodynamics and power instead.

Which makes perfect sense if going by what basic physics dictate.

 

[1971demon]

Maybe just keep fewer volts in the stock battery?

Not that I know how much a volt weighs.

Volt weigh...,046 ounces..(above 40 degrees)..less as temperature drops...