emodspitfire
emodspitfire New Reader
11/18/08 10:23 a.m.

Folks,

So at the last weigh in the Racecar was portly by about 60 pounds....

It currently has a standard spec battery that weighs 34 pounds.

Does anyone know of guidelines that will help select a lightweight battery?

Motor specs: 3.5l Buick V8, 11:00 to 1 compression. Starts easily with current Battery/carb/etc. Rarely started below 40 degrees F.

I am looking for a 14 or 15 pound battery. Can I get one of these that will start the motor and cost less than $100?

TIA,

Rog Smith

Autolex
Autolex Reader
11/18/08 10:36 a.m.

odyssey PC680, 15Lbs, I paid right at $100 shipped for mine.

iceracer
iceracer Reader
11/18/08 12:52 p.m.

That's what I use but it has to only start 2.0L.

wherethefmi2000
wherethefmi2000 New Reader
11/18/08 1:00 p.m.

try a motorcycle battery, you might be surprised what they can do. most motorcycles have a compression ratio of 12:1 or more, may be even tougher to start than a 3.5l buick , but I dunno.

Paul_VR6
Paul_VR6 New Reader
11/18/08 1:29 p.m.

I use a Deka ETX14L they're about $70 online, works fine all summer to crank 2.8L. The dead of winter it cranks slowly.

Will
Will New Reader
11/18/08 2:38 p.m.

A Braille B14115 works well on my 3.8 liter supercharged Ford V6, but compression is only 8.85:1.

blaze86vic
blaze86vic New Reader
11/18/08 3:20 p.m.

I use a Hawker Genesis G16EP, 13.5lbs. It is used to crank over a 2.5L 12.5:1 compression 4 cylinder. Not only will it crank the motor, but with a welded diff I accidentally tried to start the car while it was in reverse and strapped to the trailer still. It managed to spin both tires and crank the motor, so I think it should do fine on about anything. :)

Hasbro
Hasbro HalfDork
11/18/08 4:38 p.m.
blaze86vic wrote: I use a Hawker Genesis G16EP, 13.5lbs. It is used to crank over a 2.5L 12.5:1 compression 4 cylinder. Not only will it crank the motor, but with a welded diff I accidentally tried to start the car while it was in reverse and strapped to the trailer still. It managed to spin both tires and crank the motor, so I think it should do fine on about anything. :)

Pretty informative:

http://www.stealth316.com/2-dynabatt.htm

Will
Will New Reader
11/18/08 7:16 p.m.

Powermaster also unveiled a new line of very small batteries at SEMA (one is 4 pounds) that are interesting.

emodspitfire
emodspitfire New Reader
11/19/08 12:25 p.m.

Guys,

Thanks for all the help. The URL from Hasbro was excellent.

I have been trolling the WEB for about an hour looking for a standard Battery box for this size battery....No Luck.

Any Guidance for small plastic battery boxes?

Thanks,

Rog

GameboyRMH
GameboyRMH SuperDork
11/19/08 12:31 p.m.

Hmm I might pick up one of these for the AE92 and put my (still too heavy) Hankook gel battery in the Sammy to replace that leaky flooded lead-acid POS in there right now.

Autolex
Autolex Reader
11/19/08 12:54 p.m.

I got my PC680 and a folded aluminum (sleeve style) bracket for $133 Shipped.

Here

The Batt is $121 and the code at the top of the description gives you another $20 off, and the bracket is $32. I am pretty sure I had free shipping.

evildky
evildky Dork
11/19/08 11:58 p.m.

I also have the 680 in my 240Z, I got ait a few yers ago and got it for under $100, wieghs 13 lbs and works great so long as you don't leave any accessories on

emodspitfire
emodspitfire New Reader
12/25/08 11:21 a.m.

Thanks again to all the posters.

I bought the Hawker Genesys 12V16EP. Cranks the motor like a charm.

Battery box headscratchers....

SCCA Solo rules say that "..any Wet cell battery moved from standard position MUST be in a battery box...."

After talking with the Hawker sales engineer, she stated that the battery above is NOT a Gel cell. (Gel cells do not require a battery box per SCCA.), and the Hawker battery is Nonspillable. "Nonspillable" is prominent on the top of the battery.

Sooooo....do I go cautious and put this little beauty in a plastic box, or am I gonna pass Tech without the box?

Thanks to all.

Oh yeah...Happy Holidays to all us motorsports deprived gearheads !! (Everyone else as well!)

Rog

amaff
amaff HalfDork
12/25/08 12:37 p.m.

is it inside the passenger compartment or still in the stock location? If it's in the stock location you're fine. If it's not, you're probably still fine, but it wouldn't be a bad idea in any case.

yellowstonepart
yellowstonepart
1/18/10 12:25 a.m.

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bamalama
bamalama Reader
1/18/10 12:34 a.m.

canoe fail, wrong language

924guy
924guy Dork
1/18/10 7:23 a.m.
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