I know we have had some posts on lightweight batteris, but I cant seem to locate. What are you track and dedicated AX guys using? Links appreciated. Kicking off weight reduction phase II.

http://www.portablepower.com/items/batteri.../SL105/37L105S5
Bout 12 lbs

I have an Odyssey 680 in my 914 and 911, lots of places to buy them

Interesting topic this.

Like TimT i've gone the Odyssey 680 route, picked up the one without external metal shroud.
http://www.odysseybatteries.com/
http://www.odysseybatteries.com/battery/pc680t.htm

There's also Braille, no experience with them personally but the Suby boys rave about em.
http://www.brailleauto.com/

Now the interesting bit. For a dedicated AX / Track toy is it lighter to remove the charging system & replace with a Optima red top Or just stick with the lighwieght batteries?

Not only lighter, but that pulley sucks some power from the motor. If removing it is 4 HP, that is a 5% gain alone in my stock engine I've seen an odyssey drive dual electric fans in custom shrouds to cool both sides of the TIV, w/o case fan and associate pulley drag...carbed motor and not sure if alternator was hooked up either.

Yup drove 25 miles at night with broke fan belt. PC680 never missed a beat. Also run a Mallory Hyfire box which I am told is a power sucking pig.

You guys with your fancy-smanksi race batteries. Buy a 12 volt lawnmower battery for $30 and keep it charged. See this thread on mine...


http://www.914world.com/bbs2/index.php?show...&hl=battery

I bet it keeps your head light nice and bright too.
I have no problems DRIVING my car to events.

Joe,
I guess you're not "dedicated" enough.

Paul

and:

Paul I am two years behind JP. and maybe 5 behind you in sick ass car mods.
Dedication takes a certain amount of time to develop.
and you have to sneak shit by the wife. took her a week before she discovered the black fiberglass hood.

The question was for a dedicated track car, to me that implies towing to the track.

Paul:
Your battery is an overweight, acid drooling pig....no offence

The acid drips on the ground thru the holds I drilled everywhere. No harm done.

Sorry, dude, you'er gonna be 3 years back come spring.

You guys have it all wrong! My wife got me my short ratio 901 tranny for my Birthday and is giving me a motor rebuild for Christmas.

grant's wife is rad.

Where did you see that? Is there someone else in this area also running this?

I'll share my secrets if you share yours
I saw this in a blue gutted AX kart of a 914, kinda the ultimate woop your ass in sheeps clothing kinda ride. I think it was being towed by a bunch of scruffy dudes in a Ranchero. I never got a chance to meet them, but Bill & Nate, who work on my car when I can't, and are real cool guys, were part of the crew. Hah ha that was your car! Care to share with some photos of the stealth location of the battery mount?

We have a yellow top optima on the passengers side floor. Bolted down with a plastic box on it. I'd take some photos but I'm lacking a camera at the moment, my olympus crapped out.