Moparts

1 battery or 2 in your race car?????

Posted By: Mopar Ron

1 battery or 2 in your race car????? - 07/07/09 03:10 PM

I plan to run a alternator on my race truck and the only electronic stuff will be the
lights,
fuel pump,
MSD,
Fan,
elect water pump.

am I over thinking this with plans to run 2 batterys???
or should I keep it simple and go with one?
what do you guys run? thanks, Ron...
Posted By: 68valiant68

Re: 1 battery or 2 in your race car????? - 07/07/09 03:13 PM

I run 2 batts and the alt on my car, I only throw the charger on once or twice on sat. dont really ever need to, its just cheap ins.
Posted By: cudabunch

Re: 1 battery or 2 in your race car????? - 07/07/09 03:19 PM

Two D34/78 yellow tops @43.8 lbs each and 100 amp alternator.
Posted By: moparacer

Re: 1 battery or 2 in your race car????? - 07/07/09 03:26 PM

I put 2 in my car just because I needed weight to stay around 10.00 and I figured it mayes well be useful for something.
Posted By: FlyFish

Re: 1 battery or 2 in your race car????? - 07/07/09 03:31 PM

I just run one battery + an alternator.
Posted By: Jacob Pitt

Re: 1 battery or 2 in your race car????? - 07/07/09 04:56 PM

Just a yellow top here with no alternator, charging in between rounds.
My Dart has a yellow top and a small alternator and I still charge it.
Posted By: Bigcube

Re: 1 battery or 2 in your race car????? - 07/07/09 05:33 PM

2 batteries and a 90 amp alternator
Posted By: HemiDart68

Re: 1 battery or 2 in your race car????? - 07/07/09 05:55 PM

I added a second battery to my junk at the beginning of this year, i wish i had done it 3 years ago. My stuff with all the electronics, even with an alternator would tax one battery pretty hard. Two works way better for me.
Posted By: BBLM23

Re: 1 battery or 2 in your race car????? - 07/07/09 06:41 PM

One battery and a 50? amp alternator. In the Dart and the K.
Posted By: VernMotor

Re: 1 battery or 2 in your race car????? - 07/07/09 07:48 PM

2 and factory alt
Posted By: MR_P_BODY

Re: 1 battery or 2 in your race car????? - 07/07/09 07:54 PM

1 battery and a 85 amp alt..... have never charged
the battery in 6 years
Posted By: Quicktree

Re: 1 battery or 2 in your race car????? - 07/07/09 08:06 PM

Quote:

1 battery and a 85 amp alt..... have never charged
the battery in 6 years




but you haven't raced in 6 years either
Posted By: cudarex

Re: 1 battery or 2 in your race car????? - 07/07/09 08:10 PM

Quote:

Quote:

1 battery and a 85 amp alt..... have never charged
the battery in 6 years




but you haven't raced in 6 years either


Posted By: MR_P_BODY

Re: 1 battery or 2 in your race car????? - 07/07/09 08:14 PM

Quote:

Quote:

1 battery and a 85 amp alt..... have never charged
the battery in 6 years




but you haven't raced in 6 years either



This is the only year I've taken off(and I use to be
better at racing till the last 2 years)
Posted By: atoetly

Re: 1 battery or 2 in your race car????? - 07/07/09 08:25 PM

Quote:

Quote:

1 battery and a 85 amp alt..... have never charged
the battery in 6 years




but you haven't raced in 6 years either



Maybe Mike needs to quit running those TA converters and he could race more?

I'm running two batteries and an alternator also.

Attached picture 5339050-moretwist.jpg
Posted By: Quicktree

Re: 1 battery or 2 in your race car????? - 07/07/09 08:39 PM

Quote:

Quote:

Quote:

1 battery and a 85 amp alt..... have never charged
the battery in 6 years




but you haven't raced in 6 years either



This is the only year I've taken off(and I use to be
better at racing till the last 2 years)




you know im kidding with you
Posted By: MR_P_BODY

Re: 1 battery or 2 in your race car????? - 07/07/09 09:04 PM

Maybe Mike needs to quit running those TA converters and he could race more?

I'm running two batteries and an alternator also.



Nothing wrong with my converter.... its the guy in
the seat cant cut a light any more
Posted By: atoetly

Re: 1 battery or 2 in your race car????? - 07/07/09 09:26 PM

I know theres nothing wrong with your converter I was giving quicktree a hard time.
Posted By: Quicktree

Re: 1 battery or 2 in your race car????? - 07/07/09 09:32 PM

Quote:

I know theres nothing wrong with your converter I was giving quicktree a hard time.



not possible
Posted By: MegaDart

Re: 1 battery or 2 in your race car????? - 07/07/09 10:28 PM

In the Dart I started out with one redtop and 74amp alternator. Adding second redtop was a BIG improvement for that car.
I put the same setup in my new car for shakedown passes and it worked well. I have since put one 16v in and I am very impressed to say the least. I will be adding a 16v alternator very soon. Everything works better and runs faster with the extra volts.
Posted By: 340Cuda

Re: 1 battery or 2 in your race car????? - 07/08/09 01:06 AM

We run a red top for the ignition and a yellow top for everything else, no alternator.
Bill
Posted By: rowin4

Re: 1 battery or 2 in your race car????? - 07/08/09 03:02 AM

2 Wal-mart battery's, no alternator, and no belt o flip off. Charge between rounds while I'm off bsn.

Posted By: dave571

Re: 1 battery or 2 in your race car????? - 07/08/09 03:36 AM

2 battery's and a 78 amp alt for me.

I loved the switch to two batteries .
No more fear that it wouldn't start after running the cooling fan in the staging lanes.
Posted By: chryco

Re: 1 battery or 2 in your race car????? - 07/08/09 12:21 PM

So far all the testing I`ve done , one yellow top and a 75 Amp West Coast Electric alt. We`ll see how this lasts up after some hot laps.
Chryco

Attached picture 5340283-IMG_2521.jpg
Posted By: Al_Alguire

Re: 1 battery or 2 in your race car????? - 07/08/09 02:48 PM

Just one little Orbital battery and an East Coast Auto Electric alternator. Works for my turd.
Posted By: BB70DUSTER

Re: 1 battery or 2 in your race car????? - 07/08/09 03:13 PM

1 optima YELLOW top... and a chevy alternator...
Posted By: BloFish

Re: 1 battery or 2 in your race car????? - 07/08/09 04:31 PM

1 red top battery and a 100 amp alternator.
Posted By: jbc426

Re: 1 battery or 2 in your race car????? - 07/08/09 07:29 PM

I threw in one of these 78 pound Odyssey beasts and had a 75 amp alternator rewound to put out 100 amps.

Attached picture 5340945-\'Cudaprepaint011(Large).jpg
Posted By: srracing8

Re: 1 battery or 2 in your race car????? - 07/09/09 01:53 AM

2 Red Tops and a 100amp alt. N2O and plenty of electronics include all working lights. Added the alternator last year and only charged the batteries a couple of times between rounds after I left the fans and pump run for an hour.
Posted By: 540dust

Re: 1 battery or 2 in your race car????? - 07/09/09 02:33 AM

2 batteries and no alternator will look like this as far as battery voltage going down the track. Open attachement and view full screen. This is with Mallory 250 pump, MSD 7AL2, Mega 85 Delay box, tail(LED) and dash lights, CO2 rpm activated shifter control, RPM Datalogger, Electric water Pump drive, and Shogun Dial board (LED) running. So no problem with voltage as some would lead you to believe but I do have to charge between rounds which some may not want to deal with.

Attached picture 5341732-BatteryVoltagegraph.JPG
Posted By: rowin4

Re: 1 battery or 2 in your race car????? - 07/09/09 02:50 AM

One thing most people don't know is that a fully charged battery has about 2.15 per cell [ 6 cells in a 12 volt ] when fully charged, If you have only a 12 volt reading your battery is 80 percent discharged.

Posted By: 512 VALIANT

Re: 1 battery or 2 in your race car????? - 07/09/09 04:31 AM

That is great info 540duster. and an awsome graph. My car is not set up for an alt. as well & I have 2 batts. Where do the guys running an alt. mount it at? Esp those w/ motor plates??
Posted By: chryco

Re: 1 battery or 2 in your race car????? - 07/09/09 11:20 AM

I built a lower mount on my right elephant ear out of so aluminum channel . The adjuster / tensioner mounts to the frame .
Chryco

Attached picture 5342278-IMG_0093.jpg
Posted By: racerx

Re: 1 battery or 2 in your race car????? - 07/10/09 02:14 AM

Quote:

I just run one battery + an alternator.

x2 I'v run a eastcoast alt. and a walmart 1000 cc battery 4 3 years no problem.
Posted By: Mopar Ron

Re: 1 battery or 2 in your race car????? - 07/10/09 05:22 PM

Thanks for all the information guys.
its nice to know what everyone is using and why.
Ron....
Posted By: dthemi

Re: 1 battery or 2 in your race car????? - 07/10/09 09:29 PM

I run one with an alt, but I went dead on the line in the quarter finals because I broke a belt and didn't know it until the motor started to skip from low voltage. Having 2 batts would have saved me.
Posted By: RapidusMaximus

Re: 1 battery or 2 in your race car????? - 07/11/09 02:41 AM

Hope this isn't a hijack or too dumb...but...all I've ever run is one red top and no alternator (charge between rounds)...how do you wire two batteries in?
Posted By: emarine01

Re: 1 battery or 2 in your race car????? - 07/11/09 03:00 AM

Connect + to + & - to - 12 vdc with twice the amp hrs
Posted By: brktracr

Re: 1 battery or 2 in your race car????? - 07/11/09 03:14 AM

2 batteries with an alternator because I don't want to take a chance of going dead in staging lanes.
Posted By: Thumperdart

Re: 1 battery or 2 in your race car????? - 07/11/09 04:47 AM

I`ve been running two gel batts for years and what a difference it makes in easier starts and being able to run fan and elec water pump for cool downs not to mention starting.
Posted By: challenger73400

Re: 1 battery or 2 in your race car????? - 07/11/09 02:12 PM

One 1000 amp batt and no alt. I chg between rounds and never had a problem with it.
I have one of them newer chargers that is electronicly controled so it will not over charge the batt. I see some racers run two batt. and after every round they hook up one of those big transformer type chargers and leave it hooked up til the next round. Over charging kills batts!
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