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Author Topic:   CHARGE OR NOT ???
dirt poor racing
Member
posted January 30, 2004 02:59 PM
WE ARE RUNNING A ALTERNATOR AT THIS TIME, I WAS TALKING TO A LATE MODEL MOTOR MAN AND HE SAID THEY DID NOT RUN ONE SO IF THEY DON'T SURLY WITH PIONTS AND A STOCK COIL WE WILL BE OK. NEED FEED BACK. THANKS.. [WE HAVE USE A 750CC AMP BATTERY.]


dirtbuster
Member
posted January 30, 2004 03:56 PM
I would say the majority of short track racers do not use an alterantor. You just have to make sure your abttery is well charged before you go racing. In our mod we stick a tricle charger on it to keep it topped off and never have trouble with it dying out.


supwitchew
Member
posted January 30, 2004 07:42 PM
I don't run one either. As long as you don't run any enduro type races, it will be fine. My friend used to run an alternator. He kept throwing the belt. He got rid of it and he's never had a problem.


Tim Weiss
Member
posted January 30, 2004 08:11 PM
Bought a trickle charger from auto zone for 26 dollars and mounted it in the car leave it plugged in all week and when you come in the pits. battery is always good and hot.


Okie11m
Member
posted January 30, 2004 08:23 PM
I don't run one. I use a red top & have forgot to charge it before & it ran 2 weekends with no problems.


Raz_900
Member
posted January 30, 2004 10:32 PM
16V is a much better option than an alternator. They can be run 3-4 weeks if it's not a really long race. Even a nearly dead 16V still puts out more juice than a fully charged 12V.



udecide66
Member
posted January 31, 2004 06:12 PM
Zero is right an alt puts out around 14.3 volts, a fully charged battery is about 12.5, when you multiply it through a coils windings there is a LARGE difference in output. And if you get a battery cable knocked off the car will keep going. 16 volts are better but some tracks are making them illegal and in the nationals they just ran here in Florida they were not supposed to be used.
Even using the BEST battery after 50 laps of running time (around 10 - 15 minutes) The amperage of the battery will be on the short side. After a race weekend before you put the charger on the battery start the car and with it running put a meter on the battery and under load (the engine using power) it will be about 10 volts. With the car not running it will probably show 12 but the only way to check a battery is under load.
If you are worried about the power loss of an alt. put an on off switch on the trigger wire or the output wire (if on the output make sure it can handle the amperage, I would use another master disconnect switch)so you can turn it off for qualifying or whatever. Then you could even turn it on when ideling or under caution and help the battery along and turn it off for racing.


Raz_900
Member
posted February 02, 2004 10:58 AM
quote:
Originally posted by udecide66:
Will I hurt my mini starter motor by using a 16 Volt battery? If not I will put in a 16 volt battery.


I've had a 16V in 1 car for 3 years and another for 1 year. Neither have had any electrical problems. Makes the gauge lights nice and bright so you can actually see them (I use white faced gauges with green back light). Both cars have stock rebuilt starters on them that have never been replaced.

Info on 16v battery http://www.turbostart.com/16VFAQ.htm


udecide66
Member
posted February 02, 2004 05:58 PM
THANKS FOR THE INFO--INPOUT..


R26MOD
Member
posted February 08, 2004 06:57 PM
We run a 358 Dirt Modified here in the Northeast. Have MSD system in car, and on average night have no problem running with out alternator. But on special nights when we have to run over 50 laps I put in the alternator.


norightturn
Member
posted February 09, 2004 09:22 AM
Even with the best 12 volt battery you are down about 2.3 volts at the battery at the begining of the night. 2.3 times the coil (depending on the coil) 1-3000 volts different. If you are running an MSD it helps a little more with the loss but it will still drop a hugh amount by the end of the night.


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