truck battery
#1 _lurkin308_
Posted 20 August 2006 - 07:09 PM
#2 _devilsadvocate_
Posted 20 August 2006 - 07:46 PM
Sure it would make a difference....... would make the car lean to one side.....
Edited by devilsadvocate, 20 August 2006 - 07:50 PM.
#3 _MYLJ_
Posted 20 August 2006 - 07:52 PM
#4 _lurkin308_
Posted 20 August 2006 - 07:58 PM
#5 _SSHatch_
Posted 20 August 2006 - 08:50 PM
#6 _lurkin308_
Posted 20 August 2006 - 08:53 PM
#7 _SSHatch_
Posted 20 August 2006 - 08:58 PM
That is unless you simply enjoy throwing money away or were planning on modifying stuff anyway. Its not the physical size of the battery that matters.
#8 _lurkin308_
Posted 20 August 2006 - 09:15 PM
#9 _devilsadvocate_
Posted 20 August 2006 - 11:06 PM
It may be that your starter isnt powerful enough to do the job or that you have poor connections in your present starter circuit or your present battery has had it.
You can estabish this by:
1. Establishing the voltage of the battery while cranking, if it drops below 10V, the battery most likely needs replacing or is not up to the output required of your starter. A typical car starter should only draw enough current to drop the voltage of a car battery in good condition below 10V when it is nearly stalled.
Even if you have 5 truck batteries in parallel, the available voltage will still be only 12V and only a theoretical 20% in cranking speed could be achieved over a regular battery that might drop to 10V when cranking.
2. If the voltage doesnt drop by at least to 10.5V, you have high resistance in your circuit somewhere.
3. Connect a 2nd battery in parallel, (as in jump starting). If the motor cranks faster here then:
a: present battery has had it or you really do need a bigger battery, try another good regular battery first.
If the motor cranks at the same speed:
a: you have high resistance connections(voltage when cranking >10.5) or
b: bigger battery will achieve nothing, perhaps looking at a higher power starter.
#10 _Hotrodder_
Posted 21 August 2006 - 12:19 AM
If another battery still doesnt start the engine, as the devil has said check the cable and connections between the battery and starter motor. Make sure there is also a heavy lead from the battery neg all the way to the starter or engine block as well as the positive lead, unless you are absolutely sure that the body is a good conductor of hundreds of Amps, which I doubt very much. Ensure the main pos lead is of sufficient thickness to withstand the current required over the distance from the rear to the front of the car. Again, if unsure check with a good auto elec, or if you know the cable size tell us and we'll let you know if its sufficient.
If your engine has very high compression like Steves wagon (well the 350 did anyway ) then a higher output starter may be required. If it runs ok on anything avail from the pump then the standard starter motor will be fine, look for something else unless the starter has carked it anyway, but of course if you can jump start it then the starter is not at fault.
As for a bigger battery being better, not always true. It will only supply high starting current for a longer period of time, nothing else. If your engine is tuned correctly there is no need for a bigger/truck battery.
Also a truck battery may actually harm your starter motor, simply by allowing you to crank the engine over for a long period of time, thus heating it up considerably and burning it out. The battery dies for two reasons, 1- because its flat, and 2- to protect the starter from internally cooking. But, as above if your engine is tuned correctly this shouldnt be a problem anyway.
Personally, I rekon dont waste your money by getting a more expensive battery, and secondly you'll use more fuel dragging the additional weight around anyway.
#11 _JNR_ATE_
Posted 21 August 2006 - 10:16 AM
I seen a test they did on one, hammered a 2 foot bar straight through the guts of it whilst still connected to the car. turned the key and it started.
There is 75 foot of lead in them
High CCA aswell, but there like $300.
That and a gear reduction starter with good connections and you should be able to flip the car on its roof.
Cheers
JNR_ATE
#12
Posted 21 August 2006 - 09:44 PM
#13
Posted 21 August 2006 - 11:39 PM
#14 _lurkin308_
Posted 22 August 2006 - 06:20 PM
#15 _devilsadvocate_
Posted 22 August 2006 - 07:23 PM
#16 _lurkin308_
Posted 22 August 2006 - 09:33 PM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users