2 trunk batteries location ?
#749257
07/16/10 12:39 AM
07/16/10 12:39 AM
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Joined: Aug 2006
Posts: 1,340
Pennsylvania
proshiftcharger
OP
pro stock
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OP
pro stock
Joined: Aug 2006
Posts: 1,340
Pennsylvania
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When running 2 batteries in the trunk (4 link/4 speed) where/which side is best and why? Split the difference with 1 on each side? or Both on same side..where & why? Just for simplicity or does it serve for better weight placement or traction??  thanks in advance, Doug
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Re: 2 trunk batteries location ?
[Re: proshiftcharger]
#749261
07/16/10 08:13 AM
07/16/10 08:13 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
When running 2 batteries in the trunk
(4 link/4 speed) where/which side is best and why?
Split the difference with 1 on each side?
or
Both on same side..where & why?
Just for simplicity or does it serve for better weight placement or traction??
thanks in advance,
Doug
Being a 4-link car I would split them... 1 on each
side... when you apply the preload its only about
20# so if it weighed more on the right it might
end up with a negative preload(which is ok).... I'm
a 1 battery guy and its mounted in the center right
ahead of the fuel cell
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Re: 2 trunk batteries location ?
[Re: MR_P_BODY]
#749262
07/16/10 09:11 AM
07/16/10 09:11 AM
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Joined: Aug 2009
Posts: 456
corpus christi tex
Cheatham
mopar
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mopar
Joined: Aug 2009
Posts: 456
corpus christi tex
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Quote:
Quote:
When running 2 batteries in the trunk
(4 link/4 speed) where/which side is best and why?
Split the difference with 1 on each side?
or
Both on same side..where & why?
Just for simplicity or does it serve for better weight placement or traction??
thanks in advance,
Doug
Being a 4-link car I would split them... 1 on each
side... when you apply the preload its only about
20# so if it weighed more on the right it might
end up with a negative preload(which is ok).... I'm
a 1 battery guy and its mounted in the center right
ahead of the fuel cell
Same here center and forward of fuel cell. i dont like the idea of a batt mounted next to a fuel tank although you dont hear about batt expl. in a trunk.
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Re: 2 trunk batteries location ?
[Re: proshiftcharger]
#749263
07/16/10 02:22 PM
07/16/10 02:22 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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I had em split before then when I scaled the car, we moved em both to the pass side and got my rear weights within 10lbs of each other and it runs/hooks better than ever. This is w/Cal-tracs though.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: 2 trunk batteries location ?
[Re: MOPARCHAS]
#749267
07/20/10 11:43 PM
07/20/10 11:43 PM
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Joined: Aug 2006
Posts: 1,340
Pennsylvania
proshiftcharger
OP
pro stock
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OP
pro stock
Joined: Aug 2006
Posts: 1,340
Pennsylvania
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Quote:
sounds stupid but has anybody ever put both batteries on the left rear
seems that on my car the left rear seems to lift the body away from the tire while the right rear is going down have played with the shocks
ladder bar set up
That was one of the reasons for the original post.
Mopars seem to always torque right rear down. So why put the batteries on the right side when it seems they are needed more on the left?
Im guessing its more crucial on a leaf spring car
where youre lacking preload adjustments?? Maybe the ladder bar cars have their limitations too?
Is it safe to say with a four link car battery placement isnt as crucial due to all the adjustments you can make?
Please chime in.
thanks again,
Doug
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Re: 2 trunk batteries location ?
[Re: proshiftcharger]
#749269
07/21/10 02:38 AM
07/21/10 02:38 AM
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Joined: Aug 2003
Posts: 43,305
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,305
Bend,OR USA
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There are some laws of physcics involved in the chassis actions and reactions, I wish I could remember the names of the ancient scientest that they are named for, but I can't  The turning of the drivetrain imparts torque onto the left rear tire which cause the left front to rise in reaction, the rotation also causes the right rear tire to try and lift off of the ground, action and opposite reaction law applys on this. Picture the driveshaft from the rear of the car, as it tuurns the pinion shaft it is forcing the left rear axle, tire and everthing on that side to apply weight onto the ground under the tire, now look at the rotation as it comes to the right side tire, it will try and lift it up instead of forcing it down like the drivers side   Weigh the car if you can and see where the weight needs to be placed to get as much weight as possible on the rear, especially the right side 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 2 trunk batteries location ?
[Re: Cab_Burge]
#749270
07/21/10 02:44 AM
07/21/10 02:44 AM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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Quote:
There are some laws of physcics involved in the chassis actions and reactions, I wish I could remember the names of the ancient scientest that they are named for, but I can't The turning of the drivetrain imparts torque onto the left rear tire which cause the left front to rise in reaction, the rotation also causes the right rear tire to try and lift off of the ground, action and opposite reaction law applys on this. Picture the driveshaft from the rear of the car, as it tuurns the pinion shaft it is forcing the left rear axle, tire and everthing on that side to apply weight onto the ground under the tire, now look at the rotation as it comes to the right side tire, it will try and lift it up instead of forcing it down like the drivers side Weigh the car if you can and see where the weight needs to be placed to get as much weight as possible on the rear, especially the right side
http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html
Newton's Three Laws of Motion.....lol
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: 2 trunk batteries location ?
[Re: proshiftcharger]
#749271
07/21/10 08:42 AM
07/21/10 08:42 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
When running 2 batteries in the trunk
(4 link/4 speed) where/which side is best and why?
Split the difference with 1 on each side?
or
Both on same side..where & why?
Just for simplicity or does it serve for better weight placement or traction??
thanks in advance,
Doug
Are you running a anti roll bar... my opinion it
should be mandatory on a 4 link
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Re: 2 trunk batteries location ?
[Re: MR_P_BODY]
#749272
07/21/10 10:00 AM
07/21/10 10:00 AM
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Joined: Aug 2006
Posts: 1,340
Pennsylvania
proshiftcharger
OP
pro stock
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OP
pro stock
Joined: Aug 2006
Posts: 1,340
Pennsylvania
|
Quote:
Quote:
When running 2 batteries in the trunk
(4 link/4 speed) where/which side is best and why?
Split the difference with 1 on each side?
or
Both on same side..where & why?
Just for simplicity or does it serve for better weight placement or traction??
thanks in advance,
Doug
Are you running a anti roll bar... my opinion it
should be mandatory on a 4 link
Not currently, however I do plan on purchasing one.
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Me too 
If your using wet cell batterys install them so the plates are sitting sideways to the rear, not end ways 
