[DeTomaso] Dropped Battery Solution for 6328

Mon Feb 21 08:22:39 EST 2022

There are factory bosses on the 351C block on the passenger's side for use as an engine ground.  That's what I use.  I welded a 3/8" grade-8 bolt to the frame.

Plus, use a thin layer of grease on the ground.

I also have my battery mounted in the same area, so it grounds to the same bolt.

Access to the battery isn't as difficult as you'd think.  I'm really happy with this setup.  The battery is out of the front trunk, out of the way, cables are short, battery is a common size, etc.  Nothing but positives.  I got rid of a lot of heavy gauge wiring through the passenger's sill.  My car cranks really fast.

The battery "box" is common.  I believe I bought it at a local speed shop.  It's all metal, so you just run a couple of beads, and it's in place.  It isn't a full box.  It's just, basically, angle iron/steel that holds 1/2 of the battery diagonally, with a second bracket that holds it down.  It's similar to what you'd find on a 70's Ford.  You've seen them before, but I'm not doing a great job describing it.  I need my coffee.

On 2/21/22, 12:34 AM, "DeTomaso on behalf of Mike Drew via DeTomaso" <detomaso-bounces at server.detomasolist.com on behalf of detomaso at server.detomasolist.com> wrote:

    Ken,

    More grounds is good grounds. There is a second factory ground cable from the rear of the transaxle to the rear of the chassis, and I was advised to add a third from one of the starter mounting bolts down to one of the engine mount bolts. 

    Mike

    Sent from my iPad

    > On Feb 20, 2022, at 15:15, Ken Green via DeTomaso <detomaso at server.detomasolist.com> wrote:
    > 
    >    What does it take for a good ground?  I'm not sure just measuring
    >   resistance is enough for a high current draw starter because a short
    >   run of 22 ga wire would show low resistance, but maybe melt is all the
    >   starter current ran though it even briefly.
    >   I have the stud with nuts on both sides of the foot well bulkhead.
    >   Should it be welded?
    >   Ken
    > 
    >   On Sunday, February 20, 2022, 01:27:31 PM PST, Julian Kift
    >   <julian_kift at hotmail.com> wrote:
    >     My factory GT5 has a short ground wire that connects to a stud right
    >   at
    >     the drop battery cross member, no need for along cable run, key is in
    >     just getting a good chassis ground.
    >     Julian
    >       __________________________________________________________________
    >     From: DeTomaso <[1]detomaso-bounces at server.detomasolist.com> on
    >   behalf of
    >     Mike & Elizabeth <[2]mbefthomas2 at gmail.com>
    >     Sent: Sunday, February 20, 2022 12:37 PM
    >     To: 'Ken Green' <[3]kenn_green at yahoo.com>; 'Detomaso List'
    >     <[4]detomaso at server.detomasolist.com>
    >     Subject: Re: [DeTomaso] Dropped Battery Solution for 6328
    >     I think we'll be doing something similar as well.  That element has
    >   not
    >     been fully worked out.  I'll let everyone know how it goes.
    >     Mike Thomas
    >     From: Ken Green <[5]kenn_green at yahoo.com>
    >     Sent: Sunday, February 20, 2022 11:38 AM
    >     To: 'Detomaso List' <[6]detomaso at server.detomasolist.com>; Mike &
    >     Elizabeth <[7]mbefthomas2 at gmail.com>
    >     Subject: Re: [DeTomaso] Dropped Battery Solution for 6328
    >     Wondering where others have connected the ground cable?  I drilled a
    >     17/16 hole and used a stud with nuts on both sides, into the foot
    >   well
    >     to attach the ground cable.
    >     Ken
    >     On Saturday, February 19, 2022, 02:18:00 PM PST, Mike & Elizabeth
    >     <[8]mbefthomas2 at gmail.com <[1]mailto:[9]mbefthomas2 at gmail.com> >
    >   wrote:
    >     I thought I'd share what Doug Braun and I have come up with as a
    >     solution to
    >     a dropped battery for 6328 and 5505.  We decided to go with more of
    >   an
    >     open
    >     design using 1 1/4" x 1/8" angle iron.  The battery mock-up in the
    >   pics
    >     is
    >     of an Optima Yellow Top.  The pieces underneath held in place with
    >   the
    >     C-clamps will be welded to the rest of the battery frame, then the
    >     assembly
    >     will be bolted to the frame through those pieces with Rivnuts so it
    >   is
    >     removable to R&R the steering rack.  There will be threaded tabs of
    >     angle
    >     iron at each end of the inner battery tray for a tie down strap and
    >   an
    >     additional piece of flat 2" iron under the battery to provide added
    >     support.
    >     A removable cover will be made to follow the contour of the trunk
    >   floor
    >     and
    >     the cables will all be run under the trunk to be out of sight.  We'll
    >     weld a
    >     ground stud into the trunk out of the way in the back right corner
    >   and
    >     run a
    >     positive line from the battery to that location so I can hardwire a
    >     connector/bung for a Ford Motorsports battery tender.  That would
    >   also
    >     be
    >     where the car could be jumped if needed.
    >     Mike Thomas
    >     Panteras Northwest
    >     -----Original Message-----
    >     From: Mike & Elizabeth <[10]mbefthomas2 at gmail.com
    >     <[2]mailto:[11]mbefthomas2 at gmail.com> >
    >     Sent: Friday, February 18, 2022 5:39 PM
    >     To: 'Doug Braun' <[12]doug351c at gmail.com
    >   <[3]mailto:[13]doug351c at gmail.com> >
    >     Subject: FW:
    >     Fit check of the battery tray.  Pretty snug in there, good thing it
    >     will be
    >     removable to put the steering rack in.  We're going to add a piece of
    >     flat
    >     steel lengthwise across the opening under the battery.
    >     Mike
    >     -----Original Message-----
    >     From: Mike Thomas <[14]panteramike74 at icloud.com
    >     <[4]mailto:[15]panteramike74 at icloud.com> >
    >     Sent: Friday, February 18, 2022 5:07 PM
    >     To: Mike & Elizabeth Thomas <[16]mbefthomas2 at gmail.com
    >     <[5]mailto:[17]mbefthomas2 at gmail.com> >
    >     Subject:
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    >  12. mailto:doug351c at gmail.com
    >  13. mailto:doug351c at gmail.com
    >  14. mailto:panteramike74 at icloud.com
    >  15. mailto:panteramike74 at icloud.com
    >  16. mailto:mbefthomas2 at gmail.com
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    >  24. mailto:panteramike74 at icloud.com
    >  25. mailto:mbefthomas2 at gmail.com
    >  26. mailto:DeTomaso at server.detomasolist.com
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