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Porsche Crest How to mount my new optima red top battery??

I have a new optima red top battery waiting to go in my 88 Carrera, but there is no way to tie it down?? Any one have an easy fix?? I have 2 more 911s that I plan on using optimas in, but want to secure them.

TIA,
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Old 08-29-2006, 07:21 PM
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If you search you'll find lots of methods for attaching it. Usually this involves bolting a plate to the bottom of the Optima and then using hte stock hold down clamp. AJ-USA I believe also sells a bracket. I don't think Pelican sells it.
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Old 08-29-2006, 07:35 PM
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I recall seeing a company that sells a sled/bracket. I made a very cool custom sled using delrin and high density plastic along with nuts and bolts.. I used the cnc mill at work and carved out the round shapes...very time consuming but came out nice... I like not having acid and fumes. I'm gradually replacing all my car batteries with Optima... the last one went in the Suburban after the original types leaked acid as they always seem to.
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Old 08-29-2006, 07:55 PM
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Quote:
Originally posted by hcoles
I recall seeing a company that sells a sled/bracket. I made a very cool custom sled using delrin and high density plastic along with nuts and bolts.. I used the cnc mill at work and carved out the round shapes...very time consuming but came out nice... I like not having acid and fumes. I'm gradually replacing all my car batteries with Optima... the last one went in the Suburban after the original types leaked acid as they always seem to.
Any pix?? Thanks guys!!
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Old 08-29-2006, 08:04 PM
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I think a 1/4" aluminum plate bolted to the bottom of the Red Top, then the plate held down with the factory nut is the cleanest and easiest install. Or you can roll your own.
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Old 08-29-2006, 08:46 PM
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I have a red top Optima in my SC but I don't have a pic to show you.

I bought the plate from AJ-USA because Pelican doesn't sell it. Another Pelican (Vash) gave me a couple of really long zip ties (30") to wrap around the plate and battery. Then I bolted down the plate.

You can buy the zip ties from Home Depot in the HVAC aisle.

This set up is good enough for a daily driver but you'd probably want a more robust solution for tracking. Go with something like Don's above.
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Old 08-29-2006, 09:58 PM
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Just an idea....
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Old 08-29-2006, 10:16 PM
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Anyone got the part # for the plate from AJ-USA? I plan to install a Yellow Top Deep Cycle Optima shortly too.
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Old 08-29-2006, 10:17 PM
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Triad offers a basic aluminum 'sled' for $ 26.00
http://www.triadwestperformance.com/Products.htm
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Old 08-29-2006, 10:38 PM
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It's ALL in here ! -->from a previous post...with pics !
- Wil
======================

Here's a more complete account of this post..special thanks to Alan DuBoff:
---Wil Ferch


Subject: Optima Mounting

Fri, 24 Mar 2000 06:36:37 -0800

Author: Alan DuBoff

Subject: Upgrading to Optima w/template for mounting plate

Body: I have seen a few pieces of information on the Optima battery,
and I think these batteries are really good. They don't leak,
and they won't gather corrosion around the battery terminals
either.

This is something that anyone on the list can do, even if you
are not the type of person that likes to change their own oil,
you can still perform this easy upgrade to an Optima battery.

I have created a template to produce a plate for a '74-'89 911
to mount the Optima battery. This is for a standard 800U or 800S,
I don't know about the other models. Sorry, I don't know how to
get one in another style car, the classics need to mount the
Optima on it's side so it will fit I've read, and I don't know
about the 964s or 993s. I bought a plate from AJ-USA as I didn't
want to reinvent the wheel, but when I saw what I got for $31,
it seemed a little high...

For starters, you can try and print the bitmap (it's in
Windows Bitmap format since most folks use it...I use Unix/Linux,
and can probably create some other format files, but I can't get
them to print out the proper dimensions. These bitmaps will print
in either Adobe Photoshop, or the Image program that ships with
Windows NT 4.0 (I have no idea about Windows 98 or Windows 2000,
I use Unix/Linux most all the time).

If you print the optima_sizes.bmp out and the sizes don't match,
you will not be able to use the template. The other template which
is named optima.jpg is just cleaner with no dimensions and less
clutter..

You can make a plate out of anything, one person on the list told
me they created one with plastic, and I think plexiglass (my
reccomendation, as it's pretty easy to cut and drill) would work
fine, or even plywood, pressboard, or you can use aluminum like
the AJ-USA plate I purchased. While aluminum works well, it's not
easy for most DIY folks to fabricate in their garage typically.

You should use stainless steel flathead bolts with nyloc nuts.
You can get them at your local hardware store (I like to buy from
West Marine, since boating folks use a lot of stainless and they
have a good selection).

NOTE: if you do use aluminum with stainless bolts, it wouldn't hurt
to add a dab of alumilastic or similar that can be gotten at most
any marine chandlery, I got myself into the habit of using it as the
two metals can cause electrolisys of such...here is a pic of it:

http://www.SoftOrchestra.com/porsch...alumilastic.jpg

1/4" bolts that are 1 1/2" long should be fine. Countersink the bottom
side of the plate, so the heads will sit flat.

The plate should be 12 inches long (305cm). and 6 5/8 inches
wide (168 cm).

I am using .bmp as it is fairly common and should print out from a
variety of graphics programs, but check the sizes. You will need to
save these files, use shift-lmb in Netscape.

http://www.SoftOrchestra.com/porsch...ptima_sizes.bmp
http://www.SoftOrchestra.com/porsche/optima/optima.bmp

Line the template up on one edge.

Here is a picture of the AJ-USA plate:

http://www.SoftOrchestra.com/porsch...mount_plate.jpg

Here is a picture of the Optima battery next to the mounting plate:

http://www.SoftOrchestra.com/porsch...mount_plate.jpg

The Optima battery mounted to the plate:

http://www.SoftOrchestra.com/porsch...ima_mounted.jpg

The old battery. Note that mine was not attached to the mounting
bracket anyway, but it looks like it was holding it in place anyway:

http://www.SoftOrchestra.com/porsch...old_battery.jpg

A new ground strap was needed that was just a couple inches longer.
My local auto parts store (Winchester Auto in the SF Bay area) had
a 9 inch ground strap for $4. Here it is next to the old one:

http://www.SoftOrchestra.com/porsch...round_strap.jpg

Here is the new Optima battery installed:

http://www.SoftOrchestra.com/porsch...new_battery.jpg

And of course, back in stealth mode, hiding in the trunk:

http://www.SoftOrchestra.com/porsch...tealth_mode.jpg

--

Alan DuBoff
Software Orchestration, Inc.
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Old 08-30-2006, 08:49 AM
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what the heck happened to the photos?...they ( now) don't load !!!

Seems to work in this embedded link---> Optima battery questions

- Wil
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Last edited by Wil Ferch; 08-30-2006 at 09:11 AM..
Old 08-30-2006, 09:08 AM
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not sure how much this helps but this is what I did

Old 09-05-2006, 04:43 PM
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hcoles:

Nice!

Component photos/design dwgs/parts list/sources?

How much do you get for a kit for Grete (my '89)?

Frank
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Old 10-08-2006, 09:52 AM
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KS:

did ya look inside the embedded link I proposed ?? .....

- Wil
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Old 10-08-2006, 01:11 PM
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I made a copy of that AJ-USA plate out of 1/4" aluminum plate....a piece of scrap given to me by a friend. Bolts, washers, nylock nuts at Lowes cost me about 3 bucks. Then about 40 minutes of my time and it was done. I did, however, have to buy a grounding strap that was about three inches longer in order to properly reach the negative battery terminal.

Steve
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Old 10-08-2006, 02:17 PM
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What i did.
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Old 10-13-2006, 03:05 PM
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