As some of you are aware, my friend and I are building a Miata-based Locost. We are approaching "start" time, and we are looking at battery options. Obviously we want something light. What I don't know is what to look for in order to fire the Miata engine. Thoughts? Cheap is good.
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March 15, 2010 7:42 a.m. ZOO Dork
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March 15, 2010 7:56 a.m. Giant Purple Snorklewacker SuperDork
ZOO wrote:
As some of you are aware, my friend and I are building a Miata-based Locost. We are approaching "start" time, and we are looking at battery options. Obviously we want something light. What I don't know is what to look for in order to fire the Miata engine. Thoughts? Cheap is good.
I'm starting my E30 race car with a lawn tractor battery. IIRC its 100.
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March 15, 2010 8:50 a.m. Keith SuperDork
Depends how easily it starts
I use an Odyssey PC680 with a couple of my Miata engines, it's always worked well.
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March 15, 2010 9:26 a.m. porksboy Dork
Push starts weigh nothing, add nothing to the build budget. They are also easier if you live on a hill
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March 15, 2010 9:35 a.m. Giant Purple Snorklewacker SuperDork
porksboy wrote:
Push starts weigh nothing, add nothing to the build budget. They are also easier if you live on a hill
Not if you live at the bottom
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March 15, 2010 9:44 a.m. iceracer HalfDork
I have the Oyssey PC 680 in my ZX2SR and it starts it even in cold weather.
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March 15, 2010 10:21 a.m. porksboy Dork
Giant Purple Snorklewacker wrote:
porksboy wrote:
Push starts weigh nothing, add nothing to the build budget. They are also easier if you live on the top of a hill
Not if you live at the bottom
Fixed it myself
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March 15, 2010 10:51 a.m. InigoMontoya Reader
There are some Braille subs out there that are nice and light too, I remember a topic finding who manufactures them and finding the cheaper alts out there.
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March 15, 2010 10:51 a.m. InigoMontoya Reader
Double post
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March 15, 2010 11:10 a.m. SkinnyG Reader
Mine is powered by a lawn tractor battery that puts out maybe 250CCA. Most 4's draw less than 150amps to crank.
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April 19, 2010 12:24 p.m. thedge New Reader
If you go to NAPA, they have Deka batteries for cheap. Braille, etc are usually just Dekas. I use an EXT18L for my 944T, and it easily cranked a 2.7 liter four cylinder over in minus 20F without any cold stat tuning
There is the EXT12 which gives 180CCAs at 0F and weighs 9.4 pounds.
Main page http://www.eastpenn-deka.com/default.aspx?pageid=510
Datasheet with sizes weights and CCAs http://www.eastpenn-deka.com/assets/base/0278.pdf
