[DeTomaso] Minimum Battery Size?

[Art Stephens]

Jack,
     I just went out and weighed my battery,  48 pounds!  No wonder my car started so easy,  I'll bet that thing could start a semi!  I got a report back from a guy using the Odyssey PC925 with 380 CCA,  he reports no problem starting his car.  I think Bill Wright is using the same battery in his Superformance GT40 sporting an all aluminum Roush 427 with 10 or 10.25:1  CR?  The PC925 weighs just 26 pounds!  Jack,  I think I just found you an easy way to shed 9 pounds!  I see the PC 680 with 220 CCA only weighs 15.4 lbs!  That would be way cool if it would do the job.  I've been thinking about installing the MSD cockpit adjustable timing control.  Perhaps by backing the timing off at start up,  I could get away with a very small battery?  I'm thinking that with my new aluminum heads,  the smaller battery and a full tank of gas,  I might just weigh in at less than 3000 lbs!  

Thanks Jack,
Art
 
  ----- Original Message ----- 
  From: JDeRyke at aol.com 
  To: artstephens at charter.net ; detomaso at realbig.com 
  Sent: Tuesday, October 02, 2007 2:14 PM
  Subject: Re: [DeTomaso] Minimum Battery Size?


  Art,, I've run a 1000-amp battery and currently, a 735-amp unit. The first weighed 48 lbs, the 2nd only 35- both 'Kirkland' brand from my local Costco. 735 is enough amperage to spin a smoking-hot engine at 10-1/2:1 compression with ease, or to start the engine when stone-cold. 
  Remember if you have a dropped battery, the absolute max width battery you can use is 7-3/8" since thats about all the wider the hole in the front trunk floor can be enlarged. If you still use the std battery mount, about any size will work as long as the negative terminal is covered so the hood doesn't touch. FWIW- J DeRyke


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