[DeTomaso] Cranking amps

[audionut at hushmail.com]

Sounds about right to me.   I have a 60 Cadillac Hearse with a stock
390 V8 that every battery I ever used struggles to turn over no matter
how high the CCA.  The latest one was a cheap Autozone number (cca 350
or so) that finally kicked the bucket a few weeks after it's 7th
birthday.  The new battery I put in (a NAPA "heavy duty" unit) cranked
it a little easier…..for about a week. No doubt the culprit is the
stock GM starter (nothing newer is available), a battery-slaying lump
of iron whose guts cannot be updated, only rebuilt to the cave man
specs of it's day.   Oddly enough, the Motorcraft unit in my Pantera
is still cranking strong since I bought the car in Jan. 2006.  
 Sent using Hushmail
On December 23, 2015 at 11:24 AM, "Jack DeRyke via DeTomaso" 
wrote:Cal, the actual amp requirement will depend on the compression
in the engine, the temperature, the starter you're using (gear-drive
starters are more efficient than direct-drive stockers), condition of
the cables and whether you run a good ground between the block and
chassis. So there's not really an exact answer. Good luck- J DeRyke
-----Original Message-----
From: DeTomaso Pantera 
To: detomaso 
Sent: Tue, Dec 22, 2015 7:10 pm
Subject: [DeTomaso] Cranking amps

Hi:
   I read the posts regarding the amount of cranking amps required to
turn
   a V-8 but all the responses were about the capability of the
battery to
   supply the current, but none addressed my question.
   However, I did a little more digging and this is what I found
   out:A
[1]http://www.linnbenton.edu/auto/fall/electric/start_test.pdf
   Tests from this automobile college class experimentation lead to
the
   following:A
   "8 cylinder gas -typically draws up to 250 amps."
   The college test also considered cold-started engines as well as
   overheated engines as likely drawing more current that what was
   discussed.A
   Thanks again,
   Cal #2428.

References

   1. http://www.linnbenton.edu/auto/fall/electric/start_test.pdf
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-------------- next part --------------
   Sounds about right to me.



   I have a 60 Cadillac Hearse with a stock 390 V8 that every battery I
   ever used struggles to turn over no matter how high the CCA.  The
   latest one was a cheap Autozone number (cca 350 or so) that finally
   kicked the bucket a few weeks after it's 7th birthday.  The new battery
   I put in (a NAPA "heavy duty" unit) cranked it a little easiera|..for
   about a week.



   No doubt the culprit is the stock GM starter (nothing newer is
   available), a battery-slaying lump of iron whose guts cannot be
   updated, only rebuilt to the cave man specs of it's day.



   Oddly enough, the Motorcraft unit in my Pantera is still cranking
   strong since I bought the car in Jan. 2006.
   Sent using Hushmail
   On December 23, 2015 at 11:24 AM, "Jack DeRyke via DeTomaso"
   <detomaso at poca.com> wrote:

     Cal, the actual amp requirement will depend on the compression in
     the engine, the temperature, the starter you're using (gear-drive
     starters are more efficient than direct-drive stockers), condition
     of the cables and whether you run a good ground between the block
     and chassis. So there's not really an exact answer. Good luck- J
     DeRyke
     -----Original Message-----
     From: DeTomaso Pantera <tampapantera at gmail.com>
     To: detomaso <detomaso at poca.com>
     Sent: Tue, Dec 22, 2015 7:10 pm
     Subject: [DeTomaso] Cranking amps
     Hi:
     I read the posts regarding the amount of cranking amps required to
     turn
     a V-8 but all the responses were about the capability of the battery
     to
     supply the current, but none addressed my question.
     However, I did a little more digging and this is what I found
     out:A
     [1][1]http://www.linnbenton.edu/auto/fall/electric/start_test.pdf
     Tests from this automobile college class experimentation lead to the
     following:A
     "8 cylinder gas -typically draws up to 250 amps."
     The college test also considered cold-started engines as well as
     overheated engines as likely drawing more current that what was
     discussed.A
     Thanks again,
     Cal #2428.
     References
     1. [2]http://www.linnbenton.edu/auto/fall/electric/start_test.pdf
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References

   1. http://www.linnbenton.edu/auto/fall/electric/start_test.pdf
   2. http://www.linnbenton.edu/auto/fall/electric/start_test.pdf
   3. http://poca.com/mailman/listinfo/detomaso_poca.com