In a message dated 1/17/2005 10:23:29 PM Central Standard Time, atlasyts@bellsouth.net writes:

<< The starter pulls down all the
available juice and the computer takes a break. Any comments?
Buly >>

A small backup battery like a garden tractor 530 Amp Hour is great for a race car.

You can crank from one battery and run the electronics from the backup. just for starting. Should anything happen to the battery in the air, you canswitch to the backup to get home.

Starters can draw over 100 amps. Have the battery load tested at a big parts store.
With attention to voltage at different loads. And have an electronics tech put an amp probe on the starter wire to see how much its pulling. Could need a starter, or just some oil on the bushings.  The disadvantage of electronic everything is what you just saw. Lynn E. Hanover