View Single Post
  #73 (permalink)  
Old 02-20-2012, 08:53 AM
bobcowan's Avatar
bobcowan bobcowan is offline
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2007
Location: Colorado Springs, CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,430
Not Ranked     
Default

One of my concerns with using a coil pack, is what happens if you shred a distributer gear? With a distributer the engine dies immediately, because the rotor stops spinning. The engine quits running before the oil pressure drops. With a crank trigger and a coil pack, the engine will continue to run until the crank completly seizes in the block. That's a bad thing.

So, I routed the power lead of the hall sensor through a summit oil pressure switch. If the oil pressure switch drops below 7psi, it will cut power to the hall sensor. Without a crank signal, the engine will immediatly die.

I don't really know how that will affect starting, especially when hot. a delay when cold is good. A delay when hot, maybe not so good. So, I also installed a bypass pushbutton switch under the dash.
__________________
.boB "Iron Man"
NASA Rocky Mountain TTU #42
www.RacingtheExocet.com
BDR #1642 - Supercharged Coyote, 6 speed Auto
Reply With Quote