[Efi332] Crank trigger wheel and sensor source

[BowTieVette at aol.com]

First off, I'll say crank wheel and sensor setup is probably  the most 
critical issue in setting up any efi system, diy or otherwise. 
 
Although the VR sensors work well, they do require some careful selection  to 
make sure you have adequate signal while cranking and also do not saturate  
the LM1815 at your maximum rpm. They are also more sensitive to crank wheel  
runout and spacing than Hall Effect sensors. Not big problems, but they do  
require some attention to detail. 
 
Cherry makes a whole line of hall effect gear tooth sensors that work well  
too. These require 3 wires vs 2 for the VR, and a pullup, but work well. You 
may  want to consider using twisted pair with these as well. They are in the  
$30-50 range at Digikey.
Its not a bad idea to set up your sensor bracketry to be able to accomodate  
both to give you some options. The sensors aren't that pricey.
 
As for wheels, Electromotive has the most complete range in the 60-2  flavor, 
and you already know about the special LS1 wheels in I think the 30-1  
format. If Electromotive does not have exactly the right size for you, you  might 
consider drawing one up and having it cut for you. You'll want to watch  
tolerances on the teeth, but doing this will allow you to customize the mounting  
arrangement to allow easy and precise centering of the wheel to control the  
runout. 
 
 
 
In a message dated 5/27/2006 9:19:14 A.M. Eastern Standard Time,  
dave_irina at skycasters.net writes:

Hello  list,

I'm looking for a 60-2 trigger wheel for my LS1 engine, and some  sort of
sensor to drive the LM1815 adaptive sensor amp in the hardware. I'm  aware of
the Electromotive wheels and sensors, and the SW VR9000. I'm just  wondering
what other options I might have before I make a purchase  decision.

Thanks for any input you might be able to  offer,

Dave


 
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